BL-001-1250 contains a proprietary mixture of proteins and buffer reagents designed to reduce the sIgA cross-reactivity present in certain substrates such as milk. Following ELISA assays in the Biosensis Rapid TM ELISA range have been validated to achieve accurate results using BL-001-1250: BEK-2211, Mature BDNF; Application: human milk One vial of BL-001-1250 contains 1250 ?g of proprietary immunoglobulins, which is sufficient as sample diluent additive for one 96-well plate. Other ELISA assays may also benefit from addition of blocker BL-001-1250, but require optimization of working concentration and assay validation for accurate results.
Product Type:
Immunoassay Blocker
Format:
Lyophilized.
Species Reactivity:
Human
Applications:
ELISA
Application Details:
Immunoassay blocker to reduce or eliminate secretory IgA (sIgA) interference in sandwich ELISA assays for validated sample applications.
Biosensis Brand:
Biosensis®
Shelf Life:
12 months after date of receipt (unopened vial).
Use:
For research use only.
Storage:
2-8°C
Purification:
Purified
Target:
Secretory IgA immunoassay Blocker for BEK-2211 and similar ELISA assays
The Biosensis Mature BDNF/proBDNF Combo RapidTM enzyme-linked immunosorbent assay (ELISA) Kit combines individual, but complementary ELISA kits for the two most important BDNF isoforms: Mature BDNF (<a href="https://www.biosensis.com/brain-derived-neurotrophic-factor-mature-bdnf-mature-human-mouse-rat-rapidtm-elisa-assay.html" target="_blank">BEK-2211 ) and full-length proBDNF (<a href="https://www.biosensis.com/probdnf-rapid-elisa-assay.html" target="_blank">BEK-2237 ). Both kits are sandwich ELISAs, useful for the quantification of mature BDNF and proBDNF in less than 4 hours in cell culture supernatants, serum, plasma (citrate and EDTA), mouse and rat cell lysates and rat brain extracts only if used as directed, with a simplified protocol and no loss of sensitivity or specificity. Please refer to the most current kit protocols for <a href="https://www.biosensis.com/brain-derived-neurotrophic-factor-mature-bdnf-mature-human-mouse-rat-rapidtm-elisa-assay.html" target="_blank">BEK-2211 (Mature BDNF Rapid TM ELISA) and <a href="https://www.biosensis.com/probdnf-rapid-elisa-assay.html" target="_blank">BEK-2237 (proBDNF Rapid TM ELISA), for specific use instructions for each substrate application, in particular blood samples. BEK-2241 is the preferred Combo kit for human blood samples. The Mature BDNF ELISA kit consists of a pre-coated mouse monoclonal anti-mature BDNF capture antibody, a biotinylated anti-mature BDNF detection antibody and horseradish peroxidase (HRP)-conjugated streptavidin. The proBDNF ELISA kit consists of a pre-coated monoclonal anti-proBDNF capture antibody, a biotinylated anti-mature BDNF detection antibody and horseradish peroxidase (HRP)-conjugated streptavidin. The addition of a substrate (3,3',5,5'-tetramethylbenzidine, TMB) yields a coloured reaction product which is directly proportional to the concentration of mature BDNF or proBDNF present in samples and protein standards. A BDNF and proBDNF positive control (QC sample) is provided to assure consistent assay performance. Both ELISA kits contain high quality protein calibrators. The Mature BDNF ELISA kit employs a recombinant E.coli-derived human mature BDNF standard approved by the World Health Organization (WHO, www.nibsc.org). The amino acid sequence of mature BDNF is identical for human, mouse, rat and a number of other species. This kit therefore is suitable to measure mature BDNF in all these species and uses the same antibodies and antigen. The proBDNF ELISA kit employs a recombinant mammalian, cleavage-resistant human proBDNF standard produced by Biosensis and validated against externally available proBDNF proteins. Due to a high degree of amino acid sequence homology, mouse and rat proBDNF can be quantified and expressed as human proBDNF equivalents. Internal Biosensis validation suggests that the use of the human standard provided in this kit will provide estimates that are identical, or close, to the actual levels of rat and mouse proBDNF present in rodent samples. Note that accurate proBDNF quantification in human serum and citrate-plasma requires the addition of Heterophilic Antibody Blocker <a href="https://www.biosensis.com/heterophilic-antibody-blocker-for-bek-2217-bek-2221-bek-2237-bek-2240-and-similar-elisa-assays.html" target="_blank">BL-004-500 provided in the kit, and available for purchase separately. This ELISA kit has not been tested for other applications. It has been configured for research use only and is not to be used for diagnostic or clinical procedures.
Background Info:
BDNF belongs to the neurotrophin family and regulates the survival and differentiation of neurons during development. The alterations in BDNF expression induced by various kinds of brain insult including stress, ischemia, seizure activity and hypoglycemia, may contribute to some pathologies such as depression, epilepsy, Alzheimer's, and Parkinson's disease. FUNCTION: Promotes the survival of neuronal populations that are all located either in the central nervous system or directly connected to it. Major regulator of synaptic transmission and plasticity at adult synapses in many regions of the CNS. The versatility of BDNF is emphasized by its contribution to a range of adaptive neuronal responses including long-term potentiation (LTP), long-term depression (LTD), certain forms of short-term synaptic plasticity, as well as homeostatic regulation of intrinsic neuronal excitability. SUBUNIT: Monomers and homodimers. Binds to NTRK2/TRKB. SUBCELLULAR LOCATION: Secreted protein. Post Translation Modification (PTM): The propeptide is N-glycosylated and glycosulfated. PTM: Converted into mature BDNF by plasmin (PLG) (By similarity). DISEASE: Defects in BDNF are a cause of congenital central hypoventilation syndrome (CCHS); also known as congenital failure of autonomic control or Ondine curse. CCHS is a rare disorder characterized by abnormal control of respiration in the absence of neuromuscular or lung disease, or an identifiable brain stem lesion. A deficiency in autonomic control of respiration results in inadequate or negligible ventilatory and arousal responses to hypercapnia and hypoxemia. CCHS is frequently complicated with neurocristopathies such as Hirschsprung disease that occurs in about 16% of CCHS cases. SIMILARITY: Belongs to the NGF-beta family.
Product Type:
ELISA Assay
Species Reactivity:
Human,Mouse,Rat
Immunogen:
See BEK-2211 & BEK-2237 for specific details
Applications:
ELISA
Application Details:
ELISA. For the quantification of Mature BDNF and proBDNF in Culture Supernatant, Serum, Plasma (Citrate), Plasma (EDTA), Cell Lysates, Tissue Homogenates. Please download the detailed product insert for complete instructions for the successful use of this ELISA. Use only as directed.
Alternative Names:
Brain-derived neurotrophic factor; Abrineurin
Biosensis Brand:
Rapid
Detection Method:
Colorimetric
Shelf Life:
12 months after date of receipt unopened.
Use:
For research use only.
Kit Components:
The ELISA kit box contains 2 x 96-well pre-coated strip plates per kit (1 x BDNF antibody, 1 x proBDNF antibody coated plate), protein standards, QC sample, detection reagents, heterophilic antibody blocker, wash and sample buffers, substrate buffer and detailed protocols.
Specificity:
Mature BDNF ELISA: Human, mouse, rat BDNF and numerous other species. Although the BDNF assay antibodies are raised against the mature domain, the mature BDNF ELISA preferentially detects mature BDNF over full-length proBDNF.
proBDNF ELISA: Human, mouse and rat proBDNF. The capture antibody used in the proBDNF ELISA kit binds to epitopes within the pro-domain of proBDNF. Thus, this ELISA detects the full length and potentially truncated form of proBDNF, and does not quantify mature BDNF.
Typical limit of detection (LOD) for mature BDNF is less than 2 pg/mL, and 6 pg/mL for proBDNF determined as 150% of the blank value.
Cross Reactivity:
Cross-reactivity of BDNF isoforms: Mature BDNF ELISA: No cross-reactivity is observed for nerve growth factor (NGF), neurotrophin-3 (NT-3), NT-4/5, glial cell line-derived neurotrophic factor (GDNF) and vascular endothelial growth factor (VEGF165) tested at 25 ng/mL in assay buffer. The reactivity of full-length proBDNF (0.125 ng/mL - 5 ng/mL) was determined in six independent assays using proBDNF proteins from four different sources (mammalian and bacterial, wild-type and mutated). The average cross-reactivity of proBDNF was found to be 5.3% +/- 0.5% in weight (w/v) concentration, or 12.1% +/- 1.2% in molar concentration (mean +/- SEM). proBDNF ELISA: Mature BDNF cross-reactivity was assessed by spiking 28 kDa mature BDNF protein obtained from WHO (www.nibsc.org) into a 1/5 diluted human serum sample at 5 ng/mL, which represents a BDNF concentration level of 25 ng/mL in undiluted, normal human serum. Cross-reactivity of mature BDNF was < 0.3% (w/v), or < 0.1% in molar concentration. The assay antibodies do not cross-react with nerve growth factor (NGF), neurotrophin-3 (NT-3) or NT-4/5.
The Biosensis Mature BDNF/proBDNF Combo Rapid TM enzyme-linked immunosorbent assay (ELISA) Kit combines individual, but complementary ELISA kits for the two most important BDNF isoforms: Mature BDNF (<a href="https://www.biosensis.com/brain-derived-neurotrophic-factor-mature-bdnf-mature-human-mouse-rat-rapidtm-elisa-assay.html" target="_blank">BEK-2211 ) and full-length proBDNF (<a href="https://www.biosensis.com/brain-derived-neurotrophic-factor-pro-probdnf-human-mouse-rat-rapidtm-elisa-assay.html" target="_blank">BEK-2217 ). Both kits are sandwich ELISAs, useful for the quantification of mature BDNF and proBDNF in less than 4 hours in cell culture supernatants, serum, plasma (citrate), cell lysates and brain extracts only if used as directed, with a simplified protocol and no loss of sensitivity or specificity. Please refer to the most current kit protocols for <a href="https://www.biosensis.com/brain-derived-neurotrophic-factor-mature-bdnf-mature-human-mouse-rat-rapidtm-elisa-assay.html" target="_blank">BEK-2211 (Mature BDNF Rapid TM ELISA) and <a href="https://www.biosensis.com/brain-derived-neurotrophic-factor-pro-probdnf-human-mouse-rat-rapidtm-elisa-assay.html" target="_blank">BEK-2217 (proBDNF Rapid TM ELISA), for specific use instructions for each substrate application, in particular blood samples. For human blood samples, we suggest the use of <a href="https://www.biosensis.com/mature-bdnf-probdnf-combo-bek-2211-2237-human-mouse-rat-rapidtm-elisa-assay.html" target="_blank">BEK-2241 (Mature BDNF/proBDNF Combo kit) . The Mature BDNF ELISA kit consists of a pre-coated mouse monoclonal anti-mature BDNF capture antibody, a biotinylated anti-mature BDNF detection antibody and horseradish peroxidase (HRP)-conjugated streptavidin. The proBDNF ELISA kit consists of a pre-coated polyclonal anti-proBDNF capture antibody, a biotinylated anti-mature BDNF detection antibody and horseradish peroxidase (HRP)-conjugated streptavidin. The addition of a substrate (3,3',5,5'-tetramethylbenzidine, TMB) yields a coloured reaction product which is directly proportional to the concentration of mature BDNF or proBDNF present in samples and protein standards. A BDNF and proBDNF positive control (QC sample) is provided to assure consistent assay performance. Both ELISA kits contain high quality protein calibrators. The Mature BDNF ELISA kit employs a recombinant E.coli-derived human mature BDNF standard approved by the World Health Organization (WHO, www.nibsc.org). The amino acid sequence of mature BDNF is identical for human, mouse, rat and a number of other species. This kit therefore is suitable to measure mature BDNF in all these species and uses the same antibodies and antigen. The proBDNF ELISA kit employs a recombinant mammalian, cleavage-resistant human proBDNF standard produced by Biosensis and validated against externally available proBDNF proteins. Due to a high degree of amino acid sequence homology, mouse and rat proBDNF can be quantified and expressed as human proBDNF equivalents. Internal Biosensis validation suggests that the use of the human standard provided in this kit will provide estimates that are identical, or close, to the actual levels of rat and mouse proBDNF present in rodent samples. Note that accurate proBDNF quantification in human serum and citrate-plasma requires the addition of Heterophilic Antibody Blocker <a href="https://www.biosensis.com/heterophilic-antibody-blocker-for-bek-2217-bek-2221-bek-2237-bek-2240-and-similar-elisa-assays.html" target="_blank">BL-004-500 provided in the kit, and available for purchase separately. This ELISA kit has not been tested for other applications. It has been configured for research use only and is not to be used for diagnostic or clinical procedures.
Background Info:
BDNF belongs to the neurotrophin family and regulates the survival and differentiation of neurons during development. The alterations in BDNF expression induced by various kinds of brain insult including stress, ischemia, seizure activity and hypoglycemia, may contribute to some pathologies such as depression, epilepsy, Alzheimer's, and Parkinson's disease. FUNCTION: Promotes the survival of neuronal populations that are all located either in the central nervous system or directly connected to it. Major regulator of synaptic transmission and plasticity at adult synapses in many regions of the CNS. The versatility of BDNF is emphasized by its contribution to a range of adaptive neuronal responses including long-term potentiation (LTP), long-term depression (LTD), certain forms of short-term synaptic plasticity, as well as homeostatic regulation of intrinsic neuronal excitability. SUBUNIT: Monomers and homodimers. Binds to NTRK2/TRKB. SUBCELLULAR LOCATION: Secreted protein. Post Translation Modification (PTM): The propeptide is N-glycosylated and glycosulfated. PTM: Converted into mature BDNF by plasmin (PLG) (By similarity). DISEASE: Defects in BDNF are a cause of congenital central hypoventilation syndrome (CCHS); also known as congenital failure of autonomic control or Ondine curse. CCHS is a rare disorder characterized by abnormal control of respiration in the absence of neuromuscular or lung disease, or an identifiable brain stem lesion. A deficiency in autonomic control of respiration results in inadequate or negligible ventilatory and arousal responses to hypercapnia and hypoxemia. CCHS is frequently complicated with neurocristopathies such as Hirschsprung disease that occurs in about 16% of CCHS cases. SIMILARITY: Belongs to the NGF-beta family.
Product Type:
ELISA Assay
Species Reactivity:
Human,Mouse,Rat
Immunogen:
See BEK-2211 & BEK-2217 for specific details
Applications:
ELISA
Application Details:
ELISA. For the quantification of Mature BDNF and proBDNF in Culture Supernatant, Serum, Plasma (Citrate), Cell Lysates, Tissue Homogenates. Please download the detailed product insert for complete instructions for the successful use of this ELISA. Use only as directed.
The ELISA kit box contains 2 x 96-well pre-coated strip plates per kit (1 x BDNF antibody, 1 x proBDNF antibody coated plate), protein standards, QC sample, detection reagents, heterophilic antibody blocker, wash and sample buffers, substrate buffer and detailed protocols.
Specificity:
Mature BDNF ELISA: Human, mouse, rat BDNF and numerous other species. Although the BDNF assay antibodies are raised against the mature domain, the mature BDNF ELISA preferentially detects mature BDNF over full-length proBDNF. proBDNF ELISA: Human, mouse and rat proBDNF. The capture antibody used in the proBDNF ELISA kit binds to epitopes within the pro-domain of proBDNF. Thus, this ELISA detects the full length and potentially truncated form of proBDNF, and does not quantify mature BDNF.
Typical limit of detection (LOD) for mature BDNF is less than 2 pg/mL, and 10 pg/mL for proBDNF determined as 150% of the blank value.
Cross Reactivity:
Cross-reactivity of BDNF isoforms: Mature BDNF ELISA: No cross-reactivity is observed for nerve growth factor (NGF), neurotrophin-3 (NT-3), NT-4/5, glial cell line-derived neurotrophic factor (GDNF) and vascular endothelial growth factor (VEGF165) tested at 25 ng/mL in assay buffer. The reactivity of full-length proBDNF (0.125 ng/mL - 5 ng/mL) was determined in six independent assays using proBDNF proteins from four different sources (mammalian and bacterial, wild-type and mutated). The average cross-reactivity of proBDNF was found to be 5.3% +/- 0.5% in weight (w/v) concentration, or 12.1% +/- 1.2% in molar concentration (mean +/- SEM). proBDNF ELISA: A cross-reactivity of 2% in weight concentration (0.9% in molar concentration) has been observed for mature BDNF assayed at 25 ng/mL (893 pmol/L) in Assay Diluent A.Due to a high degree of sequence homology, this human proBDNF ELISA kit cross-reacts with the mouse and rat form of proBDNF. Other species have not yet been tested, but cross-reactivity with a wide range of mammalian forms of proBDNF is expected.The antibodies do not cross-react with nerve growth factor (NGF), neurotrophin-3 (NT-3) or NT-4/5.
The Biosensis CE Marked BDNF Rapid enzyme-linked immunosorbent assay (ELISA) Kit is a sandwich ELISA that allows the preferential quantification of mature BDNF in less than 3 hours. This kit consists of a pre-coated mouse monoclonal anti-BDNF capture antibody, a biotinylated anti-BDNF detection antibody and horseradish peroxidase (HRP)-conjugated streptavidin. The addition of a substrate (3,3',5,5'-tetramethylbenzidine, TMB) yields a colored reaction product which is directly proportional to the concentration of BDNF present in samples and protein standards. This BDNF ELISA kit employs a recombinant human BDNF standard approved by the World Health Organization (WHO, <a href="http://www.nibsc.org">www.nibsc.org ). This kit is suitable to measure mature BDNF in human serum and citrate-treated plasma samples only. The antibodies used in this ELISA kit bind epitopes within the mature domain of the protein and therefore recognize the mature as well as the pro-form of BDNF. However, cross-reactivity to the full-length proBDNF protein is low. This CE Marked BDNF Rapid ELISA [Cat. No. BEK-2211-CE] Kit is approved for in-vitro diagnostic (IVD) applications in the European Economic Area (EEA). It has been developed by Biosensis and is manufactured by Calbiotech Inc. (<a href="https://www.calbiotech.com">www.calbiotech.com ) for Biosensis. <font size="3">BEK-2211-CE is not approved for in-vitro diagnostic (IVD) applications in the United States. For research on human blood, customers MUST order the catalog number <a href="https://www.biosensis.com/brain-derived-neurotrophic-factor-mature-bdnf-mature-human-mouse-rat-rapidtm-elisa-assay.html" target="_blank">BEK-2211 . This research-use-only ELISA kit can be used for human and animal research purposes worldwide, and has been validated for a wider range of sample types and species.
Background Info:
BDNF belongs to the neurotrophin family and regulates the survival and differentiation of neurons during development. The alterations in BDNF expression induced by various kinds of brain insult including stress, ischemia, seizure activity and hypoglycemia, may contribute to some pathologies such as depression, epilepsy, Alzheimer's, and Parkinson's disease. FUNCTION: Promotes the survival of neuronal populations that are all located either in the central nervous system or directly connected to it. Major regulator of synaptic transmission and plasticity at adult synapses in many regions of the CNS. The versatility of BDNF is emphasized by its contribution to a range of adaptive neuronal responses including long-term potentiation (LTP), long-term depression (LTD), certain forms of short-term synaptic plasticity, as well as homeostatic regulation of intrinsic neuronal excitability. SUBUNIT: Monomers and homodimers. Binds to NTRK2/TRKB. SUBCELLULAR LOCATION: Secreted protein. Post Translation Modification (PTM): The propeptide is N-glycosylated and glycosulfated. PTM: Converted into mature BDNF by plasmin (PLG) (By similarity). DISEASE: Defects in BDNF are a cause of congenital central hypoventilation syndrome (CCHS); also known as congenital failure of autonomic control or Ondine curse. CCHS is a rare disorder characterized by abnormal control of respiration in the absence of neuromuscular or lung disease, or an identifiable brain stem lesion. A deficiency in autonomic control of respiration results in inadequate or negligible ventilatory and arousal responses to hypercapnia and hypoxemia. CCHS is frequently complicated with neurocristopathies such as Hirschsprung disease that occurs in about 16% of CCHS cases. SIMILARITY: Belongs to the NGF-beta family.
Product Type:
ELISA Assay
Species Reactivity:
Human
Immunogen:
Recombinant human BDNF with an N-terminal methionine residue, made in E. coli (WHO reference reagent)
Applications:
ELISA
Application Details:
ELISA. For the quantification of Brain-derived neurotrophic factor, mature (BDNF, mature) in Serum, Plasma (Citrate). BEK-2211-CE is expressly designed and tested only for use on human blood and plasma samples. Any other use is deemed "off label use" and thus the performance characteristics of the assay will have to be determined by the end user, and such results are not supported by Biosensis or CalBioTech at this time. Please download the detailed product insert for complete instructions for the successful use of this ELISA. Use only as directed.
See BEK-2211-2P-CE protocol insert for specific expiration dating of the kit and its components.
Use:
Approved for in-vitro diagnostic (IVD) applications in the European Economic Area (EEA). It has been developed by Biosensis and is manufactured by Calbiotech Inc. (www.calbiotech.com) for Biosensis.
This kit is not approved for in-vitro diagnostic (IVD) applications in the United States. For research on human blood, customers MUST order the catalog number BEK-2211.
Kit Components:
The ELISA kit box contains 96-well pre-coated strip plate(s), protein standards, detection reagents, wash and sample buffers, substrate buffer and detailed protocols.
Specificity:
Human BDNF when used as directed.
Storage:
2-8°C
Range:
7.8 pg/mL - 500 pg/mL
Sample Type:
Plasma (Citrate),Serum
Sensitivity:
Typical limit of detection (LOD) for BDNF is < 3 pg/mL determined by calculating the mean + 2x standard deviation of mean of blank (n=20).
The Biosensis Mature BDNF Rapid TM enzyme-linked immunosorbent assay (ELISA) Kit is a sandwich ELISA that allows the quantification of mature BDNF in less than 3 hours in cell culture supernatants, serum, plasma (citrate and EDTA), pig serum, cell lysates, brain extracts, human milk and Sheep CSF only if used as directed, with a simplified protocol and no loss of sensitivity or specificity. Please refer to the kit protocol for specific use instructions for each substrate application, in particular blood samples, human milk and CSF. Note that accurate quantification of BDNF in human milk requires a secretory IgA (sIgA) blocker which can be purchased separately (<a href="https://www.biosensis.com/secretory-iga-blocker-for-bek-2211-and-similar-elisa-assays.html" target="_blank">BL-001-1250 ). For measurement of mature BDNF in CSF samples, please contact us at <a href="mailto:sales@biosensis.com">sales@biosensis.com . This ELISA kit has been tested in independent research laboratories and found to achieve highest reproducibility with intra- and inter-assay CVs as low as 1% and 5%, respectively (Polacchini et al., 2015). This ELISA kit consists of a pre-coated mouse monoclonal anti-mature BDNF capture antibody, a biotinylated anti-mature BDNF detection antibody and horseradish peroxidase (HRP)-conjugated streptavidin. The addition of a substrate (3,3',5,5'-tetramethylbenzidine, TMB) yields a coloured reaction product which is directly proportional to the concentration of mature BDNF present in samples and protein standards. A BDNF positive control (QC sample) is provided to assure consistent assay performance. This Mature BDNF ELISA kit employs a recombinant human mature BDNF standard approved by the World Health Organization (WHO, <a href="http://www.nibsc.org" target="_blank">www.nibsc.org ). The amino acid sequence of mature BDNF is identical for human, mouse, rat and a number of other species. This kit therefore is suitable to measure mature BDNF in all these species and uses the same antibodies and antigen. Extensive validation has demonstrated that the Mature BDNF Rapid TM ELISA shows only minimal cross-reactivity with proBDNF. Please refer to our <a href="http://www.biosensis.com/documents/enhancedinfo/Technical-Note-5-Mature-BDNF-Isoform-Detection-and-Quantification-by-ELISA.pdf" target="_blank">Technical Note #5 for further details on ELISA assay validation for BDNF isoform detection and quanification. This ELISA kit has not been tested for other applications. It has been configured for research use only and is not to be used for diagnostic or clinical procedures. For in-vitro diagnostic (IVD) applications in the European Economic Area (EEA), we refer to the CE Marked BDNF ELISA kit <a href="https://www.biosensis.com/brain-derived-neurotrophic-factor-mature-bdnf-mature-human-ce-marked-elisa-assay.html" target="_blank">(BEK-2211-CE) .
Background Info:
BDNF belongs to the neurotrophin family and regulates the survival and differentiation of neurons during development. The alterations in BDNF expression induced by various kinds of brain insult including stress, ischemia, seizure activity and hypoglycemia, may contribute to some pathologies such as depression, epilepsy, Alzheimer's, and Parkinson's disease. FUNCTION: Promotes the survival of neuronal populations that are all located either in the central nervous system or directly connected to it. Major regulator of synaptic transmission and plasticity at adult synapses in many regions of the CNS. The versatility of BDNF is emphasized by its contribution to a range of adaptive neuronal responses including long-term potentiation (LTP), long-term depression (LTD), certain forms of short-term synaptic plasticity, as well as homeostatic regulation of intrinsic neuronal excitability. SUBUNIT: Monomers and homodimers. Binds to NTRK2/TRKB. SUBCELLULAR LOCATION: Secreted protein. Post Translation Modification (PTM): The propeptide is N-glycosylated and glycosulfated. PTM: Converted into mature BDNF by plasmin (PLG) (By similarity). DISEASE: Defects in BDNF are a cause of congenital central hypoventilation syndrome (CCHS); also known as congenital failure of autonomic control or Ondine curse. CCHS is a rare disorder characterized by abnormal control of respiration in the absence of neuromuscular or lung disease, or an identifiable brain stem lesion. A deficiency in autonomic control of respiration results in inadequate or negligible ventilatory and arousal responses to hypercapnia and hypoxemia. CCHS is frequently complicated with neurocristopathies such as Hirschsprung disease that occurs in about 16% of CCHS cases. SIMILARITY: Belongs to the NGF-beta family.
Product Type:
ELISA Assay
Species Reactivity:
Human,Mouse,Rat
Immunogen:
Recombinant human BDNF with an N-terminal methionine residue, made in E. coli (WHO reference reagent)
Applications:
ELISA
Application Details:
ELISA. For the quantification of Brain-derived neurotrophic factor, mature (BDNF, mature) in Culture Supernatant, Serum, Plasma (Citrate), Plasma (EDTA), Cell Lysates, Tissue Homogenates, Human Milk, CSF. Please download the detailed product insert for complete instructions for the successful use of this ELISA. Use only as directed.
Typical limit of detection (LOD) for BDNF is less than 2 pg/mL, determined as 150% of the blank value.
Cross Reactivity:
No cross-reactivity is observed for nerve growth factor (NGF), neurotrophin-3 (NT-3), NT-4/5, glial cell line-derived neurotrophic factor (GDNF) and vascular endothelial growth factor (VEGF165) tested at 25 ng/mL in assay buffer. The reactivity of full-length proBDNF (0.125 ng/mL - 5 ng/mL) was determined in six independent assays using proBDNF proteins from four different sources (mammalian and bacterial, wild-type and mutated). The average cross-reactivity of proBDNF was found to be 5.3% +/- 0.5% in weight (w/v) concentration, or 12.1% +/- 1.2% in molar concentration (mean +/- SEM). Additional proBDNF cross-reactivity experiments were conducted as summarized in our <a class="newA" target="_blank" href="https://www.biosensis.com/documents/enhancedinfo/Technical-Note-5-Mature-BDNF-Isoform-Detection-and-Quantification-by-ELISA.pdf">Technical Note #5 .
The Biosensis CE Marked BDNF Rapid enzyme-linked immunosorbent assay (ELISA) Kit is a sandwich ELISA that allows the preferential quantification of mature BDNF in less than 3 hours. This kit consists of a pre-coated mouse monoclonal anti-BDNF capture antibody, a biotinylated anti-BDNF detection antibody and horseradish peroxidase (HRP)-conjugated streptavidin. The addition of a substrate (3,3',5,5'-tetramethylbenzidine, TMB) yields a colored reaction product which is directly proportional to the concentration of BDNF present in samples and protein standards. This BDNF ELISA kit employs a recombinant human BDNF standard approved by the World Health Organization (WHO, <a href="http://www.nibsc.org">www.nibsc.org ). This kit is suitable to measure mature BDNF in human serum and citrate-treated plasma samples only. The antibodies used in this ELISA kit bind epitopes within the mature domain of the protein and therefore recognize the mature as well as the pro-form of BDNF. However, cross-reactivity to the full-length proBDNF protein is low. This CE Marked BDNF Rapid ELISA [Cat. No. BEK-2211-CE] Kit is approved for in-vitro diagnostic (IVD) applications in the European Economic Area (EEA). It has been developed by Biosensis and is manufactured by Calbiotech Inc. (<a href="https://www.calbiotech.com">www.calbiotech.com ) for Biosensis. <font size="3">BEK-2211-CE is not approved for in-vitro diagnostic (IVD) applications in the United States. For research on human blood, customers MUST order the catalog number <a href="https://www.biosensis.com/brain-derived-neurotrophic-factor-mature-bdnf-mature-human-mouse-rat-rapidtm-elisa-assay.html" target="_blank">BEK-2211 . This research-use-only ELISA kit can be used for human and animal research purposes worldwide, and has been validated for a wider range of sample types and species.
Background Info:
BDNF belongs to the neurotrophin family and regulates the survival and differentiation of neurons during development. The alterations in BDNF expression induced by various kinds of brain insult including stress, ischemia, seizure activity and hypoglycemia, may contribute to some pathologies such as depression, epilepsy, Alzheimer's, and Parkinson's disease. FUNCTION: Promotes the survival of neuronal populations that are all located either in the central nervous system or directly connected to it. Major regulator of synaptic transmission and plasticity at adult synapses in many regions of the CNS. The versatility of BDNF is emphasized by its contribution to a range of adaptive neuronal responses including long-term potentiation (LTP), long-term depression (LTD), certain forms of short-term synaptic plasticity, as well as homeostatic regulation of intrinsic neuronal excitability. SUBUNIT: Monomers and homodimers. Binds to NTRK2/TRKB. SUBCELLULAR LOCATION: Secreted protein. Post Translation Modification (PTM): The propeptide is N-glycosylated and glycosulfated. PTM: Converted into mature BDNF by plasmin (PLG) (By similarity). DISEASE: Defects in BDNF are a cause of congenital central hypoventilation syndrome (CCHS); also known as congenital failure of autonomic control or Ondine curse. CCHS is a rare disorder characterized by abnormal control of respiration in the absence of neuromuscular or lung disease, or an identifiable brain stem lesion. A deficiency in autonomic control of respiration results in inadequate or negligible ventilatory and arousal responses to hypercapnia and hypoxemia. CCHS is frequently complicated with neurocristopathies such as Hirschsprung disease that occurs in about 16% of CCHS cases. SIMILARITY: Belongs to the NGF-beta family.
Product Type:
ELISA Assay
Species Reactivity:
Human
Immunogen:
Recombinant human BDNF with an N-terminal methionine residue, made in E. coli (WHO reference reagent)
Applications:
ELISA
Application Details:
ELISA. For the quantification of Brain-derived neurotrophic factor, mature (BDNF, mature) in Serum, Plasma (Citrate). BEK-2211-CE is expressly designed and tested only for use on human blood and plasma samples. Any other use is deemed "off label use" and thus the performance characteristics of the assay will have to be determined by the end user, and such results are not supported by Biosensis or CalBioTech at this time. Please download the detailed product insert for complete instructions for the successful use of this ELISA. Use only as directed.
See BEK-2211-1P-CE protocol insert for specific expiration dating of the kit and its components.
Use:
Approved for in-vitro diagnostic (IVD) applications in the European Economic Area (EEA). It has been developed by Biosensis and is manufactured by Calbiotech Inc. (www.calbiotech.com) for Biosensis.
This kit is not approved for in-vitro diagnostic (IVD) applications in the United States. For research on human blood, customers MUST order the catalog number BEK-2211.
Kit Components:
The ELISA kit box contains 96-well pre-coated strip plate(s), protein standards, detection reagents, wash and sample buffers, substrate buffer and detailed protocols.
Specificity:
Human BDNF when used as directed.
Storage:
2-8°C
Range:
7.8 pg/mL - 500 pg/mL
Sample Type:
Plasma (Citrate),Serum
Sensitivity:
Typical limit of detection (LOD) for BDNF is < 3 pg/mL determined by calculating the mean + 2x standard deviation of mean of blank (n=20).
The Biosensis Mature BDNF Rapid TM enzyme-linked immunosorbent assay (ELISA) Kit is a sandwich ELISA that allows the quantification of mature BDNF in less than 3 hours in cell culture supernatants, serum, plasma (citrate and EDTA), pig serum, cell lysates, brain extracts, human milk and Sheep CSF only if used as directed, with a simplified protocol and no loss of sensitivity or specificity. Please refer to the kit protocol for specific use instructions for each substrate application, in particular blood samples, human milk and CSF. Note that accurate quantification of BDNF in human milk requires a secretory IgA (sIgA) blocker which can be purchased separately (<a href="https://www.biosensis.com/secretory-iga-blocker-for-bek-2211-and-similar-elisa-assays.html" target="_blank">BL-001-1250 ). For measurement of mature BDNF in CSF samples, please contact us at <a href="mailto:sales@biosensis.com">sales@biosensis.com . This ELISA kit has been tested in independent research laboratories and found to achieve highest reproducibility with intra- and inter-assay CVs as low as 1% and 5%, respectively (Polacchini et al., 2015). This ELISA kit consists of a pre-coated mouse monoclonal anti-mature BDNF capture antibody, a biotinylated anti-mature BDNF detection antibody and horseradish peroxidase (HRP)-conjugated streptavidin. The addition of a substrate (3,3',5,5'-tetramethylbenzidine, TMB) yields a coloured reaction product which is directly proportional to the concentration of mature BDNF present in samples and protein standards. A BDNF positive control (QC sample) is provided to assure consistent assay performance. This Mature BDNF ELISA kit employs a recombinant human mature BDNF standard approved by the World Health Organization (WHO, <a href="http://www.nibsc.org" target="_blank">www.nibsc.org ). The amino acid sequence of mature BDNF is identical for human, mouse, rat and a number of other species. This kit therefore is suitable to measure mature BDNF in all these species and uses the same antibodies and antigen. Extensive validation has demonstrated that the Mature BDNF Rapid TM ELISA shows only minimal cross-reactivity with proBDNF. Please refer to our <a href="http://www.biosensis.com/documents/enhancedinfo/Technical-Note-5-Mature-BDNF-Isoform-Detection-and-Quantification-by-ELISA.pdf" target="_blank">Technical Note #5 for further details on ELISA assay validation for BDNF isoform detection and quanification. This ELISA kit has not been tested for other applications. It has been configured for research use only and is not to be used for diagnostic or clinical procedures. For in-vitro diagnostic (IVD) applications in the European Economic Area (EEA), we refer to the CE Marked BDNF ELISA kit <a href="https://www.biosensis.com/brain-derived-neurotrophic-factor-mature-bdnf-mature-human-ce-marked-elisa-assay.html" target="_blank">(BEK-2211-CE) .
Background Info:
BDNF belongs to the neurotrophin family and regulates the survival and differentiation of neurons during development. The alterations in BDNF expression induced by various kinds of brain insult including stress, ischemia, seizure activity and hypoglycemia, may contribute to some pathologies such as depression, epilepsy, Alzheimer's, and Parkinson's disease. FUNCTION: Promotes the survival of neuronal populations that are all located either in the central nervous system or directly connected to it. Major regulator of synaptic transmission and plasticity at adult synapses in many regions of the CNS. The versatility of BDNF is emphasized by its contribution to a range of adaptive neuronal responses including long-term potentiation (LTP), long-term depression (LTD), certain forms of short-term synaptic plasticity, as well as homeostatic regulation of intrinsic neuronal excitability. SUBUNIT: Monomers and homodimers. Binds to NTRK2/TRKB. SUBCELLULAR LOCATION: Secreted protein. Post Translation Modification (PTM): The propeptide is N-glycosylated and glycosulfated. PTM: Converted into mature BDNF by plasmin (PLG) (By similarity). DISEASE: Defects in BDNF are a cause of congenital central hypoventilation syndrome (CCHS); also known as congenital failure of autonomic control or Ondine curse. CCHS is a rare disorder characterized by abnormal control of respiration in the absence of neuromuscular or lung disease, or an identifiable brain stem lesion. A deficiency in autonomic control of respiration results in inadequate or negligible ventilatory and arousal responses to hypercapnia and hypoxemia. CCHS is frequently complicated with neurocristopathies such as Hirschsprung disease that occurs in about 16% of CCHS cases. SIMILARITY: Belongs to the NGF-beta family.
Product Type:
ELISA Assay
Species Reactivity:
Human,Mouse,Rat
Immunogen:
Recombinant human BDNF with an N-terminal methionine residue, made in E. coli (WHO reference reagent)
Applications:
ELISA
Application Details:
ELISA. For the quantification of Brain-derived neurotrophic factor, mature (BDNF, mature) in Culture Supernatant, Serum, Plasma (Citrate), Plasma (EDTA), Cell Lysates, Tissue Homogenates, Human Milk, CSF. Please download the detailed product insert for complete instructions for the successful use of this ELISA. Use only as directed.
Typical limit of detection (LOD) for BDNF is less than 2 pg/mL, determined as 150% of the blank value.
Cross Reactivity:
No cross-reactivity is observed for nerve growth factor (NGF), neurotrophin-3 (NT-3), NT-4/5, glial cell line-derived neurotrophic factor (GDNF) and vascular endothelial growth factor (VEGF165) tested at 25 ng/mL in assay buffer. The reactivity of full-length proBDNF (0.125 ng/mL - 5 ng/mL) was determined in six independent assays using proBDNF proteins from four different sources (mammalian and bacterial, wild-type and mutated). The average cross-reactivity of proBDNF was found to be 5.3% +/- 0.5% in weight (w/v) concentration, or 12.1% +/- 1.2% in molar concentration (mean +/- SEM). Additional proBDNF cross-reactivity experiments were conducted as summarized in our <a class="newA" target="_blank" href="http://www.biosensis.com/documents/enhancedinfo/Technical-Note-5-Mature-BDNF-Isoform-Detection-and-Quantification-by-ELISA.pdf">Technical Note #5 .
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