The light-harvesting protein Lhca3 is one of the four main and highly conserved types of chlorophyll a/b-binding proteins (Lhca1-4) of the light harvesting antenna (LHCI) of plant photosystem I. Lhca3 is imported as a precursor from the cytosol into the chloroplast. Upon integration in the thylakoid membrane Lhca3 forms a heterodimer (LHCI-680) with Lhca2 that associates with the PSI core close to PsaF and PsaK.A biochemical characterization of the plant LHCI antenna can be found in Klimmek et al. (2005) The structure of the higher plant light harvesting complex I: in vivo characterization and structural interdependence of the Lhca proteins. Biochemistry 44: 3065–3073.
Product Type:
Antibody
Antibody Type:
Polyclonal
Format:
Lyophilized
Storage Temp:
Store lyophilized/reconstituted at -20 °C; once reconstituted make aliquots to avoid repeated freeze-thaw cycles. Please remember to spin the tubes briefly prior to opening them to avoid any losses that might occur from material adhering to the cap or sides of the tube.
BSA-conjugated synthetic peptide derived from the Lhca3 protein sequence from Arabidopsis thaliana UniProt: Q9SY97, TAIR: At1g61520. This sequence is highly conserved in Lhcb3 proteins from angiosperms (monocots and dicots) and gymnosperms.
Protein is processed into mature form (Jansson 1999).
Application Details:
1 : 2000-1 : 5000 (WB)
Purity:
Total IgG. Protein G purified in PBS pH 7.4.
Reconstitution:
For reconstitution add 100 l of sterile water
Molecular Weight:
29 | 25 kDa for Arabidopsis thaliana (due to a transit peptide being cleaved off)
Not reactive in:
No confirmed exceptions from predicted reactivity are currently known
Selected references:
Sarvari et al. (2022). Qualitative and quantitative evaluation of thylakoid complexes separated by Blue Native PAGE. Plant Methods. 2022 Mar 3;18(1):23. doi: 10.1186/s13007-022-00858-2. PMID: 35241118; PMCID: PMC8895881.Zhu et al. (2020). A NAC transcription factor and its interaction protein hinder abscisic acid biosynthesis by synergistically repressing NCED5 in Citrus reticulata. J Exp Bot. 2020 Jun 22;71(12):3613-3625.doi: 10.1093/jxb/eraa118. Chen et al. (2019). Effects of Stripe Rust Infection on the Levels of Redox Balance and Photosynthetic Capacities in Wheat. Int J Mol Sci. 2019 Dec 31;21(1). pii: E268. doi: 10.3390/ijms21010268.Mao et al. (2018). Comparison on Photosynthesis and Antioxidant Defense Systems in Wheat with Different Ploidy Levels and Octoploid Triticale. Int J Mol Sci. 2018 Oct 2;19(10). pii: E3006. doi: 10.3390/ijms19103006.Li et al. (2018). Modulating plant growth-metabolism coordination for sustainable agriculture. Nature. 2018 Aug 15. doi: 10.1038/s41586-018-0415-5.
The light-harvesting protein Lhca2 is one of the four main and highly conserved types of chlorophyll a/b-binding proteins (Lhca1-4) of the light harvesting antenna (LHCI) of plant photosystem I. Lhca2 is imported as a precursor from the cytosol into the chloroplast. Upon integration in the thylakoid membrane Lhca2 forms a heterodimer (LHCI-680) with Lhca3 that associates with the PSI core close to PsaF and PsaK.A biochemical characterization of the plant LHCI antenna can be found in Klimmek et al. (2005) The structure of the higher plant light harvesting complex I: in vivo characterization and structural interdependence of the Lhca proteins. Biochemistry 44: 3065–3073.
Product Type:
Antibody
Antibody Type:
Polyclonal
Format:
Lyophilized
Storage Temp:
Store lyophilized/reconstituted at -20 °C; once reconstituted make aliquots to avoid repeated freeze-thaw cycles. Please remember to spin the tubes briefly prior to opening them to avoid any losses that might occur from material adhering to the cap or sides of the tube.
Host Animal:
Rabbit
Species Reactivity:
Arabidopsis thaliana, Arachis hypogaea, Bryopsis corticulans, Colobanthus quitensis Kunt Bartl, Chlamydomonas reinhardti (one Lhca-type), Citrus reticulata, Chromochloris zofingiensis, Cytisus cantabricus (Wilk.) Rchb. F., Hieracium pilosella L, Hordeum vulgare, Lasallia hispanica, Nicotiana tabacum, Oryza sativa, Pisum sativum, Phaseolus vulgaris, Physcomitrium patens, Pinus banksiana (the higher of the two bands detected at 24 and 30 kDa is not considered to be specific to any Lhc protein), Posidonia oceanica, Prasinoderma sp., Pyramimonas sp. Spinacia oleracea, Syntrichia muralis (Hedw.) Raab, Triticum aestivum, Triticale, Zea mays
Expected Species:
Dicots, Gymnosperms
Immunogen:
BSA-conjugated synthetic peptide derived from the Lhca2 protein of Arabidopsis thaliana UniProt: Q9SYW8, Q8LCQ4, TAIR: At3g61470. This sequence is highly conserved in Lhca2 proteins of angiosperms (monocots and dicots) and gymnosperms as well as in At1g19150. This gene codes for the very low expressed Lhca6 protein which also has been denoted as Lhca2*1.
No confirmed exceptions from predicted reactivity are currently known
Selected references:
Sarvari et al. (2022). Qualitative and quantitative evaluation of thylakoid complexes separated by Blue Native PAGE. Plant Methods. 2022 Mar 3;18(1):23. doi: 10.1186/s13007-022-00858-2. PMID: 35241118; PMCID: PMC8895881.Fukura et al. (2021) Enrichment of chlorophyll catabolic enzymes in grana margins and their cooperation in catabolic reactions. J Plant Physiol. 2021 Nov;266:153535. doi: 10.1016/j.jplph.2021.153535. Epub 2021 Sep 25. PMID: 34607178.Zhu et al. (2020). A NAC transcription factor and its interaction protein hinder abscisic acid biosynthesis by synergistically repressing NCED5 in Citrus reticulata. J Exp Bot. 2020 Jun 22;71(12):3613-3625.doi: 10.1093/jxb/eraa118. Their et al. (2020). VIPP2 interacts with VIPP1 and HSP22E/F at chloroplast membranes and modulates a retrograde signal for HSP22E/F gene expression. Plant Cell Environ. 2020 Jan 29. doi: 10.1111/pce.13732.Vojta and Fulgosi (2019). Topology of TROL protein in thylakoid membranes of Arabidopsis thaliana. Physiol Plant. 2019 Jan 20. doi: 10.1111/ppl.12927.
Special application note:
Antibody format is a total IgG fraction, which means that it is a pool of polyclonal antibodies obtained by purification of serum on Protein G, not on a specific antigen column.
The light-harvesting protein Lhca1 is one of the four main and highly conserved types of chlorophyll a/b-binding proteins (Lhca1-4) of the light harvesting antenna (LHCI) of plant photosystem I. Lhca1 is imported as a precursor from the cytosol into the chloroplast. Upon insertion into the thylakoid membrane Lhca1 forms a heterodimer (LHCI-730) with Lhca4 that associates with the PSI core close to PsaG and PsaF.A biochemical characterization of the plant LHCI antenna can be found in Klimmek et al. (2005) The structure of the higher plant light harvesting complex I: in vivo characterization and structural interdependence of the Lhca proteins. Biochemistry 44: 3065–3073
Product Type:
Antibody
Antibody Type:
Polyclonal
Format:
Lyophilized
Storage Temp:
Store lyophilized/reconstituted at -20 °C; once reconstituted make aliquots to avoid repeated freeze-thaw cycles. Please remember to spin the tubes briefly prior to opening them to avoid any losses that might occur from material adhering to the cap or sides of the tube.
BSA-conjugated synthetic peptide derived from the Lhca1 protein of Arabidopsis thaliana UniProt: Q01667, TAIR: At3g54890. This sequence is highly conserved in Lhca1 proteins of angiosperms (monocots and dicots) and gymnosperms.
Protein is processed into mature form (Jansson 1999).
Application Details:
1 : 2000-1 : 5000 (WB)
Purity:
Total IgG. Protein G purified in PBS pH 7.4.
Reconstitution:
For reconstitution add 100 l of sterile water
Molecular Weight:
25.99 | 22 kDa for Arabidopsis thaliana
Not reactive in:
No confirmed exceptions from predicted reactivity are currently known
Selected references:
Harchouni et al. (2022) Guanosine tetraphosphate (ppGpp) accumulation inhibits chloroplast gene expression and promotes super grana formation in the moss Physcomitrium (Physcomitrella) patens. New Phytol. 2022;236(1):86-98. doi:10.1111/nph.18320Espinoza-Corral & Lundquist. (2022) The plastoglobule-localized protein AtABC1K6 is a Mn2+-dependent kinase necessary for timely transition to reproductive growth. J Biol Chem. 2022 Apr;298(4):101762. doi: 10.1016/j.jbc.2022.101762. Epub 2022 Feb 22. PMID: 35202657; PMCID: PMC8956952.Sarvari et al. (2022). Qualitative and quantitative evaluation of thylakoid complexes separated by Blue Native PAGE. Plant Methods. 2022 Mar 3;18(1):23. doi: 10.1186/s13007-022-00858-2. PMID: 35241118; PMCID: PMC8895881.Xiong et al. (2022) a chloroplast nucleoid protein of bacterial origin linking chloroplast transcriptional and translational machineries, is required for proper chloroplast gene expression in Arabidopsis thaliana. Nucleic Acids Res. 2022 Jun 23;50(12):6715-34. doi: 10.1093/nar/gkac501. Epub ahead of print. PMID: 35736138; PMCID: PMC9262611.Kumari et al. (2021) In-depth assembly of organ and development dissected Picrorhiza kurroa proteome map using mass spectrometry. BMC Plant Biol. 2021 Dec 22;21(1):604. doi: 10.1186/s12870-021-03394-8. PMID: 34937558; PMCID: PMC8693493.
Special application note:
Antibody format is a total IgG fraction, which means that it is a pool of polyclonal antibodies obtained by purification of serum on Protein G, not on a specific antigen column.This product can be sold containing ProClin if requested.
The major light-harvesting antenna complex II (LHCII) in photosynthetic eukaryotes is located in the thylakoid membrane of the chloroplast. It is a heterotrimeric complex formed by up to 3 different individual subtypes of chlorophyll a/b-binding proteins: Lhcb1, Lhcb2, and Lhcb3. Lhcb1 is the most abundant chlorophyll a/b-binding protein in eukaryotic phototrophs and often is coded by several nuclear genes.A molecular characterisation of the LHCII proteins can be found in Caffarri et al. (2004) A Look within LHCII: Differential Analysis of the Lhcb1−3 Complexes Building the Major Trimeric Antenna Complex of Higher-Plant Photosynthesis. Biochemistry 43 (29): 9467–9476
Product Type:
Antibody
Antibody Type:
Polyclonal
Format:
Lyophilized
Storage Temp:
Store lyophilized/reconstituted at -20 °C; once reconstituted make aliquots to avoid repeated freeze-thaw cycles. Please remember to spin the tubes briefly prior to opening them to avoid any losses that might occur from material adhering to the cap or sides of the tube.
Lhcb1 Protein is processed into mature form (Jansson 1999).This product can be sold containing ProClin if requested
Application Details:
1 : 2000 (WB)
Purity:
Immunogen affinity purified serum in PBS pH 7.4.
Reconstitution:
For reconstitution add 50 l of sterile water
Molecular Weight:
28 | 25 kDa for Arabidopsis thaliana
Not reactive in:
Picea abies
Selected references:
Harchouni et al. (2022) Guanosine tetraphosphate (ppGpp) accumulation inhibits chloroplast gene expression and promotes super grana formation in the moss Physcomitrium (Physcomitrella) patens. New Phytol. 2022;236(1):86-98. doi:10.1111/nph.18320Gao Y et al. (2022) Chloroplast translational regulation uncovers nonessential photosynthesis genes as key players in plant cold acclimation. Plant Cell. 2022 Apr 26;34(5):2056-2079. doi: 10.1093/plcell/koac056. PMID: 35171295; PMCID: PMC9048916.Ivanov et al. (2022) The decreased PG content of pgp1 inhibits PSI photochemistry and limits reaction center and light-harvesting polypeptide accumulation in response to cold acclimation. Planta 255, 36 (2022). https://doi.org/10.1007/s00425-022-03819-0Medina-Puche et al (2021). Protocol for evaluating protein relocalization from the plasma membrane to chloroplasts. STAR Protoc. 2021 Sep 14;2(4):100816. doi: 10.1016/j.xpro.2021.100816. PMID: 34585156; PMCID: PMC8450296.Chen, Liu & Liu (2021) Loss-Function of EGY1 Results in Photosynthesis Damage through Reducing Stability of Photosystem II in Arabidopsis thaliana. Russ J Plant Physiol (2021). https://doi.org/10.1134/S1021443721060029
The major light-harvesting antenna complex II (LHCII) in photosynthetic eukaryotes is located in the thylakoid membrane of the chloroplast. It is a heterotrimeric complex formed by up to 3 different individual subtypes of chlorophyll a/b-binding proteins: Lhcb1, Lhcb2, and Lhcb3. Lhcb2 is often coded by several nuclear genes and is found together with Lhcb1 within the mobile LHCII trimers involved in state1-state2 transition.A molecular characterisation of the LHCII proteins can be found in Caffarri et al. (2004) A Look within LHCII: Differential Analysis of the Lhcb1−3 Complexes Building the Major Trimeric Antenna Complex of Higher-Plant Photosynthesis. Biochemistry 43 (29): 9467–9476.
Product Type:
Antibody
Antibody Type:
Polyclonal
Format:
Lyophilized
Storage Temp:
Store lyophilized/reconstituted at -20 °C; once reconstituted make aliquots to avoid repeated freeze-thaw cycles. Please remember to spin the tubes briefly prior to opening them to avoid any losses that might occur from material adhering to the cap or sides of the tube.
BSA-conjugated synthetic peptide derived from a highly conserved sequence of Lhcb2 proteins from angiosperms (monocots and dicots) and gymnosperms, including Arabidopsis thaliana Lhcb2.1 UniProt: Q9SHR7, TAIR: AT2G05100, Lhcb2.2 UniProt: Q9S7J7, TAIR:AT2G05070, Lhcb2.3 UniProt:Q9XF87, TAIR:AT3G27690
Applications:
Immunoprecipitation (IP), ImmunoGold (IG), Western blot (WB)
Immunoprecipitation has been done using Immunoprecipitation kit from Roche, Cat.No. 11 719 386 001.Protein is processed into mature form (Jansson 1999).
Application Details:
5 l of antibody solution (IP), 1: 100 (IG), 1: 500 - 1 : 5000 (WB)
Purity:
Immunogen affinity purified serum in PBS pH 7.4.
Reconstitution:
For reconstitution add 50 l of sterile water
Molecular Weight:
28.6 | 25 kDa for Arabidopsis thaliana
Not reactive in:
No confirmed exceptions from predicted reactivity are currently known
Selected references:
Singh, Muthamilarasan, Prasad (2022). SiHSFA2e regulated expression of SisHSP21.9 maintains chloroplast proteome integrity under high temperature stress. Cell Mol Life Sci. 2022;79(11):580. Published 2022 Nov 3. doi:10.1007/s00018-022-04611-10Cazzaniga et al. (2022). Engineering astaxanthin accumulation reduces photoinhibition and increases biomass productivity under high light in Chlamydomonas reinhardtii. Biotechnol Biofuels Bioprod. 2022 Jul 11;15(1):77. doi: 10.1186/s13068-022-02173-3. PMID: 35820961; PMCID: PMC9277849.Bru, Steen, Park, et al. (2022) The major trimeric antenna complexes serve as a site for qH-energy dissipation in plants. J Biol Chem. 2022;298(11):102519. doi:10.1016/j.jbc.2022.102521Ivanov et al. (2022) The decreased PG content of pgp1 inhibits PSI photochemistry and limits reaction center and light-harvesting polypeptide accumulation in response to cold acclimation. Planta 255, 36 (2022). https://doi.org/10.1007/s00425-022-03819-0Bychkov et al. (2022) The role of PAP4/FSD3 and PAP9/FSD2 in heat stress responses of chloroplast genes. Plant Sci. 2022 Sep;322:111359. doi: 10.1016/j.plantsci.2022.111359. Epub 2022 Jun 20. PMID: 35738478.
The major light-harvesting antenna complex II (LHCII) in photsynthetic eukaryotes is located in the thylakoid membrane of the chloroplast. It is a heterotrimeric complex formed by up to 3 different individual subtypes of chlorophyll a/b-binding proteins: Lhcb1, Lhcb2, and Lhcb3. While Lhcb1 and Lhcb2 are quite similar and regularily present in multiple gene-copies, the Lhcb3 protein differs in pigment-composition and molecular size and often is coded by only a single gene. Lhcb3 seems not to be present in the mobile LHCII trimers involved in state 1-state 2 transitions. A molecular characterisation of the LHCII proteins can be found in Caffarri et al. (2004) A Look within LHCII: Differential Analysis of the Lhcb1−3 Complexes Building the Major Trimeric Antenna Complex of Higher-Plant Photosynthesis. Biochemistry 43 (29): 9467–9476.
Product Type:
Antibody
Antibody Type:
Polyclonal
Format:
Lyophilized
Storage Temp:
Store lyophilized/reconstituted at -20 °C; once reconstituted make aliquots to avoid repeated freeze-thaw cycles. Please remember to spin the tubes briefly prior to opening them to avoid any losses that might occur from material adhering to the cap or sides of the tube.
Cucumis melo, Dicots, Gymnosperms, MossesSpecies of your interest not listed? Contact us
Immunogen:
BSA-conjugated synthetic peptide derived from a highly conserved sequence of Lhcb3 proteins from angiosperms (monocots and dicots) and gymnosperms, including Arabidopsis thaliana Lhcb3 UniProt: Q9S7M0,TAIR:AT5G54270. This sequence is highly conserved even in Ginko biloba and one of the major LHCII-forms of Physcomitrella patens.
Protein is processed into mature form (Jansson 1999).
Application Details:
1 : 2000 (WB)
Purity:
Total IgG. Protein G purified in PBS pH 7.4.
Reconstitution:
For reconstitution add 50 l of sterile water
Molecular Weight:
28.7 | 26 kDa for Arabidopsis thaliana
Not reactive in:
No confirmed exceptions from predicted reactivity are currently known
Selected references:
von Bismarck et al. (2021) Light acclimation interacts with thylakoid ion transport to govern the dynamics of photosynthesis. Research Square; 2021. DOI: 10.21203/rs.3.rs-948381/v1.Wu et al. (2021). Formation of light-harvesting complex (LHC) II aggregates from LHCII-PSI-LHCI complexes in rice plants under high light. J Exp Bot. 2021 May 3:erab188. doi: 10.1093/jxb/erab188. Epub ahead of print. PMID: 33939808.Wojtowicz et al. (2020). Compensation Mechanism of the Photosynthetic Apparatus in Arabidopsis thaliana ch1 Mutants. Int J Mol Sci. 2020 Dec 28;22(1):221. doi: 10.3390/ijms22010221. PMID: 33379339; PMCID: PMC7794896.Koh et al. (2019). Heterologous synthesis of chlorophyll b in Nannochloropsis salina enhances growth and lipid production by increasing photosynthetic efficiency. Biotechnol Biofuels. 2019 May 14;12:122. doi: 10.1186/s13068-019-1462-3. eCollection 2019.Furukawa et al. (2019). Formation of a PSI–PSII megacomplex containing LHCSR and PsbS in the moss Physcomitrella patens. J Plant Res https://doi.org/10.1007/s10265-019-01138-2.
Special application note:
Antibody format is a total IgG fraction, which means that it is a pool of polyclonal antibodies obtained by purification of serum on Protein G, not on a specific antigen column.
ClpC is a chloroplastic protein of the Hsp100 family. It is believed to function as a housekeeping enzyme, both in its capacity as an independent molecular chaperone and as the regulatory component of the Clp protease.
Product Type:
Antibody
Antibody Type:
Polyclonal
Format:
Lyophilized
Storage Temp:
Store lyophilized/reconstituted at -20 °C; once reconstituted make aliquots to avoid repeated freeze-thaw cycles. Please remember to spin the tubes briefly prior to opening them to avoid any losses that might occur from material adhering to the cap or sides of the tube.
1 : 1000 (IHC), 1 : 5000 on 10 g of total protein, (WB)
Purity:
Serum
Reconstitution:
For reconstitution add 100 µl of sterile water
Molecular Weight:
92 | 87 kDa
Not reactive in:
Different strains of Mycobacterium smegmatis
Selected references:
Jiang et al. (2020). Plastid chaperone HSP90C guides precursor proteins to the SEC translocase for thylakoid transport. J Exp Bot. 2020 Aug 27;eraa399.doi: 10.1093/jxb/eraa399. Lee et al. (2018). Prolines in Transit Peptides Are Crucial for Efficient Preprotein Translocation into Chloroplasts. Plant Physiol. 2018 Jan;176(1):663-677. doi: 10.1104/pp.17.01553. Epub 2017 Nov 20.Hu et al. (2015). Site-specific Nitrosoproteomic Identification of Endogenously S-Nitrosylated Proteins in Arabidopsis. Plant Physiol. 2015 Feb 19. pii: pp.00026.2015.Rosano et al. (2011). Insights into the Clp/HSP100 chaperone system from chloroplasts of Arabidopsis thaliana. J Biol Chem. Aug 26;286(34):29671-80. (Western blot, Arabidopsis thaliana)Karradt et al. (2008) NblA, a Key Protein of Phycobilisome Degradation, Interacts with ClpC, a HSP100 Chaperone Partner of a Cyanobacterial Clp Protease. J Biol Chem 283: 32394-32403.
Special application note:
Anti-ClpC antibodies will also recognized Arabidopsis thaliana isoform ClpC1 (At5g50920) and ClpC2 (At3g48870).
Store at -20?C for one year from date of receipt. After reconstitution, at 4?C for one month. It can also be aliquotted and stored frozen at -20?C for six months. Avoid repeated freeze-thaw cycles.Add 0.2ml of distilled water will yield a concentration of 500ug/ml. Background: COP9 constitutive photomorphogenic homolog subunit 5 (Arabidopsis), also known as COPS5 or JAB1, is a gene conserved from humans to Saccharomyces cerevisiae. It is a member of the MOV34 family. COPS5 is mapped to 8q13.1. The protein encoded by this gene is one of the eight subunits of COP9 signalosome, a highly conserved protein complex that functions as an important regulator in multiple signaling pathways. COPS5 can interact with the cytoplasmic domain of the beta-2 subunit of the alpha-L/beta-2 integrin LFA1, and it is the only protein demonstrated to interact with MIF. COPS5, VHL, and TRC8 proteins appear to be linked both physically and functionally, and all 3 may participate in the development of kidney cancer. In addition to that, COPS5 is an essential cofactor for the apoptotic function of E2F1. Subcellular Localization: Tissue Specificity:
The microtubules are intracellular dynamic polymers made up of evolutionarily conserved polymorphic alpha/beta-tubulin heterodimers and a large number of microtubule-associated proteins (MAPs). The microtubules consist of 13 protofilaments and have an outer diameter 25 nm. Microtubules have their intrinsic polarity; highly dynamic plus ends and less dynamic minus ends. Microtubules are required for vital processes in eukaryotic cells including mitosis, meiosis, maintenance of cell shape and intracellular transport. Microtubules are also necessary for movement of cells by means of flagella and cilia. In mammalian tissue culture cells microtubules have their minus ends anchored in microtubule organizing centers (MTOCs). The GTP (guanosintriphosphate) molecule is an essential for tubulin heterodimer to associate with other heterodimers to form microtubule. In vivo, microtubule dynamics vary considerably. Microtubule polymerization is reversible and a populations of microtubules in cells are on their minus ends either growing or shortening – this phenomenon is called dynamic instability of microtubules. On a practical level, microtubules can easily be stabilized by the addition of non-hydrolysable analogues of GTP (eg. GMPPCP) or more commonly by anti-cancer drugs such as Taxol. Taxol stabilizes microtubules at room temperature for many hours. Using limited proteolysis by enzymes both tubulin subunits can be divided into N-terminal and C-terminal structural domains.
The beta-tubulin (relative molecular weight around 50 kDa) is counterpart of alpha-tubulin in tubulin heterodimer. It is coded by multiple tubulin genes and it is also posttranslationally modified. Heterogeneity of subunit is concentrated in C-terminal structural domain.
Antibody Isotype:
IgM
Monosan Range:
MONOSAN
Clone:
TU-06
Concentration:
1 mg/ml
Storage buffer:
Tris buffered saline (TBS) solution with 15 mM sodium azide
The antibody TU-01 recognizes a defined epitope (aa 65-97) on N-terminal structural domain of alpha-tubulin. The microtubules are intracellular dynamic polymers made up of evolutionarily conserved polymorphic alpha/beta-tubulin heterodimers and a large number of microtubule-associated proteins (MAPs). The microtubules consist of 13 protofilaments and have an outer diameter 25 nm. Microtubules have their intrinsic polarity; highly dynamic plus ends and less dynamic minus ends. Microtubules are required for vital processes in eukaryotic cells including mitosis, meiosis, maintenance of cell shape and intracellular transport. Microtubules are also necessary for movement of cells by means of flagella and cilia. In mammalian tissue culture cells microtubules have their minus ends anchored in microtubule organizing centers (MTOCs). The GTP (guanosintriphosphate) molecule is an essential for tubulin heterodimer to associate with other heterodimers to form microtubule. In vivo, microtubule dynamics vary considerably. Microtubule polymerization is reversible and a populations of microtubules in cells are on their minus ends either growing or shortening – this phenomenon is called dynamic instability of microtubules. On a practical level, microtubules can easily be stabilized by the addition of non-hydrolysable analogues of GTP (eg. GMPPCP) or more commonly by anti-cancer drugs such as Taxol. Taxol stabilizes microtubules at room temperature for many hours. Using limited proteolysis by enzymes both tubulin subunits can be divided into N-terminal and C-terminal structural domains. The alpha-tubulin (relative molecular weight around 50 kDa) is globular protein that exists in cells as part of soluble alpha/beta-tubulin dimer or it is polymerized into microtubules. In different species it is coded by multiple tubulin genes that form tubulin classes (in human 6 genes). Expressed tubulin genes are named tubulin isotypes. Some of the tubulin isotypes are expressed ubiquitously, while some have more restricted tissue expression. Alpha-tubulin is also subject of numerous post-translational modifications. Tubulin isotypes and their posttranslational modifications are responsible for multiple tubulin charge variants - tubulin isoforms. Heterogeneity of alpha-tubulin is concentrated in C-terminal structural domain.
Antibody Isotype:
IgG1
Monosan Range:
MONOSAN
Clone:
TU-01
Concentration:
1 mg/ml
Storage buffer:
Phosphate buffered saline (PBS) solution with 15 mM sodium azide
Storage:
2-8°C
References 1:
Viklicky V, et al. Cell Biol Int Rep. 1982 Aug;6(8):725-31
References 2:
Grimm M, et al. Biochim Biophys Acta. 1987 Jul 24;914(1):83-8.
References 3:
Linhartova I, et al. Biochem J. 1992 Dec 15;288 ( Pt 3):919-24.
References 4:
Draber P, et al. Eur J Cell Biol. 1986 Jun;41(1):82-8
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