ID:TBA1B_HUMAN DESCRIPTION: RecName: Full=Tubulin alpha-1B chain; AltName: Full=Alpha-tubulin ubiquitous; AltName: Full=Tubulin K-alpha-1; AltName: Full=Tubulin alpha-ubiquitous chain; FUNCTION: Tubulin is the major constituent of microtubules. It binds two moles of GTP, one at an exchangeable site on the beta chain and one at a non-exchangeable site on the alpha-chain. SUBUNIT: Dimer of alpha and beta chains. SUBCELLULAR LOCATION: Cytoplasm, cytoskeleton. PTM: Undergoes a tyrosination/detyrosination cycle, the cyclic removal and re-addition of a C-terminal tyrosine residue by the enzymes tubulin tyrosine carboxypeptidase (TTCP) and tubulin tyrosine ligase (TTL), respectively (By similarity). PTM: Some glutamate residues at the C-terminus are polyglutamylated. This modification occurs exclusively on glutamate residues and results in polyglutamate chains on the gamma-carboxyl group. Also monoglycylated but not polyglycylated due to the absence of functional TTLL10 in human. Monoglycylation is mainly limited to tubulin incorporated into axonemes (cilia and flagella) whereas glutamylation is prevalent in neuronal cells, centrioles, axonemes, and the mitotic spindle. Both modifications can coexist on the same protein on adjacent residues, and lowering glycylation levels increases polyglutamylation, and reciprocally. The precise function of such modifications is still unclear but they regulate the assembly and dynamics of axonemal microtubules (Probable). PTM: Acetylation of alpha-tubulins at Lys-40 stabilizes microtubules and affects affinity and processivity of microtubule motors. This modification has a role in multiple cellular functions, ranging from cell motility, cell cycle progression or cell differentiation to intracellular trafficking and signaling (By similarity). SIMILARITY: Belongs to the tubulin family.
The RNAfold program from the Vienna RNA Package is used to perform the secondary structure predictions and folding calculations. The estimated folding energy is in kcal/mol. The more negative the energy, the more secondary structure the RNA is likely to have.
ModBase Predicted Comparative 3D Structure on P68363
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Orthologous Genes in Other Species
Orthologies between human, mouse, and rat are computed by taking the best BLASTP hit, and filtering out non-syntenic hits. For more distant species reciprocal-best BLASTP hits are used. Note that the absence of an ortholog in the table below may reflect incomplete annotations in the other species rather than a true absence of the orthologous gene.
BC021063 - Homo sapiens cDNA clone IMAGE:3506521, **** WARNING: chimeric clone ****. BC015883 - Homo sapiens tubulin, alpha 1b, mRNA (cDNA clone MGC:10192 IMAGE:3909374), complete cds. BC017004 - Homo sapiens tubulin, alpha 1b, mRNA (cDNA clone MGC:22108 IMAGE:4430457), complete cds. BC008659 - Homo sapiens tubulin, alpha 1b, mRNA (cDNA clone MGC:9918 IMAGE:3871729), complete cds. BC001128 - Homo sapiens tubulin, alpha 1b, mRNA (cDNA clone MGC:2457 IMAGE:2964447), complete cds. BC009512 - Homo sapiens tubulin, alpha 1b, mRNA (cDNA clone MGC:4753 IMAGE:3537301), complete cds. BC009314 - Homo sapiens tubulin, alpha 1b, mRNA (cDNA clone MGC:16616 IMAGE:4111591), complete cds. BC006379 - Homo sapiens tubulin, alpha 1b, mRNA (cDNA clone MGC:12832 IMAGE:4100566), complete cds. BC006481 - Homo sapiens tubulin, alpha 1b, mRNA (cDNA clone MGC:4387 IMAGE:2905305), complete cds. BC010494 - Homo sapiens tubulin, alpha 1b, mRNA (cDNA clone MGC:17433 IMAGE:3445903), complete cds. BC018948 - Homo sapiens tubulin, alpha 1b, mRNA (cDNA clone IMAGE:4130515). BC021564 - Homo sapiens tubulin, alpha 1b, mRNA (cDNA clone MGC:31891 IMAGE:4579604), complete cds. BC009509 - Homo sapiens tubulin, alpha 1b, mRNA (cDNA clone MGC:4689 IMAGE:3533174), complete cds. BC009513 - Homo sapiens tubulin, alpha 1b, mRNA (cDNA clone MGC:4760 IMAGE:3537827), complete cds. BC000696 - Homo sapiens tubulin, alpha 1b, mRNA (cDNA clone MGC:2215 IMAGE:3349131), complete cds. BC071904 - Homo sapiens tubulin, alpha 1b, mRNA (cDNA clone MGC:88583 IMAGE:6089096), complete cds. BC080592 - Homo sapiens tubulin, alpha 4a, mRNA (cDNA clone IMAGE:4541944), **** WARNING: chimeric clone ****. AK026516 - Homo sapiens cDNA: FLJ22863 fis, clone KAT01983, highly similar to HUMTUBAK human alpha-tubulin mRNA. AK026632 - Homo sapiens cDNA: FLJ22979 fis, clone KAT11379, highly similar to HUMTUBAK human alpha-tubulin mRNA. DQ400107 - Homo sapiens alpha tubulin (K-ALPHA-1) mRNA, complete cds. K00558 - human alpha-tubulin mRNA, complete cds. Z36832 - H.sapiens (xs31) mRNA, 835bp. AK293337 - Homo sapiens cDNA FLJ60097 complete cds, highly similar to Tubulin alpha-ubiquitous chain. AK056693 - Homo sapiens cDNA FLJ32131 fis, clone PEBLM2000267, highly similar to Tubulin alpha-ubiquitous chain. BC011572 - Homo sapiens tubulin, alpha 1b, mRNA (cDNA clone MGC:20231 IMAGE:4561240), complete cds. AK057773 - Homo sapiens cDNA FLJ25044 fis, clone CBL03486, highly similar to TUBULIN ALPHA-1 CHAIN. AK094717 - Homo sapiens cDNA FLJ37398 fis, clone BRAMY2027467, highly similar to Tubulin alpha-ubiquitous chain. AK098357 - Homo sapiens cDNA FLJ25491 fis, clone CBR00773, highly similar to TUBULIN ALPHA-1 CHAIN. AK098635 - Homo sapiens cDNA FLJ25769 fis, clone TST06404, highly similar to TUBULIN ALPHA-1 CHAIN. AK098771 - Homo sapiens cDNA FLJ25905 fis, clone CBR04587, highly similar to TUBULIN ALPHA-1 CHAIN. AK289354 - Homo sapiens cDNA FLJ78587 complete cds. BC030820 - Homo sapiens tubulin, alpha 1b, mRNA (cDNA clone MGC:23826 IMAGE:4277263), complete cds. JD295010 - Sequence 276034 from Patent EP1572962. JD502773 - Sequence 483797 from Patent EP1572962. JD560601 - Sequence 541625 from Patent EP1572962. JD251724 - Sequence 232748 from Patent EP1572962. AF081484 - Homo sapiens alpha-tubulin isoform 1 mRNA, complete cds. DQ891498 - Synthetic construct clone IMAGE:100004128; FLH177498.01X; RZPDo839A11126D alpha tubulin (K-ALPHA-1) gene, encodes complete protein. KJ893019 - Synthetic construct Homo sapiens clone ccsbBroadEn_02413 TUBA1B gene, encodes complete protein. KJ906036 - Synthetic construct Homo sapiens clone ccsbBroadEn_15706 TUBA1B gene, encodes complete protein. KJ906037 - Synthetic construct Homo sapiens clone ccsbBroadEn_15707 TUBA1B gene, encodes complete protein. DQ894689 - Synthetic construct Homo sapiens clone IMAGE:100009149; FLH177494.01L; RZPDo839A11125D alpha tubulin (K-ALPHA-1) gene, encodes complete protein. KJ906038 - Synthetic construct Homo sapiens clone ccsbBroadEn_15708 TUBA1B gene, encodes complete protein. AB464324 - Synthetic construct DNA, clone: pF1KB8265, Homo sapiens TUBA1B gene for tubulin, alpha 1b, without stop codon, in Flexi system. JD440596 - Sequence 421620 from Patent EP1572962. JD220127 - Sequence 201151 from Patent EP1572962. JD545462 - Sequence 526486 from Patent EP1572962. JD060811 - Sequence 41835 from Patent EP1572962. CU692366 - Synthetic construct Homo sapiens gateway clone IMAGE:100018133 5' read TUBA1B mRNA. JD026159 - Sequence 7183 from Patent EP1572962. JD026858 - Sequence 7882 from Patent EP1572962. JD317441 - Sequence 298465 from Patent EP1572962. JD036090 - Sequence 17114 from Patent EP1572962. CU677793 - Synthetic construct Homo sapiens gateway clone IMAGE:100017297 5' read TUBA1B mRNA. JD024118 - Sequence 5142 from Patent EP1572962. JD024119 - Sequence 5143 from Patent EP1572962. JD027868 - Sequence 8892 from Patent EP1572962. JD033115 - Sequence 14139 from Patent EP1572962. CU687192 - Synthetic construct Homo sapiens gateway clone IMAGE:100023159 5' read TUBA1B mRNA. JD025802 - Sequence 6826 from Patent EP1572962. JD029721 - Sequence 10745 from Patent EP1572962. CU679019 - Synthetic construct Homo sapiens gateway clone IMAGE:100017298 5' read TUBA1B mRNA. JD029285 - Sequence 10309 from Patent EP1572962. JD027061 - Sequence 8085 from Patent EP1572962. JD035518 - Sequence 16542 from Patent EP1572962. JD024485 - Sequence 5509 from Patent EP1572962. DQ589802 - Homo sapiens piRNA piR-56914, complete sequence. JD020410 - Sequence 1434 from Patent EP1572962. AY533484 - Homo sapiens tubulin alpha-1 (TUBA1) mRNA, partial cds. JD032220 - Sequence 13244 from Patent EP1572962. S62639 - alpha-tubulin {EST} [human, mRNA Partial, 337 nt]. JD020374 - Sequence 1398 from Patent EP1572962. JD035670 - Sequence 16694 from Patent EP1572962. DL490632 - Novel nucleic acids. JD025908 - Sequence 6932 from Patent EP1572962. JD023766 - Sequence 4790 from Patent EP1572962. JD034886 - Sequence 15910 from Patent EP1572962.
Biochemical and Signaling Pathways
Reactome (by CSHL, EBI, and GO)
Protein P68363 (Reactome details) participates in the following event(s):
R-HSA-389954 Hydrolysis of ATP and release of tubulin folding intermediate from CCT/TriC R-HSA-389961 ADP is exchanged for ATP in the (ADP:CCT/TriC):tubulin complex R-HSA-389972 alpha-tubulin:GTP + Cofactor B -> alpha-tubulin:GTP: Cofactor B R-HSA-389978 alpha-tubulin:GTP + Cofactor E -> alpha-tubulin:GTP:Cofactor E R-HSA-389974 Beta-tubulin:GTP:Cofactor D:alpha-tubulin:GTP:Cofactor E:Cofactor C-> Beta-tubulin:GDP :alpha-tubulin:GTP heterodimer +Cofactor E+ Cofactor D+ Cofactor C+ Pi R-HSA-8955712 TTCP hydrolyzes the terminal L-Tyr residue from alpha-tubulin R-HSA-8955706 TTL ligates L-Tyr to the carboxy terminus of alpha-tubulin R-HSA-389963 alpha-tubulin:GTP:Cofactor B +Cofactor E -> alpha-tubulin:GTP: Cofactor E +Cofactor B R-HSA-389976 Beta-tubulin:GTP:Cofactor D+alpha-tubulin:GTP:Cofactor E-> Beta-tubulin:GTP:Cofactor D:alpha-tubulin:GTP:Cofactor E R-HSA-389964 Beta-tubulin:GTP:Cofactor D:alpha-tubulin:GTP:Cofactor E+ Cofactor C-> Beta-tubulin:GTP:Cofactor D:alpha-tubulin:GTP:Cofactor E:Cofactor C R-HSA-389960 Formation of tubulin folding intermediates by CCT/TriC R-HSA-389977 Post-chaperonin tubulin folding pathway R-HSA-8955332 Carboxyterminal post-translational modifications of tubulin R-HSA-389958 Cooperation of Prefoldin and TriC/CCT in actin and tubulin folding R-HSA-391251 Protein folding R-HSA-597592 Post-translational protein modification R-HSA-390466 Chaperonin-mediated protein folding R-HSA-392499 Metabolism of proteins