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Q9BVA1 (TBB2B_HUMAN) Reviewed, UniProtKB/Swiss-Prot

Last modified July 9, 2014. Version 126. Feed History...

Clusters with 100%, 90%, 50% identity | Documents (5) | Third-party data text xml rdf/xml gff fasta
to top of pageNames·Attributes·General annotation·Ontologies·Interactions·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize order

Names and origin

Protein namesRecommended name:
Tubulin beta-2B chain
Gene names
Name:TUBB2B
OrganismHomo sapiens (Human) [Reference proteome]
Taxonomic identifier9606 [NCBI]
Taxonomic lineageEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaEuarchontogliresPrimatesHaplorrhiniCatarrhiniHominidaeHomo

Protein attributes

Sequence length445 AA.
Sequence statusComplete.
Protein existenceEvidence at protein level

General annotation (Comments)

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 By similarity. TUBB2B is implicated in neuronal migration. Ref.9

Subunit structure

Dimer of alpha and beta chains. A typical microtubule is a hollow water-filled tube with an outer diameter of 25 nm and an inner diameter of 15 nM. Alpha-beta heterodimers associate head-to-tail to form protofilaments running lengthwise along the microtubule wall with the beta-tubulin subunit facing the microtubule plus end conferring a structural polarity. Microtubules usually have 13 protofilaments but different protofilament numbers can be found in some organisms and specialized cells.

Subcellular location

Cytoplasmcytoskeleton By similarity.

Tissue specificity

High expression in brain. Ref.10

Post-translational modification

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.

Involvement in disease

Polymicrogyria, symmetric or asymmetric (PMGYSA) [MIM:610031]: A malformation of the cortex in which the brain surface is irregular and characterized by an excessive number of small gyri with abnormal lamination. Polymicrogyria is a heterogeneous disorder, considered to be the result of postmigratory abnormal cortical organization.
Note: The disease is caused by mutations affecting the gene represented in this entry. Ref.9

Sequence similarities

Belongs to the tubulin family.

Binary interactions

With

Entry

#Exp.

IntAct

Notes

CACNA1AO005552EBI-355665,EBI-766279

Sequence annotation (Features)

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifier

Molecule processing

Chain1 – 445445Tubulin beta-2B chain
PRO_0000262651

Regions

Nucleotide binding140 – 1467GTP Potential

Amino acid modifications

Modified residue1721Phosphoserine; by CDK1 By similarity

Natural variations

Natural variant1721S → P in PMGYSA; affects microtubules assembly. Ref.9
VAR_063389
Natural variant2011C → S. Ref.9
Corresponds to variant rs1054331 [ dbSNP | Ensembl ].
VAR_063390
Natural variant2101I → T in PMGYSA. Ref.9
VAR_063391
Natural variant2281L → P in PMGYSA. Ref.9
VAR_063392
Natural variant2651F → L in PMGYSA; affects microtubules assembly. Ref.9
VAR_063393
Natural variant3121T → M in PMGYSA. Ref.9
VAR_063394

Sequences

Sequence LengthMass (Da)Tools
Q9BVA1 [UniParc].

Last modified June 1, 2001. Version 1.
Checksum: 4DC3956EFF880746

FASTA44549,953
        10         20         30         40         50         60 
MREIVHIQAG QCGNQIGAKF WEVISDEHGI DPTGSYHGDS DLQLERINVY YNEATGNKYV 

        70         80         90        100        110        120 
PRAILVDLEP GTMDSVRSGP FGQIFRPDNF VFGQSGAGNN WAKGHYTEGA ELVDSVLDVV 

       130        140        150        160        170        180 
RKESESCDCL QGFQLTHSLG GGTGSGMGTL LISKIREEYP DRIMNTFSVM PSPKVSDTVV 

       190        200        210        220        230        240 
EPYNATLSVH QLVENTDETY CIDNEALYDI CFRTLKLTTP TYGDLNHLVS ATMSGVTTCL 

       250        260        270        280        290        300 
RFPGQLNADL RKLAVNMVPF PRLHFFMPGF APLTSRGSQQ YRALTVPELT QQMFDSKNMM 

       310        320        330        340        350        360 
AACDPRHGRY LTVAAIFRGR MSMKEVDEQM LNVQNKNSSY FVEWIPNNVK TAVCDIPPRG 

       370        380        390        400        410        420 
LKMSATFIGN STAIQELFKR ISEQFTAMFR RKAFLHWYTG EGMDEMEFTE AESNMNDLVS 

       430        440 
EYQQYQDATA DEQGEFEEEE GEDEA 

« Hide

References

« Hide 'large scale' references
[1]"Cloning of human full-length CDSs in BD Creator(TM) system donor vector."
Kalnine N., Chen X., Rolfs A., Halleck A., Hines L., Eisenstein S., Koundinya M., Raphael J., Moreira D., Kelley T., LaBaer J., Lin Y., Phelan M., Farmer A.
Submitted (OCT-2004) to the EMBL/GenBank/DDBJ databases
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA].
[2]"Cloning of human full open reading frames in Gateway(TM) system entry vector (pDONR201)."
Ebert L., Schick M., Neubert P., Schatten R., Henze S., Korn B.
Submitted (JUN-2004) to the EMBL/GenBank/DDBJ databases
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA].
[3]"Complete sequencing and characterization of 21,243 full-length human cDNAs."
Ota T., Suzuki Y., Nishikawa T., Otsuki T., Sugiyama T., Irie R., Wakamatsu A., Hayashi K., Sato H., Nagai K., Kimura K., Makita H., Sekine M., Obayashi M., Nishi T., Shibahara T., Tanaka T., Ishii S. expand/collapse author list , Yamamoto J., Saito K., Kawai Y., Isono Y., Nakamura Y., Nagahari K., Murakami K., Yasuda T., Iwayanagi T., Wagatsuma M., Shiratori A., Sudo H., Hosoiri T., Kaku Y., Kodaira H., Kondo H., Sugawara M., Takahashi M., Kanda K., Yokoi T., Furuya T., Kikkawa E., Omura Y., Abe K., Kamihara K., Katsuta N., Sato K., Tanikawa M., Yamazaki M., Ninomiya K., Ishibashi T., Yamashita H., Murakawa K., Fujimori K., Tanai H., Kimata M., Watanabe M., Hiraoka S., Chiba Y., Ishida S., Ono Y., Takiguchi S., Watanabe S., Yosida M., Hotuta T., Kusano J., Kanehori K., Takahashi-Fujii A., Hara H., Tanase T.-O., Nomura Y., Togiya S., Komai F., Hara R., Takeuchi K., Arita M., Imose N., Musashino K., Yuuki H., Oshima A., Sasaki N., Aotsuka S., Yoshikawa Y., Matsunawa H., Ichihara T., Shiohata N., Sano S., Moriya S., Momiyama H., Satoh N., Takami S., Terashima Y., Suzuki O., Nakagawa S., Senoh A., Mizoguchi H., Goto Y., Shimizu F., Wakebe H., Hishigaki H., Watanabe T., Sugiyama A., Takemoto M., Kawakami B., Yamazaki M., Watanabe K., Kumagai A., Itakura S., Fukuzumi Y., Fujimori Y., Komiyama M., Tashiro H., Tanigami A., Fujiwara T., Ono T., Yamada K., Fujii Y., Ozaki K., Hirao M., Ohmori Y., Kawabata A., Hikiji T., Kobatake N., Inagaki H., Ikema Y., Okamoto S., Okitani R., Kawakami T., Noguchi S., Itoh T., Shigeta K., Senba T., Matsumura K., Nakajima Y., Mizuno T., Morinaga M., Sasaki M., Togashi T., Oyama M., Hata H., Watanabe M., Komatsu T., Mizushima-Sugano J., Satoh T., Shirai Y., Takahashi Y., Nakagawa K., Okumura K., Nagase T., Nomura N., Kikuchi H., Masuho Y., Yamashita R., Nakai K., Yada T., Nakamura Y., Ohara O., Isogai T., Sugano S.
Nat. Genet. 36:40-45(2004) [PubMed] [Europe PMC] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA].
[4]"The DNA sequence and analysis of human chromosome 6."
Mungall A.J., Palmer S.A., Sims S.K., Edwards C.A., Ashurst J.L., Wilming L., Jones M.C., Horton R., Hunt S.E., Scott C.E., Gilbert J.G.R., Clamp M.E., Bethel G., Milne S., Ainscough R., Almeida J.P., Ambrose K.D., Andrews T.D. expand/collapse author list , Ashwell R.I.S., Babbage A.K., Bagguley C.L., Bailey J., Banerjee R., Barker D.J., Barlow K.F., Bates K., Beare D.M., Beasley H., Beasley O., Bird C.P., Blakey S.E., Bray-Allen S., Brook J., Brown A.J., Brown J.Y., Burford D.C., Burrill W., Burton J., Carder C., Carter N.P., Chapman J.C., Clark S.Y., Clark G., Clee C.M., Clegg S., Cobley V., Collier R.E., Collins J.E., Colman L.K., Corby N.R., Coville G.J., Culley K.M., Dhami P., Davies J., Dunn M., Earthrowl M.E., Ellington A.E., Evans K.A., Faulkner L., Francis M.D., Frankish A., Frankland J., French L., Garner P., Garnett J., Ghori M.J., Gilby L.M., Gillson C.J., Glithero R.J., Grafham D.V., Grant M., Gribble S., Griffiths C., Griffiths M.N.D., Hall R., Halls K.S., Hammond S., Harley J.L., Hart E.A., Heath P.D., Heathcott R., Holmes S.J., Howden P.J., Howe K.L., Howell G.R., Huckle E., Humphray S.J., Humphries M.D., Hunt A.R., Johnson C.M., Joy A.A., Kay M., Keenan S.J., Kimberley A.M., King A., Laird G.K., Langford C., Lawlor S., Leongamornlert D.A., Leversha M., Lloyd C.R., Lloyd D.M., Loveland J.E., Lovell J., Martin S., Mashreghi-Mohammadi M., Maslen G.L., Matthews L., McCann O.T., McLaren S.J., McLay K., McMurray A., Moore M.J.F., Mullikin J.C., Niblett D., Nickerson T., Novik K.L., Oliver K., Overton-Larty E.K., Parker A., Patel R., Pearce A.V., Peck A.I., Phillimore B.J.C.T., Phillips S., Plumb R.W., Porter K.M., Ramsey Y., Ranby S.A., Rice C.M., Ross M.T., Searle S.M., Sehra H.K., Sheridan E., Skuce C.D., Smith S., Smith M., Spraggon L., Squares S.L., Steward C.A., Sycamore N., Tamlyn-Hall G., Tester J., Theaker A.J., Thomas D.W., Thorpe A., Tracey A., Tromans A., Tubby B., Wall M., Wallis J.M., West A.P., White S.S., Whitehead S.L., Whittaker H., Wild A., Willey D.J., Wilmer T.E., Wood J.M., Wray P.W., Wyatt J.C., Young L., Younger R.M., Bentley D.R., Coulson A., Durbin R.M., Hubbard T., Sulston J.E., Dunham I., Rogers J., Beck S.
Nature 425:805-811(2003) [PubMed] [Europe PMC] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
[5]Mural R.J., Istrail S., Sutton G.G., Florea L., Halpern A.L., Mobarry C.M., Lippert R., Walenz B., Shatkay H., Dew I., Miller J.R., Flanigan M.J., Edwards N.J., Bolanos R., Fasulo D., Halldorsson B.V., Hannenhalli S., Turner R. expand/collapse author list , Yooseph S., Lu F., Nusskern D.R., Shue B.C., Zheng X.H., Zhong F., Delcher A.L., Huson D.H., Kravitz S.A., Mouchard L., Reinert K., Remington K.A., Clark A.G., Waterman M.S., Eichler E.E., Adams M.D., Hunkapiller M.W., Myers E.W., Venter J.C.
Submitted (JUL-2005) to the EMBL/GenBank/DDBJ databases
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
[6]"The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC)."
The MGC Project Team
Genome Res. 14:2121-2127(2004) [PubMed] [Europe PMC] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA].
Tissue: Brain and Muscle.
[7]Lubec G., Afjehi-Sadat L., Chen W.-Q., Sun Y.
Submitted (DEC-2008) to UniProtKB
Cited for: PROTEIN SEQUENCE OF 47-58; 63-121; 163-174; 217-276; 283-297; 310-318; 325-359; 363-379 AND 381-390, IDENTIFICATION BY MASS SPECTROMETRY.
Tissue: Brain, Cajal-Retzius cell and Fetal brain cortex.
[8]"Evolutionary divergence of enzymatic mechanisms for posttranslational polyglycylation."
Rogowski K., Juge F., van Dijk J., Wloga D., Strub J.-M., Levilliers N., Thomas D., Bre M.-H., Van Dorsselaer A., Gaertig J., Janke C.
Cell 137:1076-1087(2009) [PubMed] [Europe PMC] [Abstract]
Cited for: GLYCYLATION.
[9]"Mutations in the beta-tubulin gene TUBB2B result in asymmetrical polymicrogyria."
Jaglin X.H., Poirier K., Saillour Y., Buhler E., Tian G., Bahi-Buisson N., Fallet-Bianco C., Phan-Dinh-Tuy F., Kong X.P., Bomont P., Castelnau-Ptakhine L., Odent S., Loget P., Kossorotoff M., Snoeck I., Plessis G., Parent P., Beldjord C. expand/collapse author list , Cardoso C., Represa A., Flint J., Keays D.A., Cowan N.J., Chelly J.
Nat. Genet. 41:746-752(2009) [PubMed] [Europe PMC] [Abstract]
Cited for: FUNCTION, VARIANTS PMGYSA PRO-172; THR-210; PRO-228; LEU-265 AND MET-312, VARIANT SER-201, CHARACTERIZATION OF VARIANTS PMGYSA PRO-172 AND LEU-265.
[10]"Tumoral and tissue-specific expression of the major human beta-tubulin isotypes."
Leandro-Garcia L.J., Leskela S., Landa I., Montero-Conde C., Lopez-Jimenez E., Leton R., Cascon A., Robledo M., Rodriguez-Antona C.
Cytoskeleton 67:214-223(2010) [PubMed] [Europe PMC] [Abstract]
Cited for: TISSUE SPECIFICITY.
[11]"Initial characterization of the human central proteome."
Burkard T.R., Planyavsky M., Kaupe I., Breitwieser F.P., Buerckstuemmer T., Bennett K.L., Superti-Furga G., Colinge J.
BMC Syst. Biol. 5:17-17(2011) [PubMed] [Europe PMC] [Abstract]
Cited for: IDENTIFICATION BY MASS SPECTROMETRY [LARGE SCALE ANALYSIS].
+Additional computationally mapped references.

Cross-references

Sequence databases

EMBL
GenBank
DDBJ
BT019930 mRNA. Translation: AAV38733.1.
CR456788 mRNA. Translation: CAG33069.1.
AK289433 mRNA. Translation: BAF82122.1.
AL445309 Genomic DNA. Translation: CAI40952.1.
CH471087 Genomic DNA. Translation: EAW55125.1.
BC001352 mRNA. Translation: AAH01352.1.
BC063610 mRNA. Translation: AAH63610.1.
CCDSCCDS4485.1.
RefSeqNP_821080.1. NM_178012.4.
UniGeneHs.300701.

3D structure databases

ProteinModelPortalQ9BVA1.
SMRQ9BVA1. Positions 1-431.
ModBaseSearch...
MobiDBSearch...

Protein-protein interaction databases

BioGrid131483. 35 interactions.
IntActQ9BVA1. 17 interactions.
MINTMINT-1152234.
STRING9606.ENSP00000259818.

Chemistry

BindingDBQ9BVA1.
ChEMBLCHEMBL2095182.

PTM databases

PhosphoSiteQ9BVA1.

Polymorphism databases

DMDM74761283.

Proteomic databases

MaxQBQ9BVA1.
PaxDbQ9BVA1.
PRIDEQ9BVA1.

Protocols and materials databases

DNASU347733.
StructuralBiologyKnowledgebaseSearch...

Genome annotation databases

EnsemblENST00000259818; ENSP00000259818; ENSG00000137285.
GeneID347733.
KEGGhsa:347733.
UCSCuc003mvg.3. human.

Organism-specific databases

CTD347733.
GeneCardsGC06M003224.
HGNCHGNC:30829. TUBB2B.
HPAHPA043640.
HPA046280.
MIM610031. phenotype.
612850. gene.
neXtProtNX_Q9BVA1.
Orphanet45358. Congenital fibrosis of extraocular muscles.
300573. Polymicrogyria due to TUBB2B mutation.
PharmGKBPA142670671.
GenAtlasSearch...

Phylogenomic databases

eggNOGCOG5023.
HOGENOMHOG000165710.
HOVERGENHBG000089.
InParanoidQ9BVA1.
KOK07375.
OMAYQQEEEY.
OrthoDBEOG71ZP1H.
PhylomeDBQ9BVA1.
TreeFamTF300298.

Enzyme and pathway databases

ReactomeREACT_111045. Developmental Biology.
REACT_11123. Membrane Trafficking.
REACT_115566. Cell Cycle.
REACT_17015. Metabolism of proteins.
REACT_21300. Mitotic M-M/G1 phases.
REACT_604. Hemostasis.
REACT_6900. Immune System.

Gene expression databases

ArrayExpressQ9BVA1.
BgeeQ9BVA1.
CleanExHS_TUBB2B.
GenevestigatorQ9BVA1.

Family and domain databases

Gene3D1.10.287.600. 1 hit.
3.30.1330.20. 1 hit.
3.40.50.1440. 1 hit.
InterProIPR013838. Beta-tubulin_BS.
IPR002453. Beta_tubulin.
IPR008280. Tub_FtsZ_C.
IPR000217. Tubulin.
IPR018316. Tubulin/FtsZ_2-layer-sand-dom.
IPR023123. Tubulin_C.
IPR017975. Tubulin_CS.
IPR003008. Tubulin_FtsZ_GTPase.
[Graphical view]
PANTHERPTHR11588. PTHR11588. 1 hit.
PfamPF00091. Tubulin. 1 hit.
PF03953. Tubulin_C. 1 hit.
[Graphical view]
PRINTSPR01163. BETATUBULIN.
PR01161. TUBULIN.
SMARTSM00864. Tubulin. 1 hit.
SM00865. Tubulin_C. 1 hit.
[Graphical view]
SUPFAMSSF52490. SSF52490. 1 hit.
SSF55307. SSF55307. 1 hit.
PROSITEPS00227. TUBULIN. 1 hit.
PS00228. TUBULIN_B_AUTOREG. 1 hit.
[Graphical view]
ProtoNetSearch...

Other

ChiTaRSTUBB2B. human.
GenomeRNAi347733.
NextBio99262.
PROQ9BVA1.
SOURCESearch...

Entry information

Entry nameTBB2B_HUMAN
AccessionPrimary (citable) accession number: Q9BVA1
Secondary accession number(s): A8K068
Entry history
Integrated into UniProtKB/Swiss-Prot: November 28, 2006
Last sequence update: June 1, 2001
Last modified: July 9, 2014
This is version 126 of the entry and version 1 of the sequence. [Complete history]
Entry statusReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program
DisclaimerAny medical or genetic information present in this entry is provided for research, educational and informational purposes only. It is not in any way intended to be used as a substitute for professional medical advice, diagnosis, treatment or care.

Relevant documents

SIMILARITY comments

Index of protein domains and families

MIM cross-references

Online Mendelian Inheritance in Man (MIM) cross-references in UniProtKB/Swiss-Prot

Human polymorphisms and disease mutations

Index of human polymorphisms and disease mutations

Human entries with polymorphisms or disease mutations

List of human entries with polymorphisms or disease mutations

Human chromosome 6

Human chromosome 6: entries, gene names and cross-references to MIM