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Protein

Tubulin alpha-4A chain

Gene

TUBA4A

Organism
Bos taurus (Bovine)
Status
Reviewed-Annotation score: Annotation score: 4 out of 5-Experimental evidence at protein leveli

Functioni

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.

Regions

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Nucleotide bindingi142 – 1487GTPSequence analysis

GO - Molecular functioni

GO - Biological processi

Complete GO annotation...

Keywords - Ligandi

GTP-binding, Nucleotide-binding

Enzyme and pathway databases

ReactomeiR-BTA-114608. Platelet degranulation.
R-BTA-2565942. Regulation of PLK1 Activity at G2/M Transition.
R-BTA-380259. Loss of Nlp from mitotic centrosomes.
R-BTA-380270. Recruitment of mitotic centrosome proteins and complexes.
R-BTA-5610787. Hedgehog 'off' state.
R-BTA-5620912. Anchoring of the basal body to the plasma membrane.
R-BTA-5620924. Intraflagellar transport.
R-BTA-5632684. Hedgehog 'on' state.
R-BTA-8854518. AURKA Activation by TPX2.

Names & Taxonomyi

Protein namesi
Recommended name:
Tubulin alpha-4A chain
Alternative name(s):
Alpha-tubulin 1
Tubulin alpha-1 chain
Gene namesi
Name:TUBA4A
Synonyms:TUBA1
OrganismiBos taurus (Bovine)Curated
Taxonomic identifieri9913 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaLaurasiatheriaCetartiodactylaRuminantiaPecoraBovidaeBovinaeBos
Proteomesi
  • UP000009136 Componenti: Chromosome 2

Subcellular locationi

GO - Cellular componenti

Complete GO annotation...

Keywords - Cellular componenti

Cytoplasm, Cytoskeleton, Microtubule

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 448448Tubulin alpha-4A chainPRO_0000048115Add
BLAST

Amino acid modifications

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Modified residuei48 – 481PhosphoserineBy similarity
Modified residuei83 – 831Nitrated tyrosineBy similarity
Modified residuei432 – 4321PhosphotyrosineBy similarity
Modified residuei439 – 4391PhosphoserineBy similarity

Post-translational modificationi

Some glutamate residues at the C-terminus are polyglycylated, resulting in polyglycine chains on the gamma-carboxyl group. Glycylation 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 polyglycylation levels increases polyglutamylation, and reciprocally. The precise function of polyglycylation is still unclear.By similarity
Some glutamate residues at the C-terminus are polyglutamylated, resulting in polyglutamate chains on the gamma-carboxyl group (By similarity). Polyglutamylation plays a key role in microtubule severing by spastin (SPAST). SPAST preferentially recognizes and acts on microtubules decorated with short polyglutamate tails: severing activity by SPAST increases as the number of glutamates per tubulin rises from one to eight, but decreases beyond this glutamylation threshold (By similarity).By similarity
Acetylation of alpha chains 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).By similarity

Keywords - PTMi

Acetylation, Nitration, Phosphoprotein

Proteomic databases

PaxDbiP81948.
PeptideAtlasiP81948.
PRIDEiP81948.

Expressioni

Gene expression databases

BgeeiENSBTAG00000030974.

Interactioni

Subunit structurei

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.

Binary interactionsi

WithEntry#Exp.IntActNotes
GUCA1AP460652EBI-6943159,EBI-6943108

Protein-protein interaction databases

IntActiP81948. 8 interactions.
MINTiMINT-3387904.
STRINGi9913.ENSBTAP00000003192.

Structurei

3D structure databases

ProteinModelPortaliP81948.
SMRiP81948. Positions 1-439.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Belongs to the tubulin family.Curated

Phylogenomic databases

eggNOGiKOG1376. Eukaryota.
COG5023. LUCA.
GeneTreeiENSGT00760000119060.
HOGENOMiHOG000165711.
HOVERGENiHBG000089.
InParanoidiP81948.
KOiK07374.
OMAiSIPQREC.
OrthoDBiEOG091G0736.
TreeFamiTF300314.

Family and domain databases

Gene3Di1.10.287.600. 1 hit.
3.30.1330.20. 1 hit.
3.40.50.1440. 1 hit.
InterProiIPR002452. Alpha_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]
PANTHERiPTHR11588. PTHR11588. 1 hit.
PfamiPF00091. Tubulin. 1 hit.
PF03953. Tubulin_C. 1 hit.
[Graphical view]
PRINTSiPR01162. ALPHATUBULIN.
PR01161. TUBULIN.
SMARTiSM00864. Tubulin. 1 hit.
SM00865. Tubulin_C. 1 hit.
[Graphical view]
SUPFAMiSSF52490. SSF52490. 1 hit.
SSF55307. SSF55307. 1 hit.
PROSITEiPS00227. TUBULIN. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

P81948-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MRECISVHVG QAGVQMGNAC WELYCLEHGI QPDGQMPSDK TIGGGDDSFT
60 70 80 90 100
TFFCETGAGK HVPRAVFVDL EPTVIDEIRN GPYRQLFHPE QLITGKEDAA
110 120 130 140 150
NNYARGHYTI GKEIIDPVLD RIRKLSDQCT GLQGFLVFHS FGGGTGSGFT
160 170 180 190 200
SLLMERLSVD YGKKSKLEFS IYPAPQVSTA VVEPYNSILT THTTLEHSDC
210 220 230 240 250
AFMVDNEAIY DICRRNLDIE RPTYTNLNRL ISQIVSSITA SLRFDGALNV
260 270 280 290 300
DLTEFQTNLV PYPRIHFPLA TYAPVISAEK AYHEQLSVAE ITNACFEPAN
310 320 330 340 350
QMVKCDPRHG KYMACCLLYR GDVVPKDVNA AIAAIKTKRS IQFVDWCPTG
360 370 380 390 400
FKVGINYQPP TVVPGGDLAK VQRAVCMLSN TTAIAEAWAR LDHKFDLMYA
410 420 430 440
KRAFVHWYVG EGMEEGEFSE AREDMAALEK DYEEVGIDSY EDEDEGEE
Length:448
Mass (Da):49,924
Last modified:May 30, 2006 - v2
Checksum:iC00ED90A183FE8F2
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
BT021034 mRNA. Translation: AAX09051.1.
BC118199 mRNA. Translation: AAI18200.1.
RefSeqiNP_001071626.1. NM_001078158.1.
UniGeneiBt.65153.

Genome annotation databases

EnsembliENSBTAT00000003192; ENSBTAP00000003192; ENSBTAG00000030974.
GeneIDi777775.
KEGGibta:777775.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
BT021034 mRNA. Translation: AAX09051.1.
BC118199 mRNA. Translation: AAI18200.1.
RefSeqiNP_001071626.1. NM_001078158.1.
UniGeneiBt.65153.

3D structure databases

ProteinModelPortaliP81948.
SMRiP81948. Positions 1-439.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

IntActiP81948. 8 interactions.
MINTiMINT-3387904.
STRINGi9913.ENSBTAP00000003192.

Proteomic databases

PaxDbiP81948.
PeptideAtlasiP81948.
PRIDEiP81948.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsembliENSBTAT00000003192; ENSBTAP00000003192; ENSBTAG00000030974.
GeneIDi777775.
KEGGibta:777775.

Organism-specific databases

CTDi7277.

Phylogenomic databases

eggNOGiKOG1376. Eukaryota.
COG5023. LUCA.
GeneTreeiENSGT00760000119060.
HOGENOMiHOG000165711.
HOVERGENiHBG000089.
InParanoidiP81948.
KOiK07374.
OMAiSIPQREC.
OrthoDBiEOG091G0736.
TreeFamiTF300314.

Enzyme and pathway databases

ReactomeiR-BTA-114608. Platelet degranulation.
R-BTA-2565942. Regulation of PLK1 Activity at G2/M Transition.
R-BTA-380259. Loss of Nlp from mitotic centrosomes.
R-BTA-380270. Recruitment of mitotic centrosome proteins and complexes.
R-BTA-5610787. Hedgehog 'off' state.
R-BTA-5620912. Anchoring of the basal body to the plasma membrane.
R-BTA-5620924. Intraflagellar transport.
R-BTA-5632684. Hedgehog 'on' state.
R-BTA-8854518. AURKA Activation by TPX2.

Gene expression databases

BgeeiENSBTAG00000030974.

Family and domain databases

Gene3Di1.10.287.600. 1 hit.
3.30.1330.20. 1 hit.
3.40.50.1440. 1 hit.
InterProiIPR002452. Alpha_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]
PANTHERiPTHR11588. PTHR11588. 1 hit.
PfamiPF00091. Tubulin. 1 hit.
PF03953. Tubulin_C. 1 hit.
[Graphical view]
PRINTSiPR01162. ALPHATUBULIN.
PR01161. TUBULIN.
SMARTiSM00864. Tubulin. 1 hit.
SM00865. Tubulin_C. 1 hit.
[Graphical view]
SUPFAMiSSF52490. SSF52490. 1 hit.
SSF55307. SSF55307. 1 hit.
PROSITEiPS00227. TUBULIN. 1 hit.
[Graphical view]
ProtoNetiSearch...

Entry informationi

Entry nameiTBA4A_BOVIN
AccessioniPrimary (citable) accession number: P81948
Secondary accession number(s): Q17QT1, Q5E986
Entry historyi
Integrated into UniProtKB/Swiss-Prot: August 31, 2004
Last sequence update: May 30, 2006
Last modified: September 7, 2016
This is version 104 of the entry and version 2 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program

Miscellaneousi

Miscellaneous

This tubulin does not have a C-terminal tyrosine.Curated

Keywords - Technical termi

Complete proteome, Direct protein sequencing, Reference proteome

Documents

  1. SIMILARITY comments
    Index of protein domains and families

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into one UniRef entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.