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Protein

Tubulin alpha-2 chain

Gene

alphaTub85E

Organism
Drosophila melanogaster (Fruit fly)
Status
Reviewed-Annotation score: Annotation score: 5 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.

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Sitei449 – 4491Involved in polymerization

Regions

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

GO - Molecular functioni

  • GTPase activity Source: InterPro
  • GTP binding Source: FlyBase
  • structural constituent of cytoskeleton Source: FlyBase

GO - Biological processi

  • centrosome duplication Source: FlyBase
  • mitotic spindle assembly checkpoint Source: FlyBase
  • mitotic spindle organization Source: FlyBase
Complete GO annotation...

Keywords - Ligandi

GTP-binding, Nucleotide-binding

Enzyme and pathway databases

ReactomeiR-DME-114608. Platelet degranulation.
R-DME-5620924. Intraflagellar transport.

Names & Taxonomyi

Protein namesi
Recommended name:
Tubulin alpha-2 chain
Gene namesi
Name:alphaTub85E
Synonyms:TUBA85E
ORF Names:CG9476
OrganismiDrosophila melanogaster (Fruit fly)
Taxonomic identifieri7227 [NCBI]
Taxonomic lineageiEukaryotaMetazoaEcdysozoaArthropodaHexapodaInsectaPterygotaNeopteraEndopterygotaDipteraBrachyceraMuscomorphaEphydroideaDrosophilidaeDrosophilaSophophora
Proteomesi
  • UP000000803 Componenti: Chromosome 3R

Organism-specific databases

FlyBaseiFBgn0003886. alphaTub85E.

Subcellular locationi

GO - Cellular componenti

  • cytoplasm Source: UniProtKB-KW
  • microtubule Source: FlyBase
  • tubulin complex Source: FlyBase
Complete GO annotation...

Keywords - Cellular componenti

Cytoplasm, Cytoskeleton, Microtubule

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 449449Tubulin alpha-2 chainPRO_0000048159Add
BLAST

Amino acid modifications

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Modified residuei40 – 401N6-acetyllysineBy similarity

Post-translational modificationi

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
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

Proteomic databases

PaxDbiP06604.
PRIDEiP06604.

Expressioni

Gene expression databases

BgeeiFBgn0003886.
GenevisibleiP06604. DM.

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.

Protein-protein interaction databases

BioGridi66342. 10 interactions.
IntActiP06604. 1 interaction.
STRINGi7227.FBpp0081565.

Structurei

3D structure databases

ProteinModelPortaliP06604.
SMRiP06604. Positions 1-439.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Belongs to the tubulin family.Curated

Phylogenomic databases

eggNOGiKOG1376. Eukaryota.
COG5023. LUCA.
GeneTreeiENSGT00760000119060.
InParanoidiP06604.
KOiK07374.
OMAiIKMRECI.
OrthoDBiEOG091G0736.
PhylomeDBiP06604.

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.

P06604-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MRECISVHIG QAGVQIGNAC WELYCLEHGI QPDGHMPSDK TVGGGDDSFS
60 70 80 90 100
TFFSETGAGK HVPRAVFVDL EPTVVDEVRT GTYRQLFHPE QLITGKEDAA
110 120 130 140 150
NNYARGHYTI GKEIVDVVLD RIRKLADQCT GLQGFLVFHS FGGGTGSGFT
160 170 180 190 200
SLLMERLSVD YGKKSKLEFS IYPAPQVSTA VVEPYNSILT THTTLEHSDC
210 220 230 240 250
AFMVDNEAIY DICRRNLDIE RPTYMNLNRL IGQIVSSITA SLRFDGALNV
260 270 280 290 300
DLTEFQTNLV PYPRIHFPLA TYAPVISVEK AYHEQLTVAE ITNACFEPAN
310 320 330 340 350
QMVKCDPRRG KYMACCMLYR GDVVPKDVNA AIATIKTKRS IQFVDWCPTG
360 370 380 390 400
FKVGINYQPP TVVPGGDLAK VQRAVCMLSN TTAIAEAWAR LDHKFDLMYA
410 420 430 440
KRAFVHWYVG EGMEEGEFAE AREDLAALEK DYEEVGIDST TELGEDEEY
Length:449
Mass (Da):49,967
Last modified:January 1, 1988 - v1
Checksum:i61BBF5AF92308AB6
GO

Experimental Info

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Sequence conflicti354 – 3541G → R in AAM29636 (PubMed:12537569).Curated

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
M14644 Genomic DNA. Translation: AAA28986.1.
AE014297 Genomic DNA. Translation: AAF54433.1.
AY113631 mRNA. Translation: AAM29636.1.
BT044334 mRNA. Translation: ACH92399.1.
PIRiB26488.
RefSeqiNP_524297.1. NM_079573.5.
UniGeneiDm.1698.

Genome annotation databases

EnsemblMetazoaiFBtr0082087; FBpp0081565; FBgn0003886.
GeneIDi41183.
KEGGidme:Dmel_CG9476.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
M14644 Genomic DNA. Translation: AAA28986.1.
AE014297 Genomic DNA. Translation: AAF54433.1.
AY113631 mRNA. Translation: AAM29636.1.
BT044334 mRNA. Translation: ACH92399.1.
PIRiB26488.
RefSeqiNP_524297.1. NM_079573.5.
UniGeneiDm.1698.

3D structure databases

ProteinModelPortaliP06604.
SMRiP06604. Positions 1-439.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

BioGridi66342. 10 interactions.
IntActiP06604. 1 interaction.
STRINGi7227.FBpp0081565.

Proteomic databases

PaxDbiP06604.
PRIDEiP06604.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblMetazoaiFBtr0082087; FBpp0081565; FBgn0003886.
GeneIDi41183.
KEGGidme:Dmel_CG9476.

Organism-specific databases

CTDi41183.
FlyBaseiFBgn0003886. alphaTub85E.

Phylogenomic databases

eggNOGiKOG1376. Eukaryota.
COG5023. LUCA.
GeneTreeiENSGT00760000119060.
InParanoidiP06604.
KOiK07374.
OMAiIKMRECI.
OrthoDBiEOG091G0736.
PhylomeDBiP06604.

Enzyme and pathway databases

ReactomeiR-DME-114608. Platelet degranulation.
R-DME-5620924. Intraflagellar transport.

Miscellaneous databases

GenomeRNAii41183.
PROiP06604.

Gene expression databases

BgeeiFBgn0003886.
GenevisibleiP06604. DM.

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 nameiTBA2_DROME
AccessioniPrimary (citable) accession number: P06604
Secondary accession number(s): B5RJ60, Q8MYS4, Q9VH86
Entry historyi
Integrated into UniProtKB/Swiss-Prot: January 1, 1988
Last sequence update: January 1, 1988
Last modified: September 7, 2016
This is version 150 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programDrosophila annotation project

Miscellaneousi

Keywords - Technical termi

Complete proteome, Direct protein sequencing, Reference proteome

Documents

  1. Drosophila
    Drosophila: entries, gene names and cross-references to FlyBase
  2. 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.