ID T1GGH3_MEGSC Unreviewed; 170 AA.
AC T1GGH3;
DT 16-OCT-2013, integrated into UniProtKB/TrEMBL.
DT 16-OCT-2013, sequence version 1.
DT 27-MAR-2024, entry version 39.
DE RecName: Full=Tubulin alpha chain {ECO:0000256|RuleBase:RU000352};
OS Megaselia scalaris (Humpbacked fly) (Phora scalaris).
OC Eukaryota; Metazoa; Ecdysozoa; Arthropoda; Hexapoda; Insecta; Pterygota;
OC Neoptera; Endopterygota; Diptera; Brachycera; Muscomorpha; Platypezoidea;
OC Phoridae; Megaseliini; Megaselia.
OX NCBI_TaxID=36166 {ECO:0000313|EnsemblMetazoa:MESCA002493-PA, ECO:0000313|Proteomes:UP000015102};
RN [1] {ECO:0000313|Proteomes:UP000015102}
RP NUCLEOTIDE SEQUENCE.
RC STRAIN=Durham, NC isolate 2 -- Noor lab
RC {ECO:0000313|Proteomes:UP000015102};
RA Hughes D.;
RL Submitted (FEB-2013) to the EMBL/GenBank/DDBJ databases.
RN [2] {ECO:0000313|EnsemblMetazoa:MESCA002493-PA}
RP IDENTIFICATION.
RG EnsemblMetazoa;
RL Submitted (JUN-2015) to UniProtKB.
CC -!- FUNCTION: Tubulin is the major constituent of microtubules, a cylinder
CC consisting of laterally associated linear protofilaments composed of
CC alpha- and beta-tubulin heterodimers. Microtubules grow by the addition
CC of GTP-tubulin dimers to the microtubule end, where a stabilizing cap
CC forms. Below the cap, tubulin dimers are in GDP-bound state, owing to
CC GTPase activity of alpha-tubulin. {ECO:0000256|RuleBase:RU000352}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=GTP + H2O = GDP + H(+) + phosphate; Xref=Rhea:RHEA:19669,
CC ChEBI:CHEBI:15377, ChEBI:CHEBI:15378, ChEBI:CHEBI:37565,
CC ChEBI:CHEBI:43474, ChEBI:CHEBI:58189;
CC Evidence={ECO:0000256|ARBA:ARBA00001702};
CC PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:19670;
CC Evidence={ECO:0000256|ARBA:ARBA00001702};
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000256|ARBA:ARBA00001946};
CC -!- SUBUNIT: Dimer of alpha and beta chains. A typical microtubule is a
CC hollow water-filled tube with an outer diameter of 25 nm and an inner
CC diameter of 15 nM. Alpha-beta heterodimers associate head-to-tail to
CC form protofilaments running lengthwise along the microtubule wall with
CC the beta-tubulin subunit facing the microtubule plus end conferring a
CC structural polarity. Microtubules usually have 13 protofilaments but
CC different protofilament numbers can be found in some organisms and
CC specialized cells. {ECO:0000256|RuleBase:RU000352}.
CC -!- SIMILARITY: Belongs to the tubulin family.
CC {ECO:0000256|ARBA:ARBA00009636, ECO:0000256|RuleBase:RU000352}.
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DR EMBL; CAQQ02010144; -; NOT_ANNOTATED_CDS; Genomic_DNA.
DR EMBL; CAQQ02010145; -; NOT_ANNOTATED_CDS; Genomic_DNA.
DR EMBL; CAQQ02010146; -; NOT_ANNOTATED_CDS; Genomic_DNA.
DR AlphaFoldDB; T1GGH3; -.
DR STRING; 36166.T1GGH3; -.
DR EnsemblMetazoa; MESCA002493-RA; MESCA002493-PA; MESCA002493.
DR HOGENOM; CLU_1572425_0_0_1; -.
DR OMA; CWITRRS; -.
DR Proteomes; UP000015102; Unassembled WGS sequence.
DR GO; GO:0016020; C:membrane; IEA:UniProtKB-KW.
DR GO; GO:0005874; C:microtubule; IEA:UniProtKB-KW.
DR GO; GO:0005525; F:GTP binding; IEA:UniProtKB-UniRule.
DR GO; GO:0016787; F:hydrolase activity; IEA:UniProtKB-KW.
DR GO; GO:0005200; F:structural constituent of cytoskeleton; IEA:InterPro.
DR GO; GO:0007017; P:microtubule-based process; IEA:InterPro.
DR Gene3D; 3.40.50.1440; Tubulin/FtsZ, GTPase domain; 1.
DR InterPro; IPR002452; Alpha_tubulin.
DR InterPro; IPR000217; Tubulin.
DR InterPro; IPR036525; Tubulin/FtsZ_GTPase_sf.
DR InterPro; IPR017975; Tubulin_CS.
DR InterPro; IPR003008; Tubulin_FtsZ_GTPase.
DR PANTHER; PTHR11588; TUBULIN; 1.
DR PANTHER; PTHR11588:SF239; TUBULIN ALPHA CHAIN; 1.
DR Pfam; PF00091; Tubulin; 1.
DR PRINTS; PR01162; ALPHATUBULIN.
DR PRINTS; PR01161; TUBULIN.
DR SMART; SM00864; Tubulin; 1.
DR SUPFAM; SSF52490; Tubulin nucleotide-binding domain-like; 1.
DR PROSITE; PS00227; TUBULIN; 1.
PE 3: Inferred from homology;
KW Acetylation {ECO:0000256|ARBA:ARBA00022990};
KW GTP-binding {ECO:0000256|ARBA:ARBA00023134, ECO:0000256|RuleBase:RU000352};
KW Hydrolase {ECO:0000256|ARBA:ARBA00022801};
KW Membrane {ECO:0000256|SAM:Phobius};
KW Microtubule {ECO:0000256|ARBA:ARBA00022701, ECO:0000256|RuleBase:RU000352};
KW Nucleotide-binding {ECO:0000256|ARBA:ARBA00022741,
KW ECO:0000256|RuleBase:RU000352};
KW Reference proteome {ECO:0000313|Proteomes:UP000015102};
KW Transmembrane {ECO:0000256|SAM:Phobius};
KW Transmembrane helix {ECO:0000256|SAM:Phobius}.
FT TRANSMEM 115..135
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT DOMAIN 2..148
FT /note="Tubulin/FtsZ GTPase"
FT /evidence="ECO:0000259|SMART:SM00864"
SQ SEQUENCE 170 AA; 19388 MW; C7978C0E3955A881 CRC64;
MDIFNEIRSG AYRKLFNPNM LITGKEDSGS NYSRGYFTLG SEMIDYTMNN IRLLAENCNN
LQGFMIFRSF GGGTGSGFGN LILEKLLDDY GRKSKVEIDI FPSPKMLKKF GTYQIAFIWH
SLMSFLGMPN CFIALNSINL HNMLWFHFFQ KLVPCPSITP NDKESLLAVH
//
