ID A0A3Q3VTM3_MOLML Unreviewed; 454 AA.
AC A0A3Q3VTM3;
DT 10-APR-2019, integrated into UniProtKB/TrEMBL.
DT 10-APR-2019, sequence version 1.
DT 27-MAR-2024, entry version 23.
DE RecName: Full=Tubulin alpha chain {ECO:0000256|RuleBase:RU000352};
OS Mola mola (Ocean sunfish) (Tetraodon mola).
OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi;
OC Actinopterygii; Neopterygii; Teleostei; Neoteleostei; Acanthomorphata;
OC Eupercaria; Tetraodontiformes; Molidae; Mola.
OX NCBI_TaxID=94237 {ECO:0000313|Ensembl:ENSMMOP00000004743.1, ECO:0000313|Proteomes:UP000261620};
RN [1] {ECO:0000313|Ensembl:ENSMMOP00000004743.1}
RP IDENTIFICATION.
RG Ensembl;
RL Submitted (NOV-2023) 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|ARBA:ARBA00011747,
CC 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 AlphaFoldDB; A0A3Q3VTM3; -.
DR STRING; 94237.ENSMMOP00000004743; -.
DR Ensembl; ENSMMOT00000004828.1; ENSMMOP00000004743.1; ENSMMOG00000003795.1.
DR OMA; ICICREC; -.
DR Proteomes; UP000261620; Unplaced.
DR GO; GO:0005737; C:cytoplasm; 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 CDD; cd02186; alpha_tubulin; 1.
DR Gene3D; 1.10.287.600; Helix hairpin bin; 1.
DR Gene3D; 3.30.1330.20; Tubulin/FtsZ, C-terminal domain; 1.
DR Gene3D; 3.40.50.1440; Tubulin/FtsZ, GTPase domain; 1.
DR InterPro; IPR002452; Alpha_tubulin.
DR InterPro; IPR008280; Tub_FtsZ_C.
DR InterPro; IPR000217; Tubulin.
DR InterPro; IPR037103; Tubulin/FtsZ-like_C.
DR InterPro; IPR018316; Tubulin/FtsZ_2-layer-sand-dom.
DR InterPro; IPR036525; Tubulin/FtsZ_GTPase_sf.
DR InterPro; IPR023123; Tubulin_C.
DR InterPro; IPR017975; Tubulin_CS.
DR InterPro; IPR003008; Tubulin_FtsZ_GTPase.
DR PANTHER; PTHR11588; TUBULIN; 1.
DR PANTHER; PTHR11588:SF417; TUBULIN ALPHA-4 CHAIN; 1.
DR Pfam; PF00091; Tubulin; 1.
DR Pfam; PF03953; Tubulin_C; 1.
DR PRINTS; PR01162; ALPHATUBULIN.
DR PRINTS; PR01161; TUBULIN.
DR SMART; SM00864; Tubulin; 1.
DR SMART; SM00865; Tubulin_C; 1.
DR SUPFAM; SSF55307; Tubulin C-terminal domain-like; 1.
DR SUPFAM; SSF52490; Tubulin nucleotide-binding domain-like; 1.
DR PROSITE; PS00227; TUBULIN; 1.
PE 3: Inferred from homology;
KW Cytoplasm {ECO:0000256|ARBA:ARBA00022490};
KW Cytoskeleton {ECO:0000256|ARBA:ARBA00023212};
KW GTP-binding {ECO:0000256|ARBA:ARBA00023134, ECO:0000256|RuleBase:RU000352};
KW Hydrolase {ECO:0000256|ARBA:ARBA00022801};
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:UP000261620}.
FT DOMAIN 49..243
FT /note="Tubulin/FtsZ GTPase"
FT /evidence="ECO:0000259|SMART:SM00864"
FT DOMAIN 245..390
FT /note="Tubulin/FtsZ 2-layer sandwich"
FT /evidence="ECO:0000259|SMART:SM00865"
SQ SEQUENCE 454 AA; 50447 MW; CD899033E0AC747A CRC64;
QRECISVHVG QAGSQIGNAC WELYCLEHGI QPDGQMPSDK TIGGGDDSFN TFFSETGAGK
HVPRAVFVDL EPTVIDEVRT GTYRQLFHPE QLITGKEDAA NNYARGHYTI GKEIIDLVLD
RIRKLCTGLQ GFLIFHSFGG GTGSGFTSLL MERLSVDYGK KSKLEFAVYP APQVSTAVVE
PYNSILTTHT TLEHSDCAFM VDNEAIYDIC RRNLDIERPT YTNLNRLIGQ IVSSITASLR
FDGALNVDLT EFQTNLVPYP RIHFPLATYA PVISAEKAYH EQLSVAEITN ACFEPANQMV
KCDPRHGKYM ACCLLYRGDV VPKDVNSAIA TIKTKRSIQF VDWCPTGFKV GINYQPPTVV
PGGDLAKVQR AVCMLSNTTA IAEAWARLDH KFDLMYAKRA FVHWYVGEGM EEGEFSEARE
DMAALEKDYE EVPLSSYLTH LSDLSSSSPL YISD
//
