ID Q8VXD0_TOBAC Unreviewed; 451 AA.
AC Q8VXD0;
DT 01-MAR-2002, integrated into UniProtKB/TrEMBL.
DT 01-MAR-2002, sequence version 1.
DT 27-MAR-2024, entry version 120.
DE RecName: Full=Tubulin alpha chain {ECO:0000256|RuleBase:RU000352};
GN Name=tubA2 {ECO:0000313|EMBL:CAD13177.1};
GN Synonyms=LOC107781962 {ECO:0000313|RefSeq:XP_016458267.1},
GN LOC107823267 {ECO:0000313|RefSeq:XP_016505384.1};
OS Nicotiana tabacum (Common tobacco).
OC Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC asterids; lamiids; Solanales; Solanaceae; Nicotianoideae; Nicotianeae;
OC Nicotiana.
OX NCBI_TaxID=4097 {ECO:0000313|EMBL:CAD13177.1};
RN [1] {ECO:0000313|EMBL:CAD13177.1}
RP NUCLEOTIDE SEQUENCE.
RA Breviario D., Linss M., Nick P.;
RT "alpha-tubulins from tobacco : gene cloning and expression studies.";
RL Submitted (NOV-2001) to the EMBL/GenBank/DDBJ databases.
RN [2] {ECO:0000313|Proteomes:UP000084051}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=cv. TN90 {ECO:0000313|Proteomes:UP000084051};
RX PubMed=24807620; DOI=10.1038/ncomms4833;
RA Sierro N., Battey J.N., Ouadi S., Bakaher N., Bovet L., Willig A.,
RA Goepfert S., Peitsch M.C., Ivanov N.V.;
RT "The tobacco genome sequence and its comparison with those of tomato and
RT potato.";
RL Nat. Commun. 5:3833-3833(2014).
RN [3] {ECO:0000313|RefSeq:XP_016458267.1, ECO:0000313|RefSeq:XP_016505384.1}
RP IDENTIFICATION.
RG RefSeq;
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|ARBA:ARBA00034296,
CC 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 -!- 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; AJ421412; CAD13177.1; -; mRNA.
DR RefSeq; NP_001312257.1; NM_001325328.1.
DR RefSeq; XP_016458267.1; XM_016602781.1.
DR RefSeq; XP_016505384.1; XM_016649898.1.
DR STRING; 4097.Q8VXD0; -.
DR PaxDb; 4097-Q8VXD0; -.
DR GeneID; 107781962; -.
DR GeneID; 107823267; -.
DR KEGG; nta:107781962; -.
DR KEGG; nta:107823267; -.
DR OrthoDB; 1206011at2759; -.
DR Proteomes; UP000084051; Unplaced.
DR GO; GO:0005737; C:cytoplasm; IBA:GO_Central.
DR GO; GO:0005874; C:microtubule; IBA:GO_Central.
DR GO; GO:0005525; F:GTP binding; IBA:GO_Central.
DR GO; GO:0016787; F:hydrolase activity; IEA:UniProtKB-KW.
DR GO; GO:0005200; F:structural constituent of cytoskeleton; IBA:GO_Central.
DR GO; GO:0000226; P:microtubule cytoskeleton organization; IBA:GO_Central.
DR GO; GO:0000278; P:mitotic cell cycle; IBA:GO_Central.
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:SF513; TUBULIN ALPHA 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 2: Evidence at transcript level;
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:UP000084051}.
FT DOMAIN 49..246
FT /note="Tubulin/FtsZ GTPase"
FT /evidence="ECO:0000259|SMART:SM00864"
FT DOMAIN 248..393
FT /note="Tubulin/FtsZ 2-layer sandwich"
FT /evidence="ECO:0000259|SMART:SM00865"
FT REGION 432..451
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 434..451
FT /note="Acidic residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ SEQUENCE 451 AA; 49735 MW; 9900D60842391D51 CRC64;
MRECISIHIG QAGIQVGNAC WELYCLEHGI QPDGQMPGDK TIGGGDDAFN TFFSETGAGK
HVPRAVFVDL EPTVIDEVRT GTYRQLFHPE QLISGKEDAA NNFARGHYTI GKEIVDLCLD
RIRKLADNCT GLQGFLVFNA VGGGTGSGLG SLLLERLSVD YGKKSKLGFT IYPSPQVSTS
VVEPYNSVLS THSLLEHTDV AILLDNEAIY DICRRSLDIE RPTYTNLNRL ISQVISSLTA
SLRFDGALNV DVNEFQTNLV PYPRIHFMLS SYAPVISAEK AYHEQLSVAE ITNSAFEPSS
MMVKCDPRHG KYMACCLMFR GDVVPKDVNA AVATIKTKRT IQFVDWCPTG FKCGINYQPP
TVVPGGDLAK VQRAVCMISN STSVAEVFSR IDHKFDLMYA KRAFVHWYVG EGMEEGEFSE
AREDLAALEK DYEEVGAEVD DEEGGDEGDE Y
//
