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Database: UniProt
Entry: H2ZPQ0_CIOSA
LinkDB: H2ZPQ0_CIOSA
Original site: H2ZPQ0_CIOSA 
ID   H2ZPQ0_CIOSA            Unreviewed;       450 AA.
AC   H2ZPQ0;
DT   18-APR-2012, integrated into UniProtKB/TrEMBL.
DT   18-APR-2012, sequence version 1.
DT   24-JAN-2024, entry version 76.
DE   RecName: Full=Tubulin alpha chain {ECO:0000256|RuleBase:RU000352};
OS   Ciona savignyi (Pacific transparent sea squirt).
OC   Eukaryota; Metazoa; Chordata; Tunicata; Ascidiacea; Phlebobranchia;
OC   Cionidae; Ciona.
OX   NCBI_TaxID=51511 {ECO:0000313|Ensembl:ENSCSAVP00000019566.1, ECO:0000313|Proteomes:UP000007875};
RN   [1] {ECO:0000313|Proteomes:UP000007875}
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RA   Birren B., Nusbaum C., Abebe A., Abouelleil A., Adekoya E., Ait-zahra M.,
RA   Allen N., Allen T., An P., Anderson M., Anderson S., Arachchi H.,
RA   Armbruster J., Bachantsang P., Baldwin J., Barry A., Bayul T.,
RA   Blitshsteyn B., Bloom T., Blye J., Boguslavskiy L., Borowsky M.,
RA   Boukhgalter B., Brunache A., Butler J., Calixte N., Calvo S., Camarata J.,
RA   Campo K., Chang J., Cheshatsang Y., Citroen M., Collymore A., Considine T.,
RA   Cook A., Cooke P., Corum B., Cuomo C., David R., Dawoe T., Degray S.,
RA   Dodge S., Dooley K., Dorje P., Dorjee K., Dorris L., Duffey N., Dupes A.,
RA   Elkins T., Engels R., Erickson J., Farina A., Faro S., Ferreira P.,
RA   Fischer H., Fitzgerald M., Foley K., Gage D., Galagan J., Gearin G.,
RA   Gnerre S., Gnirke A., Goyette A., Graham J., Grandbois E., Gyaltsen K.,
RA   Hafez N., Hagopian D., Hagos B., Hall J., Hatcher B., Heller A.,
RA   Higgins H., Honan T., Horn A., Houde N., Hughes L., Hulme W., Husby E.,
RA   Iliev I., Jaffe D., Jones C., Kamal M., Kamat A., Kamvysselis M.,
RA   Karlsson E., Kells C., Kieu A., Kisner P., Kodira C., Kulbokas E.,
RA   Labutti K., Lama D., Landers T., Leger J., Levine S., Lewis D., Lewis T.,
RA   Lindblad-toh K., Liu X., Lokyitsang T., Lokyitsang Y., Lucien O., Lui A.,
RA   Ma L.J., Mabbitt R., Macdonald J., Maclean C., Major J., Manning J.,
RA   Marabella R., Maru K., Matthews C., Mauceli E., Mccarthy M., Mcdonough S.,
RA   Mcghee T., Meldrim J., Meneus L., Mesirov J., Mihalev A., Mihova T.,
RA   Mikkelsen T., Mlenga V., Moru K., Mozes J., Mulrain L., Munson G.,
RA   Naylor J., Newes C., Nguyen C., Nguyen N., Nguyen T., Nicol R., Nielsen C.,
RA   Nizzari M., Norbu C., Norbu N., O'donnell P., Okoawo O., O'leary S.,
RA   Omotosho B., O'neill K., Osman S., Parker S., Perrin D., Phunkhang P.,
RA   Piqani B., Purcell S., Rachupka T., Ramasamy U., Rameau R., Ray V.,
RA   Raymond C., Retta R., Richardson S., Rise C., Rodriguez J., Rogers J.,
RA   Rogov P., Rutman M., Schupbach R., Seaman C., Settipalli S., Sharpe T.,
RA   Sheridan J., Sherpa N., Shi J., Smirnov S., Smith C., Sougnez C.,
RA   Spencer B., Stalker J., Stange-thomann N., Stavropoulos S., Stetson K.,
RA   Stone C., Stone S., Stubbs M., Talamas J., Tchuinga P., Tenzing P.,
RA   Tesfaye S., Theodore J., Thoulutsang Y., Topham K., Towey S., Tsamla T.,
RA   Tsomo N., Vallee D., Vassiliev H., Venkataraman V., Vinson J., Vo A.,
RA   Wade C., Wang S., Wangchuk T., Wangdi T., Whittaker C., Wilkinson J.,
RA   Wu Y., Wyman D., Yadav S., Yang S., Yang X., Yeager S., Yee E., Young G.,
RA   Zainoun J., Zembeck L., Zimmer A., Zody M., Lander E.;
RL   Submitted (AUG-2003) to the EMBL/GenBank/DDBJ databases.
RN   [2] {ECO:0000313|Ensembl:ENSCSAVP00000019566.1}
RP   IDENTIFICATION.
RG   Ensembl;
RL   Submitted (JUL-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|RuleBase:RU000352}.
CC   -!- SIMILARITY: Belongs to the tubulin family.
CC       {ECO:0000256|ARBA:ARBA00009636, ECO:0000256|RuleBase:RU000352}.
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DR   AlphaFoldDB; H2ZPQ0; -.
DR   Ensembl; ENSCSAVT00000019778.1; ENSCSAVP00000019566.1; ENSCSAVG00000011471.1.
DR   GeneTree; ENSGT00950000182825; -.
DR   Proteomes; UP000007875; Unassembled WGS sequence.
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:SF417; AT04270P-RELATED; 1.
DR   PANTHER; PTHR11588; TUBULIN; 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:UP000007875}.
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          431..450
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COMPBIAS        436..450
FT                   /note="Acidic residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ   SEQUENCE   450 AA;  50029 MW;  6CD5F8FCE2477A03 CRC64;
     QRECISIHVG QAGVQIGNAC WELFCLEHGI QPDGQMPSDK TIGGGDDSFN TFFSETGAGK
     HVPRAVFVDL EPTVVDEVRT GTYRQLFHPE QLITGKEDAA NNYARGHYTI GKEIVDLVLD
     RIRKLADQCT GLQGFLIFHS FGGGTGSGFT SLLMERLSID YGKKSKLEFA IYPAPQISTA
     VVEPYNSILT THTTLEHSDC AFMVDNEAVY DICRRNLDIE RPTYTNLNRL MGQIVSSITA
     SLRFDGALNV DLTEFQTNLV PYPRIHFPLA TYAPVISAEK AYHEQLSVSE ITNACFEPAN
     QMVKCDPRHG KYMACCMLYR GDVVPKDVNA AIATIKTKRT IQFVDWCPTG FKVGINYQPP
     TVVPGGDLAK VQRAVCMLSN TTAIAEAWAR LDHKFDLMYA KRAFVHWYVG EGMEEGEFSE
     AREDLAALEK DYEEVGVDSV EAEDEDEGEE
//
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