ID A0A2Y9TGN0_PHYMC Unreviewed; 420 AA.
AC A0A2Y9TGN0;
DT 12-SEP-2018, integrated into UniProtKB/TrEMBL.
DT 12-SEP-2018, sequence version 1.
DT 27-MAR-2024, entry version 23.
DE RecName: Full=Tubulin beta chain {ECO:0000256|RuleBase:RU000352};
GN Name=TUBB4A {ECO:0000313|RefSeq:XP_023990091.1};
OS Physeter macrocephalus (Sperm whale) (Physeter catodon).
OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia;
OC Eutheria; Laurasiatheria; Artiodactyla; Whippomorpha; Cetacea; Odontoceti;
OC Physeteridae; Physeter.
OX NCBI_TaxID=9755 {ECO:0000313|Proteomes:UP000248484, ECO:0000313|RefSeq:XP_023990091.1};
RN [1] {ECO:0000313|RefSeq:XP_023990091.1}
RP IDENTIFICATION.
RC TISSUE=Muscle {ECO:0000313|RefSeq:XP_023990091.1};
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|RuleBase:RU000352}.
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 -!- SUBCELLULAR LOCATION: Cytoplasm, cytoskeleton
CC {ECO:0000256|ARBA:ARBA00004245}.
CC -!- SIMILARITY: Belongs to the tubulin family.
CC {ECO:0000256|ARBA:ARBA00009636, ECO:0000256|RuleBase:RU000352}.
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DR RefSeq; XP_023990091.1; XM_024134323.2.
DR AlphaFoldDB; A0A2Y9TGN0; -.
DR Proteomes; UP000248484; 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:0003924; F:GTPase activity; IEA:InterPro.
DR GO; GO:0005200; F:structural constituent of cytoskeleton; IEA:InterPro.
DR GO; GO:0007017; P:microtubule-based process; IEA:InterPro.
DR CDD; cd02187; beta_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; 2.
DR InterPro; IPR013838; Beta-tubulin_BS.
DR InterPro; IPR002453; Beta_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:SF253; TUBULIN BETA-4A CHAIN; 1.
DR Pfam; PF00091; Tubulin; 1.
DR Pfam; PF03953; Tubulin_C; 1.
DR PRINTS; PR01163; BETATUBULIN.
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.
DR PROSITE; PS00228; TUBULIN_B_AUTOREG; 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 Isopeptide bond {ECO:0000256|ARBA:ARBA00022499};
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:UP000248484}.
FT DOMAIN 47..220
FT /note="Tubulin/FtsZ GTPase"
FT /evidence="ECO:0000259|SMART:SM00864"
FT DOMAIN 222..359
FT /note="Tubulin/FtsZ 2-layer sandwich"
FT /evidence="ECO:0000259|SMART:SM00865"
SQ SEQUENCE 420 AA; 47004 MW; 10BDC54FFA4FF939 CRC64;
MREIVHLQAG QCGNQIGAKF WEVISDEHGI DPTGTYHGDS DLQLERINVY YNEATGGNYV
PRAVLVDLEP GTMDSVRSGP FGQIFRPDNF VFGQSGAGNN WSCDCLQGFQ LTHSLGGGTG
SGMGTLLISK IREEFPDRIM NTFSVVPSPK VSDTVVEPYN ATLSVHQLVE NTDETYCIDN
EALYDICFRT LKLTTPTYGD LNHLVSATMS GVTTCLRFPG QLNADLRKLA VNMVPFPRLH
FFMPGFAPLT SRGSQQYRAL TVPELTQQMF DAKNMMAACD PRHGRYLTVA AVFRGRMSMK
EVDEQMLSVQ SKNSSYFVEW IPNNVKTAVC DIPPRGLKMA ATFIGNSTAI QELFKRISEQ
FTAMFRRKAF LHWYTGEGMD EMEFTEAESN MNDLVSEYQQ YQDATAEEGE FEEEAEEEVA
//
