ID A0A0A1U0Z9_ENTIV Unreviewed; 451 AA.
AC A0A0A1U0Z9;
DT 04-FEB-2015, integrated into UniProtKB/TrEMBL.
DT 04-FEB-2015, sequence version 1.
DT 27-MAR-2024, entry version 37.
DE RecName: Full=Tubulin alpha chain {ECO:0000256|RuleBase:RU000352};
GN ORFNames=EIN_171480 {ECO:0000313|EMBL:ELP84573.1};
OS Entamoeba invadens IP1.
OC Eukaryota; Amoebozoa; Evosea; Archamoebae; Mastigamoebida; Entamoebidae;
OC Entamoeba.
OX NCBI_TaxID=370355 {ECO:0000313|EMBL:ELP84573.1, ECO:0000313|Proteomes:UP000014680};
RN [1] {ECO:0000313|EMBL:ELP84573.1, ECO:0000313|Proteomes:UP000014680}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=IP1 {ECO:0000313|EMBL:ELP84573.1,
RC ECO:0000313|Proteomes:UP000014680};
RA Zafar N., Inman J., Hall N., Lorenzi H., Caler E.;
RL Submitted (OCT-2012) to the EMBL/GenBank/DDBJ databases.
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 -!- 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; KB207112; ELP84573.1; -; Genomic_DNA.
DR RefSeq; XP_004183919.1; XM_004183871.1.
DR AlphaFoldDB; A0A0A1U0Z9; -.
DR EnsemblProtists; ELP84573; ELP84573; EIN_171480.
DR GeneID; 14883422; -.
DR KEGG; eiv:EIN_171480; -.
DR VEuPathDB; AmoebaDB:EIN_171480; -.
DR OrthoDB; 1206011at2759; -.
DR Proteomes; UP000014680; Unassembled WGS sequence.
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; IPR013838; Beta-tubulin_BS.
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:SF239; 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.
DR PROSITE; PS00228; TUBULIN_B_AUTOREG; 1.
PE 3: Inferred from homology;
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:UP000014680}.
FT DOMAIN 54..250
FT /note="Tubulin/FtsZ GTPase"
FT /evidence="ECO:0000259|SMART:SM00864"
FT DOMAIN 252..398
FT /note="Tubulin/FtsZ 2-layer sandwich"
FT /evidence="ECO:0000259|SMART:SM00865"
SQ SEQUENCE 451 AA; 50258 MW; E6CCB0C34EB1353E CRC64;
MREIISINIG QAGCQLGDQC WELFCLEHGI NPDGTCTQDK QSRQSVSTIA DSAYNTFFQE
VQNNRYVPRA IFVDTEPTVI DTIKTGEYSQ LYHPQQLLSG MQDASSNFSL AKFTYGELID
QTMEAVRKIA EGCTGLQGFF IYNSVGGGTG SGFTAALCEK LADKYRKKTK LNTVIWPSPE
LSSGIVEPYN AVLNTHAMMD LVNCTFMLDN ESIYKVCQKN LGINSPSYIH LNQLIAQSMS
LITASLRFEG TLNVDLNEFP TNLVPFPRNH FAMMSYSPIV TAEKAQRQTL DVYELTSGLF
EPHNLMITVD DIAKGKFMTC CMMYRGDVAP HDVSLAINKV KSAYNLPLVD FCPCNFKYGV
NNQPTTSVPG SCFTATKRSA CMLANNTAMC QVFGKINKSF DLMFGKRAFV HHFVGQGMEE
NEFTDARQDL FELESEYANL SIDNADMTNL Q
//
