ID X6NNZ2_RETFI Unreviewed; 452 AA.
AC X6NNZ2;
DT 11-JUN-2014, integrated into UniProtKB/TrEMBL.
DT 11-JUN-2014, sequence version 1.
DT 24-JAN-2024, entry version 38.
DE RecName: Full=Tubulin alpha chain {ECO:0000256|RuleBase:RU000352};
GN ORFNames=RFI_09738 {ECO:0000313|EMBL:ETO27394.1};
OS Reticulomyxa filosa.
OC Eukaryota; Sar; Rhizaria; Retaria; Foraminifera; Monothalamids;
OC Reticulomyxidae; Reticulomyxa.
OX NCBI_TaxID=46433 {ECO:0000313|EMBL:ETO27394.1, ECO:0000313|Proteomes:UP000023152};
RN [1] {ECO:0000313|EMBL:ETO27394.1, ECO:0000313|Proteomes:UP000023152}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX PubMed=24332546;
RA Glockner G., Hulsmann N., Schleicher M., Noegel A.A., Eichinger L.,
RA Gallinger C., Pawlowski J., Sierra R., Euteneuer U., Pillet L.,
RA Moustafa A., Platzer M., Groth M., Szafranski K., Schliwa M.;
RT "The Genome of the Foraminiferan Reticulomyxa filosa.";
RL Curr. Biol. 0:0-0(2013).
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|ARBA:ARBA00011747,
CC ECO:0000256|RuleBase:RU000352}.
CC -!- SIMILARITY: Belongs to the tubulin family.
CC {ECO:0000256|ARBA:ARBA00009636, ECO:0000256|RuleBase:RU000352}.
CC -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC whole genome shotgun (WGS) entry which is preliminary data.
CC {ECO:0000313|EMBL:ETO27394.1}.
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DR EMBL; ASPP01007287; ETO27394.1; -; Genomic_DNA.
DR AlphaFoldDB; X6NNZ2; -.
DR EnsemblProtists; ETO27394; ETO27394; RFI_09738.
DR Proteomes; UP000023152; 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-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.
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:UP000023152}.
FT DOMAIN 45..235
FT /note="Tubulin/FtsZ GTPase"
FT /evidence="ECO:0000259|SMART:SM00864"
FT DOMAIN 237..385
FT /note="Tubulin/FtsZ 2-layer sandwich"
FT /evidence="ECO:0000259|SMART:SM00865"
SQ SEQUENCE 452 AA; 51169 MW; B15427EC8FEA9055 CRC64;
MREIITIQVG QAGIQVGNAV WEQYCAEHNI STAGKQQRVT KDNSFKVFFE ETSSGQFVDL
EPDVIDNMKS GPLGSLFDKD FLLSGKEDSA NIFSRGCFLG KQILDKMDDQ LRKLADNCDN
LMGFMVTHSI GGGTGSGVGA LIFEGFNLYY KKKVRVGCSI FPSYSISSSV VEPYNALFAV
GSLLDFTDIV LVFDNESMYN ICQRNLHIAK PDVSNVNRLI AKVMSSMTVS LRFGGELNAS
LDELQMNLIP FPRLHFLTTG MSPIVSKMDV NTISNDVQTI TDECFKPTNW LVHYNSFDPM
DDKYMSIVLN YRGNITSKEA NTSIQWLKKN DKVRLVEWCP TGFKIGLNDI PATILEQDDI
GAFSKNAVMI ANNIGISRMF NERITRKFDL MYNQRAFVHW YLGYGRRERQ FGITRQDLGY
LERDYLDVLS EQITDEAVDD YVNDDNNDTN YY
//