ID TBB2_SOYBN Reviewed; 449 AA.
AC P12460;
DT 01-OCT-1989, integrated into UniProtKB/Swiss-Prot.
DT 01-OCT-1989, sequence version 1.
DT 27-MAR-2024, entry version 122.
DE RecName: Full=Tubulin beta-2 chain;
DE AltName: Full=Beta-2-tubulin;
GN Name=TUBB2;
OS Glycine max (Soybean) (Glycine hispida).
OC Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC rosids; fabids; Fabales; Fabaceae; Papilionoideae; 50 kb inversion clade;
OC NPAAA clade; indigoferoid/millettioid clade; Phaseoleae; Glycine;
OC Glycine subgen. Soja.
OX NCBI_TaxID=3847;
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX AGRICOLA=IND92001189; DOI=10.1007/BF00016154;
RA Guiltinan M.J., Ma D.-P., Barker R.F., Bustos M.M., Cyr R.J., Yadegari R.,
RA Fosket D.E.;
RT "The isolation, characterization and sequence of two divergent beta-tubulin
RT genes from soybean (Glycine max L.).";
RL Plant Mol. Biol. 10:171-184(1987).
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.
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000250|UniProtKB:P68363};
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.
CC -!- SUBCELLULAR LOCATION: Cytoplasm, cytoskeleton.
CC -!- SIMILARITY: Belongs to the tubulin family. {ECO:0000305}.
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DR EMBL; M21297; AAA34010.1; -; Genomic_DNA.
DR PIR; JA0049; JA0049.
DR AlphaFoldDB; P12460; -.
DR SMR; P12460; -.
DR STRING; 3847.P12460; -.
DR PaxDb; 3847-GLYMA03G15020-1; -.
DR ProMEX; P12460; -.
DR eggNOG; KOG1375; Eukaryota.
DR InParanoid; P12460; -.
DR Proteomes; UP000008827; 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:0003924; F:GTPase activity; IEA:InterPro.
DR GO; GO:0046872; F:metal ion binding; 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; 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; 1.
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:SF509; TUBULIN BETA-2 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.
PE 3: Inferred from homology;
KW Cytoplasm; Cytoskeleton; GTP-binding; Magnesium; Metal-binding;
KW Microtubule; Nucleotide-binding; Reference proteome.
FT CHAIN 1..449
FT /note="Tubulin beta-2 chain"
FT /id="PRO_0000048382"
FT REGION 426..449
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 427..449
FT /note="Acidic residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT BINDING 11
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000250|UniProtKB:Q13509"
FT BINDING 69
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000250|UniProtKB:P68363"
FT BINDING 69
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000250|UniProtKB:P68363"
FT BINDING 138
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000250|UniProtKB:Q13509"
FT BINDING 142
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000250|UniProtKB:Q13509"
FT BINDING 143
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000250|UniProtKB:Q13509"
FT BINDING 144
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000250|UniProtKB:Q13509"
FT BINDING 204
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000250|UniProtKB:Q13509"
FT BINDING 226
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000250|UniProtKB:Q13509"
SQ SEQUENCE 449 AA; 50628 MW; BB3FC7A6FE6BC688 CRC64;
MRESLHIQGG QCGNQIGAKF WEVVCAEHGI DPTGRYGGDS ELQLERINVY YNEASCGRFV
RRAVLMDLEP GTMDSVRSGP YGQIFRPDNF VFGQSGAGNN WAKGHYTEGA ELIDSVLDVV
RKEAENCDCL QGFQVCHSLG GGTGSGMGTL LISKIREEYP DRMMLTFSVF PSPKVSDTVV
EPYNATLSVH QLVENADESM VLDNEALYDI CFRTLKLTTP SFGDLNHLIS ATMSGVTCCL
RFPGQLNSDL RKLAVNLIPF PRLHFFMVGF APLASRGSQQ YRALSVPELT QQMWDSKNMM
CAADPRHGRY LTASAMFRGK MSTKEVDEQM INVQNKNSSY FVEWIPHNVK STVCDIPPTG
LRMASTFIGN STSIQEMFRR VSEQFTAMFR RKAFLHWYTG EGMDEMEFTE AESNMNDLVS
EYQQYQDATA DEDEYEEEEE EEEFAQHDM
//
