ID E8TG94_MESCW Unreviewed; 593 AA.
AC E8TG94;
DT 05-APR-2011, integrated into UniProtKB/TrEMBL.
DT 05-APR-2011, sequence version 1.
DT 27-MAR-2024, entry version 75.
DE RecName: Full=Acetolactate synthase {ECO:0000256|ARBA:ARBA00013145, ECO:0000256|RuleBase:RU003591};
DE EC=2.2.1.6 {ECO:0000256|ARBA:ARBA00013145, ECO:0000256|RuleBase:RU003591};
GN OrderedLocusNames=Mesci_3241 {ECO:0000313|EMBL:ADV12364.1};
OS Mesorhizobium ciceri biovar biserrulae (strain HAMBI 2942 / LMG 23838 /
OS WSM1271).
OC Bacteria; Pseudomonadota; Alphaproteobacteria; Hyphomicrobiales;
OC Phyllobacteriaceae; Mesorhizobium.
OX NCBI_TaxID=765698 {ECO:0000313|EMBL:ADV12364.1, ECO:0000313|Proteomes:UP000007471};
RN [1] {ECO:0000313|Proteomes:UP000007471}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=HAMBI 2942 / LMG 23838 / WSM1271
RC {ECO:0000313|Proteomes:UP000007471};
RA Lucas S., Copeland A., Lapidus A., Cheng J.-F., Goodwin L., Pitluck S.,
RA Teshima H., Detter J.C., Han C., Tapia R., Land M., Hauser L., Kyrpides N.,
RA Ivanova N., Nandasena K., Reeve W.G., Howieson J.G., O'Hara G.,
RA Tiwari R.P., Woyke T.;
RT "Complete sequence of chromosome of Mesorhizobium ciceri bv. biserrulae
RT WSM1271.";
RL Submitted (JAN-2011) to the EMBL/GenBank/DDBJ databases.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=H(+) + 2 pyruvate = (2S)-2-acetolactate + CO2;
CC Xref=Rhea:RHEA:25249, ChEBI:CHEBI:15361, ChEBI:CHEBI:15378,
CC ChEBI:CHEBI:16526, ChEBI:CHEBI:58476; EC=2.2.1.6;
CC Evidence={ECO:0000256|RuleBase:RU003591};
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000256|RuleBase:RU003591};
CC Note=Binds 1 Mg(2+) ion per subunit. {ECO:0000256|RuleBase:RU003591};
CC -!- COFACTOR:
CC Name=thiamine diphosphate; Xref=ChEBI:CHEBI:58937;
CC Evidence={ECO:0000256|RuleBase:RU003591};
CC Note=Binds 1 thiamine pyrophosphate per subunit.
CC {ECO:0000256|RuleBase:RU003591};
CC -!- PATHWAY: Amino-acid biosynthesis; L-isoleucine biosynthesis; L-
CC isoleucine from 2-oxobutanoate: step 1/4.
CC {ECO:0000256|ARBA:ARBA00004974, ECO:0000256|RuleBase:RU003591}.
CC -!- PATHWAY: Amino-acid biosynthesis; L-valine biosynthesis; L-valine from
CC pyruvate: step 1/4. {ECO:0000256|ARBA:ARBA00005025,
CC ECO:0000256|RuleBase:RU003591}.
CC -!- SIMILARITY: Belongs to the TPP enzyme family.
CC {ECO:0000256|ARBA:ARBA00007812, ECO:0000256|RuleBase:RU003591}.
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DR EMBL; CP002447; ADV12364.1; -; Genomic_DNA.
DR RefSeq; WP_013531047.1; NC_014923.1.
DR RefSeq; YP_004142414.1; NC_014923.1.
DR AlphaFoldDB; E8TG94; -.
DR STRING; 765698.Mesci_3241; -.
DR KEGG; mci:Mesci_3241; -.
DR PATRIC; fig|765698.3.peg.3736; -.
DR eggNOG; COG0028; Bacteria.
DR HOGENOM; CLU_013748_1_2_5; -.
DR OrthoDB; 4494979at2; -.
DR UniPathway; UPA00047; UER00055.
DR UniPathway; UPA00049; UER00059.
DR Proteomes; UP000007471; Chromosome.
DR GO; GO:0003984; F:acetolactate synthase activity; IEA:UniProtKB-EC.
DR GO; GO:0050660; F:flavin adenine dinucleotide binding; IEA:InterPro.
DR GO; GO:0000287; F:magnesium ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0030976; F:thiamine pyrophosphate binding; IEA:UniProtKB-UniRule.
DR GO; GO:0009097; P:isoleucine biosynthetic process; IEA:UniProtKB-UniPathway.
DR GO; GO:0009099; P:valine biosynthetic process; IEA:UniProtKB-UniPathway.
DR CDD; cd02015; TPP_AHAS; 1.
DR CDD; cd07035; TPP_PYR_POX_like; 1.
DR Gene3D; 3.40.50.970; -; 2.
DR Gene3D; 3.40.50.1220; TPP-binding domain; 1.
DR InterPro; IPR012846; Acetolactate_synth_lsu.
DR InterPro; IPR039368; AHAS_TPP.
DR InterPro; IPR029035; DHS-like_NAD/FAD-binding_dom.
DR InterPro; IPR029061; THDP-binding.
DR InterPro; IPR012000; Thiamin_PyroP_enz_cen_dom.
DR InterPro; IPR012001; Thiamin_PyroP_enz_TPP-bd_dom.
DR InterPro; IPR000399; TPP-bd_CS.
DR InterPro; IPR045229; TPP_enz.
DR InterPro; IPR011766; TPP_enzyme_TPP-bd.
DR NCBIfam; TIGR00118; acolac_lg; 1.
DR PANTHER; PTHR18968:SF13; ACETOLACTATE SYNTHASE CATALYTIC SUBUNIT, MITOCHONDRIAL; 1.
DR PANTHER; PTHR18968; THIAMINE PYROPHOSPHATE ENZYMES; 1.
DR Pfam; PF02775; TPP_enzyme_C; 1.
DR Pfam; PF00205; TPP_enzyme_M; 1.
DR Pfam; PF02776; TPP_enzyme_N; 1.
DR SUPFAM; SSF52467; DHS-like NAD/FAD-binding domain; 1.
DR SUPFAM; SSF52518; Thiamin diphosphate-binding fold (THDP-binding); 2.
DR PROSITE; PS00187; TPP_ENZYMES; 1.
PE 3: Inferred from homology;
KW Amino-acid biosynthesis {ECO:0000256|ARBA:ARBA00022605,
KW ECO:0000256|RuleBase:RU003591};
KW Branched-chain amino acid biosynthesis {ECO:0000256|ARBA:ARBA00023304,
KW ECO:0000256|RuleBase:RU003591}; Magnesium {ECO:0000256|RuleBase:RU003591};
KW Metal-binding {ECO:0000256|RuleBase:RU003591};
KW Thiamine pyrophosphate {ECO:0000256|RuleBase:RU003591};
KW Transferase {ECO:0000256|RuleBase:RU003591}.
FT DOMAIN 11..127
FT /note="Thiamine pyrophosphate enzyme N-terminal TPP-
FT binding"
FT /evidence="ECO:0000259|Pfam:PF02776"
FT DOMAIN 201..337
FT /note="Thiamine pyrophosphate enzyme central"
FT /evidence="ECO:0000259|Pfam:PF00205"
FT DOMAIN 402..549
FT /note="Thiamine pyrophosphate enzyme TPP-binding"
FT /evidence="ECO:0000259|Pfam:PF02775"
SQ SEQUENCE 593 AA; 64930 MW; 56D26C9172A0296E CRC64;
MSNGQNERRE MTGAEMVVQA LKDNGVQHVF GYPGGAVLPI YDEIFQQDEV EHILVRHEQG
AGHAAEGYAR STGKAGVMLV TSGPGATNAV TPLQDALMDS IPLVCLTGQV PTSLIGSDAF
QECDTVGITR PCTKHNWLVK DVNELAATIH EAFHVATTGR PGPVVVDIPK DVQFAKGFYV
PPQIAPRTSY QPKVQGDLEK IKAAVELMAG AKKPIIYSGG GVINSGPEAS HLLRELVDLT
GFPITSTLMG LGAYPASGKN WMGMLGMHGT YEANMAMHDC DVMICIGARF DDRITGRLTA
FSPNSKKIHI DIDPSSINKN VHTEVPIIGD VGRVLEDMVR LWRASAKADK KALYPWWEQI
AKWRARDSLA YKMNNDVIMP QYAIERLYEL TKGMDTYITT EVGQHQMWAA QHYRVEKPNR
WMTSGGLGTM GYGLPAALGV QIAHPDALVI DIAGDASVQM TMQEMSAAVQ HNAPIKIFIL
NNQYMGMVRQ WQQLLHGNRL SHSYTEAMPD FVKLAEAYGG HGIRCEKPDE LDDAIKEMIS
VRKPVLFDCR VATLANCFPM IPSGKAHNEM LLPDEATDEA VANAIDAKGR ELV
//
