ID H0SVJ1_9BRAD Unreviewed; 589 AA.
AC H0SVJ1;
DT 22-FEB-2012, integrated into UniProtKB/TrEMBL.
DT 22-FEB-2012, sequence version 1.
DT 27-MAR-2024, entry version 57.
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 Name=ilvI {ECO:0000313|EMBL:CCD98218.1};
GN ORFNames=BRAS3809_1720016 {ECO:0000313|EMBL:CCD98218.1};
OS Bradyrhizobium sp. STM 3809.
OC Bacteria; Pseudomonadota; Alphaproteobacteria; Hyphomicrobiales;
OC Nitrobacteraceae; Bradyrhizobium.
OX NCBI_TaxID=551936 {ECO:0000313|EMBL:CCD98218.1, ECO:0000313|Proteomes:UP000004098};
RN [1] {ECO:0000313|Proteomes:UP000004098}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=STM 3809 {ECO:0000313|Proteomes:UP000004098};
RX PubMed=24704842; DOI=10.3390/genes3010035;
RA Mornico D., Miche L., Bena G., Nouwen N., Vermeglio A., Vallenet D.,
RA Smith A.A., Giraud E., Medigue C., Moulin L.;
RT "Comparative genomics of aeschynomene symbionts: insights into the
RT ecological lifestyle of nod-independent photosynthetic bradyrhizobia.";
RL Genes (Basel) 3:35-61(2011).
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}.
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:CCD98218.1}.
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DR EMBL; CAFJ01000082; CCD98218.1; -; Genomic_DNA.
DR RefSeq; WP_008960828.1; NZ_CAFJ01000082.1.
DR AlphaFoldDB; H0SVJ1; -.
DR OrthoDB; 4494979at2; -.
DR UniPathway; UPA00047; UER00055.
DR UniPathway; UPA00049; UER00059.
DR Proteomes; UP000004098; Unassembled WGS sequence.
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, ECO:0000313|EMBL:CCD98218.1}.
FT DOMAIN 11..127
FT /note="Thiamine pyrophosphate enzyme N-terminal TPP-
FT binding"
FT /evidence="ECO:0000259|Pfam:PF02776"
FT DOMAIN 202..337
FT /note="Thiamine pyrophosphate enzyme central"
FT /evidence="ECO:0000259|Pfam:PF00205"
FT DOMAIN 401..548
FT /note="Thiamine pyrophosphate enzyme TPP-binding"
FT /evidence="ECO:0000259|Pfam:PF02775"
SQ SEQUENCE 589 AA; 64022 MW; 24A1AB56DA493F8B CRC64;
MTDKSHDPNQ MTGAAMIVRA LIDHGVQHIF GYPGGAVLPI YDEIFQQSEV EHILVRHEQG
AGHAAEGYAR STGKPGVVLV TSGPGATNMV TPLADAMMDS IPLVCITGQV PTHLIGNDAF
QECDTVGITR PCTKHNWLVR NVNDLAKVLH EAFYVATSGR PGPVVVDVPK DVQFATGTYH
PPRKSDVHVS YAPRVKGDAM QIRKAVALLA SAKRPVIYSG GGVINSGTEA SRLLRELVEV
TGFPITSTLM GLGAYPASGT NWLGMLGMHG TYEANMTMHD CDVMLCVGAR FDDRITGRTD
AFSPNSKKIH IDIDPSSINK NIRVDVPILG DCGDVLADIL QVFKAEAKKP DIKAWWQQIA
TWRARNSLAY KPNRDVIMPQ YAIQRLFELT RGRDTYITTE VGQHQMWAAQ FYGFEEPHRW
MTSGGLGTMG YGLPAAIGVQ VAHPDSLVID IGGDASVQMT MQEMSTAVQY ELPVKIFILN
NQYMGMVRQW QQLLHGNRLS HSYSEALPDF VKLAEAYGGV GLQVSKPGDL DGAIKEMISV
RKPVLFDCRV AALENCFPMI PSGKAHNEMI LPAEASDSAA AFAGGKALV
//
