ID M0QCP2_9ACTN Unreviewed; 653 AA.
AC M0QCP2;
DT 03-APR-2013, integrated into UniProtKB/TrEMBL.
DT 03-APR-2013, sequence version 1.
DT 27-MAR-2024, entry version 55.
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=ilvB {ECO:0000313|EMBL:GAC66335.1};
GN ORFNames=GS4_02_00450 {ECO:0000313|EMBL:GAC66335.1};
OS Gordonia soli NBRC 108243.
OC Bacteria; Actinomycetota; Actinomycetes; Mycobacteriales; Gordoniaceae;
OC Gordonia.
OX NCBI_TaxID=1223545 {ECO:0000313|EMBL:GAC66335.1, ECO:0000313|Proteomes:UP000011666};
RN [1] {ECO:0000313|EMBL:GAC66335.1, ECO:0000313|Proteomes:UP000011666}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=NBRC 108243 {ECO:0000313|EMBL:GAC66335.1,
RC ECO:0000313|Proteomes:UP000011666};
RA Isaki-Nakamura S., Hosoyama A., Tsuchikane K., Ando Y., Baba S., Ohji S.,
RA Hamada M., Tamura T., Yamazoe A., Yamazaki S., Fujita N.;
RT "Whole genome shotgun sequence of Gordonia soli NBRC 108243.";
RL Submitted (JAN-2013) 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|ARBA:ARBA00000673,
CC 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:GAC66335.1}.
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DR EMBL; BANX01000002; GAC66335.1; -; Genomic_DNA.
DR RefSeq; WP_007616462.1; NZ_BANX01000002.1.
DR AlphaFoldDB; M0QCP2; -.
DR STRING; 1223545.GS4_02_00450; -.
DR eggNOG; COG0028; Bacteria.
DR OrthoDB; 4494979at2; -.
DR UniPathway; UPA00047; UER00055.
DR UniPathway; UPA00049; UER00059.
DR Proteomes; UP000011666; 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}; FAD {ECO:0000256|ARBA:ARBA00022827};
KW Flavoprotein {ECO:0000256|ARBA:ARBA00022630};
KW Magnesium {ECO:0000256|RuleBase:RU003591};
KW Metal-binding {ECO:0000256|RuleBase:RU003591};
KW Reference proteome {ECO:0000313|Proteomes:UP000011666};
KW Thiamine pyrophosphate {ECO:0000256|RuleBase:RU003591};
KW Transferase {ECO:0000256|RuleBase:RU003591}.
FT DOMAIN 44..159
FT /note="Thiamine pyrophosphate enzyme N-terminal TPP-
FT binding"
FT /evidence="ECO:0000259|Pfam:PF02776"
FT DOMAIN 233..368
FT /note="Thiamine pyrophosphate enzyme central"
FT /evidence="ECO:0000259|Pfam:PF00205"
FT DOMAIN 433..586
FT /note="Thiamine pyrophosphate enzyme TPP-binding"
FT /evidence="ECO:0000259|Pfam:PF02775"
FT REGION 1..31
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT REGION 631..653
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ SEQUENCE 653 AA; 69115 MW; 129E12015E83A7E7 CRC64;
MSAPTARTDA ADRAARTGDG RTQSPAAGNL RAVGQHTVAP ERVSGAQSVV RSLEELGVDV
VFGIPGGAVL PVYDPLLDSQ KVRHVLVRHE QGAGHAATGY AQVTGRAGVC MATSGPGATN
LVTPLADAQM DSVPVVAITG QVGKALIGTD AFQEADISGI TMPITKHNFL VSNGADIPRV
MAEAFHIAES GRPGAVLVDI PKDVLQSQTT FSWPPQIDLP GYRPVTKPHG KQVREAARLI
NAASAPVLYV GGGVIKANAT EELRELAELT GIPVVTTLMA RGAFPDSHEQ HLGMPGMHGT
VAAVAGLQRS DLLITLGARF DDRVTGQLSS FAPNAKVIHA DIDPAEIGKN RVADVPIVGD
CKAVIADLTE TLRNERATSG TSPDISEWWK YLDGIRSTYP LSYDRQADGS LSPEYVISAI
GKAGGPDAVY CAGVGQHQMW AAQFISYEKP RTWLNSGGLG TMGYAVPAAM GAKMGAPETE
VWAIDGDGCF QMTNQELATC AIEGIPIKVA LINNGNLGMV RQWQTLFYEE RYSNTDLATH
SRRIPDFVKL AEALGCAAFR AETEEEVDEV IAKAREIHDR PVVIDFIVGA DAQVWPMVAA
GTGNDEIMAA RDIRPLFDDD ESASGPVEIH QTMNAEQSVA KAPADASAEK GNR
//
