ID A0A1Q5GYM4_9ACTN Unreviewed; 618 AA.
AC A0A1Q5GYM4;
DT 12-APR-2017, integrated into UniProtKB/TrEMBL.
DT 12-APR-2017, sequence version 1.
DT 27-MAR-2024, entry version 31.
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 ORFNames=AMK22_13020 {ECO:0000313|EMBL:OKJ37617.1};
OS Streptomyces sp. CB01580.
OC Bacteria; Actinomycetota; Actinomycetes; Kitasatosporales;
OC Streptomycetaceae; Streptomyces.
OX NCBI_TaxID=1703933 {ECO:0000313|EMBL:OKJ37617.1, ECO:0000313|Proteomes:UP000186318};
RN [1] {ECO:0000313|EMBL:OKJ37617.1, ECO:0000313|Proteomes:UP000186318}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=CB01580 {ECO:0000313|EMBL:OKJ37617.1,
RC ECO:0000313|Proteomes:UP000186318};
RX PubMed=27999165; DOI=10.1128/mbio.02104-16;
RA Yan X., Ge H., Huang T., Hindra, Yang D., Teng Q., Crnovcic I., Li X.,
RA Rudolf J.D., Lohman J.R., Gansemans Y., Zhu X., Huang Y., Zhao L.X.,
RA Jiang Y., Van Nieuwerburgh F., Rader C., Duan Y., Shen B.;
RT "Strain Prioritization and Genome Mining for Enediyne Natural Products.";
RL MBio 7:e02104-e02116(2016).
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:OKJ37617.1}.
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DR EMBL; LIXJ01000007; OKJ37617.1; -; Genomic_DNA.
DR RefSeq; WP_073784706.1; NZ_LIXJ01000007.1.
DR AlphaFoldDB; A0A1Q5GYM4; -.
DR STRING; 1703933.AMK22_13020; -.
DR OrthoDB; 4494979at2; -.
DR UniPathway; UPA00047; UER00055.
DR UniPathway; UPA00049; UER00059.
DR Proteomes; UP000186318; 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 Reference proteome {ECO:0000313|Proteomes:UP000186318};
KW Thiamine pyrophosphate {ECO:0000256|RuleBase:RU003591};
KW Transferase {ECO:0000256|RuleBase:RU003591, ECO:0000313|EMBL:OKJ37617.1}.
FT DOMAIN 31..145
FT /note="Thiamine pyrophosphate enzyme N-terminal TPP-
FT binding"
FT /evidence="ECO:0000259|Pfam:PF02776"
FT DOMAIN 220..355
FT /note="Thiamine pyrophosphate enzyme central"
FT /evidence="ECO:0000259|Pfam:PF00205"
FT DOMAIN 419..581
FT /note="Thiamine pyrophosphate enzyme TPP-binding"
FT /evidence="ECO:0000259|Pfam:PF02775"
FT REGION 1..24
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ SEQUENCE 618 AA; 65446 MW; B6BBC919A1BD5602 CRC64;
MPMTEQATGA HHPQPRARNG GSPAATVEHV TGAQSLIRSL EEVGADTVFG IPGGAILPAY
DPMMDSTRVR HVLVRHEQGA GHAATGYAQA TGKVGVCMAT SGPGATNLVT PIADAHMDSV
PLVAITGQVA SGAIGTDAFQ EADICGITMP VTKHNFLVTK AEDIPHTIAE AFHIASTGRP
GPVLVDIAKD ALQAQTTFSW PPTQDLPGYR PVTKPHAKQI REAAKLITQA ERPVLYVGGG
VIKAGATAEL KVLAELTGAP VTTTLMALGA FPDSHPLHVG MPGMHGSVTA VTALQKADLI
VALGARFDDR VTGRLDSFAP YAKIVHADID PAEIGKNRAA DVPIVGDARE VLADLVQAVQ
AEHTAGHVGD YASWWKDLDR WRETYPLGYD LPEDGSLSPQ QVIQRIGRLA PEGTIFAAGV
GQHQMWAAHF IDYERPATWL NSGGAGTMGY AVPAAMGAKA GAPDRTVWAI DGDGCFQMTN
QELTTCALNN IPIKVAIINN GALGMVRQWQ TLFYNQRYSN TVLHSGADTE GVPAKGTRVP
DFVKLSEAMG CHAIRCEDPA DLDKVIEEAN SINDRPVVID FIVHEDAMVW PMVAAGTSND
EVMAARGVRP DFGDNEDD
//
