ID A0A1M6KNP2_9ACTN Unreviewed; 586 AA.
AC A0A1M6KNP2;
DT 15-MAR-2017, integrated into UniProtKB/TrEMBL.
DT 15-MAR-2017, sequence version 1.
DT 27-MAR-2024, entry version 30.
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=SAMN05421803_107248 {ECO:0000313|EMBL:SHJ60618.1};
OS Nocardiopsis flavescens.
OC Bacteria; Actinomycetota; Actinomycetes; Streptosporangiales;
OC Nocardiopsaceae; Nocardiopsis.
OX NCBI_TaxID=758803 {ECO:0000313|EMBL:SHJ60618.1, ECO:0000313|Proteomes:UP000184452};
RN [1] {ECO:0000313|EMBL:SHJ60618.1, ECO:0000313|Proteomes:UP000184452}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=CGMCC 4.5723 {ECO:0000313|EMBL:SHJ60618.1,
RC ECO:0000313|Proteomes:UP000184452};
RA Jaros S., Januszkiewicz K., Wedrychowicz H.;
RL Submitted (NOV-2016) 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; FQZK01000007; SHJ60618.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A1M6KNP2; -.
DR STRING; 758803.SAMN05421803_107248; -.
DR OrthoDB; 4959782at2; -.
DR UniPathway; UPA00047; UER00055.
DR UniPathway; UPA00049; UER00059.
DR Proteomes; UP000184452; 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:UP000184452};
KW Thiamine pyrophosphate {ECO:0000256|RuleBase:RU003591};
KW Transferase {ECO:0000256|RuleBase:RU003591}.
FT DOMAIN 5..120
FT /note="Thiamine pyrophosphate enzyme N-terminal TPP-
FT binding"
FT /evidence="ECO:0000259|Pfam:PF02776"
FT DOMAIN 195..330
FT /note="Thiamine pyrophosphate enzyme central"
FT /evidence="ECO:0000259|Pfam:PF00205"
FT DOMAIN 394..551
FT /note="Thiamine pyrophosphate enzyme TPP-binding"
FT /evidence="ECO:0000259|Pfam:PF02775"
SQ SEQUENCE 586 AA; 62843 MW; D5D27748322D1BAB CRC64;
MTEQMTGAQS LIRSLEQVGV DTVFGIPGGA ILPAYDPLYD SAKVRHILMR HEQGAGHAAE
GYAYATGRPG VCMATSGPGA TNLVTPLADA YMDSVPMVAI TGQVAAPMIG TDAFQEADIC
GITMPITKHN FLVKDVREIP RTIAEAFHIA SSGRPGPVLV DISKDALQAG ADFVWPERLE
LPGYRPVTKP HGKQVREAAR MILEAKRPVL YVGGGVLRAG AAAELRVLAE LTGVPVVTTL
MARGVFPDSH PQFLGMPGMH GDVAAVGSLQ RADLIVALGA RFDDRVTGRL DSFAPDAKIV
HADIDPAEIS KNRHADVPIV GDCREVLADL VVAVRGDQEK GRAGDYGAWW QHLGRLKDTY
PKGYDVPEDG SLSPQMVIER LGKVVGPEAT YVAGVGQHQM WAAQFIGYER PGAFVNSGGL
GTMGFSVPAA LGAKVGDPDR AVWSIDGDGC FQMTNQELAT CAIEGIPVKV AVVNNGNLGM
VRQWQTLYYE GRYSNTDLQT SPRDEKVRIP DFVKLSEAYG CVGLRCERAE DVDATIEKAM
AINDVPVVVD FTVNHDAMVW PMVGPGVSND NIQYARDMAP SWDDED
//
