ID A0A0A1CXQ6_9MICC Unreviewed; 629 AA.
AC A0A0A1CXQ6;
DT 04-FEB-2015, integrated into UniProtKB/TrEMBL.
DT 04-FEB-2015, sequence version 1.
DT 24-JAN-2024, entry version 45.
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=ART_1370 {ECO:0000313|EMBL:AIY00969.1};
OS Arthrobacter sp. PAMC 25486.
OC Bacteria; Actinomycetota; Actinomycetes; Micrococcales; Micrococcaceae;
OC Arthrobacter.
OX NCBI_TaxID=1494608 {ECO:0000313|EMBL:AIY00969.1, ECO:0000313|Proteomes:UP000030301};
RN [1] {ECO:0000313|EMBL:AIY00969.1, ECO:0000313|Proteomes:UP000030301}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=PAMC25486 {ECO:0000313|EMBL:AIY00969.1,
RC ECO:0000313|Proteomes:UP000030301};
RA Jung J.-H., Joe M.-H., Cho Y.-J., Lee S.G., Han S.J., Lim S., Choi J.-I.;
RT "Complete genome sequence of Arthrobacter sp. PAMC25486 isolated from the
RT Arctic.";
RL Submitted (APR-2014) 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}.
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DR EMBL; CP007595; AIY00969.1; -; Genomic_DNA.
DR RefSeq; WP_038463297.1; NZ_CP007595.1.
DR AlphaFoldDB; A0A0A1CXQ6; -.
DR STRING; 1494608.ART_1370; -.
DR KEGG; arm:ART_1370; -.
DR HOGENOM; CLU_013748_1_2_11; -.
DR OrthoDB; 4494979at2; -.
DR UniPathway; UPA00047; UER00055.
DR UniPathway; UPA00049; UER00059.
DR Proteomes; UP000030301; 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, CHLOROPLASTIC; 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:UP000030301};
KW Thiamine pyrophosphate {ECO:0000256|RuleBase:RU003591};
KW Transferase {ECO:0000256|RuleBase:RU003591, ECO:0000313|EMBL:AIY00969.1}.
FT DOMAIN 51..166
FT /note="Thiamine pyrophosphate enzyme N-terminal TPP-
FT binding"
FT /evidence="ECO:0000259|Pfam:PF02776"
FT DOMAIN 241..374
FT /note="Thiamine pyrophosphate enzyme central"
FT /evidence="ECO:0000259|Pfam:PF00205"
FT DOMAIN 439..594
FT /note="Thiamine pyrophosphate enzyme TPP-binding"
FT /evidence="ECO:0000259|Pfam:PF02775"
FT REGION 1..27
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ SEQUENCE 629 AA; 66744 MW; CA3E4BC61FE8E28D CRC64;
MSKGTPASPA LMAAKSSAHG AQGGTASGAV STINATSDVV GPNNVVAPIQ MTGSEALVRS
LEELGVKDIF GLPGGAILPT YDPLMASSLN HILVRHEQGA GHAAQGYAMV TGNVGVCIAT
SGPGATNLVT AIMDAHMDSV PLVAITGQVA SSVIGTDAFQ EADIVGITMP ITKHSYLVTD
PNDIPRVLAE AFHLASTGRP GPVLVDFAKD AQQAQMTFSW PPVIDLPGYR PVFRGHSKQL
REAARLIREA QKPVLYVGGG VIKANAAEEL MVLAELTGAP VVTTLMARGA FPDSHHLHVG
MPGMHGSVSA VTALQQSDLL ITLGARFDDR VTGVLSSFAP HAKVIHADID PAEISKNRTA
DVPIVGSVKE IIPDLTAAVK AEFEANGPSD LGDWWAFLGN LRDTYPLGWT EPEDGLMSPQ
HVISRIGALT GPEAIYTAGV GQHQMWAAQF IKYERPRSWL NSGGAGTMGY SVPAAMGAKV
GNPDRVVWAI DGDGCFQMTN QELATCRINN IPIKVAIINN SSLGMVRQWQ TLFYNSRYSN
TDLNTGHDTI RVPDFVKLAD AYDCVGLRCE RVEDIDATIE AALAINDRPV IIDFVVSPDS
MVWPMVPSGV SNDQIQVARN MTPVWDEED
//