ID A0A1B7JVI3_9GAMM Unreviewed; 548 AA.
AC A0A1B7JVI3;
DT 02-NOV-2016, integrated into UniProtKB/TrEMBL.
DT 02-NOV-2016, sequence version 1.
DT 27-MAR-2024, entry version 32.
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=M998_1922 {ECO:0000313|EMBL:OAT51923.1};
OS Providencia heimbachae ATCC 35613.
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Enterobacterales;
OC Morganellaceae; Providencia.
OX NCBI_TaxID=1354272 {ECO:0000313|EMBL:OAT51923.1, ECO:0000313|Proteomes:UP000078224};
RN [1] {ECO:0000313|EMBL:OAT51923.1, ECO:0000313|Proteomes:UP000078224}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 35613 {ECO:0000313|EMBL:OAT51923.1,
RC ECO:0000313|Proteomes:UP000078224};
RA Plunkett G.III., Neeno-Eckwall E.C., Glasner J.D., Perna N.T.;
RT "ATOL: Assembling a taxonomically balanced genome-scale reconstruction of
RT the evolutionary history of the Enterobacteriaceae.";
RL Submitted (APR-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}.
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:OAT51923.1}.
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DR EMBL; LXEW01000027; OAT51923.1; -; Genomic_DNA.
DR RefSeq; WP_068439705.1; NZ_LXEW01000027.1.
DR AlphaFoldDB; A0A1B7JVI3; -.
DR GeneID; 79029736; -.
DR PATRIC; fig|1354272.4.peg.1954; -.
DR OrthoDB; 9785953at2; -.
DR UniPathway; UPA00047; UER00055.
DR UniPathway; UPA00049; UER00059.
DR Proteomes; UP000078224; 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:SF142; ACETOLACTATE SYNTHASE; 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:UP000078224};
KW Thiamine pyrophosphate {ECO:0000256|RuleBase:RU003591};
KW Transferase {ECO:0000256|RuleBase:RU003591, ECO:0000313|EMBL:OAT51923.1}.
FT DOMAIN 1..115
FT /note="Thiamine pyrophosphate enzyme N-terminal TPP-
FT binding"
FT /evidence="ECO:0000259|Pfam:PF02776"
FT DOMAIN 186..321
FT /note="Thiamine pyrophosphate enzyme central"
FT /evidence="ECO:0000259|Pfam:PF00205"
FT DOMAIN 374..522
FT /note="Thiamine pyrophosphate enzyme TPP-binding"
FT /evidence="ECO:0000259|Pfam:PF02775"
SQ SEQUENCE 548 AA; 59285 MW; 8DED0DB945877F3B CRC64;
MNGAQWLVQA LRTQGVDTVF GYPGGAIMPV YDALYDGGVE HLLCRHEQGA VIAAIGYARS
TGKTGVCIAT SGPGATNVIT GLADALLDSV PVVAITGQVA SELIGTDAFQ EVDVLGLSLA
CTKHSFLVES IEDLPRILAE AFAIANSGRP GPVLIDIPKD IQLQHAELSP FLMPVEQDMI
TPAEEIQQAI SLLEQSEKPM LYVGGGVGMS GAVDELRAFI DYTGIPSVST LKGLGAVKPS
DENYLGMLGM HGMKAANISV QRCDLLIAVG ARFDDRVTGK LNTFAPNAKV IHIDIDHVEL
DKLRQTHVAL LGDAKALLPE LMLKKSISAW QQEVQQLKKD FGWRYDHPGE LIYAPLLLKQ
LSDKMKPNTV VTTDVGQHQM WSAQHVRVDG PENFLTSSGL GTMGFGVPAA IGAQVARPQD
TVVCISGDGS FMMNVQELGT IKRKKLPVKI LLLDNQRLGM VRQWQELFFE QRYSETILTD
NPDFVALASA FDIPGRRITN KSEVDAALDE LLNSEGAFLL QVSINELENV WPLVPPGASN
EKMMEKPL
//
