ID A4G4H6_HERAR Unreviewed; 579 AA.
AC A4G4H6;
DT 17-APR-2007, integrated into UniProtKB/TrEMBL.
DT 17-APR-2007, sequence version 1.
DT 24-JAN-2024, entry version 101.
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=ilvI {ECO:0000313|EMBL:CAL61413.1};
GN OrderedLocusNames=HEAR1237 {ECO:0000313|EMBL:CAL61413.1};
OS Herminiimonas arsenicoxydans.
OC Bacteria; Pseudomonadota; Betaproteobacteria; Burkholderiales;
OC Oxalobacteraceae; Herminiimonas.
OX NCBI_TaxID=204773 {ECO:0000313|EMBL:CAL61413.1, ECO:0000313|Proteomes:UP000006697};
RN [1] {ECO:0000313|EMBL:CAL61413.1, ECO:0000313|Proteomes:UP000006697}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ULPAs1 {ECO:0000313|Proteomes:UP000006697};
RX PubMed=17432936; DOI=10.1371/journal.pgen.0030053;
RA Muller D., Medigue C., Koechler S., Barbe V., Barakat M., Talla E.,
RA Bonnefoy V., Krin E., Arsene-Ploetze F., Carapito C., Chandler M.,
RA Cournoyer B., Cruveiller S., Dossat C., Duval S., Heymann M., Leize E.,
RA Lieutaud A., Lievremont D., Makita Y., Mangenot S., Nitschke W., Ortet P.,
RA Perdrial N., Schoepp B., Siguier N., Simeonova D.D., Rouy Z., Segurens B.,
RA Turlin E., Vallenet D., Van Dorsselaer A., Weiss S., Weissenbach J.,
RA Lett M.C., Danchin A., Bertin P.N.;
RT "A tale of two oxidation states: bacterial colonization of arsenic-rich
RT environments.";
RL PLoS Genet. 3:518-530(2007).
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; CU207211; CAL61413.1; -; Genomic_DNA.
DR AlphaFoldDB; A4G4H6; -.
DR STRING; 204773.HEAR1237; -.
DR KEGG; har:HEAR1237; -.
DR eggNOG; COG0028; Bacteria.
DR HOGENOM; CLU_013748_1_2_4; -.
DR OMA; CFGTSGP; -.
DR OrthoDB; 2254214at2; -.
DR UniPathway; UPA00047; UER00055.
DR UniPathway; UPA00049; UER00059.
DR Proteomes; UP000006697; 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; 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.
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:UP000006697};
KW Thiamine pyrophosphate {ECO:0000256|RuleBase:RU003591};
KW Transferase {ECO:0000256|RuleBase:RU003591, ECO:0000313|EMBL:CAL61413.1}.
FT DOMAIN 14..129
FT /note="Thiamine pyrophosphate enzyme N-terminal TPP-
FT binding"
FT /evidence="ECO:0000259|Pfam:PF02776"
FT DOMAIN 203..339
FT /note="Thiamine pyrophosphate enzyme central"
FT /evidence="ECO:0000259|Pfam:PF00205"
FT DOMAIN 402..549
FT /note="Thiamine pyrophosphate enzyme TPP-binding"
FT /evidence="ECO:0000259|Pfam:PF02775"
SQ SEQUENCE 579 AA; 63846 MW; B2326FF1C725569D CRC64;
MTSETNNAVG EELTGAEIVV RCLAEEGVEH VFGYPGGAVL YIYDAIYNQD KFQHILVRHE
QAAVHAADAY SRSSKKVGVS IVTSGPGVTN AVTGLATAYM DSIPMVIISG QVPTHGIGLD
AFQECDTVGI TRPCVKHNFL VKDVRDLAAT MKKAFYIATT GRPGPVLVDI PKDVSMHKCM
FSYPKEVEMR SYKPVDKGHT GQIRKAVQLL LQAERPMIYT GGGVILANAS EELTQLVDKL
GFPCTNTLMG LGSYRASSDK FVGMPGMHGT YEANMAMQHS DVMIAIGARF DDRVIGNPKH
FSSNPRKIIH IDIDPSSISK RVKVDIPIVG NVKEVLVELL AQLDAAEAKP NSVALSNWWK
QINEWRKRDC LKFENSTTVI KPQSVIQKVW DVTKGDAFVT SDVGQHQMWA AQYYPFDKPR
RWINSGGLGT MGVGLPYAMG VQMANPDATV ACITGEASIQ MCIQELATCK QYHLTPKIIL
LNNRFLGMVR QWQQLEYGSR YSESYMDSLP DFDKLVEAYG HVGMTIENPA DVDGALKEAF
AMKDRLVFMN FITDQTENVW PMVKAGQGLT EMLLGSEDL
//