ID Q1QJU6_NITHX Unreviewed; 592 AA.
AC Q1QJU6;
DT 16-MAY-2006, integrated into UniProtKB/TrEMBL.
DT 16-MAY-2006, sequence version 1.
DT 27-MAR-2024, entry version 104.
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 OrderedLocusNames=Nham_2722 {ECO:0000313|EMBL:ABE63501.1};
OS Nitrobacter hamburgensis (strain DSM 10229 / NCIMB 13809 / X14).
OC Bacteria; Pseudomonadota; Alphaproteobacteria; Hyphomicrobiales;
OC Nitrobacteraceae; Nitrobacter.
OX NCBI_TaxID=323097 {ECO:0000313|EMBL:ABE63501.1, ECO:0000313|Proteomes:UP000001953};
RN [1] {ECO:0000313|EMBL:ABE63501.1, ECO:0000313|Proteomes:UP000001953}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 10229 / NCIMB 13809 / X14
RC {ECO:0000313|Proteomes:UP000001953};
RG US DOE Joint Genome Institute;
RA Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C.,
RA Glavina del Rio T., Hammon N., Israni S., Dalin E., Tice H., Pitluck S.,
RA Chain P., Malfatti S., Shin M., Vergez L., Schmutz J., Larimer F., Land M.,
RA Hauser L., Kyrpides N., Ivanova N., Ward B., Arp D., Klotz M., Stein L.,
RA O'Mullan G., Starkenburg S., Sayavedra L., Poret-Peterson A.T.,
RA Gentry M.E., Bruce D., Richardson P.;
RT "Complete sequence of chromosome of Nitrobacter hamburgensis X14.";
RL Submitted (MAR-2006) 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; CP000319; ABE63501.1; -; Genomic_DNA.
DR RefSeq; WP_011511167.1; NC_007964.1.
DR AlphaFoldDB; Q1QJU6; -.
DR STRING; 323097.Nham_2722; -.
DR KEGG; nha:Nham_2722; -.
DR eggNOG; COG0028; Bacteria.
DR HOGENOM; CLU_013748_1_2_5; -.
DR OrthoDB; 4494979at2; -.
DR UniPathway; UPA00047; UER00055.
DR UniPathway; UPA00049; UER00059.
DR Proteomes; UP000001953; 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 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.
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:UP000001953};
KW Thiamine pyrophosphate {ECO:0000256|RuleBase:RU003591};
KW Transferase {ECO:0000256|RuleBase:RU003591, ECO:0000313|EMBL:ABE63501.1}.
FT DOMAIN 12..128
FT /note="Thiamine pyrophosphate enzyme N-terminal TPP-
FT binding"
FT /evidence="ECO:0000259|Pfam:PF02776"
FT DOMAIN 203..340
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 592 AA; 64282 MW; F4C001581B6D9BEB CRC64;
MSESKRQDSR QMTGAAMIVR ALVDHGVEHI FGYPGGAVLP IYDEIFQQSE IEHILVRHEQ
GAGHAAEGYA RSTGKPGVVL VTSGPGATNM VTPLTDALMD SIPLVCITGQ VPTHLIGNDA
FQECDTVGIT RPSTKHNWLV RDVKDLARVL HEAFYVATTG RPGPVVVDVP KDVQFATGIY
TPPRKSDVHV SYKPQTKGDA GQIRKAVTLL ANAKRPVIYT GGGIINSGRD ASKTLRALVE
ATGFPVTSTL MGLGAYPASG KNWLGMLGMH GTYEANMAMH DCDVMLCIGA RFDDRITGRT
DAFSPGSKKI HIDIDPSSIN KNIRVDVPII GDAGSVMTDL LEAFKKENKK PRIDPWWFEI
GRWRARNSLA YKKNNDVILP QFAIQRLFEA TRGRDTYITT EVGQHQMWAA QFFGFEEPHR
LMTSGGLGTM GYGLPAALGV QVAHRDSLVI DIAGDASVQM TMQEMSTAVQ HGLPIKIFIL
NNQYMGMVRQ WQQLLHGNRL SHSYSEASPD FVKLADAFGC VGLQATKPSD LDGAITEMIS
VNKPVLFDCR VAALENCFPM IPSGKAHNEM LLPAEANDDA TAAAFAGGKA LV
//
