ID E3I3U3_RHOVT Unreviewed; 587 AA.
AC E3I3U3;
DT 11-JAN-2011, integrated into UniProtKB/TrEMBL.
DT 11-JAN-2011, sequence version 1.
DT 27-MAR-2024, entry version 67.
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=Rvan_2282 {ECO:0000313|EMBL:ADP71506.1};
OS Rhodomicrobium vannielii (strain ATCC 17100 / ATH 3.1.1 / DSM 162 / LMG
OS 4299).
OC Bacteria; Pseudomonadota; Alphaproteobacteria; Hyphomicrobiales;
OC Hyphomicrobiaceae; Rhodomicrobium.
OX NCBI_TaxID=648757 {ECO:0000313|EMBL:ADP71506.1, ECO:0000313|Proteomes:UP000001399};
RN [1] {ECO:0000313|Proteomes:UP000001399}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 17100 / ATH 3.1.1 / DSM 162 / LMG 4299
RC {ECO:0000313|Proteomes:UP000001399};
RX PubMed=21705585; DOI=10.1128/JB.05453-11;
RG US DOE Joint Genome Institute;
RA Brown P.J., Kysela D.T., Buechlein A., Hemmerich C., Brun Y.V.;
RT "Genome sequences of eight morphologically diverse alphaproteobacteria.";
RL J. Bacteriol. 193:4567-4568(2011).
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; CP002292; ADP71506.1; -; Genomic_DNA.
DR RefSeq; WP_013419888.1; NC_014664.1.
DR AlphaFoldDB; E3I3U3; -.
DR STRING; 648757.Rvan_2282; -.
DR KEGG; rva:Rvan_2282; -.
DR eggNOG; COG0028; Bacteria.
DR HOGENOM; CLU_013748_1_3_5; -.
DR OrthoDB; 4494979at2; -.
DR UniPathway; UPA00047; UER00055.
DR UniPathway; UPA00049; UER00059.
DR Proteomes; UP000001399; 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:UP000001399};
KW Thiamine pyrophosphate {ECO:0000256|RuleBase:RU003591};
KW Transferase {ECO:0000256|RuleBase:RU003591}.
FT DOMAIN 5..121
FT /note="Thiamine pyrophosphate enzyme N-terminal TPP-
FT binding"
FT /evidence="ECO:0000259|Pfam:PF02776"
FT DOMAIN 195..331
FT /note="Thiamine pyrophosphate enzyme central"
FT /evidence="ECO:0000259|Pfam:PF00205"
FT DOMAIN 397..544
FT /note="Thiamine pyrophosphate enzyme TPP-binding"
FT /evidence="ECO:0000259|Pfam:PF02775"
SQ SEQUENCE 587 AA; 64383 MW; 1D01910621CEC07E CRC64;
MARAMTGAEI VLQALADQGV EHIFGYPGGA VLPIYDEIFK QNGIKHFLVR HEQGATHAAE
GYARSSGKVG VVLVTSGPGA TNAVTGLADA LMDSIPLVCI TGQVGTPLIG SDAFQECDTV
GITRPCTKHN YLVKDVSDLA RILHEAFYVA QNGRPGPVVI DIPKDVQFAK GTYIGPNKVV
HKTYRPQVKG SPQAIRDAVD LIASAKKPIF YTGGGVINSG PAASKLLREF VDTTGFPITS
TLMGLGAYPA SSKQWLGMLG MHGTYEANMA MHDCDVMICV GARFDDRITG RLNAFAPNSK
KIHIDIDPSS ISKTVRADIP IIGDCGYVLE EMLRVWRSRA PQIDKKAIKA WWTSIDGWRS
RDCLKYKTRD DVIMPQYAIQ RLYELTKNRD TYITTEVGQH QMWAAQFYRF DEPNHWMTSG
GLGTMGYGLP AAVGVQVAHP ESLVIDIAGE SSVMMTMQEM STAAQYGLPI KIFILNNEYM
GMVRQWQELM HGGRYSQSYA EALPDFVKLA EAYHGVGLRC EKPDELDDMI IEMINTPKPV
LFDCRVSKLA NCFPMIPSGE AHNNMLFGDE LASEDIELAF SKGKALV
//
