ID D3V6M8_XENBS Unreviewed; 548 AA.
AC D3V6M8;
DT 20-APR-2010, integrated into UniProtKB/TrEMBL.
DT 20-APR-2010, sequence version 1.
DT 27-MAR-2024, entry version 84.
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:CBJ83307.1};
GN OrderedLocusNames=XBJ1_4195 {ECO:0000313|EMBL:CBJ83307.1};
OS Xenorhabdus bovienii (strain SS-2004).
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Enterobacterales;
OC Morganellaceae; Xenorhabdus.
OX NCBI_TaxID=406818 {ECO:0000313|EMBL:CBJ83307.1, ECO:0000313|Proteomes:UP000002045};
RN [1] {ECO:0000313|EMBL:CBJ83307.1}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=SS-2004 {ECO:0000313|EMBL:CBJ83307.1};
RX PubMed=22125637; DOI=10.1371/journal.pone.0027909;
RA Chaston J.M., Suen G., Tucker S.L., Andersen A.W., Bhasin A., Bode E.,
RA Bode H.B., Brachmann A.O., Cowles C.E., Cowles K.N., Darby C., de Leon L.,
RA Drace K., Du Z., Givaudan A., Herbert Tran E.E., Jewell K.A., Knack J.J.,
RA Krasomil-Osterfeld K.C., Kukor R., Lanois A., Latreille P.,
RA Leimgruber N.K., Lipke C.M., Liu R., Lu X., Martens E.C., Marri P.R.,
RA Medigue C., Menard M.L., Miller N.M., Morales-Soto N., Norton S.,
RA Ogier J.C., Orchard S.S., Park D., Park Y., Qurollo B.A., Sugar D.R.,
RA Richards G.R., Rouy Z., Slominski B., Slominski K., Snyder H., Tjaden B.C.,
RA van der Hoeven R., Welch R.D., Wheeler C., Xiang B., Barbazuk B.,
RA Gaudriault S., Goodner B., Slater S.C., Forst S., Goldman B.S.,
RA Goodrich-Blair H.;
RT "The entomopathogenic bacterial endosymbionts xenorhabdus and photorhabdus:
RT convergent lifestyles from divergent genomes.";
RL PLoS ONE 6:E27909-E27909(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; FN667741; CBJ83307.1; -; Genomic_DNA.
DR RefSeq; WP_012990459.1; NC_013892.1.
DR AlphaFoldDB; D3V6M8; -.
DR STRING; 406818.XBJ1_4195; -.
DR DNASU; 8833819; -.
DR KEGG; xbo:XBJ1_4195; -.
DR PATRIC; fig|406818.4.peg.3783; -.
DR eggNOG; COG0028; Bacteria.
DR HOGENOM; CLU_013748_1_3_6; -.
DR UniPathway; UPA00047; UER00055.
DR UniPathway; UPA00049; UER00059.
DR Proteomes; UP000002045; 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: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 Thiamine pyrophosphate {ECO:0000256|RuleBase:RU003591};
KW Transferase {ECO:0000256|RuleBase:RU003591, ECO:0000313|EMBL:CBJ83307.1}.
FT DOMAIN 1..115
FT /note="Thiamine pyrophosphate enzyme N-terminal TPP-
FT binding"
FT /evidence="ECO:0000259|Pfam:PF02776"
FT DOMAIN 187..320
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; 59572 MW; D3BBB87DF6BF4C20 CRC64;
MNGAQWVVQA LRTQGIEKVF GYPGGAIMPI YDALYDGGIE HLLCRHEQGA VMAAIGYARA
NGKPGVCIAT SGPGATNLIT GLADALLDSV PVVAITGQVS SELIGTDAFQ EIDMLGLSLA
CTKHSFLVDS LDKLPQIIAE AFTIATSGRP GPVLIDLPKD IQLAQSDLAP YLMPVVSESF
PPEQELEQAR HMMLMAQKPI LYVGGGIGMA DAVPELRRFV TETGLPVVST LKGLGAADAE
HKYYLGMLGM HGTKAANLAV QSCDLLIAAG ARFDDRVTGK LNTFAPHAKV IHVDIDPVEF
NKLRQAHVSL PGNLKTLLPH LQQPLSIESW QQEIKRLKSE HTWHYDYQGV SIYAPSLLKQ
VSERKPSNAI ITTDVGQHQM WTAQHMTFDR PANFITSSGL GTMGFGIPAA IGAQMARPED
MVLCISGDGS FMMNVQELGT IKRKQLPIKI ILLDNQRLGM VRQWQELFFD KRYSETILND
NPDFIALAKA FDIPGQQITD KTQIDAALDA LFSSEGPYLL HVSIDELENV WPLVPPGSSN
ATMLEKSL
//
