ID E2ZIX8_9FIRM Unreviewed; 554 AA.
AC E2ZIX8;
DT 11-JAN-2011, integrated into UniProtKB/TrEMBL.
DT 11-JAN-2011, sequence version 1.
DT 27-MAR-2024, entry version 61.
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=ilvB {ECO:0000313|EMBL:EFQ06858.1};
GN ORFNames=HMPREF9436_01624 {ECO:0000313|EMBL:EFQ06858.1};
OS Faecalibacterium cf. prausnitzii KLE1255.
OC Bacteria; Bacillota; Clostridia; Eubacteriales; Oscillospiraceae;
OC Faecalibacterium.
OX NCBI_TaxID=748224 {ECO:0000313|EMBL:EFQ06858.1, ECO:0000313|Proteomes:UP000006028};
RN [1] {ECO:0000313|EMBL:EFQ06858.1, ECO:0000313|Proteomes:UP000006028}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=KLE1255 {ECO:0000313|EMBL:EFQ06858.1,
RC ECO:0000313|Proteomes:UP000006028};
RA Weinstock G., Sodergren E., Clifton S., Fulton L., Fulton B., Courtney L.,
RA Fronick C., Harrison M., Strong C., Farmer C., Delahaunty K., Markovic C.,
RA Hall O., Minx P., Tomlinson C., Mitreva M., Hou S., Chen J., Wollam A.,
RA Pepin K.H., Johnson M., Bhonagiri V., Zhang X., Suruliraj S., Warren W.,
RA Chinwalla A., Mardis E.R., Wilson R.K.;
RL Submitted (AUG-2010) 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:EFQ06858.1}.
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DR EMBL; AECU01000123; EFQ06858.1; -; Genomic_DNA.
DR RefSeq; WP_005942211.1; NZ_GL538317.1.
DR AlphaFoldDB; E2ZIX8; -.
DR STRING; 748224.HMPREF9436_01624; -.
DR eggNOG; COG0028; Bacteria.
DR HOGENOM; CLU_013748_1_2_9; -.
DR OrthoDB; 4494979at2; -.
DR UniPathway; UPA00047; UER00055.
DR UniPathway; UPA00049; UER00059.
DR Proteomes; UP000006028; 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; 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 Thiamine pyrophosphate {ECO:0000256|RuleBase:RU003591};
KW Transferase {ECO:0000256|RuleBase:RU003591, ECO:0000313|EMBL:EFQ06858.1}.
FT DOMAIN 4..115
FT /note="Thiamine pyrophosphate enzyme N-terminal TPP-
FT binding"
FT /evidence="ECO:0000259|Pfam:PF02776"
FT DOMAIN 191..325
FT /note="Thiamine pyrophosphate enzyme central"
FT /evidence="ECO:0000259|Pfam:PF00205"
FT DOMAIN 381..530
FT /note="Thiamine pyrophosphate enzyme TPP-binding"
FT /evidence="ECO:0000259|Pfam:PF02775"
SQ SEQUENCE 554 AA; 60451 MW; C640E0596CFB1282 CRC64;
MQLNGSQIFV EVLCEQGVDT LFGYPGGAVL NLYDELYKNS DRITHVLTAH EQGAAHAADG
YARATGRTGV VLATSGPGAT NLVTGIATAY MDSVPMVAFT GNVTTAGIGR DSFQEAYIEG
ITMPITKHNF TVRRVEELAD TMRSAFRIAQ SGRKGPVLVD IPKDVTAAVC EFTPKKPEPI
RTVTTFNAEQ VKWAADLINA AQRPLVYFGG GVRSAASCQP LRDLLHKAEI PATYTLMAAG
VVPYGDPMNI GMVGMHGCYT SNRAVADCDV LIAVGTRFSD RVALNPKTFA KNATIIQIDI
DPSELGKNVE VDLSIVGDAA YVLNAMLPQI EEKKHPDWMK MIHEWQAQDY HPVSDPTRLM
PHQVIGEVCN QCGPEAVYVT DVGQHQMWAA QYLRHAKSRG FITSGGLGTM GFGYGAAIGA
QMALGRDQRV VMFTGDGSFH MNLNEACTAV SYELPIITVI FNNSVLGMVR QWQTTFYEKR
YSQTDPHRKT DFVKLADGFG LKGYRCTNLP EFQTAFADAM KQKGPTWIEC IIDKDEKVLP
MIPGGGDIND IIME
//
