ID A0A0R2S1I5_9FLAO Unreviewed; 577 AA.
AC A0A0R2S1I5;
DT 20-JAN-2016, integrated into UniProtKB/TrEMBL.
DT 20-JAN-2016, sequence version 1.
DT 27-MAR-2024, entry version 36.
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 ORFNames=ABR84_08360 {ECO:0000313|EMBL:KRO66554.1};
OS Cryomorphaceae bacterium BACL21 MAG-121220-bin10.
OC Bacteria; Bacteroidota; Flavobacteriia; Flavobacteriales; Cryomorphaceae.
OX NCBI_TaxID=1655592 {ECO:0000313|EMBL:KRO66554.1, ECO:0000313|Proteomes:UP000051758};
RN [1] {ECO:0000313|EMBL:KRO66554.1, ECO:0000313|Proteomes:UP000051758}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=BACL21 MAG-121220-bin10 {ECO:0000313|EMBL:KRO66554.1};
RA Hugerth L.W., Larsson J., Alneberg J., Lindh M.V., Legrand C., Pinhassi J.,
RA Andersson A.F.;
RT "Metagenome-Assembled Genomes uncover a global brackish microbiome.";
RL Submitted (OCT-2015) 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:KRO66554.1}.
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DR EMBL; LICC01000046; KRO66554.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A0R2S1I5; -.
DR STRING; 1655592.ABR84_08360; -.
DR UniPathway; UPA00047; UER00055.
DR UniPathway; UPA00049; UER00059.
DR Proteomes; UP000051758; 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; 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: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.
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:KRO66554.1}.
FT DOMAIN 20..135
FT /note="Thiamine pyrophosphate enzyme N-terminal TPP-
FT binding"
FT /evidence="ECO:0000259|Pfam:PF02776"
FT DOMAIN 210..345
FT /note="Thiamine pyrophosphate enzyme central"
FT /evidence="ECO:0000259|Pfam:PF00205"
FT DOMAIN 406..553
FT /note="Thiamine pyrophosphate enzyme TPP-binding"
FT /evidence="ECO:0000259|Pfam:PF02775"
SQ SEQUENCE 577 AA; 62227 MW; A137FB54A4C806EE CRC64;
MQTETLISKD PIASECIRIS GSEAIVRSLI AEGVDVLYGY PGGAIMPVYD ALYHFKDQLH
HVLTRHEQGA THAAQGYARI SGKVGVAIAT SGPGATNLVT GIADAQIDST PLVCITGQVT
SSLLGSDAFQ ETDIIGISTP VTKWNHQITK ASEIPEVIAK AFYIARSGRP GPVLIDITKD
AQFETLDFTY QKCTGIRSYS PEPQIDPLAI NKAAALINKA KKPLVVWGQG VILSGAETAF
KAVIEKAGLP SAWTILGASA IETSHPLNVG MVGMHGNYAP NILTNECDVL IAIGMRFDDR
VTGHLESYAR QAKVIHFEID PAEINKNVTA DVAVLGDAKK TLEALLPMLV QNTHESWRGR
FAALYQIEYD EIIQKDLFPT KEGLTMGEVI HKINTFSKGD AAIVSDVGQH QMIACRYAKF
RQTKSNITSG GLGTMGFALP AAIGAKMAAP EREVVAVIGD GGYQMTIQEL GTIFQTKAAV
KIVLLNNNFL GMVRQWQQLF FDKRYAATEL INPDFGMIAN AYHIPAQKVT VRADLDAAVM
TMMAHDGPYF LEVVVAPEAN VFPMIPSGAS VSDIRLS
//
