ID K4INL4_PSYTT Unreviewed; 577 AA.
AC K4INL4;
DT 09-JAN-2013, integrated into UniProtKB/TrEMBL.
DT 09-JAN-2013, sequence version 1.
DT 27-MAR-2024, entry version 64.
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=P700755_000066 {ECO:0000313|EMBL:AFU67140.1};
OS Psychroflexus torquis (strain ATCC 700755 / ACAM 623).
OC Bacteria; Bacteroidota; Flavobacteriia; Flavobacteriales;
OC Flavobacteriaceae; Psychroflexus.
OX NCBI_TaxID=313595 {ECO:0000313|EMBL:AFU67140.1, ECO:0000313|Proteomes:UP000008514};
RN [1] {ECO:0000313|EMBL:AFU67140.1, ECO:0000313|Proteomes:UP000008514}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 700755 / ACAM 623 {ECO:0000313|Proteomes:UP000008514};
RA Bowman J., Ferriera S., Johnson J., Kravitz S., Halpern A., Remington K.,
RA Beeson K., Tran B., Rogers Y.-H., Friedman R., Venter J.C.;
RL Submitted (MAR-2006) to the EMBL/GenBank/DDBJ databases.
RN [2] {ECO:0000313|EMBL:AFU67140.1, ECO:0000313|Proteomes:UP000008514}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 700755 / ACAM 623 {ECO:0000313|Proteomes:UP000008514};
RA Feng S., Powell S.M., Bowman J.P.;
RT "The complete sequence of Psychroflexus torquis an extreme psychrophile
RT from sea-ice that is stimulated by light.";
RL Submitted (SEP-2012) 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 ---------------------------------------------------------------------------
CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC ---------------------------------------------------------------------------
DR EMBL; CP003879; AFU67140.1; -; Genomic_DNA.
DR RefSeq; WP_015022760.1; NC_018721.1.
DR AlphaFoldDB; K4INL4; -.
DR STRING; 313595.P700755_000066; -.
DR KEGG; ptq:P700755_000066; -.
DR eggNOG; COG0028; Bacteria.
DR HOGENOM; CLU_013748_1_2_10; -.
DR OrthoDB; 4494979at2; -.
DR UniPathway; UPA00047; UER00055.
DR UniPathway; UPA00049; UER00059.
DR Proteomes; UP000008514; 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: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}.
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; 63162 MW; C453FAD4BA18A52A CRC64;
MEESYTLEKK EKTITKESIS GSEALMKCLM AEGVETLYGY PGGAIMPVYD QLYKYQDRIH
HVMARHEQGA THAAQGYSRI SGKVGVVIAT SGPGATNLVT GIADAQIDST PLVCITGQVS
SHLLGSDAFQ ETDIIGISTS VTKWNHQITK AEDIPKVLAK AFFIAKSGRP GPVLIDITKD
AQFEEFDFSY QKCIGIRSYK PVPIVNKKQI EAAAALINSA KQPLIVWGQG IILSEAEDIF
KALVEKSGIP AAWTILGASA LPTSHSLNVG MVGMHGNYGP NMLTNECDVL IAIGMRFDDR
VTGNLDSYAK QAKVIHFEID PAEIDKNVTA DIAILGDAKD SLTQLLPYLE EKTYSDWHQK
FKDLYAIEYD KVIKNDIHPT KEGLTMGEVI HQINLQTKGN AAIVSDVGQH QMIACRYSNF
NITKSNITSG GLGTMGFALP AAIGAKMAAP ERDVIAIIGD GGYQMTIQEL GTVFQQRIPL
KIVVLNNEFL GMVRQWQQLF FDKRYASTEM TNPDFVAIAK GYYIDAQKVT KRSELKLAVQ
EMMASVGPYF LEVCVEKEGN VFPMIPSGAS VSEIRLE
//
