ID A0A0N9UMI8_SPHMC Unreviewed; 584 AA.
AC A0A0N9UMI8;
DT 20-JAN-2016, integrated into UniProtKB/TrEMBL.
DT 20-JAN-2016, sequence version 1.
DT 27-MAR-2024, entry version 41.
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=AN936_11430 {ECO:0000313|EMBL:ALH80956.1};
OS Sphingopyxis macrogoltabida (Sphingomonas macrogoltabidus).
OC Bacteria; Pseudomonadota; Alphaproteobacteria; Sphingomonadales;
OC Sphingomonadaceae; Sphingopyxis.
OX NCBI_TaxID=33050 {ECO:0000313|EMBL:ALH80956.1, ECO:0000313|Proteomes:UP000058074};
RN [1] {ECO:0000313|EMBL:ALH80956.1, ECO:0000313|Proteomes:UP000058074}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=EY-1 {ECO:0000313|EMBL:ALH80956.1,
RC ECO:0000313|Proteomes:UP000058074};
RX PubMed=26634754;
RA Ohtsubo Y., Nagata Y., Numata M., Tsuchikane K., Hosoyama A., Yamazoe A.,
RA Tsuda M., Fujita N., Kawai F.;
RT "Complete Genome Sequence of Polypropylene Glycol- and Polyethylene Glycol-
RT Degrading Sphingopyxis macrogoltabida Strain EY-1.";
RL Genome Announc. 3:0-0(2015).
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; CP012700; ALH80956.1; -; Genomic_DNA.
DR RefSeq; WP_054588252.1; NZ_CP012700.1.
DR AlphaFoldDB; A0A0N9UMI8; -.
DR KEGG; smag:AN936_11430; -.
DR PATRIC; fig|33050.5.peg.2363; -.
DR UniPathway; UPA00047; UER00055.
DR UniPathway; UPA00049; UER00059.
DR Proteomes; UP000058074; 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:UP000058074};
KW Thiamine pyrophosphate {ECO:0000256|RuleBase:RU003591};
KW Transferase {ECO:0000256|RuleBase:RU003591}.
FT DOMAIN 4..120
FT /note="Thiamine pyrophosphate enzyme N-terminal TPP-
FT binding"
FT /evidence="ECO:0000259|Pfam:PF02776"
FT DOMAIN 194..330
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 584 AA; 62805 MW; 2E9EE506A07BBC29 CRC64;
MTEMSGADMV VQALVDLGVD TVFGYPGGAV LPIYDALYKH PTIKHVLVRH EQAATHAAEG
YARSTGKPGV VLVTSGPGAT NAVTGITDAL LDSIPMVVLT GQVSTALIGT DAFQECDTVG
ITRHCTKHNY LVMDPERLGP ILHEAFHIAT HGRPGPVVID IPKNVQVATG EYVVPENILH
NSYRPQVEPD GDAIARAVAM IAAAERPVFY TGGGVINAGP AASAALRQLV ALTGAPVTST
LMGLGAFPSD DEKWLGMLGM HGTYEANMAM NRADLIIAVG ARFDDRVTGR LDAFSPDSKK
IHIDIDRSSI NKIVPVDLAI VGDAGRALAA IVADWQAAGH KARDLGEWWR RVDGWRATRC
LDFPEKKEAD AEIMPQRAVK ALFDATRGRD PIVTTEVGQH QMWAAQHFGF AEPNRWLTSG
GLGTMGYGFP AAVGAQIANP DRLVICIAGE ASLQMNIQEM GTVAQYRLPV KIFILNNEWM
GMVRQWQELT YESRYSNSYS DSLPDFVKLA DAYGWTGLRI DTLGELEAGI QTMLDTPGPV
IVDCRVAKLA NCFPMIPSGA AHTEMLLQPS DVTGTMDDEA KALV
//
