ID A0A0J7Y422_9SPHN Unreviewed; 583 AA.
AC A0A0J7Y422;
DT 14-OCT-2015, integrated into UniProtKB/TrEMBL.
DT 14-OCT-2015, sequence version 1.
DT 27-MAR-2024, entry version 43.
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=V473_10060 {ECO:0000313|EMBL:KMS58432.1};
OS Sphingobium cupriresistens LL01.
OC Bacteria; Pseudomonadota; Alphaproteobacteria; Sphingomonadales;
OC Sphingomonadaceae; Sphingobium.
OX NCBI_TaxID=1420583 {ECO:0000313|EMBL:KMS58432.1, ECO:0000313|Proteomes:UP000052232};
RN [1] {ECO:0000313|EMBL:KMS58432.1, ECO:0000313|Proteomes:UP000052232}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=LL01 {ECO:0000313|EMBL:KMS58432.1,
RC ECO:0000313|Proteomes:UP000052232};
RX PubMed=25850427; DOI=10.1534/g3.114.015933;
RA Pearce S.L., Oakeshott J.G., Pandey G.;
RT "Insights into Ongoing Evolution of the Hexachlorocyclohexane Catabolic
RT Pathway from Comparative Genomics of Ten Sphingomonadaceae Strains.";
RL G3 (Bethesda) 5:1081-1094(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}.
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:KMS58432.1}.
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DR EMBL; JACT01000001; KMS58432.1; -; Genomic_DNA.
DR RefSeq; WP_066603116.1; NZ_KQ130434.1.
DR AlphaFoldDB; A0A0J7Y422; -.
DR STRING; 1420583.V473_10060; -.
DR PATRIC; fig|1420583.3.peg.2023; -.
DR UniPathway; UPA00047; UER00055.
DR UniPathway; UPA00049; UER00059.
DR Proteomes; UP000052232; 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 Reference proteome {ECO:0000313|Proteomes:UP000052232};
KW Thiamine pyrophosphate {ECO:0000256|RuleBase:RU003591};
KW Transferase {ECO:0000256|RuleBase:RU003591, ECO:0000313|EMBL:KMS58432.1}.
FT DOMAIN 5..119
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 396..543
FT /note="Thiamine pyrophosphate enzyme TPP-binding"
FT /evidence="ECO:0000259|Pfam:PF02775"
SQ SEQUENCE 583 AA; 62605 MW; 9B4AC36088B9C4A9 CRC64;
MAEKSGADIL VECLIDLGVE VVFGYPGGAV LPIYDALYNH PTIKHVLVRH EQGATHMAEG
YARSTGKPGV VLVTSGPGAT NAVTGITDAL MDSIPMVVIT GQVPTQLIGT DAFQEADTIG
ITRHCSKHNY LVKTPGKLAE VIHEAFHIAT TGRPGPVVVD IPKNVQIATA PYAKPQLKVH
ASYRPQTKAD AAGIDAAVEM LAAAERPVFY TGGGVINSGP QASALLRELA ALTGAPVTST
LMGLGAFPAS SEQWLGMLGM HGTFEANWAM NQADLILCIG ARFDDRVTGR LDAFAPGSRK
VHIDIDRSSI NKIVDVDVAI VADVASALDD MIALWKQRGH QKADLTQWWS RIDGWRAKRS
LDYAENGVEI MPQRAIANLY AATQATGKDV IITTEVGQHQ MWAAQHFGFD APNKWLTSGG
LGTMGYGFPA AIGAQMGNPD SITICIAGDA SIQMNIQELG TASQYRLPVK IFILNNEYMG
MVRQWQELTY ESRYSNSYSD SLPDFVKLGE AYGWTGIRIE GPQELEAGIR QMLETDGPVI
VDCRVAKMSN CFPMIPSGAS HTDMLLDPNQ IAGVMSDEAK ALV
//
