ID A0A0M0BZU5_9ARCH Unreviewed; 566 AA.
AC A0A0M0BZU5;
DT 11-NOV-2015, integrated into UniProtKB/TrEMBL.
DT 11-NOV-2015, sequence version 1.
DT 24-JAN-2024, entry version 38.
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=AC479_02760 {ECO:0000313|EMBL:KON33959.1};
OS miscellaneous Crenarchaeota group-6 archaeon AD8-1.
OC Archaea; Candidatus Bathyarchaeota; Candidatus Bathyarchaeia.
OX NCBI_TaxID=1685126 {ECO:0000313|EMBL:KON33959.1, ECO:0000313|Proteomes:UP000037259};
RN [1] {ECO:0000313|EMBL:KON33959.1, ECO:0000313|Proteomes:UP000037259}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=AD8-1 {ECO:0000313|EMBL:KON33959.1};
RA Lazar C.S., Baker B.J., Seitz K.W., Hyde A.S., Dick G.J., Hinrichs K.-U.,
RA Teske A.P.;
RT "New insights into the roles of widespread benthic archaea in carbon and
RT nitrogen cycling.";
RL Submitted (JUN-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:KON33959.1}.
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DR EMBL; LFWW01000010; KON33959.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A0M0BZU5; -.
DR STRING; 1685126.AC479_02760; -.
DR PATRIC; fig|1685126.3.peg.342; -.
DR UniPathway; UPA00047; UER00055.
DR UniPathway; UPA00049; UER00059.
DR Proteomes; UP000037259; 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:0044272; P:sulfur compound biosynthetic process; IEA:UniProt.
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:SF169; 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:KON33959.1}.
FT DOMAIN 4..124
FT /note="Thiamine pyrophosphate enzyme N-terminal TPP-
FT binding"
FT /evidence="ECO:0000259|Pfam:PF02776"
FT DOMAIN 199..333
FT /note="Thiamine pyrophosphate enzyme central"
FT /evidence="ECO:0000259|Pfam:PF00205"
FT DOMAIN 394..541
FT /note="Thiamine pyrophosphate enzyme TPP-binding"
FT /evidence="ECO:0000259|Pfam:PF02775"
SQ SEQUENCE 566 AA; 60892 MW; 9B83EBC19CAF8734 CRC64;
MTEMSGAKAI IKSLEKQKVE VIFGILGGAV LPIYDHFCNS EIRHILCRHE QGAIHAAEGY
ARASGKPGVC MATSGPGATN LVTGIANAYM DSAPVVALTG QVPTTSKNTT YMIGRDSFQE
ADIVGITSPI TKYNHQIQTV AEIPEIIKNA FYIATTGRPG PVLIDVPKNL QSEVAEMVFS
NKIRIRGYKP KTKPHPMQIE RAVKLLMSAE KPVILSGGGV ITSNATHELT KTAEILMAPV
ATSFMGKGSI TENHPLSVGS IGMHGNPVAN KLLCEADVVL AVGTRFSDRA TGTVNTFCAA
AKIIHIDIDA AEIGKNIEVN VPIVADARKT LKEINNKIIK KLKNKDAPWA IHVKELKQTL
NLPPDNNEKE IKPKAILYEL RKLLPNDAIV ATEVGQNQMW SALYFNSLKP RTFISSGGLG
TMGFGFPASI GAKVACPNKV VVDIAGDGSF RMTEQELATS VTEQIPVIVV VLNNSVLGMV
AQWQRLFFRG RYSAIKLGSS PDFVKLAEAY GAQGLRARSL PEFKKAVKEA LNSDITTVID
VPISSEENVD PMVPPGCGIN EQVGNY
//