ID E7S7J0_9STRE Unreviewed; 566 AA.
AC E7S7J0;
DT 05-APR-2011, integrated into UniProtKB/TrEMBL.
DT 05-APR-2011, sequence version 1.
DT 27-MAR-2024, entry version 62.
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 Name=ilvB {ECO:0000313|EMBL:EFW00434.1};
GN ORFNames=HMPREF9421_0025 {ECO:0000313|EMBL:EFW00434.1};
OS Streptococcus australis ATCC 700641.
OC Bacteria; Bacillota; Bacilli; Lactobacillales; Streptococcaceae;
OC Streptococcus.
OX NCBI_TaxID=888833 {ECO:0000313|EMBL:EFW00434.1, ECO:0000313|Proteomes:UP000002814};
RN [1] {ECO:0000313|EMBL:EFW00434.1, ECO:0000313|Proteomes:UP000002814}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 700641 {ECO:0000313|EMBL:EFW00434.1,
RC ECO:0000313|Proteomes:UP000002814};
RA Muzny D., Qin X., Deng J., Jiang H., Liu Y., Qu J., Song X.-Z., Zhang L.,
RA Thornton R., Coyle M., Francisco L., Jackson L., Javaid M., Korchina V.,
RA Kovar C., Mata R., Mathew T., Ngo R., Nguyen L., Nguyen N., Okwuonu G.,
RA Ongeri F., Pham C., Simmons D., Wilczek-Boney K., Hale W., Jakkamsetti A.,
RA Pham P., Ruth R., San Lucas F., Warren J., Zhang J., Zhao Z., Zhou C.,
RA Zhu D., Lee S., Bess C., Blankenburg K., Forbes L., Fu Q., Gubbala S.,
RA Hirani K., Jayaseelan J.C., Lara F., Munidasa M., Palculict T., Patil S.,
RA Pu L.-L., Saada N., Tang L., Weissenberger G., Zhu Y., Hemphill L.,
RA Shang Y., Youmans B., Ayvaz T., Ross M., Santibanez J., Aqrawi P.,
RA Gross S., Joshi V., Fowler G., Nazareth L., Reid J., Worley K.,
RA Petrosino J., Highlander S., Gibbs R.;
RL Submitted (DEC-2010) 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:EFW00434.1}.
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DR EMBL; AEQR01000001; EFW00434.1; -; Genomic_DNA.
DR RefSeq; WP_006594977.1; NZ_GL636091.1.
DR AlphaFoldDB; E7S7J0; -.
DR PATRIC; fig|888833.12.peg.1631; -.
DR eggNOG; COG0028; Bacteria.
DR HOGENOM; CLU_013748_1_2_9; -.
DR UniPathway; UPA00047; UER00055.
DR UniPathway; UPA00049; UER00059.
DR Proteomes; UP000002814; 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:UP000002814};
KW Thiamine pyrophosphate {ECO:0000256|RuleBase:RU003591};
KW Transferase {ECO:0000256|RuleBase:RU003591, ECO:0000313|EMBL:EFW00434.1}.
FT DOMAIN 11..126
FT /note="Thiamine pyrophosphate enzyme N-terminal TPP-
FT binding"
FT /evidence="ECO:0000259|Pfam:PF02776"
FT DOMAIN 200..335
FT /note="Thiamine pyrophosphate enzyme central"
FT /evidence="ECO:0000259|Pfam:PF00205"
FT DOMAIN 391..538
FT /note="Thiamine pyrophosphate enzyme TPP-binding"
FT /evidence="ECO:0000259|Pfam:PF02775"
SQ SEQUENCE 566 AA; 61619 MW; DC59055993D93E31 CRC64;
MEKITLETAK TGSELVLETL RDLGIDTIFG YPGGAVLPLY DAIYSFKGIK HILGRHEQGC
LHEAEGYAKS TGKLGVAVVT SGPGATNAIT GIADAMSDSV PLLVFTGQVN RSGIGKDAFQ
EADIVGITMP ITKYNYQVRE TADIPRVITE AVHIATTGRP GPVVIDLPKD VSALETDYIY
NPAINIPSYQ PTIEPNELQI KKILKQLGKA KKPVLLVGGG VSYAEAADEL VALAERYQIP
VVTSLLGQGT IATNHPLFLG MGGMHGSFAA NIAMTEADFM ISIGCRFDDR LTGNPKTFAK
NAKVAHIDID PAEIGKIIAV DIPVVGDAKK ALKQLLAEPV VHTNTEKWVE KVTQDKNRVR
SYDKKERVVQ PQAVIERVGE LTKGDAIVVT DVGQHQMWAA QYYPYQNERQ LVTSGGLGTM
GFGVPAAIGA KIANPDKEVV LFVGDGGFQM TNQELAILNV YKIPIKVIML NNHSLGMVRQ
WQEAFYDGRT SESVFETLPD FQLMAQAYGI KNYKFDNPET LEKDLEVITE DVPMFIEIDI
SRKEHVLPMV PAGKSNHEML GVKFNA
//
