ID D2Q863_BIFDB Unreviewed; 621 AA.
AC D2Q863;
DT 02-MAR-2010, integrated into UniProtKB/TrEMBL.
DT 02-MAR-2010, sequence version 1.
DT 24-JAN-2024, entry version 80.
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:ADB08999.1};
GN OrderedLocusNames=BDP_0319 {ECO:0000313|EMBL:ADB08999.1};
OS Bifidobacterium dentium (strain ATCC 27534 / DSM 20436 / JCM 1195 / Bd1).
OC Bacteria; Actinomycetota; Actinomycetes; Bifidobacteriales;
OC Bifidobacteriaceae; Bifidobacterium.
OX NCBI_TaxID=401473 {ECO:0000313|EMBL:ADB08999.1, ECO:0000313|Proteomes:UP000008693};
RN [1] {ECO:0000313|EMBL:ADB08999.1, ECO:0000313|Proteomes:UP000008693}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 27534 / DSM 20436 / JCM 1195 / Bd1
RC {ECO:0000313|Proteomes:UP000008693};
RX PubMed=20041198; DOI=10.1371/journal.pgen.1000785;
RA Ventura M., Turroni F., Zomer A., Foroni E., Giubellini V., Bottacini F.,
RA Canchaya C., Claesson M.J., He F., Mantzourani M., Mulas L., Ferrarini A.,
RA Gao B., Delledonne M., Henrissat B., Coutinho P., Oggioni M., Gupta R.S.,
RA Zhang Z., Beighton D., Fitzgerald G.F., O'Toole P.W., van Sinderen D.;
RT "The Bifidobacterium dentium Bd1 genome sequence reflects its genetic
RT adaptation to the human oral cavity.";
RL PLoS Genet. 5:E1000785-E1000785(2009).
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|ARBA:ARBA00000673,
CC 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; CP001750; ADB08999.1; -; Genomic_DNA.
DR AlphaFoldDB; D2Q863; -.
DR STRING; 401473.BDP_0319; -.
DR KEGG; bde:BDP_0319; -.
DR eggNOG; COG0028; Bacteria.
DR HOGENOM; CLU_013748_1_2_11; -.
DR OMA; CFGTSGP; -.
DR UniPathway; UPA00047; UER00055.
DR UniPathway; UPA00049; UER00059.
DR Proteomes; UP000008693; 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:0016491; F:oxidoreductase activity; IEA:UniProtKB-KW.
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, CHLOROPLASTIC; 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}; FAD {ECO:0000256|ARBA:ARBA00022827};
KW Flavoprotein {ECO:0000256|ARBA:ARBA00022630};
KW Magnesium {ECO:0000256|RuleBase:RU003591};
KW Metal-binding {ECO:0000256|RuleBase:RU003591};
KW Oxidoreductase {ECO:0000313|EMBL:ADB08999.1};
KW Reference proteome {ECO:0000313|Proteomes:UP000008693};
KW Thiamine pyrophosphate {ECO:0000256|RuleBase:RU003591};
KW Transferase {ECO:0000256|RuleBase:RU003591}.
FT DOMAIN 31..146
FT /note="Thiamine pyrophosphate enzyme N-terminal TPP-
FT binding"
FT /evidence="ECO:0000259|Pfam:PF02776"
FT DOMAIN 222..356
FT /note="Thiamine pyrophosphate enzyme central"
FT /evidence="ECO:0000259|Pfam:PF00205"
FT DOMAIN 420..583
FT /note="Thiamine pyrophosphate enzyme TPP-binding"
FT /evidence="ECO:0000259|Pfam:PF02775"
SQ SEQUENCE 621 AA; 67272 MW; 7333C44F2DB9D829 CRC64;
MVLPTPLQAF SGMPKASANT EKQTIVDGEK MTGAEALVRS LEDLGVQDVF GIPGGAILPV
YHAIKDDTKF RFVLMRHEQA AGHAAEGYAV ATGRVGVCIV TSGPGATNMI TPIADANMDS
IPLVVITGQV GVNAIGTDAF QEADIVGATY PVVKHSYLVT RAQDIPRVLA EAHYIARSGR
PGPVVVDITK TAQTGDMYYS WPQRMILPGY NPTTKAHGRV LSDAAKLFEQ SYRPVLYVGG
GAVRSDAGEL VKELAEITDA PIVTTLPARG IVPDSDPKVL GMLGMHGTIA ATGAVQRCDL
LVAIGARFDD RVTGKLDAFA PGARVIHIDI DPAEIGKNRQ PDVPIVGDVA TVLKDLIPEI
KREQAMHGKP DISHWWEVIN KWVEDYPIKW EQPTDGSLAP QWVVKQLSVM ADPDTIWVSG
VGQHQMWATQ IIEFDKPHSW ISSGGLGTMG FGLPAAIGAR VGSAREFADK KPVWLIDGDG
SFQMTSEELA TAFLDRTPIK IALLNNSVYG MVRQWQTLFY EHHYSATNLL DGENTPDIMD
VPDFVKLAEA YGCVGMRAFT EEEAIECIKK ANAINDRPVL IDFRVWKDAM VWPMVAAGAS
NDDVTYMPGI KPLQRAAAEN E
//