ID L1N1X3_9BACT Unreviewed; 574 AA.
AC L1N1X3;
DT 06-MAR-2013, integrated into UniProtKB/TrEMBL.
DT 06-MAR-2013, sequence version 1.
DT 24-JAN-2024, entry version 49.
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=HMPREF9151_02235 {ECO:0000313|EMBL:EKX97317.1};
OS Hoylesella saccharolytica F0055.
OC Bacteria; Bacteroidota; Bacteroidia; Bacteroidales; Prevotellaceae;
OC Hoylesella.
OX NCBI_TaxID=1127699 {ECO:0000313|EMBL:EKX97317.1, ECO:0000313|Proteomes:UP000010433};
RN [1] {ECO:0000313|EMBL:EKX97317.1, ECO:0000313|Proteomes:UP000010433}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=F0055 {ECO:0000313|EMBL:EKX97317.1,
RC ECO:0000313|Proteomes:UP000010433};
RA Weinstock G., Sodergren E., Lobos E.A., Fulton L., Fulton R., Courtney L.,
RA Fronick C., O'Laughlin M., Godfrey J., Wilson R.M., Miner T., Farmer C.,
RA Delehaunty K., Cordes M., Minx P., Tomlinson C., Chen J., Wollam A.,
RA Pepin K.H., Bhonagiri V., Zhang X., Suruliraj S., Warren W., Mitreva M.,
RA Mardis E.R., Wilson R.K.;
RL Submitted (MAY-2012) 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|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}.
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:EKX97317.1}.
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DR EMBL; AMEP01000142; EKX97317.1; -; Genomic_DNA.
DR AlphaFoldDB; L1N1X3; -.
DR STRING; 1127699.HMPREF9151_02235; -.
DR PATRIC; fig|1127699.3.peg.2044; -.
DR HOGENOM; CLU_013748_1_2_10; -.
DR UniPathway; UPA00047; UER00055.
DR UniPathway; UPA00049; UER00059.
DR Proteomes; UP000010433; 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; 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 Reference proteome {ECO:0000313|Proteomes:UP000010433};
KW Thiamine pyrophosphate {ECO:0000256|RuleBase:RU003591};
KW Transferase {ECO:0000256|RuleBase:RU003591}.
FT DOMAIN 9..127
FT /note="Thiamine pyrophosphate enzyme N-terminal TPP-
FT binding"
FT /evidence="ECO:0000259|Pfam:PF02776"
FT DOMAIN 203..337
FT /note="Thiamine pyrophosphate enzyme central"
FT /evidence="ECO:0000259|Pfam:PF00205"
FT DOMAIN 399..546
FT /note="Thiamine pyrophosphate enzyme TPP-binding"
FT /evidence="ECO:0000259|Pfam:PF02775"
SQ SEQUENCE 574 AA; 63112 MW; F39F0A53FD4650B5 CRC64;
MAMKKEIVTG AEALMRSLKA ENVEVIFGYP GGAIMPVFDA LFDYTRGAQK AFHHVLVRHE
QAAAHAAEGY ARVSGRVGVC LVTSGPGATN TLTGIADAMM DSTPIVVIAG QVGIGALGTD
AFQEVDWVGL TQPVTKWAYQ IRRPEDVAWA VSRAFYIARS GRPGPVVLDF PKNAQIHTCA
WQPASVRHIR SYDSYPLLNA EAVSEAARLI NSAQRPLALV GQGVELGEAH HELLAFLEKA
HIPAACTMMG LSALPSAHPL NMGMLGMHGN YAPNLKEQEC DVLIAIGMRF SERVTGRVDK
YACQAKVIHL DIDRSEIDKN VKTDVAVVAD CKVSLPAITK QLEEKRHDEW IESFAPLFDE
ENKKVIQPAI HPVSGALLMG EVVHAVSQAV QGDAVMVNDV GQNQMFSCRY FKYNRRRSIV
TSGGLGTMGF GLPAAIGSVF GAPHRTVCLF TGDGGIQMSI QELGTIMEQR IPVKIILLNN
NYLGNVRQWQ ELFWNKRYSF TRMLNPDYSA ICKGYGIHYD VLTDRKDLDA KIREMLNTEG
PFLLECVVRE EDNIMPMVEP GKSIDEMILE PHLK
//