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ILVD_FRASN
ID   ILVD_FRASN              Reviewed;         617 AA.
AC   A8L8S7;
DT   24-MAR-2009, integrated into UniProtKB/Swiss-Prot.
DT   04-DEC-2007, sequence version 1.
DT   03-AUG-2022, entry version 77.
DE   RecName: Full=Dihydroxy-acid dehydratase {ECO:0000255|HAMAP-Rule:MF_00012};
DE            Short=DAD {ECO:0000255|HAMAP-Rule:MF_00012};
DE            EC=4.2.1.9 {ECO:0000255|HAMAP-Rule:MF_00012};
GN   Name=ilvD {ECO:0000255|HAMAP-Rule:MF_00012};
GN   OrderedLocusNames=Franean1_7305;
OS   Frankia sp. (strain EAN1pec).
OC   Bacteria; Actinobacteria; Frankiales; Frankiaceae; Frankia;
OC   unclassified Frankia.
OX   NCBI_TaxID=298653;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=EAN1pec;
RX   PubMed=17151343; DOI=10.1101/gr.5798407;
RA   Normand P., Lapierre P., Tisa L.S., Gogarten J.P., Alloisio N.,
RA   Bagnarol E., Bassi C.A., Berry A.M., Bickhart D.M., Choisne N., Couloux A.,
RA   Cournoyer B., Cruveiller S., Daubin V., Demange N., Francino M.P.,
RA   Goltsman E., Huang Y., Kopp O.R., Labarre L., Lapidus A., Lavire C.,
RA   Marechal J., Martinez M., Mastronunzio J.E., Mullin B.C., Niemann J.,
RA   Pujic P., Rawnsley T., Rouy Z., Schenowitz C., Sellstedt A., Tavares F.,
RA   Tomkins J.P., Vallenet D., Valverde C., Wall L.G., Wang Y., Medigue C.,
RA   Benson D.R.;
RT   "Genome characteristics of facultatively symbiotic Frankia sp. strains
RT   reflect host range and host plant biogeography.";
RL   Genome Res. 17:7-15(2007).
CC   -!- FUNCTION: Functions in the biosynthesis of branched-chain amino acids.
CC       Catalyzes the dehydration of (2R,3R)-2,3-dihydroxy-3-methylpentanoate
CC       (2,3-dihydroxy-3-methylvalerate) into 2-oxo-3-methylpentanoate (2-oxo-
CC       3-methylvalerate) and of (2R)-2,3-dihydroxy-3-methylbutanoate (2,3-
CC       dihydroxyisovalerate) into 2-oxo-3-methylbutanoate (2-oxoisovalerate),
CC       the penultimate precursor to L-isoleucine and L-valine, respectively.
CC       {ECO:0000255|HAMAP-Rule:MF_00012}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=(2R)-2,3-dihydroxy-3-methylbutanoate = 3-methyl-2-oxobutanoate
CC         + H2O; Xref=Rhea:RHEA:24809, ChEBI:CHEBI:11851, ChEBI:CHEBI:15377,
CC         ChEBI:CHEBI:49072; EC=4.2.1.9; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_00012};
CC       PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:24810;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00012};
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=(2R,3R)-2,3-dihydroxy-3-methylpentanoate = (S)-3-methyl-2-
CC         oxopentanoate + H2O; Xref=Rhea:RHEA:27694, ChEBI:CHEBI:15377,
CC         ChEBI:CHEBI:35146, ChEBI:CHEBI:49258; EC=4.2.1.9;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00012};
CC       PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:27695;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00012};
CC   -!- COFACTOR:
CC       Name=[2Fe-2S] cluster; Xref=ChEBI:CHEBI:190135;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00012};
CC       Note=Binds 1 [2Fe-2S] cluster per subunit. This cluster acts as a Lewis
CC       acid cofactor. {ECO:0000255|HAMAP-Rule:MF_00012};
CC   -!- COFACTOR:
CC       Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00012};
CC   -!- PATHWAY: Amino-acid biosynthesis; L-isoleucine biosynthesis; L-
CC       isoleucine from 2-oxobutanoate: step 3/4. {ECO:0000255|HAMAP-
CC       Rule:MF_00012}.
CC   -!- PATHWAY: Amino-acid biosynthesis; L-valine biosynthesis; L-valine from
CC       pyruvate: step 3/4. {ECO:0000255|HAMAP-Rule:MF_00012}.
CC   -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_00012}.
CC   -!- SIMILARITY: Belongs to the IlvD/Edd family. {ECO:0000255|HAMAP-
CC       Rule:MF_00012}.
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DR   EMBL; CP000820; ABW16624.1; -; Genomic_DNA.
DR   RefSeq; WP_020464679.1; NC_009921.1.
DR   AlphaFoldDB; A8L8S7; -.
DR   SMR; A8L8S7; -.
DR   STRING; 298653.Franean1_7305; -.
DR   EnsemblBacteria; ABW16624; ABW16624; Franean1_7305.
DR   KEGG; fre:Franean1_7305; -.
DR   eggNOG; COG0129; Bacteria.
DR   HOGENOM; CLU_014271_4_2_11; -.
DR   OMA; TQGRNMA; -.
DR   OrthoDB; 193579at2; -.
DR   UniPathway; UPA00047; UER00057.
DR   UniPathway; UPA00049; UER00061.
DR   GO; GO:0051537; F:2 iron, 2 sulfur cluster binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0004160; F:dihydroxy-acid dehydratase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0000287; F:magnesium ion binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0009097; P:isoleucine biosynthetic process; IEA:UniProtKB-UniRule.
DR   GO; GO:0009099; P:valine biosynthetic process; IEA:UniProtKB-UniRule.
DR   Gene3D; 3.50.30.80; -; 1.
DR   HAMAP; MF_00012; IlvD; 1.
DR   InterPro; IPR042096; Dihydro-acid_dehy_C.
DR   InterPro; IPR004404; DihydroxyA_deHydtase.
DR   InterPro; IPR000581; DiOHA_6PGluconate_deHydtase.
DR   InterPro; IPR020558; DiOHA_6PGluconate_deHydtase_CS.
DR   InterPro; IPR037237; IlvD/EDD_N.
DR   Pfam; PF00920; ILVD_EDD; 1.
DR   SUPFAM; SSF143975; SSF143975; 1.
DR   TIGRFAMs; TIGR00110; ilvD; 1.
DR   PROSITE; PS00886; ILVD_EDD_1; 1.
DR   PROSITE; PS00887; ILVD_EDD_2; 1.
PE   3: Inferred from homology;
KW   2Fe-2S; Amino-acid biosynthesis; Branched-chain amino acid biosynthesis;
KW   Iron; Iron-sulfur; Lyase; Magnesium; Metal-binding.
FT   CHAIN           1..617
FT                   /note="Dihydroxy-acid dehydratase"
FT                   /id="PRO_1000089384"
FT   ACT_SITE        520
FT                   /note="Proton acceptor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00012"
FT   BINDING         81
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00012"
FT   BINDING         122
FT                   /ligand="[2Fe-2S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:190135"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00012"
FT   BINDING         123
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00012"
FT   BINDING         124
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /note="via carbamate group"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00012"
FT   BINDING         197
FT                   /ligand="[2Fe-2S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:190135"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00012"
FT   BINDING         494
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00012"
FT   MOD_RES         124
FT                   /note="N6-carboxylysine"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00012"
SQ   SEQUENCE   617 AA;  64400 MW;  58C7BA066C16A95E CRC64;
     MPALRSRTTT HGRNMAGARA LWRATGMTDD DFGKPIVAIA NSFTQFVPGH VHLRDLGKIV
     ADAVAGSGGV AKEFNTIAVD DGIAMGHGGM LYSLPSREII ADSVEYMVNA HCADALVCIS
     NCDKITPGML IAALRLNIPT VFVSGGAMES GHAVVTGGIV RSRLDLIDAM TAAVNPDVSD
     ADLDTIERSA CPTCGSCSGM FTANSMNCLT EALGLALPGN GSTLATAAAR RGLFVEAGRL
     VVDLARRYYE KDDEAVLPRS IASAAAFRNA FAVDVAMGGS TNTVLHLLAA AVEAGVEVTL
     DDIDQVSRSV ACLCKVAPSS TDYYMEDVHR AGGIPAILGE LDRGGLVDPN VHSVHAASLR
     EFLDRWDVRG ADPSPDAIEL FHAAPGGVRT VEPFGSTNRW DTLDTDAKNG CIRSVEHAYS
     ADGGLAVLRG NLAPDGAVVK TAGVDESQWT FRGPALVVES QEAAVDAILN KVVKAGDVII
     VRYEGPRGGP GMQEMLYPTA FLKGRGLGPK CALITDGRFS GGSSGLSIGH VSPEAAHGGP
     IALVRDGDLV EIDIPRRRID LLVPDAELAA RRAEIEANGG YHPANRERVV SAALRAYAAM
     ATSASTGAAR DVRLITG
 
 
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