ILVD_ZYMMO
ID ILVD_ZYMMO Reviewed; 618 AA.
AC Q5NLJ4;
DT 07-MAR-2006, integrated into UniProtKB/Swiss-Prot.
DT 01-FEB-2005, sequence version 1.
DT 03-AUG-2022, entry version 95.
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}; OrderedLocusNames=ZMO1792;
OS Zymomonas mobilis subsp. mobilis (strain ATCC 31821 / ZM4 / CP4).
OC Bacteria; Proteobacteria; Alphaproteobacteria; Sphingomonadales;
OC Zymomonadaceae; Zymomonas.
OX NCBI_TaxID=264203;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 31821 / ZM4 / CP4;
RX PubMed=15592456; DOI=10.1038/nbt1045;
RA Seo J.-S., Chong H., Park H.S., Yoon K.-O., Jung C., Kim J.J., Hong J.H.,
RA Kim H., Kim J.-H., Kil J.-I., Park C.J., Oh H.-M., Lee J.-S., Jin S.-J.,
RA Um H.-W., Lee H.-J., Oh S.-J., Kim J.Y., Kang H.L., Lee S.Y., Lee K.J.,
RA Kang H.S.;
RT "The genome sequence of the ethanologenic bacterium Zymomonas mobilis
RT ZM4.";
RL Nat. Biotechnol. 23:63-68(2005).
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; AE008692; AAV90416.1; -; Genomic_DNA.
DR RefSeq; WP_011241527.1; NZ_CP035711.1.
DR AlphaFoldDB; Q5NLJ4; -.
DR SMR; Q5NLJ4; -.
DR STRING; 264203.ZMO1792; -.
DR EnsemblBacteria; AAV90416; AAV90416; ZMO1792.
DR GeneID; 58027495; -.
DR KEGG; zmo:ZMO1792; -.
DR eggNOG; COG0129; Bacteria.
DR HOGENOM; CLU_014271_4_2_5; -.
DR OMA; TQGRNMA; -.
DR OrthoDB; 193579at2; -.
DR UniPathway; UPA00047; UER00057.
DR UniPathway; UPA00049; UER00061.
DR Proteomes; UP000001173; Chromosome.
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; Reference proteome.
FT CHAIN 1..618
FT /note="Dihydroxy-acid dehydratase"
FT /id="PRO_0000225439"
FT ACT_SITE 518
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 195
FT /ligand="[2Fe-2S] cluster"
FT /ligand_id="ChEBI:CHEBI:190135"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00012"
FT BINDING 492
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 618 AA; 65679 MW; 706459577529DDF7 CRC64;
MPPYRSRTTT HGRNMAGARS LWRATGVKNE DFGKPIIAVA NSFTQFVPGH VHLKDMGQLV
AEEIEKAGGI AKEFNTIAID DGIAMGHGGM LYSLPSRELI ADSVEYMVNA HCADALVCIS
NCDKITPGML MASMRLNIPT VFVSGGPMEA GKAEVKGVKR ALDLIDAMVI AADDHYSDGE
VEVIEQTACA TCGSCSGMFT ANSMNCLTEA LGLSFPGNGS MLATHSDREQ LFRKAGHTIV
DMARSYYEQD DAAVLPRSIA TLEAFENAMS LDIAMGGSTN TVLHLLAVAQ EGNVPFTMAD
IDRLSRHVPC LCKVAPAKND VHMEDVHRAG GVMAILGQLD RAGLINTSLR TIHSPTLGAA
LDAWDISRDS CSEEAQLFYR AAPGGVPTQK AFSQSSRYEA LDTDREKGVI RSKNHAFSTD
GGLAVLFGNL APEGSIVKTA GVDESILKFT GKAKVYESQE AAVAGILGND VEAGEVVIVR
YEGPKGGPGM QEMLYPTSYL KSKGLGKLCA LITDGRFSGG SSGLSIGHVS PEAAEGGLIA
LVETGDTIVI DIPERIIHLD VDDAVIADRH ARMEAKGAAA WKPQNRNRPI SSALKAYAAL
TTNAARGAVR DVNQLERR
