ID Q5IQL0_9ESCH Unreviewed; 208 AA.
AC Q5IQL0;
DT 15-FEB-2005, integrated into UniProtKB/TrEMBL.
DT 15-FEB-2005, sequence version 1.
DT 24-JAN-2024, entry version 62.
DE RecName: Full=isocitrate dehydrogenase (NADP(+)) {ECO:0000256|ARBA:ARBA00013013};
DE EC=1.1.1.42 {ECO:0000256|ARBA:ARBA00013013};
DE Flags: Fragment;
GN Name=icdA {ECO:0000313|EMBL:AAU86508.1};
OS Escherichia albertii.
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Enterobacterales;
OC Enterobacteriaceae; Escherichia.
OX NCBI_TaxID=208962 {ECO:0000313|EMBL:AAU86508.1};
RN [1] {ECO:0000313|EMBL:AAU86508.1}
RP NUCLEOTIDE SEQUENCE.
RC STRAIN=9194 {ECO:0000313|EMBL:AAU86508.1};
RX PubMed=15629933; DOI=10.1128/JB.187.2.619-628.2005;
RA Hyma K.E., Lacher D.W., Nelson A.M., Bumbaugh A.C., Janda J.M.,
RA Strockbine N.A., Young V.B., Whittam T.S.;
RT "Evolutionary genetics of a new pathogenic Escherichia species: Escherichia
RT albertii and related Shigella boydii strains.";
RL J. Bacteriol. 187:619-628(2005).
CC -!- CATALYTIC ACTIVITY:
CC Reaction=D-threo-isocitrate + NADP(+) = 2-oxoglutarate + CO2 + NADPH;
CC Xref=Rhea:RHEA:19629, ChEBI:CHEBI:15562, ChEBI:CHEBI:16526,
CC ChEBI:CHEBI:16810, ChEBI:CHEBI:57783, ChEBI:CHEBI:58349; EC=1.1.1.42;
CC Evidence={ECO:0000256|ARBA:ARBA00023554};
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000256|PIRSR:PIRSR604439-3};
CC Name=Mn(2+); Xref=ChEBI:CHEBI:29035;
CC Evidence={ECO:0000256|PIRSR:PIRSR604439-3};
CC Note=Binds 1 Mg(2+) or Mn(2+) ion per subunit.
CC {ECO:0000256|PIRSR:PIRSR604439-3};
CC -!- COFACTOR:
CC Name=Mn(2+); Xref=ChEBI:CHEBI:29035;
CC Evidence={ECO:0000256|ARBA:ARBA00001936};
CC -!- SIMILARITY: Belongs to the isocitrate and isopropylmalate
CC dehydrogenases family. {ECO:0000256|ARBA:ARBA00007769}.
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DR EMBL; AY696895; AAU86508.1; -; Genomic_DNA.
DR AlphaFoldDB; Q5IQL0; -.
DR GO; GO:0004450; F:isocitrate dehydrogenase (NADP+) activity; IEA:UniProtKB-EC.
DR GO; GO:0000287; F:magnesium ion binding; IEA:InterPro.
DR GO; GO:0051287; F:NAD binding; IEA:InterPro.
DR GO; GO:0006097; P:glyoxylate cycle; IEA:UniProtKB-KW.
DR GO; GO:0006099; P:tricarboxylic acid cycle; IEA:InterPro.
DR Gene3D; 3.40.718.10; Isopropylmalate Dehydrogenase; 1.
DR InterPro; IPR019818; IsoCit/isopropylmalate_DH_CS.
DR InterPro; IPR004439; Isocitrate_DH_NADP_dimer_prok.
DR InterPro; IPR024084; IsoPropMal-DH-like_dom.
DR PANTHER; PTHR43504; ISOCITRATE DEHYDROGENASE [NADP]; 1.
DR PANTHER; PTHR43504:SF1; ISOCITRATE DEHYDROGENASE [NADP]; 1.
DR Pfam; PF00180; Iso_dh; 1.
DR SMART; SM01329; Iso_dh; 1.
DR SUPFAM; SSF53659; Isocitrate/Isopropylmalate dehydrogenase-like; 1.
DR PROSITE; PS00470; IDH_IMDH; 1.
PE 3: Inferred from homology;
KW Glyoxylate bypass {ECO:0000256|ARBA:ARBA00022435};
KW Magnesium {ECO:0000256|ARBA:ARBA00022842, ECO:0000256|PIRSR:PIRSR604439-3};
KW Manganese {ECO:0000256|PIRSR:PIRSR604439-3};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723};
KW NADP {ECO:0000256|ARBA:ARBA00022857};
KW Oxidoreductase {ECO:0000256|ARBA:ARBA00023002};
KW Tricarboxylic acid cycle {ECO:0000256|ARBA:ARBA00022532}.
FT DOMAIN 1..208
FT /note="Isopropylmalate dehydrogenase-like"
FT /evidence="ECO:0000259|SMART:SM01329"
FT BINDING 8
FT /ligand="substrate"
FT /evidence="ECO:0000256|PIRSR:PIRSR604439-1"
FT BINDING 32
FT /ligand="substrate"
FT /evidence="ECO:0000256|PIRSR:PIRSR604439-1"
FT BINDING 186
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|PIRSR:PIRSR604439-3"
FT SITE 39
FT /note="Critical for catalysis"
FT /evidence="ECO:0000256|PIRSR:PIRSR604439-4"
FT SITE 109
FT /note="Critical for catalysis"
FT /evidence="ECO:0000256|PIRSR:PIRSR604439-4"
FT MOD_RES 21
FT /note="N6-acetyllysine"
FT /evidence="ECO:0000256|PIRSR:PIRSR604439-5"
FT MOD_RES 121
FT /note="N6-succinyllysine"
FT /evidence="ECO:0000256|PIRSR:PIRSR604439-5"
FT NON_TER 1
FT /evidence="ECO:0000313|EMBL:AAU86508.1"
FT NON_TER 208
FT /evidence="ECO:0000313|EMBL:AAU86508.1"
SQ SEQUENCE 208 AA; 23059 MW; 96B9031D1047BB03 CRC64;
LDLYICLRPV RYYQGTPSPV KHPELTDMVI FRENSEDIYA GIEWKADSAD AEKVIKFLRE
EMGVKKIRFP EHCGIGIKPC SEEGTKRLVR AAIEYAIAND RDSVTLVHKG NIMKFTEGAF
KDWGYQLARE EFGGELIDGG PWLKVKNPNT GKEIVIKDVI ADAFLQQILL RPAEYDVIAC
MNLNGDYISD ALAAQVGGIG IAPGANIG
//