ID   Q165V0_ROSDO            Unreviewed;       404 AA.
AC   Q165V0;
DT   25-JUL-2006, integrated into UniProtKB/TrEMBL.
DT   25-JUL-2006, sequence version 1.
DT   27-MAR-2024, entry version 112.
DE   RecName: Full=Isocitrate dehydrogenase [NADP] {ECO:0000256|PIRNR:PIRNR000108};
DE            EC=1.1.1.42 {ECO:0000256|PIRNR:PIRNR000108};
GN   Name=icd {ECO:0000313|EMBL:ABG32243.1};
GN   OrderedLocusNames=RD1_2704 {ECO:0000313|EMBL:ABG32243.1};
OS   Roseobacter denitrificans (strain ATCC 33942 / OCh 114) (Erythrobacter sp.
OS   (strain OCh 114)) (Roseobacter denitrificans).
OC   Bacteria; Pseudomonadota; Alphaproteobacteria; Rhodobacterales;
OC   Roseobacteraceae; Roseobacter.
OX   NCBI_TaxID=375451 {ECO:0000313|EMBL:ABG32243.1, ECO:0000313|Proteomes:UP000007029};
RN   [1] {ECO:0000313|EMBL:ABG32243.1, ECO:0000313|Proteomes:UP000007029}
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 33942 / OCh 114 {ECO:0000313|Proteomes:UP000007029};
RX   PubMed=17098896; DOI=10.1128/JB.01390-06;
RA   Swingley W.D., Sadekar S., Mastrian S.D., Matthies H.J., Hao J., Ramos H.,
RA   Acharya C.R., Conrad A.L., Taylor H.L., Dejesa L.C., Shah M.K.,
RA   O'huallachain M.E., Lince M.T., Blankenship R.E., Beatty J.T.,
RA   Touchman J.W.;
RT   "The complete genome sequence of Roseobacter denitrificans reveals a
RT   mixotrophic rather than photosynthetic metabolism.";
RL   J. Bacteriol. 189:683-690(2007).
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|PIRNR:PIRNR000108};
CC   -!- COFACTOR:
CC       Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC         Evidence={ECO:0000256|PIRNR:PIRNR000108,
CC         ECO:0000256|PIRSR:PIRSR000108-3};
CC       Name=Mn(2+); Xref=ChEBI:CHEBI:29035;
CC         Evidence={ECO:0000256|PIRNR:PIRNR000108,
CC         ECO:0000256|PIRSR:PIRSR000108-3};
CC       Note=Binds 1 Mg(2+) or Mn(2+) ion per subunit.
CC       {ECO:0000256|PIRNR:PIRNR000108, ECO:0000256|PIRSR:PIRSR000108-3};
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,
CC       ECO:0000256|PIRNR:PIRNR000108}.
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DR   EMBL; CP000362; ABG32243.1; -; Genomic_DNA.
DR   RefSeq; WP_011568860.1; NZ_FOOO01000002.1.
DR   AlphaFoldDB; Q165V0; -.
DR   STRING; 375451.RD1_2704; -.
DR   KEGG; rde:RD1_2704; -.
DR   eggNOG; COG0538; Bacteria.
DR   HOGENOM; CLU_023296_1_1_5; -.
DR   OrthoDB; 9765655at2; -.
DR   Proteomes; UP000007029; Chromosome.
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:0006102; P:isocitrate metabolic process; IEA:InterPro.
DR   GO; GO:0006099; P:tricarboxylic acid cycle; IEA:UniProtKB-KW.
DR   Gene3D; 3.40.718.10; Isopropylmalate Dehydrogenase; 1.
DR   InterPro; IPR019818; IsoCit/isopropylmalate_DH_CS.
DR   InterPro; IPR004790; Isocitrate_DH_NADP.
DR   InterPro; IPR024084; IsoPropMal-DH-like_dom.
DR   NCBIfam; TIGR00127; nadp_idh_euk; 1.
DR   PANTHER; PTHR11822:SF21; ISOCITRATE DEHYDROGENASE [NADP], MITOCHONDRIAL; 1.
DR   PANTHER; PTHR11822; NADP-SPECIFIC ISOCITRATE DEHYDROGENASE; 1.
DR   Pfam; PF00180; Iso_dh; 1.
DR   PIRSF; PIRSF000108; IDH_NADP; 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   Magnesium {ECO:0000256|ARBA:ARBA00022842, ECO:0000256|PIRNR:PIRNR000108};
KW   Manganese {ECO:0000256|ARBA:ARBA00023211, ECO:0000256|PIRNR:PIRNR000108};
KW   Metal-binding {ECO:0000256|ARBA:ARBA00022723,
KW   ECO:0000256|PIRNR:PIRNR000108};
KW   NADP {ECO:0000256|ARBA:ARBA00022857, ECO:0000256|PIRNR:PIRNR000108};
KW   Oxidoreductase {ECO:0000256|ARBA:ARBA00023002,
KW   ECO:0000256|PIRNR:PIRNR000108};
KW   Reference proteome {ECO:0000313|Proteomes:UP000007029};
KW   Tricarboxylic acid cycle {ECO:0000256|PIRNR:PIRNR000108}.
FT   DOMAIN          9..394
FT                   /note="Isopropylmalate dehydrogenase-like"
FT                   /evidence="ECO:0000259|SMART:SM01329"
FT   BINDING         75..77
FT                   /ligand="NADP(+)"
FT                   /ligand_id="ChEBI:CHEBI:58349"
FT                   /evidence="ECO:0000256|PIRSR:PIRSR000108-4"
FT   BINDING         77
FT                   /ligand="D-threo-isocitrate"
FT                   /ligand_id="ChEBI:CHEBI:15562"
FT                   /evidence="ECO:0000256|PIRSR:PIRSR000108-2"
FT   BINDING         82
FT                   /ligand="NADP(+)"
FT                   /ligand_id="ChEBI:CHEBI:58349"
FT                   /evidence="ECO:0000256|PIRSR:PIRSR000108-4"
FT   BINDING         94..100
FT                   /ligand="D-threo-isocitrate"
FT                   /ligand_id="ChEBI:CHEBI:15562"
FT                   /evidence="ECO:0000256|PIRSR:PIRSR000108-2"
FT   BINDING         109
FT                   /ligand="D-threo-isocitrate"
FT                   /ligand_id="ChEBI:CHEBI:15562"
FT                   /evidence="ECO:0000256|PIRSR:PIRSR000108-2"
FT   BINDING         132
FT                   /ligand="D-threo-isocitrate"
FT                   /ligand_id="ChEBI:CHEBI:15562"
FT                   /evidence="ECO:0000256|PIRSR:PIRSR000108-2"
FT   BINDING         250
FT                   /ligand="Mn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29035"
FT                   /evidence="ECO:0000256|PIRSR:PIRSR000108-3"
FT   BINDING         258
FT                   /ligand="NADP(+)"
FT                   /ligand_id="ChEBI:CHEBI:58349"
FT                   /evidence="ECO:0000256|PIRSR:PIRSR000108-4"
FT   BINDING         273
FT                   /ligand="Mn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29035"
FT                   /evidence="ECO:0000256|PIRSR:PIRSR000108-3"
FT   BINDING         308..313
FT                   /ligand="NADP(+)"
FT                   /ligand_id="ChEBI:CHEBI:58349"
FT                   /evidence="ECO:0000256|PIRSR:PIRSR000108-4"
FT   BINDING         326
FT                   /ligand="NADP(+)"
FT                   /ligand_id="ChEBI:CHEBI:58349"
FT                   /evidence="ECO:0000256|PIRSR:PIRSR000108-4"
FT   SITE            139
FT                   /note="Critical for catalysis"
FT                   /evidence="ECO:0000256|PIRSR:PIRSR000108-1"
FT   SITE            210
FT                   /note="Critical for catalysis"
FT                   /evidence="ECO:0000256|PIRSR:PIRSR000108-1"
SQ   SEQUENCE   404 AA;  45089 MW;  549FC25A064C89B6 CRC64;
     MTKIKVQNPV VELDGDEMTR IIWDFIKQKL ILPYLDIDLK YYDLGMESRD ATDDQITVDA
     AHAIKEHGVG VKCATITPDE ARVEEFGLKQ MWRSPNGTIR NILGGVIFRQ PIICRNVPRL
     VPGWTKPIVV GRHAYGDQYR ATDFKFPGKG KLTLKFVGED GTEIEREVFD APDSGVVMAM
     YNLDKSIIDF ARASFNYGLT LGWPVYLSTK NTILKQYDGR FLELFAQVFE AEFKEKFDAA
     GIWYEHRLID DMVASAMKWS GGYVWACKNY DGDVQSDTVA QGFGSLGLMA SVLMTPDGQV
     VESEAAHGTV TRHYRQHQKG EATSTNSIAS IYAWTGGLKH RAKLDDNDAL LNFAETLEKV
     VVDTVESGFM TKDLALLVGP DQGWLTTQGF LEKISENLNT ALAG
//