ID A0A1I0YN83_9RHOB Unreviewed; 405 AA.
AC A0A1I0YN83;
DT 22-NOV-2017, integrated into UniProtKB/TrEMBL.
DT 22-NOV-2017, sequence version 1.
DT 24-JAN-2024, entry version 24.
DE RecName: Full=Isocitrate dehydrogenase [NADP] {ECO:0000256|PIRNR:PIRNR000108};
DE EC=1.1.1.42 {ECO:0000256|PIRNR:PIRNR000108};
GN ORFNames=SAMN05421688_3228 {ECO:0000313|EMBL:SFB14672.1};
OS Poseidonocella pacifica.
OC Bacteria; Pseudomonadota; Alphaproteobacteria; Rhodobacterales;
OC Roseobacteraceae; Poseidonocella.
OX NCBI_TaxID=871651 {ECO:0000313|EMBL:SFB14672.1, ECO:0000313|Proteomes:UP000198796};
RN [1] {ECO:0000313|EMBL:SFB14672.1, ECO:0000313|Proteomes:UP000198796}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 29316 {ECO:0000313|EMBL:SFB14672.1,
RC ECO:0000313|Proteomes:UP000198796};
RA de Groot N.N.;
RL Submitted (OCT-2016) to the EMBL/GenBank/DDBJ databases.
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; FOJU01000006; SFB14672.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A1I0YN83; -.
DR STRING; 871651.SAMN05421688_3228; -.
DR OrthoDB; 9765655at2; -.
DR Proteomes; UP000198796; Unassembled WGS sequence.
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] CYTOPLASMIC; 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:UP000198796};
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 405 AA; 45378 MW; F4B70695F9D3EA55 CRC64;
MSKIKVANPI VEMDGDEMTR IIWDFIKKKL ILPYLDIDLL YYDLGIEERD RTDDQITIDA
AEKTKEVGVA VKCATITPDE GRVEEFGLKK MWRSPNGTIR NILGGVVFRK PIICNNVPRL
VPGWTKPIVV GRHAFGDQYR ATDMKFPGPG TLSMKFVGED GTVMEEEVFK APSSGVFMSM
YNLDDSIIDF ARASLNYGLD LGWPVYLSTK NTILKQYDGR FMELFQKVFD EEFADKFKEA
GITYEHRLID DMVACAMKWN GGFVWACKNY DGDVQSDTIA QGFGSLGLMT SQLMTPDGKT
VEAEAAHGTV TRHYRQHQRG EETSTNSIAS IFAWTGGLKH RAKLDDNAEL GHFAETLERV
VVDTVESGFM TKDLALLVGP DQKWLTTMGF LEKVDENLNK ALGAA
//