ID Q9ST68_SOLTU Unreviewed; 470 AA.
AC Q9ST68;
DT 01-MAY-2000, integrated into UniProtKB/TrEMBL.
DT 01-MAY-2000, 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=ICDH-2 {ECO:0000313|EMBL:CAA63220.1};
OS Solanum tuberosum (Potato).
OC Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC asterids; lamiids; Solanales; Solanaceae; Solanoideae; Solaneae; Solanum.
OX NCBI_TaxID=4113 {ECO:0000313|EMBL:CAA63220.1};
RN [1] {ECO:0000313|EMBL:CAA63220.1}
RP NUCLEOTIDE SEQUENCE.
RA Nast G., Willmitzer L., Mueller-Roeber B.;
RL Submitted (OCT-1995) 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; X92486; CAA63220.1; -; mRNA.
DR RefSeq; NP_001275253.1; NM_001288324.1.
DR AlphaFoldDB; Q9ST68; -.
DR GeneID; 102598317; -.
DR KEGG; sot:102598317; -.
DR OrthoDB; 423at2759; -.
DR ExpressionAtlas; Q9ST68; baseline.
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:SF5; ISOCITRATE DEHYDROGENASE [NADP], CHLOROPLASTIC_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 2: Evidence at transcript level;
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 Tricarboxylic acid cycle {ECO:0000256|PIRNR:PIRNR000108}.
FT DOMAIN 67..456
FT /note="Isopropylmalate dehydrogenase-like"
FT /evidence="ECO:0000259|SMART:SM01329"
FT BINDING 135
FT /ligand="D-threo-isocitrate"
FT /ligand_id="ChEBI:CHEBI:15562"
FT /evidence="ECO:0000256|PIRSR:PIRSR000108-2"
FT BINDING 152..158
FT /ligand="D-threo-isocitrate"
FT /ligand_id="ChEBI:CHEBI:15562"
FT /evidence="ECO:0000256|PIRSR:PIRSR000108-2"
FT BINDING 167
FT /ligand="D-threo-isocitrate"
FT /ligand_id="ChEBI:CHEBI:15562"
FT /evidence="ECO:0000256|PIRSR:PIRSR000108-2"
FT BINDING 190
FT /ligand="D-threo-isocitrate"
FT /ligand_id="ChEBI:CHEBI:15562"
FT /evidence="ECO:0000256|PIRSR:PIRSR000108-2"
FT BINDING 309
FT /ligand="Mn(2+)"
FT /ligand_id="ChEBI:CHEBI:29035"
FT /evidence="ECO:0000256|PIRSR:PIRSR000108-3"
FT BINDING 332
FT /ligand="Mn(2+)"
FT /ligand_id="ChEBI:CHEBI:29035"
FT /evidence="ECO:0000256|PIRSR:PIRSR000108-3"
FT SITE 197
FT /note="Critical for catalysis"
FT /evidence="ECO:0000256|PIRSR:PIRSR000108-1"
FT SITE 269
FT /note="Critical for catalysis"
FT /evidence="ECO:0000256|PIRSR:PIRSR000108-1"
SQ SEQUENCE 470 AA; 52606 MW; BA81CF457806CEBD CRC64;
MAGVASFVSS SSASASSIAS KKLYFQVNSN RQLFNSRVSL TTRIPNASIR CFASSSGPTS
KIRVQNPIVE MDGDEMTRVI WKMIKDKLIY PYLELDTKYY DLGILNRDAT DDQVTVESAE
ATLKYNVAVK CATITPDETR VKEFGLKSMW KSPNGTIRNI LNGTVFREPI LCTNIPRIVP
GWKKPICIGR HAFGDQYRAT DRIINGPGKL KMVFVPENGE SPMELDVYDF KGPGIALAMY
NVDQSIRAFA ESSMSMAFSK KWPLYLSTKN TILKKYDGRF KDIFQEVYEE KWKQQFEEHS
IWYEHRLIDD MVAYALKSEG GYVWACKNYD GDVQSDLLAQ GFGSLGLMTS ILLSSDGKTL
EAEAAHGTVT IHFRLHQKGQ ETSTNSVASI FAWTKGLGHR AQLDGNQKLL EFVHTLEASC
IGTIESGKMT NLAILAHGSK VSREFYLNTE EFIDAVAQKL QEKLHASVPI
//
