ID A0A256BI03_9CYAN Unreviewed; 743 AA.
AC A0A256BI03;
DT 20-DEC-2017, integrated into UniProtKB/TrEMBL.
DT 20-DEC-2017, sequence version 1.
DT 24-JAN-2024, entry version 20.
DE RecName: Full=Isocitrate dehydrogenase [NADP] {ECO:0000256|PIRNR:PIRNR009407};
DE EC=1.1.1.42 {ECO:0000256|PIRNR:PIRNR009407};
DE AltName: Full=Oxalosuccinate decarboxylase {ECO:0000256|PIRNR:PIRNR009407};
GN ORFNames=B9G53_07310 {ECO:0000313|EMBL:OYQ65478.1};
OS Pseudanabaena sp. SR411.
OC Bacteria; Cyanobacteriota; Cyanophyceae; Pseudanabaenales;
OC Pseudanabaenaceae; Pseudanabaena.
OX NCBI_TaxID=1980935 {ECO:0000313|EMBL:OYQ65478.1, ECO:0000313|Proteomes:UP000215660};
RN [1] {ECO:0000313|EMBL:OYQ65478.1, ECO:0000313|Proteomes:UP000215660}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=SR411 {ECO:0000313|EMBL:OYQ65478.1,
RC ECO:0000313|Proteomes:UP000215660};
RA Stowe E.L., Hundermark E.L., Stowe W.;
RT "Novel uncharacterized cyanobacterium from Susquehanna River.";
RL Submitted (APR-2017) 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:PIRNR009407};
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000256|PIRSR:PIRSR009407-3};
CC Name=Mn(2+); Xref=ChEBI:CHEBI:29035;
CC Evidence={ECO:0000256|PIRSR:PIRSR009407-3};
CC Note=Binds 1 Mg(2+) or Mn(2+) ion per subunit.
CC {ECO:0000256|PIRSR:PIRSR009407-3};
CC -!- SIMILARITY: Belongs to the monomeric-type IDH family.
CC {ECO:0000256|PIRNR:PIRNR009407}.
CC -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC whole genome shotgun (WGS) entry which is preliminary data.
CC {ECO:0000313|EMBL:OYQ65478.1}.
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DR EMBL; NDHW01000082; OYQ65478.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A256BI03; -.
DR OrthoDB; 9807643at2; -.
DR Proteomes; UP000215660; Unassembled WGS sequence.
DR GO; GO:0004450; F:isocitrate dehydrogenase (NADP+) activity; IEA:UniProtKB-EC.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR GO; GO:0006097; P:glyoxylate cycle; IEA:UniProtKB-KW.
DR GO; GO:0006099; P:tricarboxylic acid cycle; IEA:UniProtKB-KW.
DR Gene3D; 3.40.718.10; Isopropylmalate Dehydrogenase; 1.
DR InterPro; IPR004436; Isocitrate_DH_NADP_mono.
DR NCBIfam; TIGR00178; monomer_idh; 1.
DR PANTHER; PTHR36999; ISOCITRATE DEHYDROGENASE [NADP]; 1.
DR PANTHER; PTHR36999:SF1; ISOCITRATE DEHYDROGENASE [NADP]; 1.
DR Pfam; PF03971; IDH; 1.
DR PIRSF; PIRSF009407; IDH_monmr; 1.
DR SUPFAM; SSF53659; Isocitrate/Isopropylmalate dehydrogenase-like; 1.
PE 3: Inferred from homology;
KW Coiled coil {ECO:0000256|SAM:Coils};
KW Glyoxylate bypass {ECO:0000256|PIRNR:PIRNR009407};
KW Magnesium {ECO:0000256|PIRSR:PIRSR009407-3};
KW Metal-binding {ECO:0000256|PIRSR:PIRSR009407-3};
KW NADP {ECO:0000256|PIRNR:PIRNR009407, ECO:0000256|PIRSR:PIRSR009407-4};
KW Oxidoreductase {ECO:0000256|PIRNR:PIRNR009407};
KW Reference proteome {ECO:0000313|Proteomes:UP000215660};
KW Tricarboxylic acid cycle {ECO:0000256|PIRNR:PIRNR009407}.
FT COILED 670..699
FT /evidence="ECO:0000256|SAM:Coils"
FT BINDING 84..89
FT /ligand="NADP(+)"
FT /ligand_id="ChEBI:CHEBI:58349"
FT /evidence="ECO:0000256|PIRSR:PIRSR009407-4"
FT BINDING 134..141
FT /ligand="substrate"
FT /evidence="ECO:0000256|PIRSR:PIRSR009407-2"
FT BINDING 137
FT /ligand="NADP(+)"
FT /ligand_id="ChEBI:CHEBI:58349"
FT /evidence="ECO:0000256|PIRSR:PIRSR009407-4"
FT BINDING 147
FT /ligand="substrate"
FT /evidence="ECO:0000256|PIRSR:PIRSR009407-2"
FT BINDING 352
FT /ligand="Mn(2+)"
FT /ligand_id="ChEBI:CHEBI:29035"
FT /evidence="ECO:0000256|PIRSR:PIRSR009407-3"
FT BINDING 549
FT /ligand="substrate"
FT /evidence="ECO:0000256|PIRSR:PIRSR009407-2"
FT BINDING 550
FT /ligand="Mn(2+)"
FT /ligand_id="ChEBI:CHEBI:29035"
FT /evidence="ECO:0000256|PIRSR:PIRSR009407-3"
FT BINDING 554
FT /ligand="Mn(2+)"
FT /ligand_id="ChEBI:CHEBI:29035"
FT /evidence="ECO:0000256|PIRSR:PIRSR009407-3"
FT BINDING 586..587
FT /ligand="NADP(+)"
FT /ligand_id="ChEBI:CHEBI:58349"
FT /evidence="ECO:0000256|PIRSR:PIRSR009407-4"
FT BINDING 591
FT /ligand="NADP(+)"
FT /ligand_id="ChEBI:CHEBI:58349"
FT /evidence="ECO:0000256|PIRSR:PIRSR009407-4"
FT BINDING 602..604
FT /ligand="NADP(+)"
FT /ligand_id="ChEBI:CHEBI:58349"
FT /evidence="ECO:0000256|PIRSR:PIRSR009407-4"
FT BINDING 651
FT /ligand="NADP(+)"
FT /ligand_id="ChEBI:CHEBI:58349"
FT /evidence="ECO:0000256|PIRSR:PIRSR009407-4"
FT SITE 257
FT /note="Critical for catalysis"
FT /evidence="ECO:0000256|PIRSR:PIRSR009407-1"
FT SITE 422
FT /note="Critical for catalysis"
FT /evidence="ECO:0000256|PIRSR:PIRSR009407-1"
SQ SEQUENCE 743 AA; 81363 MW; A374A47D4A37DC18 CRC64;
MSNQTSKITY TFTDEAPALA TYSLLPIVQA FTKAADIEVE LKDISLAGRI IANFPEYLTE
SQRQPDALDE LGSLAKTPDA YIIKLPNISA SLPQLMAAIA ELQAKGYNIP NYPADPQTEE
EKAIKAKYSK VLGSAVNPVL REGNSDRRVA LAVKEFAQKH PHSVGAWSKD SKSHVAHMTE
GDFYGSEKSV VIPNAGVVKI ELTTADGSTQ VLKQKTTVLE GEVIDASVMS VKALREFYAQ
EIAKAKEEDI LLSLHVKATM MKISDPILFG HAVTVYYQVV FKKYADTFKQ LGINPNNGLG
DVYAKIQYLP AEQKEAIASD LQAVYEKQPR LAMVNSDKGI TNLHVPSDVI IDASMAATIR
TSGKMWGADG KAYDTKAMIP DRCYATIYQA CIEFCQENGA FDVTTMGNVA NVGLMAQKAE
EYGSHDKTFE IPADGVVRVS DESGTVLIEH SVAKGDIWRM CQTKDLPIQD WVKLAVNRAR
ATGNPTIFWL DEHRAHDANL ITKVKTYLQD HDTTGLDIQI MSPVAAMKFT CEQIKVGKNV
ISVTGNVLRD YLTDLFPILE LGTSAKMLSI VPLLAGGGLF ETGAGGSAPK HVQQFLEEGH
LRWDSLGEFL AIAVTLEDLG HKTNNENAMI LAKALDQANS LYLNNDKSPS RKIGGIDNRG
SHFYIALYWA QALAEQNQNL ELKSKFAELT QILAEKESQI IQELSAAQGK SVDIGGYYFA
DCDKASQAMR PSQTLNEVIN SLH
//
