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5I96

Crystal Structure of Human Mitochondrial Isocitrate Dehydrogenase (IDH2) R140Q Mutant Homodimer in Complex with AG-221 (Enasidenib) Inhibitor.

Functional Information from GO Data
ChainGOidnamespacecontents
A0000287molecular_functionmagnesium ion binding
A0004450molecular_functionisocitrate dehydrogenase (NADP+) activity
A0005739cellular_componentmitochondrion
A0005759cellular_componentmitochondrial matrix
A0005777cellular_componentperoxisome
A0005829cellular_componentcytosol
A0005975biological_processcarbohydrate metabolic process
A0006097biological_processglyoxylate cycle
A0006099biological_processtricarboxylic acid cycle
A0006102biological_processisocitrate metabolic process
A0006103biological_process2-oxoglutarate metabolic process
A0006739biological_processNADP+ metabolic process
A0006741biological_processNADP+ biosynthetic process
A0016491molecular_functionoxidoreductase activity
A0016616molecular_functionoxidoreductase activity, acting on the CH-OH group of donors, NAD or NADP as acceptor
A0046872molecular_functionmetal ion binding
A0051287molecular_functionNAD binding
A0060253biological_processnegative regulation of glial cell proliferation
A0070062cellular_componentextracellular exosome
A1903976biological_processnegative regulation of glial cell migration
A1904465biological_processnegative regulation of matrix metallopeptidase secretion
B0000287molecular_functionmagnesium ion binding
B0004450molecular_functionisocitrate dehydrogenase (NADP+) activity
B0005739cellular_componentmitochondrion
B0005759cellular_componentmitochondrial matrix
B0005777cellular_componentperoxisome
B0005829cellular_componentcytosol
B0005975biological_processcarbohydrate metabolic process
B0006097biological_processglyoxylate cycle
B0006099biological_processtricarboxylic acid cycle
B0006102biological_processisocitrate metabolic process
B0006103biological_process2-oxoglutarate metabolic process
B0006739biological_processNADP+ metabolic process
B0006741biological_processNADP+ biosynthetic process
B0016491molecular_functionoxidoreductase activity
B0016616molecular_functionoxidoreductase activity, acting on the CH-OH group of donors, NAD or NADP as acceptor
B0046872molecular_functionmetal ion binding
B0051287molecular_functionNAD binding
B0060253biological_processnegative regulation of glial cell proliferation
B0070062cellular_componentextracellular exosome
B1903976biological_processnegative regulation of glial cell migration
B1904465biological_processnegative regulation of matrix metallopeptidase secretion
Functional Information from PDB Data
site_idAC1
Number of Residues7
Detailsbinding site for residue CA A 501
ChainResidue
AASP314
ASER317
AHOH603
AHOH605
AHOH830
AHOH932
BASP291

site_idAC2
Number of Residues8
Detailsbinding site for residue GOL A 502
ChainResidue
AGLU404
AASN444
AHOH612
AHOH644
AHOH785
AHOH814
ALYS280
ALYS282

site_idAC3
Number of Residues10
Detailsbinding site for residue GOL A 503
ChainResidue
AASP271
ALYS272
AHIS273
ATYR274
ALYS275
ATHR276
AHOH786
AHOH867
AHOH912
AHOH1022

site_idAC4
Number of Residues8
Detailsbinding site for residue GOL A 504
ChainResidue
APHE184
AVAL185
AALA186
AASP187
AARG188
AHOH760
BTRP207
BHOH616

site_idAC5
Number of Residues7
Detailsbinding site for residue GOL A 505
ChainResidue
AGLY409
AALA410
AMET411
AASN428
AGLU429
AHIS430
APHE431

site_idAC6
Number of Residues29
Detailsbinding site for residue NDP A 506
ChainResidue
ALYS112
AALA114
ATHR115
ATHR117
AARG122
AASN136
AGLU345
AHIS348
AGLY349
ATHR350
AVAL351
ATHR352
AARG353
AHIS354
AASN367
AHOH678
AHOH704
AHOH717
AHOH725
AHOH726
AHOH762
AHOH780
AHOH796
AHOH800
AHOH805
AHOH813
AHOH909
AHOH921
AHOH1008

site_idAC7
Number of Residues6
Detailsbinding site for residue NA A 507
ChainResidue
AASN136
AGLU343
AGLU345
AHOH665
AHOH719
AHOH1000

site_idAC8
Number of Residues4
Detailsbinding site for residue ACT A 508
ChainResidue
AHIS453
AHIS454
AHOH608
AHOH869

site_idAC9
Number of Residues6
Detailsbinding site for residue CA A 509
ChainResidue
AASP291
BASP314
BASP318
BHOH705
BHOH720
BHOH782

site_idAD1
Number of Residues8
Detailsbinding site for residue GOL B 501
ChainResidue
APHE196
AHOH845
BVAL185
BALA186
BASP187
BARG188
BHOH617
BHOH774

site_idAD2
Number of Residues21
Detailsbinding site for residue 69Q B 502
ChainResidue
AILE319
ALEU320
BLEU160
BTRP164
BILE290
BVAL294
BVAL297
BLEU298
BTYR311
BASP312
BVAL315
BGLN316
BILE319
BLEU320
BHOH643
AILE290
AVAL294
ATYR311
AASP312
AVAL315
AGLN316

site_idAD3
Number of Residues24
Detailsbinding site for residue NDP B 503
ChainResidue
BLYS112
BALA114
BTHR115
BTHR117
BARG122
BASN136
BGLU345
BHIS348
BGLY349
BTHR350
BVAL351
BTHR352
BARG353
BHIS354
BTHR366
BASN367
BACT505
BHOH623
BHOH639
BHOH642
BHOH727
BHOH748
BHOH757
BHOH825

site_idAD4
Number of Residues6
Detailsbinding site for residue NA B 504
ChainResidue
BASN136
BGLU343
BGLU345
BHOH743
BHOH791
BHOH826

site_idAD5
Number of Residues4
Detailsbinding site for residue ACT B 505
ChainResidue
BTHR117
BSER134
BNDP503
BHOH602

Functional Information from PROSITE/UniProt
site_idPS00470
Number of Residues20
DetailsIDH_IMDH Isocitrate and isopropylmalate dehydrogenases signature. NYDGDVqSDilAqgf.GSLGL
ChainResidueDetails
AASN310-LEU329

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues20
DetailsBinding site: {"evidences":[{"source":"UniProtKB","id":"O75874","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues22
DetailsBinding site: {"evidences":[{"source":"UniProtKB","id":"P33198","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues4
DetailsSite: {"description":"Critical for catalysis","evidences":[{"source":"UniProtKB","id":"P33198","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues12
DetailsModified residue: {"description":"N6-acetyllysine","evidences":[{"source":"UniProtKB","id":"P54071","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues12
DetailsModified residue: {"description":"N6-acetyllysine","evidences":[{"source":"PubMed","id":"19608861","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI6
Number of Residues16
DetailsModified residue: {"description":"N6-succinyllysine; alternate","evidences":[{"source":"UniProtKB","id":"P54071","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI7
Number of Residues2
DetailsModified residue: {"description":"N6-acetyllysine","evidences":[{"source":"PubMed","id":"22416140","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

250359

PDB entries from 2026-03-11

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