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6UA5

Human IMPDH2 treated with ATP, IMP, NAD+, and 2 mM GTP. Free interfacial octamer reconstruction.

Functional Information from GO Data
ChainGOidnamespacecontents
A0000166molecular_functionnucleotide binding
A0003677molecular_functionDNA binding
A0003723molecular_functionRNA binding
A0003824molecular_functioncatalytic activity
A0003938molecular_functionIMP dehydrogenase activity
A0005515molecular_functionprotein binding
A0005576cellular_componentextracellular region
A0005634cellular_componentnucleus
A0005737cellular_componentcytoplasm
A0005778cellular_componentperoxisomal membrane
A0005829cellular_componentcytosol
A0006164biological_processpurine nucleotide biosynthetic process
A0006177biological_processGMP biosynthetic process
A0006183biological_processGTP biosynthetic process
A0007623biological_processcircadian rhythm
A0016020cellular_componentmembrane
A0016491molecular_functionoxidoreductase activity
A0034774cellular_componentsecretory granule lumen
A0046872molecular_functionmetal ion binding
A0070062cellular_componentextracellular exosome
A0097294biological_process'de novo' XMP biosynthetic process
A1904813cellular_componentficolin-1-rich granule lumen
B0000166molecular_functionnucleotide binding
B0003677molecular_functionDNA binding
B0003723molecular_functionRNA binding
B0003824molecular_functioncatalytic activity
B0003938molecular_functionIMP dehydrogenase activity
B0005515molecular_functionprotein binding
B0005576cellular_componentextracellular region
B0005634cellular_componentnucleus
B0005737cellular_componentcytoplasm
B0005778cellular_componentperoxisomal membrane
B0005829cellular_componentcytosol
B0006164biological_processpurine nucleotide biosynthetic process
B0006177biological_processGMP biosynthetic process
B0006183biological_processGTP biosynthetic process
B0007623biological_processcircadian rhythm
B0016020cellular_componentmembrane
B0016491molecular_functionoxidoreductase activity
B0034774cellular_componentsecretory granule lumen
B0046872molecular_functionmetal ion binding
B0070062cellular_componentextracellular exosome
B0097294biological_process'de novo' XMP biosynthetic process
B1904813cellular_componentficolin-1-rich granule lumen
C0000166molecular_functionnucleotide binding
C0003677molecular_functionDNA binding
C0003723molecular_functionRNA binding
C0003824molecular_functioncatalytic activity
C0003938molecular_functionIMP dehydrogenase activity
C0005515molecular_functionprotein binding
C0005576cellular_componentextracellular region
C0005634cellular_componentnucleus
C0005737cellular_componentcytoplasm
C0005778cellular_componentperoxisomal membrane
C0005829cellular_componentcytosol
C0006164biological_processpurine nucleotide biosynthetic process
C0006177biological_processGMP biosynthetic process
C0006183biological_processGTP biosynthetic process
C0007623biological_processcircadian rhythm
C0016020cellular_componentmembrane
C0016491molecular_functionoxidoreductase activity
C0034774cellular_componentsecretory granule lumen
C0046872molecular_functionmetal ion binding
C0070062cellular_componentextracellular exosome
C0097294biological_process'de novo' XMP biosynthetic process
C1904813cellular_componentficolin-1-rich granule lumen
D0000166molecular_functionnucleotide binding
D0003677molecular_functionDNA binding
D0003723molecular_functionRNA binding
D0003824molecular_functioncatalytic activity
D0003938molecular_functionIMP dehydrogenase activity
D0005515molecular_functionprotein binding
D0005576cellular_componentextracellular region
D0005634cellular_componentnucleus
D0005737cellular_componentcytoplasm
D0005778cellular_componentperoxisomal membrane
D0005829cellular_componentcytosol
D0006164biological_processpurine nucleotide biosynthetic process
D0006177biological_processGMP biosynthetic process
D0006183biological_processGTP biosynthetic process
D0007623biological_processcircadian rhythm
D0016020cellular_componentmembrane
D0016491molecular_functionoxidoreductase activity
D0034774cellular_componentsecretory granule lumen
D0046872molecular_functionmetal ion binding
D0070062cellular_componentextracellular exosome
D0097294biological_process'de novo' XMP biosynthetic process
D1904813cellular_componentficolin-1-rich granule lumen
E0000166molecular_functionnucleotide binding
E0003677molecular_functionDNA binding
E0003723molecular_functionRNA binding
E0003824molecular_functioncatalytic activity
E0003938molecular_functionIMP dehydrogenase activity
E0005515molecular_functionprotein binding
E0005576cellular_componentextracellular region
E0005634cellular_componentnucleus
E0005737cellular_componentcytoplasm
E0005778cellular_componentperoxisomal membrane
E0005829cellular_componentcytosol
E0006164biological_processpurine nucleotide biosynthetic process
E0006177biological_processGMP biosynthetic process
E0006183biological_processGTP biosynthetic process
E0007623biological_processcircadian rhythm
E0016020cellular_componentmembrane
E0016491molecular_functionoxidoreductase activity
E0034774cellular_componentsecretory granule lumen
E0046872molecular_functionmetal ion binding
E0070062cellular_componentextracellular exosome
E0097294biological_process'de novo' XMP biosynthetic process
E1904813cellular_componentficolin-1-rich granule lumen
F0000166molecular_functionnucleotide binding
F0003677molecular_functionDNA binding
F0003723molecular_functionRNA binding
F0003824molecular_functioncatalytic activity
F0003938molecular_functionIMP dehydrogenase activity
F0005515molecular_functionprotein binding
F0005576cellular_componentextracellular region
F0005634cellular_componentnucleus
F0005737cellular_componentcytoplasm
F0005778cellular_componentperoxisomal membrane
F0005829cellular_componentcytosol
F0006164biological_processpurine nucleotide biosynthetic process
F0006177biological_processGMP biosynthetic process
F0006183biological_processGTP biosynthetic process
F0007623biological_processcircadian rhythm
F0016020cellular_componentmembrane
F0016491molecular_functionoxidoreductase activity
F0034774cellular_componentsecretory granule lumen
F0046872molecular_functionmetal ion binding
F0070062cellular_componentextracellular exosome
F0097294biological_process'de novo' XMP biosynthetic process
F1904813cellular_componentficolin-1-rich granule lumen
G0000166molecular_functionnucleotide binding
G0003677molecular_functionDNA binding
G0003723molecular_functionRNA binding
G0003824molecular_functioncatalytic activity
G0003938molecular_functionIMP dehydrogenase activity
G0005515molecular_functionprotein binding
G0005576cellular_componentextracellular region
G0005634cellular_componentnucleus
G0005737cellular_componentcytoplasm
G0005778cellular_componentperoxisomal membrane
G0005829cellular_componentcytosol
G0006164biological_processpurine nucleotide biosynthetic process
G0006177biological_processGMP biosynthetic process
G0006183biological_processGTP biosynthetic process
G0007623biological_processcircadian rhythm
G0016020cellular_componentmembrane
G0016491molecular_functionoxidoreductase activity
G0034774cellular_componentsecretory granule lumen
G0046872molecular_functionmetal ion binding
G0070062cellular_componentextracellular exosome
G0097294biological_process'de novo' XMP biosynthetic process
G1904813cellular_componentficolin-1-rich granule lumen
H0000166molecular_functionnucleotide binding
H0003677molecular_functionDNA binding
H0003723molecular_functionRNA binding
H0003824molecular_functioncatalytic activity
H0003938molecular_functionIMP dehydrogenase activity
H0005515molecular_functionprotein binding
H0005576cellular_componentextracellular region
H0005634cellular_componentnucleus
H0005737cellular_componentcytoplasm
H0005778cellular_componentperoxisomal membrane
H0005829cellular_componentcytosol
H0006164biological_processpurine nucleotide biosynthetic process
H0006177biological_processGMP biosynthetic process
H0006183biological_processGTP biosynthetic process
H0007623biological_processcircadian rhythm
H0016020cellular_componentmembrane
H0016491molecular_functionoxidoreductase activity
H0034774cellular_componentsecretory granule lumen
H0046872molecular_functionmetal ion binding
H0070062cellular_componentextracellular exosome
H0097294biological_process'de novo' XMP biosynthetic process
H1904813cellular_componentficolin-1-rich granule lumen
Functional Information from PDB Data
site_idAC1
Number of Residues16
Detailsbinding site for residue IMP A 601
ChainResidue
ASER68
ASER388
ATYR411
AGLY413
AMET414
AGLY415
AGLN441
ANAD602
AMET70
AARG322
AGLY328
ASER329
ACYS331
AASP364
AGLY365
AGLY387

site_idAC2
Number of Residues15
Detailsbinding site for residue NAD A 602
ChainResidue
AHIS93
ATHR252
AHIS253
AASP274
ASER276
APHE282
AASN303
AARG322
AGLY324
AMET325
AMET414
AGLN441
AIMP601
DTHR45
DGLN469

site_idAC3
Number of Residues15
Detailsbinding site for residue NAD B 602
ChainResidue
ATHR45
AGLN469
BHIS93
BTHR252
BHIS253
BASP274
BSER276
BPHE282
BASN303
BARG322
BGLY324
BMET325
BMET414
BGLN441
BIMP601

site_idAC4
Number of Residues15
Detailsbinding site for residue NAD C 602
ChainResidue
BTHR45
BGLN469
CHIS93
CTHR252
CHIS253
CASP274
CSER276
CPHE282
CASN303
CARG322
CGLY324
CMET325
CMET414
CGLN441
CIMP601

site_idAC5
Number of Residues15
Detailsbinding site for residue NAD D 602
ChainResidue
CTHR45
CGLN469
DHIS93
DTHR252
DHIS253
DASP274
DSER276
DPHE282
DASN303
DARG322
DGLY324
DMET325
DMET414
DGLN441
DIMP601

site_idAC6
Number of Residues15
Detailsbinding site for residue NAD E 602
ChainResidue
EHIS93
ETHR252
EHIS253
EASP274
ESER276
EPHE282
EASN303
EARG322
EGLY324
EMET325
EMET414
EGLN441
EIMP601
HTHR45
HGLN469

site_idAC7
Number of Residues15
Detailsbinding site for residue NAD F 602
ChainResidue
FASN303
FARG322
FGLY324
FMET325
FMET414
FGLN441
FIMP601
ETHR45
EGLN469
FHIS93
FTHR252
FHIS253
FASP274
FSER276
FPHE282

site_idAC8
Number of Residues15
Detailsbinding site for residue NAD G 602
ChainResidue
FTHR45
FGLN469
GHIS93
GTHR252
GHIS253
GASP274
GSER276
GPHE282
GASN303
GARG322
GGLY324
GMET325
GMET414
GGLN441
GIMP601

site_idAC9
Number of Residues15
Detailsbinding site for residue NAD H 602
ChainResidue
GTHR45
GGLN469
HHIS93
HTHR252
HHIS253
HASP274
HSER276
HPHE282
HASN303
HARG322
HGLY324
HMET325
HMET414
HGLN441
HIMP601

site_idAD1
Number of Residues20
Detailsbinding site for Di-peptide IMP B 601 and CYS B 331
ChainResidue
AGLY501
AGLY502
BSER68
BMET70
BARG322
BGLY328
BSER329
BILE330
BILE332
BTHR333
BASP364
BGLY365
BGLY387
BSER388
BTYR411
BGLY413
BMET414
BGLY415
BGLN441
BNAD602

site_idAD2
Number of Residues20
Detailsbinding site for Di-peptide IMP B 601 and CYS B 331
ChainResidue
AGLY501
AGLY502
BSER68
BMET70
BARG322
BGLY328
BSER329
BILE330
BILE332
BTHR333
BASP364
BGLY365
BGLY387
BSER388
BTYR411
BGLY413
BMET414
BGLY415
BGLN441
BNAD602

site_idAD3
Number of Residues20
Detailsbinding site for Di-peptide IMP C 601 and CYS C 331
ChainResidue
BGLY501
BGLY502
CSER68
CMET70
CARG322
CGLY328
CSER329
CILE330
CILE332
CTHR333
CASP364
CGLY365
CGLY387
CSER388
CTYR411
CGLY413
CMET414
CGLY415
CGLN441
CNAD602

site_idAD4
Number of Residues20
Detailsbinding site for Di-peptide IMP C 601 and CYS C 331
ChainResidue
BGLY501
BGLY502
CSER68
CMET70
CARG322
CGLY328
CSER329
CILE330
CILE332
CTHR333
CASP364
CGLY365
CGLY387
CSER388
CTYR411
CGLY413
CMET414
CGLY415
CGLN441
CNAD602

site_idAD5
Number of Residues20
Detailsbinding site for Di-peptide IMP D 601 and CYS D 331
ChainResidue
CGLY501
CGLY502
DSER68
DMET70
DARG322
DGLY328
DSER329
DILE330
DILE332
DTHR333
DASP364
DGLY365
DGLY387
DSER388
DTYR411
DGLY413
DMET414
DGLY415
DGLN441
DNAD602

site_idAD6
Number of Residues20
Detailsbinding site for Di-peptide IMP D 601 and CYS D 331
ChainResidue
CGLY501
CGLY502
DSER68
DMET70
DARG322
DGLY328
DSER329
DILE330
DILE332
DTHR333
DASP364
DGLY365
DGLY387
DSER388
DTYR411
DGLY413
DMET414
DGLY415
DGLN441
DNAD602

site_idAD7
Number of Residues20
Detailsbinding site for Di-peptide IMP E 601 and CYS E 331
ChainResidue
ESER68
EMET70
EARG322
EGLY328
ESER329
EILE330
EILE332
ETHR333
EASP364
EGLY365
EGLY387
ESER388
ETYR411
EGLY413
EMET414
EGLY415
EGLN441
ENAD602
HGLY501
HGLY502

site_idAD8
Number of Residues20
Detailsbinding site for Di-peptide IMP E 601 and CYS E 331
ChainResidue
ESER68
EMET70
EARG322
EGLY328
ESER329
EILE330
EILE332
ETHR333
EASP364
EGLY365
EGLY387
ESER388
ETYR411
EGLY413
EMET414
EGLY415
EGLN441
ENAD602
HGLY501
HGLY502

site_idAD9
Number of Residues20
Detailsbinding site for Di-peptide IMP F 601 and CYS F 331
ChainResidue
EGLY501
EGLY502
FSER68
FMET70
FARG322
FGLY328
FSER329
FILE330
FILE332
FTHR333
FASP364
FGLY365
FGLY387
FSER388
FTYR411
FGLY413
FMET414
FGLY415
FGLN441
FNAD602

site_idAE1
Number of Residues20
Detailsbinding site for Di-peptide IMP F 601 and CYS F 331
ChainResidue
EGLY501
EGLY502
FSER68
FMET70
FARG322
FGLY328
FSER329
FILE330
FILE332
FTHR333
FASP364
FGLY365
FGLY387
FSER388
FTYR411
FGLY413
FMET414
FGLY415
FGLN441
FNAD602

site_idAE2
Number of Residues20
Detailsbinding site for Di-peptide IMP G 601 and CYS G 331
ChainResidue
FGLY501
FGLY502
GSER68
GMET70
GARG322
GGLY328
GSER329
GILE330
GILE332
GTHR333
GASP364
GGLY365
GGLY387
GSER388
GTYR411
GGLY413
GMET414
GGLY415
GGLN441
GNAD602

site_idAE3
Number of Residues20
Detailsbinding site for Di-peptide IMP G 601 and CYS G 331
ChainResidue
FGLY501
FGLY502
GSER68
GMET70
GARG322
GGLY328
GSER329
GILE330
GILE332
GTHR333
GASP364
GGLY365
GGLY387
GSER388
GTYR411
GGLY413
GMET414
GGLY415
GGLN441
GNAD602

site_idAE4
Number of Residues20
Detailsbinding site for Di-peptide IMP H 601 and CYS H 331
ChainResidue
GGLY501
GGLY502
HSER68
HMET70
HARG322
HGLY328
HSER329
HILE330
HILE332
HTHR333
HASP364
HGLY365
HGLY387
HSER388
HTYR411
HGLY413
HMET414
HGLY415
HGLN441
HNAD602

site_idAE5
Number of Residues20
Detailsbinding site for Di-peptide IMP H 601 and CYS H 331
ChainResidue
GGLY501
GGLY502
HSER68
HMET70
HARG322
HGLY328
HSER329
HILE330
HILE332
HTHR333
HASP364
HGLY365
HGLY387
HSER388
HTYR411
HGLY413
HMET414
HGLY415
HGLN441
HNAD602

Functional Information from PROSITE/UniProt
site_idPS00487
Number of Residues13
DetailsIMP_DH_GMP_RED IMP dehydrogenase / GMP reductase signature. LRVGMGsGSICiT
ChainResidueDetails
ALEU321-THR333

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues8
DetailsActive site: {"description":"Thioimidate intermediate","evidences":[{"source":"HAMAP-Rule","id":"MF_03156","evidenceCode":"ECO:0000255"},{"source":"PubMed","id":"10097070","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues40
DetailsBinding site: {}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues88
DetailsBinding site: {"evidences":[{"source":"HAMAP-Rule","id":"MF_03156","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues24
DetailsBinding site: {"description":"in other chain","evidences":[{"source":"HAMAP-Rule","id":"MF_03156","evidenceCode":"ECO:0000255"},{"source":"Reference","evidenceCode":"ECO:0000269","citation":{"citationType":"submission","publicationDate":"DEC-2002","submissionDatabase":"PDB data bank","title":"Crystal structure of human inosine monophosphate dehydrogenase type II complexed with the MPA/NAD analog C2-MAD.","authors":["Risal D.","Strickler M.D.","Goldstein B.M."]}}]}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues8
DetailsModified residue: {"description":"Phosphotyrosine","evidences":[{"source":"PubMed","id":"15592455","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI6
Number of Residues8
DetailsModified residue: {"description":"Phosphoserine","evidences":[{"source":"PubMed","id":"20068231","evidenceCode":"ECO:0007744"},{"source":"PubMed","id":"23186163","evidenceCode":"ECO:0007744"},{"source":"PubMed","id":"24275569","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI7
Number of Residues8
DetailsModified residue: {"description":"N6-acetyllysine","evidences":[{"source":"PubMed","id":"19608861","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI8
Number of Residues16
DetailsCross-link: {"description":"Glycyl lysine isopeptide (Lys-Gly) (interchain with G-Cter in SUMO2)","evidences":[{"source":"PubMed","id":"28112733","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

247536

PDB entries from 2026-01-14

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