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2H44

Crystal structure of PDE5A1 in complex with icarisid II

Functional Information from GO Data
ChainGOidnamespacecontents
A0004114molecular_function3',5'-cyclic-nucleotide phosphodiesterase activity
A0007165biological_processsignal transduction
A0008081molecular_functionphosphoric diester hydrolase activity
Functional Information from PDB Data
site_idAC1
Number of Residues6
DetailsBINDING SITE FOR RESIDUE ZN A 501
ChainResidue
AHOH1
AHOH2
AHIS617
AHIS653
AASP654
AASP764

site_idAC2
Number of Residues6
DetailsBINDING SITE FOR RESIDUE MG A 502
ChainResidue
AHOH4
AHIS613
AASP654
AHOH1
AHOH2
AHOH3

site_idAC3
Number of Residues24
DetailsBINDING SITE FOR RESIDUE 7CA A 301
ChainResidue
AHOH2
AHOH3
AHOH5
AHOH26
AHOH127
ATYR612
AHIS613
AASN661
ASER663
ATYR664
AILE665
ASER668
ALEU725
AASP764
ALEU765
AALA767
AILE768
AGLN775
AALA779
AVAL782
ALEU804
AMET816
AGLN817
APHE820

Functional Information from PROSITE/UniProt
site_idPS00126
Number of Residues12
DetailsPDEASE_I_1 3'5'-cyclic nucleotide phosphodiesterase domain signature. HDLdHrGvnNsY
ChainResidueDetails
AHIS653-TYR664

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues324
DetailsDomain: {"description":"PDEase","evidences":[{"source":"PROSITE-ProRule","id":"PRU01192","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues1
DetailsActive site: {"description":"Proton donor","evidences":[{"source":"UniProtKB","id":"O76083","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues4
DetailsBinding site: {"evidences":[{"source":"PubMed","id":"12955149","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"15260978","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"1T9R","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"1T9S","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"1TBF","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues1
DetailsBinding site: {"evidences":[{"source":"PubMed","id":"12955149","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

246333

PDB entries from 2025-12-17

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