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1XOZ

Catalytic Domain Of Human Phosphodiesterase 5A In Complex With Tadalafil

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 Residues7
DetailsBINDING SITE FOR RESIDUE ZN A 1
ChainResidue
AMG2
AHIS617
AHIS653
AASP654
AASP764
AHOH1001
AHOH1006

site_idAC2
Number of Residues7
DetailsBINDING SITE FOR RESIDUE MG A 2
ChainResidue
AHOH1001
AHOH1002
AHOH1003
AHOH1004
AHOH1005
AZN1
AASP654

site_idAC3
Number of Residues12
DetailsBINDING SITE FOR RESIDUE CIA A 501
ChainResidue
AILE768
AGLN775
AVAL782
AALA783
APHE786
ALEU804
AILE813
AMET816
AGLN817
APHE820
AHOH1128
AHOH1148

Functional Information from PROSITE/UniProt
site_idPS00126
Number of Residues12
DetailsPDEASE_I_1 3'5'-cyclic nucleotide phosphodiesterase domain signature. HDLdHpGvsNqF
ChainResidueDetails
AHIS653-PHE664

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues1
DetailsActive site: {"description":"Proton donor","evidences":[{"source":"UniProtKB","id":"O76083","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI2
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_FI3
Number of Residues1
DetailsBinding site: {"evidences":[{"source":"PubMed","id":"12955149","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

239492

PDB entries from 2025-07-30

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