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5UP0

Crystal structure of human PDE1B catalytic domain in complex with inhibitor 3 (6-(4-chlorobenzyl)-8,9,10,11-tetrahydrobenzo[4,5]thieno[3,2-e][1,2,4]triazolo[1,5-c]pyrimidin-5(6H)-one)

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 601
ChainResidue
AHIS227
AHIS263
AASP264
AASP370
AHOH703
AHOH775

site_idAC2
Number of Residues6
Detailsbinding site for residue MG A 602
ChainResidue
AHOH732
AHOH745
AHOH783
AASP264
AHOH703
AHOH716

site_idAC3
Number of Residues6
Detailsbinding site for residue 8HP A 603
ChainResidue
AHIS373
ALEU388
AMET389
ALEU409
AGLN421
APHE424

Functional Information from PROSITE/UniProt
site_idPS00126
Number of Residues12
DetailsPDEASE_I_1 3'5'-cyclic nucleotide phosphodiesterase domain signature. HDYeHtGttNsF
ChainResidueDetails
AHIS263-PHE274

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":"15260978","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"1TAZ","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"4NPV","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"4NPW","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

245663

PDB entries from 2025-12-03

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