Function and Biology

CRYSTAL STRUCTURES OF THE CATALYTIC DOMAIN OF PHOSPHODIESTERASE 4B2B COMPLEXED WITH 8-Br-AMP

Source organism: Homo sapiens
Biochemical function: phosphoric diester hydrolase activity
Biological process: signal transduction
Cellular component: not assigned

EC 3.1.4.53: 3',5'-cyclic-AMP phosphodiesterase

Reaction catalysed:
Adenosine 3',5'-cyclic phosphate + H(2)O = adenosine 5'-phosphate
Systematic name:
3',5'-cyclic-AMP 5'-nucleotidohydrolase
Alternative Name(s):
  • PDE1
  • PDE2A
  • PDE2B
  • PDE4
  • PDE7
  • PDE8
  • PDEB1
  • PDEB2
  • cAMP-specific PDE
  • cAMP-specific phosphodiesterase

GO terms

Biochemical function:
Biological process:
Cellular component:
  • not assigned

Sequence family

Pfam Protein family (Pfam)
PF00233
Domain description: 3'5'-cyclic nucleotide phosphodiesterase
Occurring in:
  1. 3',5'-cyclic-AMP phosphodiesterase 4B
The deposited structure of PDB entry 1ro9 contains 2 copies of Pfam domain PF00233 (3'5'-cyclic nucleotide phosphodiesterase) in 3',5'-cyclic-AMP phosphodiesterase 4B. Showing 1 copy in chain A.

InterPro InterPro annotations
IPR023088
Domain description: 3'5'-cyclic nucleotide phosphodiesterase
Occurring in:
  1. 3',5'-cyclic-AMP phosphodiesterase 4B
IPR003607
Domain description: HD/PDEase domain
Occurring in:
  1. 3',5'-cyclic-AMP phosphodiesterase 4B
IPR002073
Domain description: 3'5'-cyclic nucleotide phosphodiesterase, catalytic domain
Occurring in:
  1. 3',5'-cyclic-AMP phosphodiesterase 4B
IPR023174
Domain description: 3'5'-cyclic nucleotide phosphodiesterase, conserved site
Occurring in:
  1. 3',5'-cyclic-AMP phosphodiesterase 4B
IPR036971
Domain description: 3'5'-cyclic nucleotide phosphodiesterase, catalytic domain superfamily
Occurring in:
  1. 3',5'-cyclic-AMP phosphodiesterase 4B

Structure domain

CATH CATH domain
1.10.1300.10
Class: Mainly Alpha
Architecture: Orthogonal Bundle
Topology: Catalytic domain of cyclic nucleotide phosphodiesterase 4b2b
Homology: 3'5'-cyclic nucleotide phosphodiesterase, catalytic domain
Occurring in:
  1. 3',5'-cyclic-AMP phosphodiesterase 4B
The deposited structure of PDB entry 1ro9 contains 2 copies of CATH domain 1.10.1300.10 (Catalytic domain of cyclic nucleotide phosphodiesterase 4b2b) in 3',5'-cyclic-AMP phosphodiesterase 4B. Showing 1 copy in chain A.
SCOP SCOP annotation
48548
Class: All alpha proteins
Fold: HD-domain/PDEase-like
Superfamily: HD-domain/PDEase-like
Occurring in:
  1. 3',5'-cyclic-AMP phosphodiesterase 4B
The deposited structure of PDB entry 1ro9 contains 2 copies of SCOP domain 48548 (PDEase) in 3',5'-cyclic-AMP phosphodiesterase 4B. Showing 1 copy in chain A.