PDE4B

From Wikipedia, the free encyclopedia
Phosphodiesterase 4B, cAMP-specific

PDB rendering based on 1f0j.
Available structures
PDB Ortholog search: PDBe, RCSB
Identifiers
SymbolsPDE4B; DPDE4; PDE4B5; PDEIVB
External IDsOMIM: 600127 MGI: 99557 HomoloGene: 1953 ChEMBL: 275 GeneCards: PDE4B Gene
EC number3.1.4.17
RNA expression pattern
More reference expression data
Orthologs
SpeciesHumanMouse
Entrez514218578
EnsemblENSG00000184588ENSMUSG00000028525
UniProtQ07343B1AWC8
RefSeq (mRNA)NM_001037339NM_001177980
RefSeq (protein)NP_001032416NP_001171451
Location (UCSC)Chr 1:
66.26 – 66.84 Mb
Chr 4:
102.09 – 102.61 Mb
PubMed search

cAMP-specific 3',5'-cyclic phosphodiesterase 4B is an enzyme that in humans is encoded by the PDE4B gene.[1]

This gene is a member of the type IV, cyclic AMP (cAMP)-specific, cyclic nucleotide phosphodiesterase (PDE) family. Cyclic nucleotides are important second messengers that regulate and mediate a number of cellular responses to extracellular signals, such as hormones, light, and neurotransmitters. The cyclic nucleotide phosphodiesterases (PDEs) regulate the cellular concentrations of cyclic nucleotides and thereby play a role in signal transduction. This gene encodes a protein that specifically hydrolyzes cAMP. Alternate transcriptional splice variants, encoding different isoforms, have been characterized.[1]

Clinical relevance

Altered activity of this protein has been associated with schizophrenia and bipolar affective disorder.[1] PDE4B is believed to be the PDE4 subtype involved in the antipsychotic effects of PDE4 inhibitors such as rolipram.[2] PDE4B is involved in dopamine-associated and stress-related behaviours.[3]

References

  1. 1.0 1.1 1.2 "Entrez Gene: PDE4B phosphodiesterase 4B, cAMP-specific (phosphodiesterase E4 dunce homolog, Drosophila)". 
  2. Siuciak, JA; Chapin, DS; McCarthy, SA; Martin, AN (June 2007). "Antipsychotic profile of rolipram: efficacy in rats and reduced sensitivity in mice deficient in the phosphodiesterase-4B (PDE4B) enzyme". Psychopharmacology 192 (3): 415–424. doi:10.1007/s00213-007-0727-x. PMID 17333137. 
  3. Francis, SH; Conti, M; Houslay, MD, ed. (2011). Phosphodiesterases as Drug Targets (PDF). Handbook of Experimental Pharmacology 204. Springer Berlin Heidelberg. doi:10.1007/978-3-642-17969-3. ISBN 978-3-642-17968-6. 

Further reading

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