Reviewed,
UniProtKB/Swiss-Prot O95263 (PDE8B_HUMAN)
Last modified
November 3, 2009.
Version 93.
History...
Clusters with 100%,
90%,
50% identity |
Documents (4) |
Third-party data |
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Names and origin
| Protein names | Recommended name: High affinity cAMP-specific and IBMX-insensitive 3',5'-cyclic phosphodiesterase 8B Short name=HsPDE8B EC=3.1.4.17 | ||
| Gene names |
| ||
| Organism | Homo sapiens (Human) [Complete proteome] | ||
| Taxonomic identifier | 9606 [NCBI] | ||
| Taxonomic lineage | Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Primates › Haplorrhini › Catarrhini › Hominidae › Homo |
Protein attributes
| Sequence length | 885 AA. |
| Sequence status | Complete. |
| Sequence processing | The displayed sequence is not processed. |
| Protein existence | Evidence at protein level. |
General annotation (Comments)
| Function | Plays a role in signal transduction by regulating the intracellular concentration of cyclic nucleotides. This phosphodiesterase has high affinity for cAMP and may be involved in specific signaling in the thyroid gland. |
| Catalytic activity | Adenosine 3',5'-cyclic phosphate + H2O = adenosine 5'-phosphate. Ref.2 |
| Cofactor | Divalent cations. |
| Enzyme regulation | Inhibited by dipyridimole. Insensitive to selective PDE inhibitors including rolipram and milrinone as well as to the non-selective inhibitor, IBMX. Unaffected by cGMP. Ref.2 |
| Pathway | Purine metabolism; 3',5'-cyclic AMP degradation; AMP from 3',5'-cyclic AMP: step 1/1. |
| Tissue specificity | Abundantly expressed in the thyroid. Also very weakly expressed in brain, spinal cord and placenta. In the thyroid isoform 1 predominates, and isoforms 2 and 6 are also highly expressed. In the placenta isoforms 1 and 2 are expressed equally. In the brain isoform 2 predominates. Ref.2 Ref.1 |
| Domain | Composed of a C-terminal catalytic domain containing two putative divalent metal sites and an N-terminal regulatory domain. |
| Sequence similarities | Belongs to the cyclic nucleotide phosphodiesterase family. Contains 1 PAS (PER-ARNT-SIM) domain. |
Ontologies
| Keywords | |
|---|---|
| Coding sequence diversity | Alternative splicing |
| Ligand | Magnesium Manganese Metal-binding cAMP |
| Molecular function | Hydrolase |
| PTM | Phosphoprotein |
| Technical term | Complete proteome |
| Gene Ontology (GO) | |
| Biological process | cAMP catabolic process Inferred from electronic annotation. Source: InterPro regulation of transcription, DNA-dependentInferred from electronic annotation. Source: InterPro two-component signal transduction system (phosphorelay)Inferred from electronic annotation. Source: InterPro |
| Molecular function | 3',5'-cyclic-nucleotide phosphodiesterase activity Ref.4 Non-traceable author statement. Source: UniProtKB magnesium ion bindingInferred from electronic annotation. Source: UniProtKB-KW manganese ion bindingInferred from electronic annotation. Source: UniProtKB-KW two-component response regulator activityInferred from electronic annotation. Source: InterPro |
| Complete GO annotation... | |
Alternative products
| This entry describes 6 isoforms produced by alternative splicing. [Align] [Select] | ||||||
| Isoform 1 (identifier: O95263-1) Also known as: PDE8B1; This isoform has been chosen as the 'canonical' sequence. All positional information in this entry refers to it. This is also the sequence that appears in the downloadable versions of the entry. | ||||||
| Note: Major isoform. | ||||||
| Isoform 2 (identifier: O95263-2) Also known as: PDE8B2; PDE8B3; The sequence of this isoform differs from the canonical sequence as follows: 293-389: Missing. | ||||||
| Isoform 3 (identifier: O95263-3) Also known as: PDE8B3; The sequence of this isoform differs from the canonical sequence as follows: 456-510: Missing. | ||||||
| Isoform 4 (identifier: O95263-4) Also known as: PDE8B4; The sequence of this isoform differs from the canonical sequence as follows: 114-133: Missing. | ||||||
| Isoform 5 (identifier: O95263-5) The sequence of this isoform differs from the canonical sequence as follows: 1-535: Missing. | ||||||
| Note: No experimental confirmation available. | ||||||
| Isoform 6 (identifier: O95263-6) Also known as: PDE8B2; The sequence of this isoform differs from the canonical sequence as follows: 293-339: Missing. |
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | ||||
Molecule processing | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Chain | 1 – 885 | 885 | High affinity cAMP-specific and IBMX-insensitive 3',5'-cyclic phosphodiesterase 8B | PRO_0000198840 | |||||
Regions | |||||||||
| Domain | 267 – 338 | 72 | PAS | ||||||
| Region | 590 – 868 | 279 | Catalytic By similarity | ||||||
Sites | |||||||||
| Metal binding | 615 | 1 | Magnesium or manganese 1 Potential | ||||||
| Metal binding | 619 | 1 | Magnesium or manganese 1 Potential | ||||||
| Metal binding | 644 | 1 | Magnesium or manganese 1 Potential | ||||||
| Metal binding | 655 | 1 | Magnesium or manganese 2 Potential | ||||||
| Metal binding | 659 | 1 | Magnesium or manganese 2 Potential | ||||||
| Metal binding | 685 | 1 | Magnesium or manganese 2 Potential | ||||||
Amino acid modifications | |||||||||
| Modified residue | 517 | 1 | Phosphoserine Ref.6 Ref.7 | ||||||
Natural variations | |||||||||
| Alternative sequence | 1 – 535 | 535 | Missing in isoform 5. | VSP_008081 | |||||
| Alternative sequence | 114 – 133 | 20 | Missing in isoform 4. | VSP_008082 | |||||
| Alternative sequence | 293 – 389 | 97 | Missing in isoform 2. | VSP_008084 | |||||
| Alternative sequence | 293 – 339 | 47 | Missing in isoform 6. | VSP_008083 | |||||
| Alternative sequence | 456 – 510 | 55 | Missing in isoform 3. | VSP_008085 | |||||
Experimental info | |||||||||
| Sequence conflict | 147 | 1 | G → R in CAD38584. Ref.5 | ||||||
Sequences
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References
| « Hide 'large scale' references | |
| [1] | "Genomic organization, chromosomal localization, and alternative splicing of the human phosphodiesterase 8B gene." Hayashi M., Shimada Y., Nishimura Y., Hama T., Tanaka T. Biochem. Biophys. Res. Commun. 297:1253-1258(2002) [PubMed: 12372422] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA / MRNA] (ISOFORMS 1; 2 AND 6), TISSUE SPECIFICITY. |
| [2] | "Comparison of enzymatic characterization and gene organization of cyclic nucleotide phosphodiesterase 8 family in humans." Gamanuma M., Yuasa K., Sasaki T., Sakurai N., Kotera J., Omori K. Cell. Signal. 15:565-574(2003) [PubMed: 12681444] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORMS 1; 2; 3 AND 4), CATALYTIC ACTIVITY, ENZYME REGULATION, TISSUE SPECIFICITY. Tissue: Thyroid. |
| [3] | "The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC)." The MGC Project Team Genome Res. 14:2121-2127(2004) [PubMed: 15489334] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORM 5). Tissue: Testis. |
| [4] | "Molecular cloning and characterization of human PDE8B, a novel thyroid-specific isozyme of 3',5'-cyclic nucleotide phosphodiesterase." Hayashi M., Matsushima K., Ohashi H., Tsunoda H., Murase S., Kawarada Y., Tanaka T. Biochem. Biophys. Res. Commun. 250:751-756(1998) [PubMed: 9784418] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA] OF 227-885 (ISOFORM 1). |
| [5] | "The full-ORF clone resource of the German cDNA consortium." Bechtel S., Rosenfelder H., Duda A., Schmidt C.P., Ernst U., Wellenreuther R., Mehrle A., Schuster C., Bahr A., Bloecker H., Heubner D., Hoerlein A., Michel G., Wedler H., Koehrer K., Ottenwaelder B., Poustka A., Wiemann S., Schupp I. BMC Genomics 8:399-399(2007) [PubMed: 17974005] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] OF 43-885 (ISOFORM 1). Tissue: Amygdala. |
| [6] | "Kinase-selective enrichment enables quantitative phosphoproteomics of the kinome across the cell cycle." Daub H., Olsen J.V., Bairlein M., Gnad F., Oppermann F.S., Korner R., Greff Z., Keri G., Stemmann O., Mann M. Mol. Cell 31:438-448(2008) [PubMed: 18691976] [Abstract] Cited for: PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-517, MASS SPECTROMETRY. |
| [7] | "A quantitative atlas of mitotic phosphorylation." Dephoure N., Zhou C., Villen J., Beausoleil S.A., Bakalarski C.E., Elledge S.J., Gygi S.P. Proc. Natl. Acad. Sci. U.S.A. 105:10762-10767(2008) [PubMed: 18669648] [Abstract] Cited for: PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-517, MASS SPECTROMETRY. |
| + | Additional computationally mapped references. |
Cross-references
Sequence databases | |
|---|---|
| AY129948 mRNA. Translation: AAN71723.1. AY129949 mRNA. Translation: AAN71724.1. AY129950 Genomic DNA. Translation: AAN71725.1. AY129950 Genomic DNA. Translation: AAN71726.1. AY129950 Genomic DNA. Translation: AAN71727.1. AB085824 mRNA. Translation: BAC53762.1. AB085825 mRNA. Translation: BAC53763.1. AB085826 mRNA. Translation: BAC53764.1. AB085827 mRNA. Translation: BAC53765.1. BC043209 mRNA. No translation available. AF079529 mRNA. Translation: AAC69564.2. AL831924 mRNA. Translation: CAD38584.1. | |
| IPI | IPI00216767. IPI00216768. IPI00294049. IPI00337505. IPI00337506. IPI00337507. |
| PIR | JE0293. |
| RefSeq | NP_001025022.1. NP_001025023.1. NP_001025024.1. NP_001025025.1. NP_003710.1. |
| UniGene | Hs.584830 |
3D structure databases | |
| HSSP | HSSP built from PDB template 1F0J based on UniProtKB Q07343. |
| ModBase | Search... |
Protein-protein interaction databases | |
| STRING | O95263. |
PTM databases | |
| PhosphoSite | O95263. |
Proteomic databases | |
| PRIDE | O95263. |
Genome annotation databases | |
| Ensembl | ENST00000264917; ENSP00000264917; ENSG00000113231; Homo sapiens. [Genome view] ENST00000333194; ENSP00000331336; ENSG00000113231; Homo sapiens. [Genome view] ENST00000340978; ENSP00000345446; ENSG00000113231; Homo sapiens. [Genome view] ENST00000342343; ENSP00000345646; ENSG00000113231; Homo sapiens. [Genome view] ENST00000346042; ENSP00000330428; ENSG00000113231; Homo sapiens. [Genome view] |
| GeneID | 8622. |
| KEGG | hsa:8622. |
| UCSC | uc003kfa.1. human. uc003kfb.1. human. uc003kfc.1. human. uc003kfd.1. human. uc003kfe.1. human. |
Organism-specific databases | |
| CTD | 8622. |
| GeneCards | GC05P076542. |
| H-InvDB | HIX0004968. HIX0078031. |
| HGNC | HGNC:8794. PDE8B. |
| MIM | 603390. gene. |
| PharmGKB | PA33142. |
| GenAtlas | Search... |
Phylogenomic databases | |
| HOVERGEN | O95263. |
| OMA | AEIEGSD. |
Enzyme and pathway databases | |
| BRENDA | 3.1.4.17. 247. |
| Reactome | REACT_14797. Signaling by GPCR. |
Gene expression databases | |
| ArrayExpress | O95263. |
| Bgee | O95263. |
| CleanEx | HS_PDE8B. |
| Genevestigator | O95263. |
| GermOnline | ENSG00000113231. Homo sapiens. |
Family and domain databases | |
| InterPro | IPR003607. Met-dep_phosphohydro_HD. IPR000014. PAS. IPR013767. PAS_fold. IPR002073. PDEase. IPR013938. PDEase_PDE8. IPR001789. Sig_transdc_resp-reg_receiver. [Graphical view] |
| Pfam | PF00989. PAS. 1 hit. PF08629. PDE8. 1 hit. PF00233. PDEase_I. 1 hit. PF00072. Response_reg. 1 hit. [Graphical view] |
| PRINTS | PR00387. PDIESTERASE1. |
| SMART | SM00471. HDc. 1 hit. SM00091. PAS. 1 hit. [Graphical view] |
| TIGRFAMs | TIGR00229. sensory_box. 1 hit. |
| PROSITE | PS50112. PAS. 1 hit. PS00126. PDEASE_I. 1 hit. [Graphical view] |
| ProtoNet | Search... |
Other Resources | |
| NextBio | 32309. |
| SOURCE | Search... |
Entry information
| Entry name | PDE8B_HUMAN | ||||||||
| Accession | Primary (citable) accession number: O95263 Secondary accession number(s): Q86XK8 Q8N3T2 | ||||||||
| Entry history |
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| Entry status | Reviewed (UniProtKB/Swiss-Prot) | ||||||||
| Annotation project | HPI (Human Proteome Initiative) | ||||||||
| Disclaimer | Any medical or genetic information present in this entry is provided for research, educational and informational purposes only. It is not in any way intended to be used as a substitute for professional medical advice, diagnosis, treatment or care. | ||||||||
Relevant documents
| Human chromosome 5 Human chromosome 5: entries, gene names and cross-references to MIM |
| MIM cross-references Online Mendelian Inheritance in Man (MIM) cross-references in UniProtKB/Swiss-Prot |
| PATHWAY comments Index of metabolic and biosynthesis pathways |
| SIMILARITY comments Index of protein domains and families |

Clusters with


