Guanine deaminase

Mammalian protein found in Homo sapiens
GDA
Available structures
PDBOrtholog search: PDBe RCSB
List of PDB id codes

4AQL, 3E0L, 2UZ9

Identifiers
AliasesGDA, guanine deaminase, CYPIN, GUANASE, NEDASIN, Guanine deaminase, GAH
External IDsOMIM: 139260; MGI: 95678; HomoloGene: 3171; GeneCards: GDA; OMA:GDA - orthologs
Gene location (Human)
Chromosome 9 (human)
Chr.Chromosome 9 (human)[1]
Chromosome 9 (human)
Genomic location for GDA
Genomic location for GDA
Band9q21.13Start72,114,595 bp[1]
End72,257,193 bp[1]
Gene location (Mouse)
Chromosome 19 (mouse)
Chr.Chromosome 19 (mouse)[2]
Chromosome 19 (mouse)
Genomic location for GDA
Genomic location for GDA
Band19 B|19 14.32 cMStart21,368,671 bp[2]
End21,450,809 bp[2]
RNA expression pattern
Bgee
HumanMouse (ortholog)
Top expressed in
  • mucosa of ileum

  • jejunal mucosa

  • pancreatic ductal cell

  • endothelial cell

  • Brodmann area 46

  • Brodmann area 23

  • middle temporal gyrus

  • entorhinal cortex

  • superior frontal gyrus

  • parietal lobe
Top expressed in
  • epithelium of small intestine

  • ventromedial nucleus

  • granulocyte

  • subiculum

  • olfactory tubercle

  • anterior amygdaloid area

  • conjunctival fornix

  • nucleus accumbens

  • piriform cortex

  • lateral septal nucleus
More reference expression data
BioGPS
n/a
Gene ontology
Molecular function
  • hydrolase activity
  • metal ion binding
  • hydrolase activity, acting on carbon-nitrogen (but not peptide) bonds
  • zinc ion binding
  • guanine deaminase activity
  • protein binding
Cellular component
  • cytosol
  • intracellular anatomical structure
Biological process
  • guanine catabolic process
  • purine nucleotide catabolic process
  • nucleobase-containing compound metabolic process
  • nervous system development
  • guanine metabolic process
Sources:Amigo / QuickGO
Orthologs
SpeciesHumanMouse
Entrez

9615

14544

Ensembl

ENSG00000119125

ENSMUSG00000058624

UniProt

Q9Y2T3

Q9R111

RefSeq (mRNA)
NM_001242505
NM_001242506
NM_001242507
NM_004293
NM_001351571

NM_001351572
NM_001351573

NM_010266

RefSeq (protein)
NP_001229434
NP_001229435
NP_001229436
NP_004284
NP_001338500

NP_001338501
NP_001338502

NP_034396

Location (UCSC)Chr 9: 72.11 – 72.26 MbChr 19: 21.37 – 21.45 Mb
PubMed search[3][4]
Wikidata
View/Edit HumanView/Edit Mouse

Guanine deaminase also known as cypin, guanase, guanine aminase, GAH, and guanine aminohydrolase is an aminohydrolase enzyme which converts guanine to xanthine.[5][6][7] Cypin is a major cytosolic protein that interacts with PSD-95. It promotes localized microtubule assembly in neuronal dendrites.[8]

Xanthine synthesis from guanine

References

  1. ^ a b c GRCh38: Ensembl release 89: ENSG00000119125 – Ensembl, May 2017
  2. ^ a b c GRCm38: Ensembl release 89: ENSMUSG00000058624 – Ensembl, May 2017
  3. ^ "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  4. ^ "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  5. ^ Hitchings GH, Falco EA (Oct 1944). "The Identification of Guanine in Extracts of Girella Nigricans: The Specificity of Guanase". Proceedings of the National Academy of Sciences of the United States of America. 30 (10): 294–7. Bibcode:1944PNAS...30..294H. doi:10.1073/pnas.30.10.294. PMC 1078714. PMID 16578130.
  6. ^ Kalckar HM (1947). "Differential spectrophotometry of purine compounds by means of specific enzymes; studies of the enzymes of purine metabolism". J. Biol. Chem. 167 (2): 461–75. doi:10.1016/S0021-9258(17)30999-7. PMID 20285041.
  7. ^ Rabinowitz JC, Barker HA (Jan 1956). "Purine fermentation by Clostridium cylindrosporum. II. Purine transformations". The Journal of Biological Chemistry. 218 (1): 161–73. doi:10.1016/S0021-9258(18)65881-8. PMID 13278325.
  8. ^ Firestein BL, Firestein BL, Brenman JE, Aoki C, Sanchez-Perez AM, El-Husseini AE, Bredt DS (1999). "Cypin: a cytosolic regulator of PSD-95 postsynaptic targeting". Neuron. 24 (3): 659–72. doi:10.1016/S0896-6273(00)81120-4. PMID 10595517.
  • Guanine+deaminase at the U.S. National Library of Medicine Medical Subject Headings (MeSH)
  • Overview of all the structural information available in the PDB for UniProt: Q9Y2T3 (Human Guanine deaminase) at the PDBe-KB.
  • v
  • t
  • e
Purine metabolism
Anabolism
R5PIMP:
IMP→AMP:
IMP→GMP:
Nucleotide salvage
Catabolism
Pyrimidine metabolism
Anabolism
Catabolism
Deoxyribonucleotides
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