Mus musculus Gene: Oaz2
Summary
InnateDB Gene IDBG-178329.6
Last Modified 2014-10-13 [Report errors or provide feedback]
Gene Symbol Oaz2
Gene Name ornithine decarboxylase antizyme 2
Synonyms AZ-2; AZ2; Oaz2-ps; Sez15
Species Mus musculus
Ensembl Gene ENSMUSG00000040652
Encoded Proteins
Protein Structure
Useful resources Stemformatics EHFPI ImmGen
Entrez Gene
Summary Ornithine decarboxylase catalyzes the conversion of ornithine to putrescine in the first and apparently rate-limiting step in polyamine biosynthesis. The ornithine decarboxylase antizymes play a role in the regulation of polyamine synthesis by binding to and inhibiting ornithine decarboxylase. Antizyme expression is auto-regulated by polyamine-enhanced translational frameshifting. The antizyme encoded by this gene inhibits ornithine decarboxylase but does not accelerate its degradation. [provided by RefSeq, Jul 2008]
The protein encoded by this gene belongs to the ornithine decarboxylase antizyme family, which plays a role in cell growth and proliferation by regulating intracellular polyamine levels. Expression of antizymes requires +1 ribosomal frameshifting, which is enhanced by high levels of polyamine in cells. Antizymes in turn bind to and inhibit ornithine decarboxylase (ODC), the key enzyme in polyamine biosynthesis pathway; thus, completing the auto-regulatory circuit. This gene encodes antizyme 2, the second member of the antizyme family. Like antizyme 1, antizyme 2 has broad tissue distribution, inhibits ODC activity and polyamine uptake, and stimulates ODC degradation in vivo, however, it fails to promote ODC degradation in vitro. Antizyme 2 is expressed at lower levels than antizyme 1, but is evolutionary more conserved, suggesting it likely has an important biological role. Studies also show different subcellular localization of antizymes 1 and 2, indicating specific function for each antizyme in discrete compartments of the cell. Alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Aug 2014]
Gene Information
Type Protein coding
Genomic Location Chromosome 9:65668001-65690300
Strand Forward strand
Band C
Transcripts
ENSMUST00000046490 ENSMUSP00000136873
ENSMUST00000153700 ENSMUSP00000136914
ENSMUST00000136166 ENSMUSP00000136082
ENSMUST00000137696
ENSMUST00000128928
ENSMUST00000154502
ENSMUST00000147732 ENSMUSP00000136701
ENSMUST00000128664 ENSMUSP00000137468
Interactions
Number of Interactions This gene and/or its encoded proteins are associated with 1 experimentally validated interaction(s) in this database.
They are also associated with 4 interaction(s) predicted by orthology.
Experimentally validated
Total 1 [view]
Protein-Protein 1 [view]
Protein-DNA 0
Protein-RNA 0
DNA-DNA 0
RNA-RNA 0
DNA-RNA 0
Predicted by orthology
Total 4 [view]
Gene Ontology

Molecular Function
Accession GO Term
GO:0004857 enzyme inhibitor activity
GO:0005515 protein binding
GO:0008073 ornithine decarboxylase inhibitor activity
Biological Process
GO:0006595 polyamine metabolic process
GO:0043086 negative regulation of catalytic activity
Cellular Component
GO:0005634 nucleus
Orthologs
Species
Homo sapiens
Bos taurus
Gene ID
Gene Order
Not yet available
Pathways
NETPATH
REACTOME
Metabolism pathway
Metabolism of amino acids and derivatives pathway
Regulation of ornithine decarboxylase (ODC) pathway
KEGG
INOH
PID NCI
Pathway Predictions based on Human Orthology Data
NETPATH
REACTOME
Regulation of ornithine decarboxylase (ODC) pathway
Metabolism of amino acids and derivatives pathway
Metabolism pathway
KEGG
INOH
PID NCI
Cross-References
SwissProt
TrEMBL
UniProt Splice Variant
Entrez Gene
UniGene Mm.116749 Mm.473237
RefSeq NM_010952
OMIM
CCDS CCDS57683
HPRD
IMGT
MGI ID
MGI Symbol
EMBL
GenPept
RNA Seq Atlas