| PTP4A3 | 
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| Identifiers | 
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| Aliases | PTP4A3, PRL-3, PRL-R, PRL3, protein tyrosine phosphatase type IVA, member 3, protein tyrosine phosphatase 4A3 | 
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| External IDs | OMIM: 606449; MGI: 1277098; HomoloGene: 22500; GeneCards: PTP4A3; OMA:PTP4A3 - orthologs | 
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| | Gene location (Mouse) | 
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 |  |  | Chr. | Chromosome 15 (mouse) | 
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 |  |  | Band | 15|15 D3 | Start | 73,594,994 bp | 
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 | End | 73,630,615 bp | 
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| | RNA expression pattern | 
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 | Bgee | | Human | Mouse (ortholog) | 
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 | | Top expressed in |  | apex of heart
 gastric mucosa
 muscle of thigh
 left ventricle
 gastrocnemius muscle
 right auricle of heart
 skeletal muscle tissue
 anterior pituitary
 tibial arteries
 right coronary artery
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 | | Top expressed in |  | muscle of thigh
 extensor digitorum longus muscle
 blood
 plantaris muscle
 medial head of gastrocnemius muscle
 tibialis anterior muscle
 neural layer of retina
 digastric muscle
 knee joint
 triceps brachii muscle
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 |  | More reference expression data | 
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 | BioGPS |  | 
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| Wikidata | 
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Protein tyrosine phosphatase type IVA 3 is an enzyme that in humans is encoded by the PTP4A3 gene.
The protein encoded by this gene belongs to a small class of prenylated protein tyrosine phosphatases (PTPs). PTPs are cell signaling molecules that play regulatory roles in a variety of cellular processes. This class of PTPs contain a PTP domain and a characteristic C-terminal prenylation motif. Studies of this class of PTPs in mice demonstrated that they were prenylated proteins in vivo, which suggested their association with cell plasma membrane. Overexpression of this gene in mammalian cells was reported to inhibit angiotensin-II induced cell calcium mobilization and promote cell growth. Two alternatively spliced variants exist.