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A single case of Hodgkin's lymphoma showed strong cytoplasmic positivity. A few gliomas and urothelial cancers showed weak to moderate staining. Remaining cancers were negative.
GENE INFORMATION
Gene name
PTPRD (HGNC Symbol)
Synonyms
HPTP, PTPD
Description
Protein tyrosine phosphatase, receptor type, D (HGNC Symbol)
Entrez gene summary
The protein encoded by this gene is a member of the protein tyrosine phosphatase (PTP) family. PTPs are known to be signaling molecules that regulate a variety of cellular processes including cell growth, differentiation, mitotic cycle, and oncogenic transformation. This PTP contains an extracellular region, a single transmembrane segment and two tandem intracytoplasmic catalytic domains, and thus represents a receptor-type PTP. The extracellular region of this protein is composed of three Ig-like and eight fibronectin type III-like domains. Studies of the similar genes in chicken and fly suggest the role of this PTP is in promoting neurite growth, and regulating neurons axon guidance. Multiple alternatively spliced transcript variants of this gene have been reported. A related pseudogene has been identified on chromosome 5. [provided by RefSeq, Jan 2010]