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Distinct nuclear expression in a fraction of cells in squamous epithelia, lymphoid tissues, gastrointestinal tract, testis and glandular cells of female genitalia.
ANTIBODY IHC RELIABILITY
Data reliability description
Antibody staining mainly consistent with RNA expression data.
A majority of malignant tissues displayed moderate nuclear staining in a small fraction of the cells. Most positivity was observed in testicular- and urothelial cancers.
GENE INFORMATION
Gene name
BIRC5 (HGNC Symbol)
Synonyms
API4, EPR-1, survivin
Description
Baculoviral IAP repeat containing 5 (HGNC Symbol)
Entrez gene summary
This gene is a member of the inhibitor of apoptosis (IAP) gene family, which encode negative regulatory proteins that prevent apoptotic cell death. IAP family members usually contain multiple baculovirus IAP repeat (BIR) domains, but this gene encodes proteins with only a single BIR domain. The encoded proteins also lack a C-terminus RING finger domain. Gene expression is high during fetal development and in most tumors, yet low in adult tissues. Alternatively spliced transcript variants encoding distinct isoforms have been found for this gene. [provided by RefSeq, Jun 2011]