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Most of the cancer tissues displayed weak to moderate cytoplasmic positivity with additional nuclear staining in a few cases. Many renal cancers along with rare cases of melanomas and pancreatic cancers were strongly stained. Several colorectal, breast and prostate cancers were negative.
Most cancers displayed weak to moderate nuclear positivity. Additional cytoplasmic staining was observed in testical, breast, cervical and colorectal cancers and melanoma. Several cases of cervical cancer showed strong nuclear positivity. Prostate and renal cancers were weakly stained or negative.
Strong cytoplasmic immunoreactivity was found in Reed-Sternberg cells of Hodgkins lymphoma. A few colo-rectal, testicular- and endometrial carcinomas showed moderate to strong cytoplasmic positivity. Most other carcinomas were weakly stained. Weak staining of the nucleolus was seen in some cancers such as cervical carcinomas.
GENE INFORMATION
Gene name
IPO5 (HGNC Symbol)
Synonyms
IMB3, KPNB3, MGC2068, Pse1, RANBP5
Description
Importin 5 (HGNC Symbol)
Entrez gene summary
Nucleocytoplasmic transport, a signal- and energy-dependent process, takes place through nuclear pore complexes embedded in the nuclear envelope. The import of proteins containing a nuclear localization signal (NLS) requires the NLS import receptor, a heterodimer of importin alpha and beta subunits also known as karyopherins. Importin alpha binds the NLS-containing cargo in the cytoplasm and importin beta docks the complex at the cytoplasmic side of the nuclear pore complex. In the presence of nucleoside triphosphates and the small GTP binding protein Ran, the complex moves into the nuclear pore complex and the importin subunits dissociate. Importin alpha enters the nucleoplasm with its passenger protein and importin beta remains at the pore. Interactions between importin beta and the FG repeats of nucleoporins are essential in translocation through the pore complex. The protein encoded by this gene is a member of the importin beta family. [provided by RefSeq, Jul 2008]
Transporters Transporter channels and pores Predicted intracellular proteins Plasma proteins Protein evidence (Kim et al 2014) Protein evidence (Ezkurdia et al 2014)