SUN domain-containing protein 2 (UniProt Q9UH99; also known as Protein unc-84 homolog B, Rab5-interacting protein, Rab5IP, Sad1/unc-84 protein-like 2) is encoded by the SUN2 (also known as FRIGG, KIAA0668, RAB5IP, UNC84B) gene (Gene ID 25777) in human. It is a single-pass nuclear envelope transmembrane protein that is highly expressed in heart, lung, and muscle. It has a predicted transmembrane domain and a C-terminal region with similarity to the S. pombe spindle pole body protein Sad1. It may also facilitate a nuclear-centrosomal interaction required for nuclear migration and anchorage. It anchors chromosome movement in the prophase of meiosis and is required for telomere attachment to nuclear envelope and gametogenesis. SUN2 protein may also function on endocytic vesicles as a receptor for RAB5-GDP and participate in the activation of RAB5. Slight overexpression of SUN2 protein is seen in heart tissues form patients with congenital heart defects.
Synonyms: SUN domain-containing protein 2, Protein unc-84 homolog B, Rab5-interacting protein, Rab5IP, Sad1/unc-84 protein-like 2
Application: Western Blotting Analysis: 0.5 µg/mL from a representative lot detected SUN2 in 10 µg of HepG2 cell lysate.Immunocytochemistry Analysis: A representative lot immunostained nucleus of fibroblasts from Sun2+/-, but not Sun2-/- mice (Courtesy of Dr Brian Burke, Institute of Medical Biology, A*STAR).Western Blotting Analysis: A representative lot detected SUN2 in heart tissue lysate from Sun2+/-, but not Sun2-/- mice (Courtesy of Dr Brian Burke, Institute of Medical Biology, A*STAR).Immunofluorescence Analysis (IF): A representative lot detected mouse testis tissue (Courtesy of Dr Brian Burke, Institute of Medical Biology, A*STAR).Immunofluorescence Analysis (IF): A representative lot tested on different mouse tissues (Courtesy of Dr Brian Burke, Institute of Medical Biology, A*STAR).Immunofluorescence Analysis (IF): A representative lot detected immortalized fibroblasts derived from SUN2 +/+, SUN2 -/- , Sun1 -/- double knockout Sun2 -/- Sun1 -/- mouse pups (Courtesy of Dr Brian Burke, Institute of Medical Biology, A*STAR).
Other Notes: Concentration: Please refer to lot specific datasheet.