Background：TRAPPC9, also named as KIAA1882 and NIBP, belongs to the NIBP family. It functions as an activator of NF-kappa-B through increased phosphorylation of the IKK complex. TRAPPC9 may function in neuronal cells differentiation and play a role in vesicular transport from endoplasmic reticulum to Golgi. TRAPPC9 was found in neurons of the cerebral cortex, hippocampus, and deep gray matter. Western blotting indicates molecular weight of TRAPPC9 is 130-140 kDa, and 250 kDa may be detected with extensive posttranslational modification of TRAPPC9.
