TRAPPC9 (trafficking protein particle complex 9) was reported to show biased paternal expression in
human fibroblasts (Morcos L et al, 2011).
An intronic region of TRAPPC9 show parent-of-origin specific methylation (Gertz J et al, 2011).
Biased paternal expression was found in mice but was reported to be a probable false positive result due
to sense overlap with Peg13 (Andergassen D et
See entry for mouse Trappc9 that shows biased maternal expression in the brain only.