Trappc9 deficiency causes parent-of-origin dependent microcephaly and obesity. - Liang ZS; Cimino I; Yalcin B; Raghupathy N; Vancollie VE; Ibarra-Soria X; Firth HV; Rimmington D; Farooqi IS; Lelliott CJ; Munger SC; O'Rahilly S; et al. (PLoS genetics, 2020)