Northern blot hybridization of ZNF41, by use of a probe corresponding to nucleotides 621–1099 of ZNF41 transcript variant 1. A, Adult tissues (left to right): heart, brain, placenta, lung, liver, skeletal muscle, kidney, and pancreas. B, Fetal tissues (left to right): brain, lung, liver, and kidney. C, Adult brain structures (left to right): amygdala, caudate nucleus, corpus callosum, hippocampus, whole brain, substantia nigra, and thalamus. Black arrowheads highlight the presence of a novel 6-kb transcript. Actin (A and C) or GAPDH (B) served as controls for RNA loading.