Transcripts from GNGT1 (guanine nucleotide binding protein (G protein), gamma transducing activity
polypeptide 1) were reported to be detected only from the maternal allele in human-mouse
monochromosomal hybrids (Fig. 1 appears to show some paternal expression). Direct evidence of
imprinting was not obtained (Okita
C et al, 2003).
D et al, (2008) found biallelic expression in placenta and all fetal tissues examined.