( ii ) the myc coding region in mh2 is preceded by 181 nucleotides derived from the intron immediately upstream from the second exon of the chicken cellular proto-myc gene , followed by an rna splice acceptor site shared with the proto-myc gene , followed by an rna splice acceptor site shared with the proto-myc , beyond which it is colinear up to a 3'-termination codon and 40 noncoding nucleotides with the myc sequences of avian retrovirus mc29 and chicken proto-myc .
C0021920
intron
C0007634
cellular