the longest cdna molecule is 900 base pairs ( bp ) long and includes a 5 ' noncoding sequence followed by two neighboring aug codons both in the consensus , eukaryotic initiator context , a 56-codon-long transit peptide sequence ( starting from the first aug codon ) , the amino acid sequence of mature l12 protein , and a 238 bp long 3 ' downstream noncoding sequence including a polyadenylation signal and the start of the poly ( a ) tail .
C0009221
codon
C0242610
starting