during the fine structural analysis of the 5 ' end of the 38 kb chicken pro alpha 2 ( i ) collagen gene , we failed to locate an exon , only 11 bp in size , which had been predicted from the dna sequence analysis of a cdna clone complementary to the 5 ' end of the pro alpha 2 ( i ) collagen mrna ( 1 ) .
C1333079
collagen gene
C0009325
collagen