Primary structure of the telopeptide and a portion of the helical domain of chicken type II procollagen as determined by DNA sequence analysis

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Abstract
A comparison of the nucleotide sequences of three new cDNA clones for chicken type II procollagen with the sequences of the other three types of chicken fibrillar procollagens reveals that the most conserved regions correlate with the positions of hydroxyproline, hydroxylysine, cysteine and lysine residues. On the basis of replacement-site-divergence calculations it is concluded that alpha 1(II) and alpha 1(I) procollagens diverged later than alpha 1(I) and alpha 2(I) procollagens.