Rat alpha-lactalbumin has a 17-residue-long COOH-terminal hydrophobic extension as judged by sequence analysis of the cDNA clones.

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RESUMO

cDNA for rat alpha-lactalbumin has been cloned in bacterial plasmid, and its sequence has been analyzed. The DNA sequence analysis shows that rat alpha-lactalbumin has 17 extra residues beyond the COOH terminus of the alpha-lactalbumin isolated and sequenced to date from other species. The predicted COOH-terminal sequence is hydrophobic and proline rich and bears some resemblance to beta-casein sequences.

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