title: Primary structure of apovitellenin I from hen egg yolk and its comparison with emu apovitellenin I.
abstract: The amino acid sequence of apovitellenin I from hen egg yolk has been determined using both automatic and manual procedures; it comprises 82 residues. Hen apovitellenin shows considerable homology with emu apovitellenin I which contains 84 residues. Besides two deletions in the sequence, the hen protein differs in 28 positions from the emu protein; 26 of these positions may have arisen from single base changes. The changes are largely conservative ones, which suggest that the structure and function have been preserved despite extensive mutation.
mesh_terms: D000595:Amino Acid Sequence; D000596:Amino Acids / Q000032:analysis; D000818:Animals; D001059:Apoproteins / Q000032:analysis; D005075:Biological Evolution; D001717:Birds; D002645:Chickens; D004527:Egg Proteins / Q000032:analysis; D004530:Egg Yolk; D005260:Female; D008970:Molecular Weight; D009154:Mutation; D010446:Peptide Fragments
chemical_list: D000596:Amino Acids; D001059:Apoproteins; D004527:Egg Proteins; D010446:Peptide Fragments