Sequence homology and structural comparison between the chromosomal human α1-antitrypsin and chicken ovalbumin genes

Abstract
The human chromosomal .alpha.1-antitrypsin gene was cloned. This gene is approximately 5 kilobase pairs long and contains 3 intervening sequences in the peptide-coding region. DNA sequences coding for the amino and carboxyl termini of .alpha.1-antitrypsin were identified. Human .alpha.1-antitrypsin and chicken ovalbumin show significant sequence homology and belong to a common protein superfamily. Yet the number, position and size of intervening sequences reveal that the 2 genes are dissimilar.
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