Siiyama (serine 53 (TCC) to phenylalanine 53 (TTC)). A new alpha 1-antitrypsin-deficient variant with mutation on a predicted conserved residue of the serpin backbone.

Abstract excerpt

alpha 1-antitrypsin (alpha 1AT), a plasma serine protease inhibitor, increases the risk of precocious pulmonary emphysema in individuals when deficient. Although more than 25 years have passed since a deficiency in the serum level of alpha 1AT was reported, it is only recently that the consequence of the amino acid replacement which leads to the deficient state has been discussed in terms of the crystallographic...

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