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lüll Alpha 1-antitrypsin deficiency A conformational disease Carrell RW; Lomas DA; Sidhar S; Foreman RChest 1996[Dec]; 110 (6 Suppl): 243S-247SThe serpin family of protease inhibitors, to which alpha 1-antitrypsin belongs, has the unique feature of a mobile reactive center. Mutations within the critical regions of the molecule that control this mobility can allow premature changes in conformation with consequent abnormalities in folding and accompanying polymer formation. These abnormalities explain the plasma deficiency and liver inclusions associated with the common Z variant, as well as other variants of alpha 1-antitrypsin. The understanding of the molecular mechanisms provides a satisfying explanation for the clinical findings associated with these deficiency variants.|*Protein Conformation[MESH]|*alpha 1-Antitrypsin Deficiency[MESH]|Humans[MESH]|Liver Diseases/metabolism/physiopathology[MESH]|Models, Molecular[MESH]|Mutation[MESH]|Phenotype[MESH]|Polymers[MESH]|Serpins/chemistry[MESH]|Structure-Activity Relationship[MESH]|alpha 1-Antitrypsin/*chemistry[MESH] |