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Abstract
SDS-polyacrylamide gel electrophoresis and immunoblot were applied to analysis of plasma proteins immunologically related to inter-α-trypsin inhibitor (ITI). In this system, anti-ITI sera were able to identify ITI and other components with an M r near 120 kDa which would be degradation products of ITI by limited proteolysis. An anti-UTI (urinary trypsin-inhibitor) serum could detect, beside these derivatives, two minor components ( M r values near 90 and 60 kDa). Analysis of perchloric acid supernatants of plasma samples, using the same technic, induced visualization of a new component, similar to urinary trypsin inhibitor which could not be detected by direct analysis. This one was also characterized in a higher content in pathological samples (renal failure and infectious diseases).
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Schedule a callMore From: Biochimica et Biophysica Acta (BBA) - Protein Structure and Molecular Enzymology
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