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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 

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[Ala214,38]aprotinin: preparation by partial desulphurization of aprotinin by means of Raney nickel and comparison with other aprotinin derivatives.

Treatment of aprotinin with Raney nickel in the presence or absence of denaturants yielded [Ala2 14,38]aprotinin. Aprotinin and [Ala2 14,38]aprotinin were separated by ion exchange chromatography at pH 8 using CM-Sepharose, fast flow. [Ala2 14,38]aprotinin is a proteinase inhibitor, but it possesses lower affinities than aprotinin, for the enzymes trypsin, alpha-chymotrypsin, pancreatic kallikrein and plasmin as reflected by higher Ki values [Ala2 14,38]aprotinin is slowly degraded by trypsin. The optical activity of [Ala2 14,38]aprotinin in different solvents is quite similar to that of aprotinin, or that of its hydrolysis products, [seco-15/16]aprotinin or [di-seco-15/16,39/40]-aprotinin. This is taken as good evidence for analogous molecular conformations of all these substances.[1]

References

  1. [Ala214,38]aprotinin: preparation by partial desulphurization of aprotinin by means of Raney nickel and comparison with other aprotinin derivatives. Schnabel, E., Schröder, W., Reinhardt, G. Biol. Chem. Hoppe-Seyler (1986) [Pubmed]
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