Description
Aprotinin - from Bovine Lung 
 Aprotinin is a monomeric globular polypeptide derived from bovine lung tissue. It consists of a chain of 58 amino acids that fold into a stable, compact tertiary structure of the 'small SS-rich" type, containing 3 disulfides, a twisted β-hairpin and a C-terminal α-helix. 
 Aprotinin inhibits several serine proteases, specifically trypsin, chymotrypsin, plasmin  and kallikrein. Its action on kallikrein leads to the inhibition of the formation of factor XIIa. Binding is reversible with most aprotinin-protease complexes dissociating at pH >10 or < 3.  Aprotinin is freely soluble in water (>10 mg/ml) as well as low ionic strength aqueous buffers. 
 Product Specifications:
 Aprotinin
 (Trasylol, Trypsin inhibitor (basic), Iniprol) 
 Formula: C284H432N84O79S7 
 MW: 6511.44 g/mol 
 Color: White to off-white 
 Storage/Handling: Store at 2-8° C. 
 PubChem Chemical ID: 16130295