462a_prac_prob_7_2013_key

Would you expect it to inactivate subtilisin papain

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: e Arg) 2. As discussed in lecture, DIPF is a group-specific reagent that inactivates chymotrypsin. Would you expect it to inactivate subtilisin? Papain? HIV protease? Explain why or why not in each case, basing your answer on what you learned in lecture about the active sites of these enzymes. Yes to subtilisin, no to papain or HIV protease. Subtilisin is a serine protease, papain is a cysteine protease and HIV protease is an aspartyl protease. Only subtilisin has a serine in its active site that DIPF would be expected to react with. 3. Chymotrypsin has a lower kcat at pH 5.5 than at pH 7.5. Based on standard side-chain pKa va...
View Full Document

This test prep was uploaded on 02/25/2014 for the course BIOC 462A taught by Professor Ziegler,baldwin during the Spring '08 term at University of Arizona- Tucson.

Ask a homework question - tutors are online