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3. What do the Phi (Q) and psi (y) angles represent? How do these angles differ...
Why will the phi/psi angles of an amino acid in an alpha-helix be different from the phi/psi angles of an amino acid in a beta-sheet? How are phi/psi angles possible fro Pro and for Gly different from those of other amino acids?
what is the difference and significanece between psi and phi angles? please provide a detailed description.
A short 8-residue sequence of a polypeptide is determined to have phi angles ranging from -65 degrees to -80 degrees and psi angles ranging from -40 to -50 degrees. What conclusion can be drawn from this data? (Pick One) 1. The sequence has no defined secondary structure. 2. This segment is mostly beta sheet. 3. This segment has helical content. 4. No conclusion cam be drawn. Please answer and explain. Thanks!
Why do actual bond angles differ from the ideal bond angles? How does a lone pair of electrons affect bond angles?
24. How does insulin end up with 2 separate chains when it is produced as one sequence o amino acids. (4 points) 25.What is the difference between the hydrogen bonding which holds the secondary protein structures of and alpha helix and a beta pleated sheet together and the hydrogen bonding that holds the tertiary structure together? (4 points) 26. List the 6 classes of enzymes and describe what types of reactions they catalyze. (3 points per class of enzymes, 18...
9. What is the disulfide bond? (a covalent bond between sulfurs from two cysteine molecules by oxidation) 10. What is the primary structure of a protein? 11. What is the secondary structure of a protein? 12. What is the characteristics of alpha-helix? 13. What is the characteristics of beta-sheet? 14. What is the characteristics of turns and loops? 15. What is the Ramachandran plot? (mention the phi and psy torsion angles) 16. What is the tertiary structure of a protein?...
What is a drug receptor? What are the major types and how do they differ? What’s the receptor phenomena of upregulation and downregulation? What are the major components of dose-response function and what do they represent? Define the term full, partial, and inverse agonist; allosteric drug; and antagonist.
Describe and compare the following HVAC systems. How do they differ in function and what are the relative advantages and disadvantages of the systems. Graphically represent each system with a sketch. All-air systems All-water systems Air-water systems
In a probit model in economics, what does phi stand for? How do you calculate it in easy steps?
Part A: How do proteins differentiate between ssRNA, dsRNA, DNA-RNA hybrids, and dsDNA? Part B: Why are the alpha helix and the beta sheet the most common secondary structure elements? Part C: Describe the two ways proteins can interact with DNA, and the differences between both. Which is similar to the RNA recognition motif?