Why is peptide synthesis carried out from C terminus to N terminus using dicyclohexylcarbodiimide (DCC)? Can you illustrate the explanation with a mechanism/drawing?

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Which of the following amous indicates the peptide bond? CA) (B) (C) (D) (E) fut H₂N-CH-C-N-CH-C-OH CHPH H CH3

Q2. Complete following reaction. Show peptide linkage. НО- -CH₂CH- NH₂ . Iܐ -OH + HOOC-H₂C-CH- NH -OH

Draw a diagram of the linear and ring structures of ribose. Show the biochemical mechanism of cyclization of each and name the resultant ring – including the ring type & anomeric carbon designation. Draw and name an amine version, reduced version, and oxidized version, either in ring or Fisher projection.

How many different tetrapeptides can be made under the following conditions? Q.) The tetrapeptide contains one unit each of Asp, Glu, Pro, and Phe.

Draw resonance structures for a peptide bond between Tyr and Pro.

Draw the structure for the peptide VSK.

Name the following peptide by its one-letter abbreviation. Would you anticipate this peptide would be soluble or insoluble in water? Would this peptide be considered polar or nonpolar? S. NH2 One-letter Abbreviation: [ Select ] Soluble or insoluble: [ Select ] Polar or nonpolar: [ Select] IZ ZI |||||2

what is the sequence for the following peptide in BOTH 3 and 1 letter codes