BCHE 395-5 2014 Peptides and Proteins

change in amino and carboxyl with pep0de forma0on

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: spartyl-glycine 8 Your Turn •  A- G- G- I- E- S •  N- terminus? (amino terminus) •  C- terminus? (carboxy terminus) •  6- pep0de? ____- pep%de •  Alanyl- glycyl- ….- serine 9 Pep0des and Proteins: Sum up •  1.) Always two dis0nct ends to amino acid chain –  N- Terminal (NH3+); Amino terminus –  C- terminal (COO- ); Carboxy terminus •  2.) By conven0on, amino acids wriWen and numbered from the amino end (lee side) to the carboxy end (right) •  3.) Change in α- amino and α- carboxyl with pep0de forma0on (except at ends) •  4.) R group does not change with pep0de bond forma0on 10 Pep0des and Proteins •  Pep0des and proteins can be dis0nguished by ioniza9on behavior of their free ends AND R groups •  Characteris0c 0tra0on curves, and isoelectric points: pHi 11 Polypep0des and Protein Problem •  If given a group of amino acid structures, could you link them into a polypep0de chain? •  If given a polypep0de, could you circle the pep0de bonds and draw the free residues? Co...
View Full Document

{[ snackBarMessage ]}

Ask a homework question - tutors are online