Draw a condensation reaction where a molecule of cysteine combines with a molecule of lysine, showing all reactants and products, and labeling a peptide linkage in your final product. Make sure the structures you draw include all hydrogens (leave every bond labeled and included in your drawing; don't use shorthand).

As we’ve discussed, a peptide bond is made when amino group of one amino acid combines with the carboxylic acid group of another amino acid (releasing a water molecule in the process). The C-N bond formed in this process is called a peptide bond. Peptide bonds have a few properties that might be unexpected. a) One property is that the molecular geometries around the C and N atom in the peptide bond are generally planar with bond angles of approximately 120 degrees. Provide an explanation for why the peptide bond would have this property, using Lewis structures, VSEPR theory and/or valence bond theory as appropriate.

Draw the peptide bond between alanine and threonine. Include all linked atoms. Indicate a free‐electron pair on the nitrogen atom. Using arrows indicate how this electron pair delocalizes. Copy this image but depict the peptide bond as a double bond and a single bond for the carbonyl group. Remember to include any charges. Using arrows again indicate how the charge/electrons on the oxygen delocalizes. Indicate the dual nature of the peptide bond (resonance) by linking the two images by a double arrow.

How many peptide bonds are in this peptide? (Just write the number or none) H. N- H,N-

Part C and D

please help and explain clearly for me

please write the Structure Activity Relationship (SAR)  of Atenolol and Betaxolol? Please write at your own words.

Identify the part of a generic amino acid that reacts with base and the part that reacts with acid. Briefly explain your answer.Hint: Draw Lewis structures for ammonia (NH 3) and acetic acid (CH 3COOH).

-Understand and be able to identify different interactions that factor into peptide/protein folding (e.g. hydrogen bonding, salt bridge interactions, disulfide bonding. Be able to predict these interactions given a peptide structure. -Understand basic molecular geometry in a peptide. What is the bond angle between amide N, C, and O atoms? Why is the angle like this?

Highlight each peptide bond in the molecule below. In addition, list the common names of the smaller molecules that would be released if all the peptide bonds were hydrolyzed. You can add more rows to the table if you need to. (Note: you do not need to list water.) If there are no peptide bonds in the molecule, just check the no peptide bonds box below the drawing area. Ono peptide bonds Add Row I Don't Know H₂N-C Submit CH₂ CH C–NH–CH—CO0 CH, CH3 molecules released if peptide bonds hydrolyzed (list one name per row) 0 CH3 00 X S X 3 alo Ar © 2023 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center Accessibility