Structure and Properties of Peptides The peptide, Val-Lys-Glu-Met-Ser-Trp-Arg-Ala, was digested with cyanogen bromide (CNBr) to produce: Val-Lys-Glu-Met + Ser-Trp-Arg-Ala Val-Lys-Glu-Met-Ser-Trp + Arg-Ala Val-Lys + Glu-Met-Ser + Trp-Arg-Ala Val-Lys-Glu + Met-Ser-Trp-Arg-Ala Val-Lys-Glu-Met + Ser-Trp-Arg-Ala Val-Lys-Glu-Met-Ser-Trp + Arg-Ala Val-Lys + Glu-Met-Ser + Trp-Arg-Ala Val-Lys-Glu + Met-Ser-Trp-Arg-Ala ANSWER DOWNLOAD EXAMIANS APP
Structure and Properties of Peptides The oxygen in hemoglobin and myoglobin is bound to lysine residues in the protein the nitrogen atoms on the heme the iron atom in the heme group histidine residues in the protein lysine residues in the protein the nitrogen atoms on the heme the iron atom in the heme group histidine residues in the protein ANSWER DOWNLOAD EXAMIANS APP
Structure and Properties of Peptides What was the first protein whose complete tertiary structure was determined? Myoglobin Lysozyme Pancreatic DNase Pancreatic ribonuclease Myoglobin Lysozyme Pancreatic DNase Pancreatic ribonuclease ANSWER DOWNLOAD EXAMIANS APP
Structure and Properties of Peptides Hydrogen bonds in a-helices are not present at Phe residues more numerous than Vander Waals interactions roughly parallel to the helix axis analogous to the steps in a spiral staircase not present at Phe residues more numerous than Vander Waals interactions roughly parallel to the helix axis analogous to the steps in a spiral staircase ANSWER DOWNLOAD EXAMIANS APP
Structure and Properties of Peptides The resonance structures that can be drawn for the peptide bond indicate that the peptide bond is still not completely understood is stronger than an ordinary single bond both (a) and (b) has partial double bond character is still not completely understood is stronger than an ordinary single bond both (a) and (b) has partial double bond character ANSWER DOWNLOAD EXAMIANS APP
Structure and Properties of Peptides The Ramachandran Plot illustrates the fact that the F & Y angles can assume approximately three different values the F & Y angles can assume only a single value in a protein the peptide bond is planar the F & Y angles can assume any value in a peptide the F & Y angles can assume approximately three different values the F & Y angles can assume only a single value in a protein the peptide bond is planar the F & Y angles can assume any value in a peptide ANSWER DOWNLOAD EXAMIANS APP
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