Structure and Properties of Peptides The heme is held in place by a bond between the Fe3+ and histidine the Fe2+ and histidine the Fe3+ and cysteine the Fe2+ and cysteine the Fe3+ and histidine the Fe2+ and histidine the Fe3+ and cysteine the Fe2+ and cysteine ANSWER DOWNLOAD EXAMIANS APP
Structure and Properties of Peptides Disulfide bonds most often stabilize the native structure of extracellular proteins hydrophobic proteins dimeric proteins intracellular proteins extracellular proteins hydrophobic proteins dimeric proteins intracellular proteins ANSWER DOWNLOAD EXAMIANS APP
Structure and Properties of Peptides Peptides in the fully extended chain conformation also have a cis geometry in their peptide bonds do not occur in nature have Y = F = 180° are equivalent to the (3-sheet structure also have a cis geometry in their peptide bonds do not occur in nature have Y = F = 180° are equivalent to the (3-sheet structure ANSWER DOWNLOAD EXAMIANS APP
Structure and Properties of Peptides Heme is the binding pocket of myoglobin and hemoglobin and is composed of negatively charged residues polar residues hydrophobic residues positively charged residues negatively charged residues polar residues hydrophobic residues positively charged residues 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 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 is still not completely understood ANSWER DOWNLOAD EXAMIANS APP
Structure and Properties of Peptides The same peptide, Val-Lys-Glu-Met-Ser-Trp-Arg-Ala. was digested with chymotrypsin 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