Structure and Properties of Peptides The peptide bond in proteins is usually trans unless proline is the next amino acid only found between proline residues is planar because of steric hinderance usually cis unless proline is the next amino acid usually trans unless proline is the next amino acid only found between proline residues is planar because of steric hinderance usually cis unless proline is the next amino acid 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 hydrophobic residues polar residues positively charged residues negatively charged residues hydrophobic residues polar residues positively charged residues ANSWER DOWNLOAD EXAMIANS APP
Structure and Properties of Peptides The heme is held in place by a bond between the Fe2+ and cysteine 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 ANSWER DOWNLOAD EXAMIANS APP
Structure and Properties of Peptides What is the effect of a decrease in pH on hemoglobin oxygen affinity? Increase affinity in muscle cell otherwise decrease No effect on oxygen affinity Decrease in oxygen affinity Increase in oxygen affinity Increase affinity in muscle cell otherwise decrease No effect on oxygen affinity Decrease in oxygen affinity Increase in oxygen affinity ANSWER DOWNLOAD EXAMIANS APP
Structure and Properties of Peptides Which of the three subunits of the G proteins binds GDP and GTP? Delta Beta Gamma Alpha Delta Beta Gamma Alpha ANSWER DOWNLOAD EXAMIANS APP
Structure and Properties of Peptides When pO2 = Kd of myoglobin, the fractional saturation (YO2) is about 0.5 1.7 0.9 0.1 0.5 1.7 0.9 0.1 ANSWER DOWNLOAD EXAMIANS APP
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