Structure and Properties of Peptides Secondary structure in protein refers to protein made up of more than one polypeptide chain linear sequence of amino acids joined together by peptide bond three dimensional arrangement of all amino acids in polypeptide chain regular folding of regions of the polypeptide chain protein made up of more than one polypeptide chain linear sequence of amino acids joined together by peptide bond three dimensional arrangement of all amino acids in polypeptide chain regular folding of regions of the polypeptide chain ANSWER DOWNLOAD EXAMIANS APP
Structure and Properties of Peptides The peptide bond in proteins is only found between proline residues usually trans unless proline is the next amino acid usually cis unless proline is the next amino acid is planar because of steric hinderance only found between proline residues usually trans unless proline is the next amino acid usually cis unless proline is the next amino acid is planar because of steric hinderance ANSWER DOWNLOAD EXAMIANS APP
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 Heme is the binding pocket of myoglobin and hemoglobin and is composed of positively charged residues negatively charged residues hydrophobic residues polar residues positively charged residues negatively charged residues hydrophobic residues polar 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 has partial double bond character both (a) and (b) is stronger than an ordinary single bond is still not completely understood has partial double bond character both (a) and (b) is stronger than an ordinary single bond is still not completely understood 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 Increase in oxygen affinity Decrease in oxygen affinity No effect on oxygen affinity Increase affinity in muscle cell otherwise decrease Increase in oxygen affinity Decrease in oxygen affinity No effect on oxygen affinity ANSWER DOWNLOAD EXAMIANS APP
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