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9 (a) In the box below, draw the dipeptide Phe-Arg at pH 7, with the N-terminus...
1. Draw the dipeptide His-Gly at pH 7.4. 2. Label the amino terminus, the carboxy terminus,...
1. Draw the dipeptide His-Gly at pH 7.4. 2. Label the amino terminus, the carboxy terminus, the two alpha carbons, and the peptide bond (1pt). 3. Calculate it’s net charge. 4. What is the net charge of this dipeptide at pH = 2? 5. List the levels of protein structure and the types of bonds/interactions that are characteristic of each level.
6. A peptide has the sequence Cys-His-Phe-Glu-Ala-Arg a. Write the single letter sequence of the peptide...
6. A peptide has the sequence Cys-His-Phe-Glu-Ala-Arg a. Write the single letter sequence of the peptide b. Calculate the percentage and indicate the charge of the predominant peptide species at pH 6.5. Use the following pKa values: pKa Cys = 8.3, pKa N-terminus = 10.8, pKa His =6.0, pKa Glu = 4.3, pKa Arg = 12.5, pKa C-terminus =2.0 c. What is the charge of the peptide at pH 4.3? d. Draw the chemical structure of the predominant peptide species...
Can anyone confirm if these are correct? List and draw the structure(s) the amino acid(s) in...
Can anyone confirm if these are correct?
List and draw the structure(s) the amino acid(s) in which would have a-1 net charge at pH? List the amino acid(s) in which would have a + 1 net charge at pH 7? Draw the structure- of the peptide Arg-Asp-His-Ser-Gly at pH 7. List the N-terminus and C-terminus. Make sure the amide bonds are 'trans'. Give the products of a trypsin digestion of the peptide: His-phe-lys-val-asp-asp-arg-val Draw the full structure of the predominant...
just complete 8-10 please coo CH3 CH2 H CH H H HN-c-c-N-C-C-N-C-C-N-C-Coo H OH OH OH...
just complete 8-10 please
coo CH3 CH2 H CH H H HN-c-c-N-C-C-N-C-C-N-C-Coo H OH OH OH 1. How many amino acid residues are in this structure? 2. How many peptide bonds are in this structure? 3. What is the name of the C terminal residue? 4. What is the one-letter abbreviation of the N-terminal residue? 5. What is the sequence, given in three-letter code, of this peptide? 6. Circle one peptide bond. 7. Circle one alpha-carbon. 8. What is the...
draw the ionized polypeptide made of Phe-Asp-Cys-Arg at pH 7
draw the ionized polypeptide made of Phe-Asp-Cys-Arg at pH 7
Draw the structure of a dipeptide of lysine-glycine (in that order!) at a pH of 7....
Draw the structure of a dipeptide of lysine-glycine (in that order!) at a pH of 7. The pKa for the carboxyl group is 2, for the amino group is 9, and the R group for lysine is 10. Hint: Be mindful of the N and C termini. Amino acid sequences are written in a very specific order.
-HAPTER 4 CLAUOVOR " Tyrosine O Asparticauid Ho iX !! HOH Peptide Bond Alanie Y qoo...
-HAPTER 4 CLAUOVOR " Tyrosine O Asparticauid Ho iX !! HOH Peptide Bond Alanie Y qoo Guysine Сн, / сн. н сH, Hн fan-e--c-coo- alpha HH OH OH H Carbon How many amino acid residues are in this structure? 48 amino acid residles How many peptide bonds are in this structure? 3 Peptide bonds What is the name of the C terminal residue? Gusine What is the one-letter abbreviation of the N-terminal residue? What is the sequence, given in three-letter...
C) a (energy required) minus, the C-terminus, and box all the peptide 33) (8 pts) Draw...
C) a (energy required) minus, the C-terminus, and box all the peptide 33) (8 pts) Draw the te bonds 34) (7 pts) The following sequence of triplets is in the template DNA strand: 3 GGGI TCAI CCAI AGT 5. Write the corresponding mRNA section and label the 3 and 5' ends. What sequence of amino acids would be placed in a peptide chain? Module 9 Worksheet Page 1
A) Draw the dipeptide R-T at pH 7 and CLEARLY label the peptide bond to be...
A) Draw the dipeptide R-T at pH 7 and CLEARLY label the peptide bond to be broken in the presence of trypsin. 3pts B) Draw the five-step mechanism for the trypsin cleavage of the dipeptide. 5pts C) Label the transition state each time it is formed. 1pt D) What mechanism is used to describe this bisubstrate reaction? 1 pt
6. A peptide has the sequence Cys-His-Phe-Glu-Ala-Arg a. Write the single letter sequence of the peptide b. Calculate the percentage and indicate the charge of the predominant peptide species at pH 6.5. Use the following pKa values: pKa Cys = 8.3, pKa N-terminus = 10.8, pKa His =6.0, pKa Glu = 4.3, pKa Arg = 12.5, pKa C-terminus =2.0 c. What is the charge of the peptide at pH 4.3? d. Draw the chemical structure of the predominant peptide species...
Can anyone confirm if these are correct?
List and draw the structure(s) the amino acid(s) in which would have a-1 net charge at pH? List the amino acid(s) in which would have a + 1 net charge at pH 7? Draw the structure- of the peptide Arg-Asp-His-Ser-Gly at pH 7. List the N-terminus and C-terminus. Make sure the amide bonds are 'trans'. Give the products of a trypsin digestion of the peptide: His-phe-lys-val-asp-asp-arg-val Draw the full structure of the predominant...
just complete 8-10 please
coo CH3 CH2 H CH H H HN-c-c-N-C-C-N-C-C-N-C-Coo H OH OH OH 1. How many amino acid residues are in this structure? 2. How many peptide bonds are in this structure? 3. What is the name of the C terminal residue? 4. What is the one-letter abbreviation of the N-terminal residue? 5. What is the sequence, given in three-letter code, of this peptide? 6. Circle one peptide bond. 7. Circle one alpha-carbon. 8. What is the...
-HAPTER 4 CLAUOVOR " Tyrosine O Asparticauid Ho iX !! HOH Peptide Bond Alanie Y qoo Guysine Сн, / сн. н сH, Hн fan-e--c-coo- alpha HH OH OH H Carbon How many amino acid residues are in this structure? 48 amino acid residles How many peptide bonds are in this structure? 3 Peptide bonds What is the name of the C terminal residue? Gusine What is the one-letter abbreviation of the N-terminal residue? What is the sequence, given in three-letter...
C) a (energy required) minus, the C-terminus, and box all the peptide 33) (8 pts) Draw the te bonds 34) (7 pts) The following sequence of triplets is in the template DNA strand: 3 GGGI TCAI CCAI AGT 5. Write the corresponding mRNA section and label the 3 and 5' ends. What sequence of amino acids would be placed in a peptide chain? Module 9 Worksheet Page 1
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