Determine the sequence of a tetra peptide:
1)The second amino acid has a phenol in the side chain.
2)The amino acid at the amino terminal is acidic and the only acidic amino acid present.
3)Amino acid with CH3 side chain at C terminal.
2)Pepsin - cuts on the C-terminal side of phenylalanine, leucine, and glutamic acid. When digested with the pepsin the peptide gives a negative amino acid residue and neutral tripeptide
3)Cyanogen bromide- cuts on the C-terminal side of the methionine.
When digested by cyanogen bromide it gives a neutral amino acid residue, and negative tripeptide.
Determine the sequence of a tetra peptide: 1)The second amino acid has a phenol in the...
Sanger's reagent is used A) to determine the amino acid sequence of a peptide. B) to determine the C-terminal amino acid of a peptide. C) to determine the isoelectric point of a peptide. D) to determine the number of amino acids in a peptide. E) to determine the N-terminal amino acid of a peptide. Ninhydrin is used A) to determine the N-terminal amino acid of a peptide. B) to sequence amino acids in a peptide. C) to detect amino acids...
1. Partial hydrolysis of lysozyme yielded an octapeptide that was later identified as the N-terminal segment of the protein. From the following information, determine the sequence of this octapeptide. a. The following amino acids were identified after complete hydrolysis of the octapeptide: Arginine (Arg) Glycine (Gly) Phenylalanine (Phe) Cysteine (Cys) Leucine (Leu) Valine (Val) Glutamic Acid (Glu) Lysine (Lys) b. Treatment of the octapeptide with dinitroflurobenzene (Sanger reagent) followed by complete hydrolysis gave lysine (Lys) labeled with two dinitrophenyl (DNP) groups. c. Treatment of the octapeptide with trypsin gave lysine...
Question 13 of 19 > Suppose Kara has isolated a peptide and must determine the amino acid sequence. After one cycle of Edman degradation on a sample of the peptide, she produces a phenylthiohydantoin (PTH) derivative, OH Treatment with cyanogen bromide on another sample of her peptide gives her the fragments • Lys-Pro-Ala-Met, • Pro-Asp. • Leu-Ile-Cys-Trp-Met, and • Thr-Arg.Met. She also digested a sample of her peptide with the enzyme chymotrpsin. One of the fragments produced after treatment with...
The one-letter sequence is: WATER a) Draw the peptide (R-groups trans), indicating charges, in predominant form found at pH = 0. b) What is the isoelectric point? c) What is the average charge on the population of peptide macromolecules at pH = 2.2? d) What is the average charge on the population of peptide macromolecules at pH = 12.5? TABLE 4.1 Amino Acid Alanine Arginine Asparagine Aspartic acid Cysteine....« Glutamic acid Glutamine Glycine Histidine Isoleucine Leucine Lysine … Methionine Phenylalanine...
QUESTION 64 Which is the C-terminal amino acid in the following peptide? hranoud CHỊCH,, Hà A. Glycine B. Phenylalanine C. Leucine OD. Valine
options There are peptide bonds in the molecule below. The N-terminal amino acid is Choose... The C-terminal amino acid is Choose... V NH3 NHE ОН 90- NH Choose... glycine alanine valine leucine isoleucine serine threonine cysteine methonine aspartate glutamate asparagine glutamine lysine arginine phenylalanine tyrosine proline histidine
There are peptide bonds in the molecule below. The N-terminal amino acid is Choose... The C-terminal amino acid is Choose... V NH₃ NH₃ Air ОН 90- NH Choose... glycine alanine valine leucine isoleucine serine threonine cysteine methonine aspartate glutamate asparagine glutamine lysine arginine phenylalanine tyrosine proline histidine
anyone can help me with it? A protein biochemist attempted to determine the amino acid sequence of a decapeptide. Use the results from the trypsin, chymotrypsin, and cyanogen bromide treatments to suggest the amino acid sequence of this decapeptide. Trypsin digestion gave two fragments with multiple residues (not in order): • T1: Ala, Arg, Phe, Gly, Thr, Trp, Tyr • T2: Lys, Met, Val Chymotrypsin digestion gave four fragments with multiple residues (not in order): • CT1: Ala, Phe •...
IFor each molecule of FADH_2 that donates electrons to the electron transport chain, ATPs will be produced 1.5 2 2.5 3 10 For questions 9-18, match the description on the left with the correct amino acid on the right. Answers will only be used once. the only achiral amino acid methionine the side chain of this amino acid has an alcohol group glycine an amino acid with an aromatic group glutamate an ammo acid with an acidic side chain tryptophan...
Question 5 Bio206 Homework 6 Amino Acids and Proteins Organic Chemistry II Due May 6, 2017 1. Which amino acid is least likely to be found in a natural protein? CH20H NHz CHs IV 2. A pentapeptide has the molecular formula: Asp, Glu, His, Phe, Val. Partial hydrolysis of the pentapeptide gives: Val Asp, Glu His, Phe Val, and Asp Glu. What is the amino acid sequence of the pentapeptide? 3. When the pentapeptide below is heated first with 2,4-dinitrofluorobenzene...