1. a. Name the amino acids given below. Using these amino acids, draw the peptide bond formation in a protein . How do you schematically represent them? Write down the sequence of the tetra peptide using the standard three letter abbreviations and one letter codes. H H C-N он CH, H но H CH, -- CH, но H. CH, но он CH, OH (а) (c) (d) b. What is the importance of the amino acid given below in the formation of three dimensional structures of proteins? H C c-N но CH2 SH

1. a. Name the amino acids given below. Using these amino acids, draw the peptide bond formation in a protein . How do you schematically represent them? Write down the sequence of the tetra peptide using the standard three letter abbreviations and one letter codes. H H C-N он CH, H но H CH, -- CH, но H. CH, но он CH, OH (а) (c) (d) b. What is the importance of the amino acid given below in the formation of three dimensional structures of proteins? H C c-N но CH2 SH

Organic Chemistry: A Guided Inquiry

2nd Edition

ISBN:9780618974122

Author:Andrei Straumanis

Publisher:Andrei Straumanis

Chapter27: Amines

Section: Chapter Questions

Problem 14E

See similar textbooks

Similar questions

Experimental observations show that thiocyanate (SCN- ), the conjugate base of thiocyanic acid (pKa = 1.1 at 25 °C), is quite soluble in neutral water at pH > 2. In the space provided below, explain this experimental observation. That is, why does SCN– readily dissolve in water when the pH > 2?
1 Based on the structural properties of 7EHE, how resistant (or sensitive) would your protein be to heat denaturation and why?
What is the amino terminal residue in this peptide? What is the carboxyl terminal residue in this peptide? The net charge of this peptide at pH 7.4 would be?
According to the paper, F486 is a phenylalanine residue (i.e., an amino acid that is part of a chain that forms a protein) on SARS-CoV-2. It has an important interaction with ACE2 (best seen in Fig. 1(C) and Fig. 2(A)). Looking at this phenylalanine and the green residues surrounding it, which statement best describes the interaction that could be occurring? a) It forms a hydrogen bond with Y83. b) It forms a dipole-dipole interaction with M82. c) It forms London dispersion forces with surrounding residues. d) It encounters repulsions from surrounding residues.
Draw the structure of the tetrapeptide Asp-Arg-Val-Tyr. Please show the appropriate stereochemistry of the natural amino acids in the resulting peptide. Please draw all ionizable groups in their neutral form.
Glutamic acid is a naturally occurring α-amino acid that contains acarboxy group in its R group side chain. (Glutamic acid isdrawn in its neutral form with no charged atoms, a form that does not actually exist at any pH.) a.) What form of glutamic acid exists at pH = 1?b.) If the pH is gradually increased, what form of glutamic acid exists afterone equivalent of base is added? After two equivalents? After threeequivalents?c.) Propose a structure of monosodium glutamate, the common flavorenhancer known as MSG.
This is a homework question... In nature, amino acids in proteins are typically found in the L-configuration. This is basedon it’s relationship to D- and L-glyceraldehyde. Shown below is the structure of the amino acidasparagine (Asn) at physiological pH. As written does histidine have an L(S)- or D(R)-configuration? Be sure to show how you derived your answer:
I don't get it at all. Can you help me about the Henderson-Hasselbalch relation, summarized in the table below, it is possible to predict the predominant form of these groups at a particular pH? Draw the line bond structure for the general form of an amino acid using "R" to represent the side chain. Draw the N- and C-terminus groups using the forms that are predominant at physiological pH (pH = 7.4. Include lone pairs in your drawing.
Which of the following is an acceptable name for the peptide sequence below?
Another strategy used to resolve amino acids involves converting the carboxy group to an ester and then using a chiral carboxylic acid to carry out an acid–base reaction at the free amino group. Using a racemic mixture of alanine enantiomers and (R)-mandelic acid as resolving agent, write out the steps showing how a resolution process would occur.
Please draw the asparagine and aspartic acid. Make sure to draw them at pH 7! On each amino acid, record the protons that can dissociate, their respective pKa's, and the overall net charge at pH 7.
An amino acid mixture of phenylalanine, glycine and glutamic acid is to be separated bypaper chromatography. The solvent is less polar than water. Which of these amino acids will have the highest Rf value and which the lowest? Explain. Treatment of a new protein with dansyl chloride reveals two (2) dansyl-labelled derivatives of amino acids, alanine and methionine. What can you deduce about the structure of the protein from these results? Name the amino acids that contribute atoms to both purine and pyrimidine rings.