What is the correct answer or is it already correct and why a.They are structural isomersb. They are diastereomersC.They are conformersd. They are enantiomersMirror9) The structure of phenylalanine is shown below. Once phenylalanine is incorporated into anamino acid chain, what type(s) of stabilizing interactions can it participate in? (select all thatapply)NH2OH8Hydrogen bonding via its side chainHydrogen bonding via its amide oxygen and nitrogenC. Salt bridgingd.Disulfide bindinge. Hydrophobic interactions10) Which of the following is not a step in transcriptiona.A replication fork is formedReplication forks aretranscription factor binds to the promoter region formed during DNA replicationnot during transcription

For question 9, phenylalanine is involved in hydrophobic interactions (via its aromatic ring) and…

Answered: a. They are structural isomers b. They…

Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

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Similar questions

Daclatasvir is formulated at the dihydrochloride salt. Which functional group in Daclatasvir will be protonated? (structure shown below) OA Carbonyl B. Ester OC Imidazole OD. Amide O E. Carbamate
Draw the bond-line dash-wedge structure and the Fischer projection of the following For each compound, draw the Newman Projection down the C2-C3 bond in the lowest energy conformation.
For the following peptide: group 3 C-NH, CH, H 4 group 1 HO. NH, group 4 N N-H group 2 At which pH will this structure remain stationary in an electric field? O A. when the pH is midway the pKas of groups 1 and 2 O B. when the pH is midway the pKas of groups 3 and 4 OC. when the pH is midway the pKas of groups 2 and 4 D. when the pH equals the pKa of group 1 OE. when the pH equals the pKa of group 4
Be as detailed as you can possibly be.
For each of the tripeptide: Tyrosylisoleucylleucine Methionylcysteinylisoleucine 1. Draw the correct structure of each tripeptide clearly identifying the Nand C- terminals 2. Label the amide bonds in your structures
Gentiobiose (D-Glc(ß1→6)D-Glc) is a disaccharide found in some plant glycosides. Draw the Haworth structure of gentiobiose based on its abbreviated name. Show all multiatom groups using the groups tool. Show stereochemistry using wedge (upward) or dash (downward) bonds.
A repeating unit of -D-glucopyranosyl-(-1—->6)-allopyranoside is called an oligosaccharide. A -1 —->4 glycosidic bond connects each disaccharide unit. Make a diagram of the molecular structure. There are ten monosaccharide residues in the oligosaccharide.a. Upon the action of beta glucosidase, draw the molecular structure of all possible resulting products. Briefly explain your answer b. Draw the L-isomer of the Fisher projection of one epimer of D-glucopyranoside. Explain why this is an epimer of the monosaccharide.c. Is this oligosaccharide a good substrate for glycolysis? Why or why not? Provide two reasons and discuss comprehensively.
Stereochemistry in biological molecules is often denoted by the D- and L- convention, instead of the R- and S- configurations determined by the Cahn-Ingold-Prelog methodology. Naturally occurring a-amino acids are typically in the L-configuration. The Fischer projection of L-alanine is shown. L-alanine H₂N- COOH H- CH3 Identify which structures are equivalent to the L-configuration. CH3 H -NH₂ COOH H COOH NH₂ -CH3
b) It's said that secondary structures form because of intra- and intermolecular hydrogen bonding involving the peptide bond. Describe what is going on to further stabilize secondary structure through these interactions.
Show steps please
Draw the Ala-Ser-Leu-Asp polypeptide (perspective formula) showing the fully extended backbone geometry (all angles +/- 180°). Include correct stereochemistry for L-amino acids. Label all bond rotations representing the angles at each residue
The peptide aspartyl-glutamyl-leucyl-threonyl-alanine shown in the sketch drawing window, has several ionizable groups. Adjust the charges to show the molecule as it would exist at pH 5.00. (I'm lost, I appreciate any help with explanation. ?)

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