Question 20 of 25The figure below illustrates what reactions of amino acids?cooC=0CH₂CH₂=000+ NHⒸDecarboylationCystine formationEsterificationTransaminationPeptide bond formationTransmethylationNAD(P)H+HOxidative deaminationAmide formationNAD(P) H₂+H₂OCOOCH₂IمیںCH₂COOⒸATP ADP +P₁ H₂N-CHNHOCH₂CH₂NH₂20

The alpha carbon of amino acids are consist of amino group, carboxyl group and side chain group.…

Answered: The figure below illustrates what…

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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Question 4. If you were to synthesize a tetrapeptide consisting of all alanine residues, you would have how many bonds between carbon and nitrogen?
The substitution of a Glutamate residue for Valine residue is a conservative substitution. TrueFalse
Question 9. Which of thefollowing is not formed through adehydration synthesis reaction?A. polysaccharideB. polypeptideC. Nucleic acidD. phospholipidE. glycerol
QUESTION NO. 1Targeting a protein to be degraded within proteasomes usually requires ubiquitin. In the function of ubiquitin all of the following are true except: A. ATP is required for activation of ubiquicin. B. a peptide bond forms between the carboxyl terminal of ubiquitin and an ε-amino group of a lysine . C. linkage of a protein to ubiquitin does not always mark it for degradation. D. the N-terminal amino acid is one determinant of selection for degradation. E. ATP is required by the enzyme that transfers the ubiquitin to the protein to be degraded QUESTION NO. 2Much of procollagen formation occurs in the endoplasmic reticulum and Golgi apparatus which requires signal peptide. All of the following statements about targeting a protein for the ER are true except. A. signal peptide usually has a positively charged N-terminus and a stretch of hydrophobic amino acids. B. signal peptide emerging from a free ribosome binds signal recognition…
. A nervous polecat. Pyrrolysine (Pyl, O) and Selenocysteine (Sec, U) are two uncommon amino acids. Knowing that these amino acids exists, translate the following amino acid sequence into one – letter code: Thr – Trp – Ile – Thr – Cys – His – Tyr – Leu – Ile – Thr – Thr – Ile – Glu – Phe – Glu – Arg – Arg – Glu – Thr – Ala – Arg – Glu – Asn – Thr – Tyr – Pyl – Sec – Met – Ala – Leu – Phe – Pyl – Tyr.
When glucose undergoes base-catalyzed isomerization in the absence of the enzyme, mannose is oneof the products that is formed (Section 20.5). Why is mannose not formed in the enzyme-catalyzedreaction?
Modern medicine now uses insulin analogues (where one or more of the amino acid residues has been changed) in the treatment of diabetes. In one such analogue, glargine insulin, the changes have increased the isoelectric point of the enzyme from 5.4 to 6.7, thereby reducing its solubility at physiological pH. Explain how changes in the primary amino acid sequence can alter the pI and solubility of the analogue without altering its interaction with blood glucose.
why glutamate is the most soluble in water at pH7
The dynorphins are a group of opioid peptides that play an important role in changes in the brain associated with cocaine addiction. One of these peptides, dynorphin A, contains the following amino acid sequence: Tyr–Gly–Gly–Phe–Leu–Arg–Arg–Ile–Arg–Pro–Lys–Leu–Lys. Draw the amino acids and peptide fragments formed when dynorphin A is treated with each reagent or enzyme: (a) chymotrypsin; (b) trypsin; (c) carboxypeptidase; (d) C6H5N=C=S.
The figure below shows the titration curve for the amino acid aspartic acid. There are five key points in the titration designated with roman numerals. For each of the statements following the figure, identify the appropriate key point of the titration
Tyrosine is a nonessential amino acid in humans. Under what circumstance would it become an essential amino acid?

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The figure below illustrates what reactions of amino acids? coo &C=0 CH₂ CH₂ 0=( 00 + NHⓇ NAD(P)H+H NAD(P) + H₂O Coo I H₂N-C-H CH₂ I CH₂ 3=0 COOⒸ ATP ADP +P; H₂N-CH 1 NH ΝΗ, I CH₂ 1 CH₂ 0=( NH₂