The substitution of a Glutamate residue for Valine residue is a conservative substitution. True False
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The substitution of a Glutamate residue for Valine residue is a conservative substitution.
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False
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- Unbranched homopolymer of N-acetyl glucosamine is : 1.Cellulose 2.Chitin 3.Curcumin 4.Concanavalin APeptide YY (PYY) is a 36-amino acid peptide that is so named because it contains twobiochemically relevant tyrosine residues.Describe the function of PYY and state where it is synthesized.a protease that cleave peptide bonds adjacent to aspartate and glutamate would likely have an s1 pocket that contain positively charged amino acids true or false
- Similarly, hypoxanthine (HX) can be used to label purine residues. As in Problem 4, write reactions showing the conversion of hypoxanthine to dATP and dGTP.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 titrationDescribe the catabolism of a the amino acid serine. Start with serine and end with ATP. Give the details of every step.
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- Some of the following four amino acids : alanine, arginine, histidine, aspartic acid would provide a side chain for acid-base catalysis at physiological pH (assume pK of each amino acid is equal to pK value for the free amino acid in solution). Explain for each amino acid how and why each would or would not provide the side chain residue to support acid-base catalysis at physiological pH.Certain glutamine analogs irreversibly inactivate enzymes that bind glutamine. Identify the nucleotide biosynthetic intermediates that accumulate in the presence of those compounds.Propose a plausible enzyme mechanism for triose kinase, the enzyme that catalyzes the conversion of glyceraldehyde to glyceraldehyde-3-phosphate. You may use "B:" for a general base amino and "H-A" for a general acid amino acid if needed.