Macmillan LearningThe graphs show a titration curve for the amino acid histidine. Label the fist curve with the major histidine species at eachposition. One histidine species will not be used.Label the second curve with the pKå values for the histidine functional groups and the isoelectric point (pI) of histidine.1412108HHpH6His[His] = [His]2His²-[His² +] = [His*]00.00.51.0Incorrect Answer1.5[OH-] (equivalents)HisºHis[His] = [His]2.02.53.0His² +Answer Bank

To properly label the histidine titration curve: 1. States of Histidine Protonation: His²⁺:…

Answered: Macmillan Learning The graphs show a…

Biochemistry

6th Edition

ISBN:9781305577206

Author:Reginald H. Garrett, Charles M. Grisham

Publisher:Reginald H. Garrett, Charles M. Grisham

Chapter26: Synthesis And Degradation Of Nucleotides

Section: Chapter Questions

Problem 22P

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Macmillan Learning The graphs show a titration curve for the amino acid histidine. Label the fist curve with the major histidine species at each position. One histidine species will not be used. Label the second curve with the pKå values for the histidine functional groups and the isoelectric point (pI) of histidine. 14 12 10 pH 6 8 4 His²+ 2 His+ 0 0.0 0.5 1.0 Incorrect Answer His²- [His²+] = [His*] 1.5 [OH-] (equivalents) Hisº His [His]=[His] 2.0 2.5 3.0 Answer Bank [His+] = [His]
Using Fig. as a guide, draw the complete structure of a nucleoside triphosphate before and after it becomes incorporated into a polynucleotide chain. Draw the structure that would result if the newly formed phosphodiester bond were hydrolyzed.
Given: Cryo-EM structure of PCoV_GX spike glycoprotein 1. What can you tell me about the identity of the protein? 2. What is the importance of this protein?
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Part C Using the values of pKas in the table below, calculate the pI for DTLH. Properties of some amino acids found in proteins Name Aspartic acid Abbreviations: 1- and 3- letter codes D, Asp Histidine H, His Leucine L, Leu Threonine T, Thr ΓΙ ΑΣΦ Submit pKa of a-COOH pKa of a-NH3+ pKa of lonizing Group Group Side Chain Express your answer to two significant figures. Request Answer 2.1 1.8 2.4 2.6 ? 9.8 9.2 9.6 10.4 3.9 6.0
Determining the amino acid sequence in a protein usually in- volves treating the protein with various reagents that break up the protein into smaller fragments that can be individually sequenced. Treating a particular 11-amino acid polypeptide with one reagent produced the fragments: Ala-Leu-Phe-Gly-Asn-Lys Trp-Glu-Cys Gly-Arg Treating the same polypeptide with a different reagent pro- duced the fragments: Glu-Cys Gly-Asn-Lys-Trp Gly-Arg-Ala-Leu-Phe What is the amino acid sequence of the polypeptide?
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DO NOT COPY OLDER ANSWERS! AND SHOW FULL WORK! I have a mixture of 4 proteins, whose sequences are shown below (note that each protein is a 100-repeat of the sequence shown). Protein A: (Gly-Ala-Lys-Val-Ile-Phe-Glu-Val-Asn-Gly) Protein B: (Ala-Ala-Lys-Arg-Ile-His-Glu-Ala-Asn-Lys) Protein C: (Glu-Val-His-Asp-Ala-Asp-Glu-Val-Asn-Asp) Protein D: (Ala-Lys-Arg-Phe-Trp-Phe-Gly-Ile-Ala-Gly) 1) Which protein/s are MOST LIKELY to precipitate out at a pH of 3.5? a) A b) B c) C d) D e) B & C f) A & D g) None of them h) Cannot be determined.
Estimate the net charge of the polypeptide chain at physiological pH 7.4. Ala-Arg-Asp pKa values of ionizable groups in amino acids: N-terminus- 9.0 Arg- 12.5 Asp- 3.9 C-terminus- 3.5
Thr-Lys-Pro-Ile-Val-Ala-Pro-Met-Glu-Tyr-Gly-Lys Write the sequence using one-letter abbreviations. sequence: TLPIVAPMGYGK Incorrect Estimate the net charge on the peptide at pH 7. charge at pH 7: +1 Estimate the net charge on the peptide at pH 12. charge at pH 12: 0 Incorrect
Upload a drawing of Gly-Met-Asn-Glu-His Label the alpha carbons Label the R groups as hydrophobic or hydrophilic Label the acidic and basic R-groups Label the peptide bonds Label the N terminus and the C terminus

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