Biochemistry
9th Edition
ISBN: 9781305961135
Author: Mary K. Campbell, Shawn O. Farrell, Owen M. McDougal
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 5, Problem 27RE
REFLECT AND APPLY An amino acid mixture consisting of lysine, leucine, and glutamic acid is to be separated by ion-exchange chromatography, using a cation-exchange resin at pH 3.5, with the eluting buffer at the same pH. Which of these amino acids will be eluted from the column first? Will any other treatment be needed to elute one of these amino acids from the column?
Expert Solution & Answer
Trending nowThis is a popular solution!
Chapter 5 Solutions
Biochemistry
Ch. 5 - RECALL What types of homogenization techniques are...Ch. 5 - RECALL When would you choose to use a...Ch. 5 - RECALL What is meant by salting out? How does it...Ch. 5 - RECALL What differences between proteins are...Ch. 5 - RECALL How could you isolate mitochondria from...Ch. 5 - RECALL Can you separate mitochondria from...Ch. 5 - RECALL Give an example of a scenario in which you...Ch. 5 - Prob. 8RECh. 5 - REFLECT AND APPLY You are purifying a protein for...Ch. 5 - Prob. 10RE
Ch. 5 - RECALL What is the basis for the separation of...Ch. 5 - RECALL What is the order of elution of proteins on...Ch. 5 - RECALL What are two ways that a compound can be...Ch. 5 - Prob. 14RECh. 5 - RECALL Why do most people elute bound proteins...Ch. 5 - RECALL What are two types of compounds that make...Ch. 5 - RECALL Draw an example of a compound that would...Ch. 5 - RECALL How can gel-filtration chromatography be...Ch. 5 - REFLECT AND APPLY Sephadex G-75 has an exclusion...Ch. 5 - Prob. 20RECh. 5 - RECALL What is the main difference between reverse...Ch. 5 - RECALL How does HPLC differ from ion-exchange...Ch. 5 - REFLECT AND APPLY Design an experiment to purify...Ch. 5 - REFLECT AND APPLY Referring to Question 23, how...Ch. 5 - Prob. 25RECh. 5 - REFLECT AND APPLY You wish to separate and purify...Ch. 5 - REFLECT AND APPLY An amino acid mixture consisting...Ch. 5 - REFLECT AND APPLY An amino acid mixture consisting...Ch. 5 - REFLECT AND APPLY In reverse-phase HPLC, the...Ch. 5 - REFLECT AND APPLY Gel-filtration chromatography is...Ch. 5 - RECALL What physical parameters of a protein...Ch. 5 - RECALL What types of compounds make up the gels...Ch. 5 - RECALL Of the two principal polymers used in...Ch. 5 - RECALL What types of macromolecules are usually...Ch. 5 - RECALL If you had a mixture of proteins with...Ch. 5 - RECALL What does SDSPAGE stand for? What is the...Ch. 5 - RECALL How does the addition of sodium...Ch. 5 - RECALL Why is the order of separation based on...Ch. 5 - RECALL The accompanying figure is from an...Ch. 5 - Prob. 40RECh. 5 - Prob. 41RECh. 5 - Prob. 42RECh. 5 - Prob. 43RECh. 5 - REFLECT AND APPLY What would happen during an...Ch. 5 - REFLECT AND APPLY A sample of an unknown peptide...Ch. 5 - REFLECT AND APPLY A sample of a peptide of unknown...Ch. 5 - REFLECT AND APPLY You are in the process of...Ch. 5 - REFLECT AND APPLY You are in the process of...Ch. 5 - Prob. 49RECh. 5 - Prob. 50RECh. 5 - Prob. 51RECh. 5 - Prob. 52RECh. 5 - Prob. 53RECh. 5 - Prob. 54RECh. 5 - RECALL What is the basis for the technique called...Ch. 5 - Prob. 56RECh. 5 - Prob. 57RECh. 5 - RECALL What are the main procedures involved in a...Ch. 5 - RECALL Where did western blot get its name?Ch. 5 - Prob. 60RECh. 5 - Prob. 61RECh. 5 - Prob. 62RECh. 5 - Prob. 63RECh. 5 - Prob. 64RECh. 5 - Prob. 65RE
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biochemistry and related others by exploring similar questions and additional content below.Similar questions
- REFLECT AND APPLY The enzyme D-amino acid oxidase has a very high turnover number because the D-amino acids are potentially toxic. The KM for the enzyme is in the range of 1 to 2 mM for the aromatic amino acids and in the range of 15 to 20 mM for such amino acids as serine, alanine, and the acidic amino acids. Which of these amino acids are the preferred substrates for the enzyme?arrow_forwardREFLECT AND APPLY In reverse-phase HPLC, the stationary phase is nonpolar and the mobile phase is a polar solvent at neutral pH. Which of the three amino acids in Question 28 will move fastest on a reverse-phase HPLC column? Which one will move the slowest?arrow_forwardREFLECT AND APPLY An amino acid mixture consisting of phenylalanine, glycine, and glutamic acid is to be separated by HPLC. The stationary phase is aqueous and the mobile phase is a solvent less polar than water. Which of these amino acids will move the fastest? Which one will move the slowest?arrow_forward
- REFLECT AND APPLY You are purifying a protein for the first time. You have solubilized it with homogenization in a blender followed by differential centrifugation. You wish to try ammonium sulfate precipitation as the next step. Knowing nothing beforehand about the amount of ammonium sulfate to add, design an experiment to find the proper concentration (% saturation) of ammonium sulfate to use.arrow_forwardREFLECT AND APPLY Design an experiment to purify protein X on an anion-exchange column. Protein X has an isoelectric point of 7.0.arrow_forwardREFLECT AND APPLY Aspirin is an acid with a pKa of 3.5; its structure includes a carboxyl group. To be absorbed into the bloodstream, it must pass through the membrane lining the stomach and the small intestine. Electrically neutral molecules can pass through a membrane more easily than can charged molecules. Would you expect more aspirin to be absorbed in the stomach, where the pH of gastric juice is about 1, or in the small intestine, where the pH is about 6? Explain your answer.arrow_forward
- REFLECT AND APPLY Sulfanilamide and related sulfa drugs were widely used to treat diseases of bacterial origin before penicillin and more advanced drugs were readily available. The inhibitory effect of sulfanilamide on bacterial growth can be reversed by p-aminobenzoate. Suggest a mode of action for sulfanilamide.arrow_forwardREFLECT AND APPLY When deoxyhemoglobin was first isolated in crystalline form, the researcher who did so noted that the crystals changed color from purple to red and also changed shape as he observed them under a microscope. What is happening on the molecular level? Hint: The crystals were mounted on a microscope slide with a loosely fitting cover slip.arrow_forwardREFLECT AND APPLY Draw Haworth projection formulas for dimers of glucose with the following types of glycosidic linkages: (a) A (14) linkage (both molecules of glucose in the form) (b) An ,(11) linkage (c) A (16) linkage (both molecules of glucose in the form)arrow_forward
- REFLECT AND APPLY You are in the process of determining the amino acid sequence of a protein and must reconcile contradictory results. In one trial, you determine a sequence with glycine as the N-terminal amino acid and asparagine as the C-terminal amino acid. In another trial, your results indicate phenylalanine as the N-terminal amino acid and alanine as the C-terminal amino acid. How do you reconcile this apparent contradiction?arrow_forwardREFLECT AND APPLY Referring to Question 23, how would you purify protein X using ion-exchange chromatography if it turns out the protein is only stable at a pH between 6 and 6.5?arrow_forwardREFLECT AND APPLY In Section 2-4, we said that at the equivalence point of a titration of acetic acid, essentially all the acid has been converted to acetate ion. Why do we not say that all the acetic acid has been converted to acetate ion?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
BiochemistryBiochemistryISBN:9781305961135Author:Mary K. Campbell, Shawn O. Farrell, Owen M. McDougalPublisher:Cengage Learning
Biochemistry
Biochemistry
ISBN:9781305961135
Author:Mary K. Campbell, Shawn O. Farrell, Owen M. McDougal
Publisher:Cengage Learning
Biomolecules - Protein - Amino acids; Author: Tutorials Point (India) Ltd.;https://www.youtube.com/watch?v=ySNVPDHJ0ek;License: Standard YouTube License, CC-BY