
Concept explainers
(a)
To determine: The results expected if the inside-out vesicles are subjected to the GO/3H-BH4 procedure.
Introduction: Erythrocyte membranes can be used to prepare sealed vesicles. These vesicles are prepared such that their orientation is reverse. This means that the side of the erythrocyte membrane which faced the cytoplasm, face outwards in these vesicles.
(b)
To determine: The results expected if the inside-out vesicles are subjected to the LP/125I procedure.
Introduction: Erythrocyte membranes can be used to prepare sealed vesicles. These vesicles are prepared such that their orientation is reverse. This means that the side of the erythrocyte membrane which faced the cytoplasm, face outwards in these vesicles.
(c)
To determine: The conclusions that can be drawn if some of the proteins that become labeled by the LP/125I method of part (b) were among those that had been labeled when intact cells were treated such that they were incubated with LP in the presence of 125I and the membrane proteins were extracted and analyzed on SDS-polyacrylamide gels.
Introduction: Erythrocyte membranes can be used to prepare sealed vesicles. These vesicles are prepared such that their orientation is reverse. This means that the side of the erythrocyte membrane which faced the cytoplasm, face outwards in these vesicles.
(d)
To determine: A method by which a transmembrane protein can be labeled such that it has 3H on one side and 125I on the other side.
Introduction: Erythrocyte membranes can be used to prepare sealed vesicles. These vesicles are prepared such that their orientation is reversed. This means that the side of the erythrocyte membrane which faced the cytoplasm, face outwards in these vesicles.

Want to see the full answer?
Check out a sample textbook solution
Chapter 7 Solutions
Becker's World of the Cell (9th Edition)
- In one paragraph show how atoms and they're structure are related to the structure of dna and proteins. Talk about what atoms are. what they're made of, why chemical bonding is important to DNA?arrow_forwardWhat are the structure and properties of atoms and chemical bonds (especially how they relate to DNA and proteins).arrow_forwardThe Sentinel Cell: Nature’s Answer to Cancer?arrow_forward
- Molecular Biology Question You are working to characterize a novel protein in mice. Analysis shows that high levels of the primary transcript that codes for this protein are found in tissue from the brain, muscle, liver, and pancreas. However, an antibody that recognizes the C-terminal portion of the protein indicates that the protein is present in brain, muscle, and liver, but not in the pancreas. What is the most likely explanation for this result?arrow_forwardMolecular Biology Explain/discuss how “slow stop” and “quick/fast stop” mutants wereused to identify different protein involved in DNA replication in E. coli.arrow_forwardMolecular Biology Question A gene that codes for a protein was removed from a eukaryotic cell and inserted into a prokaryotic cell. Although the gene was successfully transcribed and translated, it produced a different protein than it produced in the eukaryotic cell. What is the most likely explanation?arrow_forward
- Molecular Biology LIST three characteristics of origins of replicationarrow_forwardMolecular Biology Question Please help. Thank you For E coli DNA polymerase III, give the structure and function of the b-clamp sub-complex. Describe how the structure of this sub-complex is important for it’s function.arrow_forwardMolecular Biology LIST three characteristics of DNA Polymerasesarrow_forward
- BiochemistryBiochemistryISBN:9781305577206Author:Reginald H. Garrett, Charles M. GrishamPublisher:Cengage LearningBiochemistryBiochemistryISBN:9781305961135Author:Mary K. Campbell, Shawn O. Farrell, Owen M. McDougalPublisher:Cengage LearningBiology: The Dynamic Science (MindTap Course List)BiologyISBN:9781305389892Author:Peter J. Russell, Paul E. Hertz, Beverly McMillanPublisher:Cengage Learning
- Biology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStaxHuman Heredity: Principles and Issues (MindTap Co...BiologyISBN:9781305251052Author:Michael CummingsPublisher:Cengage LearningAnatomy & PhysiologyBiologyISBN:9781938168130Author:Kelly A. Young, James A. Wise, Peter DeSaix, Dean H. Kruse, Brandon Poe, Eddie Johnson, Jody E. Johnson, Oksana Korol, J. Gordon Betts, Mark WomblePublisher:OpenStax College





