Homework Answers
20.T complex is responsible for insertion of protein into ER membrane . In mammals , translocon is made up of three polypeptides called the sec61 complex .
21. It's a multipass transmembrane protein with with odd number of transmembrane helix so it's C-terminal will face the cytoplasm and N- terminal will face the ER lumen . So domain B , D& F will face the cytoplasm .
22. Domain E will be glycosylated.
23. Glycosylated domain will face the cytoplasm .
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Consider a membrane protein destined for the plasma membrane. From a hydropathy...
Question 2 Not yet answered Marked out of 1,0 Flag question Question text Proteins destined for...
Question 2 Not yet answered Marked out of 1,0 Flag question Question text Proteins destined for the mitochondrial matrix must pass through the Select one: a. inner mitochondrial membrane b. intermembrane space c. outer mitochondrial membrane d. TOM complex e. All of these are correct. Question 3 Not yet answered Marked out of 1.0 Flag question Question text In nuclear transport: Select one: a. Nuclear pores allow proteins to freely move back and forth between the nucleus and cytoplasm. b....
1. (14pts) A. What are the functions of the signal recognition particle (SRP) and translocon in p...
PLEASE ANSWER ALL THE QUESTIONS IN EACH PART. THANK YOU!
1. (14pts) A. What are the functions of the signal recognition particle (SRP) and translocon in protein transport to the ER? SRP Translocon B. How does the translocon determine which orientation to insert membrane proteins? C. How do budding & fusion affect the orientation of integral membrane proteins during vesicle transport? D. Consider a ligand-gated ion channel at the plasma membrane that binds to ligands in the cytoplasm. From a...
MacBook Air Quliy What is the main function of chaperones 7 Select one: a. They help...
MacBook Air Quliy What is the main function of chaperones 7 Select one: a. They help fold RNA b. They help fold proteins c. They help form vesicles d. They help degrade molecules e. They help fold DNA Question 7 Not yet answered Marked out of 10 Flag question Question text Without a signal sequence, a protein will be: Select one: a. translocated into the ER. b. localized to the cytoplasm. C. secreted, d. Imported into the nucleus. e. imported...
Pls help answer questions 1-5!! Which of these hormones could be taken orally? (multiple answers allowed)...
Pls help answer questions 1-5!!
Which of these hormones could be taken orally? (multiple answers allowed) Question 4 Not yet answered Marked out of 1.00 Select one or more: a. Estrogen b. Insulin Flag question c. T3/T4 O d. Biogenic amines Question 5 Which of the following would require a carrier protein to be soluble in the blood? Not yet answered Marked out of 1.00 Flag question Select one or more: O a. proteins/peptides O b. biogenic amines O c....
You are investigating the membrane properties of a newly discoverd deep sea bacterium. You discover that...
You are investigating the membrane properties of a newly discoverd deep sea bacterium. You discover that it is composed of 71 % protein (with the remainder being made up of a variety of lipid molecules). Calculate the overage density of the membrane assuming that protein has an average density of 1.2 g/ml and lipid a density of 0.94 g/ml. Question 14 Not yet answered Marked out of 10.0 Give your answer to one decimal place. P Flag question Answer: Question...
Please answer all questions 2 After isolating the rough endoplasmic reticulum from the rest of the...
Please answer all questions
2 After isolating the rough endoplasmic reticulum from the rest of the cytoplasm, you purify the RNAS attached to it. Which of the following proteins do you expect the RNA from the rough endoplasmic reticulum to encode? (a) (c) soluble secreted proteins plasma membrane proteins ER membrane proteins all of the above (b) (d) -13 In which cellular location would you expect to find ribosomes translating MRNAS that encode ribosomal proteins? (a) (c) the nucleus in...
please answer all that you can 1. You have genetically engineered green fluorescent protein (GFP) containing...
please answer all that you can 1. You have genetically engineered green fluorescent protein (GFP) containing a KDEL sequence (GFP-KDEL). When GFP-KDEL is expressed in normal human fibroblasts and examined using fluorescence microscopy, the fluorescence appears diffuse across the cytoplasm. How would you explain this observations given that KDEL is supposed to be an ER-specific sorting sequence? A. This engineered GFP would not have a hydrophobic signal sequence to get it into the RER in the first place. B. The...
Please explain your answer. 15-31 Figure Q15-31 shows the organization of a protein that resides on...
Please explain your answer.
15-31 Figure Q15-31 shows the organization of a protein that resides on the ER membrane. The N- and C-termini of the protein are labeled. Boxes 1, 2, and 3 represent membrane-spanning sequences. Non-membrane-spanning regions of the protein are labeled “X," "Y," and "Z." signal peptidase cleavage site NWowowo - X Y Z Figure Q15-31 (a) Once this protein is fully translocated, where will region Y be? in the cytoplasm (b) in the ER lumen (c) inserted...
please answer both What is the main function of chaperones stion 1 yet wered ints out...
please answer both
What is the main function of chaperones stion 1 yet wered ints out of 1.0 Flag estion Select one: a. They help fold RNA. b. They help form vesicles, C. They help degrade molecules, O d . They help fold proteins. O e. They help fold DNA. Which type of coat forms on vesicles moving material from the ER to the Golgi? Question 2 Not yet answered Points out of 1.0 P Flag question Select one: O...
5. (9pts) You are studying an ER membrane protein, YFG1 (outlined in yellow), with three transmembrane...
5. (9pts) You are studying an ER membrane protein, YFG1 (outlined in yellow), with three transmembrane domains (rectangles A, B & C at the amino acid positions according to the following map, connected by soluble domains (wavy lines): N-term 10 10 Com Amino acid position (not to scale) 30 60 80 140 160 310 ABCI YFG1 alkaline phosphatase To determine how the protein is arranged in the ER membrane, you construct a series of shortened YFG1 proteins that are connected...
Question 2 Not yet answered Marked out of 1,0 Flag question Question text Proteins destined for the mitochondrial matrix must pass through the Select one: a. inner mitochondrial membrane b. intermembrane space c. outer mitochondrial membrane d. TOM complex e. All of these are correct. Question 3 Not yet answered Marked out of 1.0 Flag question Question text In nuclear transport: Select one: a. Nuclear pores allow proteins to freely move back and forth between the nucleus and cytoplasm. b....
PLEASE ANSWER ALL THE QUESTIONS IN EACH PART. THANK YOU!
1. (14pts) A. What are the functions of the signal recognition particle (SRP) and translocon in protein transport to the ER? SRP Translocon B. How does the translocon determine which orientation to insert membrane proteins? C. How do budding & fusion affect the orientation of integral membrane proteins during vesicle transport? D. Consider a ligand-gated ion channel at the plasma membrane that binds to ligands in the cytoplasm. From a...
MacBook Air Quliy What is the main function of chaperones 7 Select one: a. They help fold RNA b. They help fold proteins c. They help form vesicles d. They help degrade molecules e. They help fold DNA Question 7 Not yet answered Marked out of 10 Flag question Question text Without a signal sequence, a protein will be: Select one: a. translocated into the ER. b. localized to the cytoplasm. C. secreted, d. Imported into the nucleus. e. imported...
Pls help answer questions 1-5!!
Which of these hormones could be taken orally? (multiple answers allowed) Question 4 Not yet answered Marked out of 1.00 Select one or more: a. Estrogen b. Insulin Flag question c. T3/T4 O d. Biogenic amines Question 5 Which of the following would require a carrier protein to be soluble in the blood? Not yet answered Marked out of 1.00 Flag question Select one or more: O a. proteins/peptides O b. biogenic amines O c....
You are investigating the membrane properties of a newly discoverd deep sea bacterium. You discover that it is composed of 71 % protein (with the remainder being made up of a variety of lipid molecules). Calculate the overage density of the membrane assuming that protein has an average density of 1.2 g/ml and lipid a density of 0.94 g/ml. Question 14 Not yet answered Marked out of 10.0 Give your answer to one decimal place. P Flag question Answer: Question...
Please answer all questions
2 After isolating the rough endoplasmic reticulum from the rest of the cytoplasm, you purify the RNAS attached to it. Which of the following proteins do you expect the RNA from the rough endoplasmic reticulum to encode? (a) (c) soluble secreted proteins plasma membrane proteins ER membrane proteins all of the above (b) (d) -13 In which cellular location would you expect to find ribosomes translating MRNAS that encode ribosomal proteins? (a) (c) the nucleus in...
Please explain your answer.
15-31 Figure Q15-31 shows the organization of a protein that resides on the ER membrane. The N- and C-termini of the protein are labeled. Boxes 1, 2, and 3 represent membrane-spanning sequences. Non-membrane-spanning regions of the protein are labeled “X," "Y," and "Z." signal peptidase cleavage site NWowowo - X Y Z Figure Q15-31 (a) Once this protein is fully translocated, where will region Y be? in the cytoplasm (b) in the ER lumen (c) inserted...
please answer both
What is the main function of chaperones stion 1 yet wered ints out of 1.0 Flag estion Select one: a. They help fold RNA. b. They help form vesicles, C. They help degrade molecules, O d . They help fold proteins. O e. They help fold DNA. Which type of coat forms on vesicles moving material from the ER to the Golgi? Question 2 Not yet answered Points out of 1.0 P Flag question Select one: O...
5. (9pts) You are studying an ER membrane protein, YFG1 (outlined in yellow), with three transmembrane domains (rectangles A, B & C at the amino acid positions according to the following map, connected by soluble domains (wavy lines): N-term 10 10 Com Amino acid position (not to scale) 30 60 80 140 160 310 ABCI YFG1 alkaline phosphatase To determine how the protein is arranged in the ER membrane, you construct a series of shortened YFG1 proteins that are connected...
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