Homework Answers
Option b is correct. The function of an SH2 domin is that it binds to a phosphorylated tyrosine on a different protein.
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Proteins have different parts, or domains, that have different functions. What is the function of an...
DNA-binding proteins are proteins that are composed of DNA-binding domains and thus have a specific or...
DNA-binding proteins are proteins that are composed of DNA-binding domains and thus have a specific or general affinity for either single or double stranded DNA. Protein X is one such protein that binds to double stranded DNA. What residues are most likely to be located in the DNA binding site of protein X and why?
Place the following events in Receptor Tyrosine Kinase signaling in order from the point when the...
Place the following events in Receptor Tyrosine Kinase signaling in order from the point when the RTK binds it ligand. A.) An SH2 domain proteins is recruited to phosphotyrosine residues B.) cytoplasmic tails of the RTKs cross-phosphorylate C.) RAS-GEF catalyzes GTP exchange on RAS D.) Receptors dimerize in the plasma membrane
Which one of the following statements is false? a. Many growth factor receptors are tyrosine kinases....
Which one of the following statements is false? a. Many growth factor receptors are tyrosine kinases. b. SH2 is an example of a protein domain that has high affinity binding for phosphorylated EGFR. c. Raf initiates a serine/threonine kinase cascade. d. Raf is activated by the kinase activity of RAS. Which one of the following statements is true? a. Retroviruses are a major cause of human cancers. b. Proto-oncogenes are altered forms of normal genes. c. Oncogenic activation of receptor...
Classes 7-8 Cytoplasmic Growth Signaling Be able to describe Ras structure and function. What kind of...
Classes 7-8 Cytoplasmic Growth Signaling Be able to describe Ras structure and function. What kind of protein is it? How is it regulated (Fig. 5.30)? How many forms of Ras do humans express? Be able to describe how Ras interacts with multiple downstream partners. What mechanisms render ras oncogenic? Also, how does Ras become oncogenic in the absence of ras mutations? Be able to describe how Ras interacts with the growth factor receptor signaling machinery. How did fly genetics help...
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...
Which of the following statements are true about protein domains? I. Polypeptide chains longer than 200...
Which of the following statements are true about protein domains? I. Polypeptide chains longer than 200 amino acids in length have multiple domains. II. Domains are tertiary structural components of proteins. III. Different domains are encoded by different exons of a gene. IV. Each domain in a protein has a specific function. A. I, II, III, and IV B. I, II, and III C. II, III, and IV D. II and IV E. I and IV
A single transmembrane hormone receptor associates into a dimer upon binding to the hormone on the...
A single transmembrane hormone receptor associates into a dimer upon binding to the hormone on the exterior of the cell. The cytoplasmic domains of the receptor dimer have tyrosine kinase activity and each subunit of the dimer phosphorylates tyrosines in the other subunit. These phosphorylated tyrosines then serve as substrates for the binding of a membrane associated protein Xm. Upon the binding of Xm to the phosphorylated transmembrane dimer, the kinase activity of the dimer also phosphorylates the Xm protein...
three part question!!!! Lab Activity for RNA Processing: p53 Isoforms Isoforms, simply defined, are different proteins...
three part question!!!!
Lab Activity for RNA Processing: p53 Isoforms Isoforms, simply defined, are different proteins created from the same genomic sequence. These differences can be created by a variety of mechanisms, including alternative splicing, the usage of different promoters, and the usage of different start codons. The p53 gene (usually called Tp53) is located on the short arm of chromosome 17 in the human genome. It has some unique gene topography, including one non-coding exon and very long intron...
Last guy got it wrong - Thank you. 2. You discover a signal transduction pathway that...
Last guy got it wrong - Thank you.
2. You discover a signal transduction pathway that regulates actin polymerization. SigC is the ligand, which binds to and activates a receptor tyrosine kinase (RTK). Activation of the RTK leads to the activation of the Ras protein, which then activates the protein kinase PK1 that phosphorylates the RingA protein on S34. When SigC plasma membrane phosphorylated, RingA binds EXTRACELLULAR to the gene regulatory SPACE inactive Ras protein activated Ras protein protein, AP1....
The inverse sine, inverse cosine, and inverse tangent functions have the following domains and ranges. (Enter...
The inverse sine, inverse cosine, and inverse tangent functions have the following domains and ranges. (Enter your answers in interval notation.) (a) The function sin−1 has domain and range . (b) The function cos−1 has domain and range . (c) The function tan−1 has domain and range .
Classes 7-8 Cytoplasmic Growth Signaling Be able to describe Ras structure and function. What kind of protein is it? How is it regulated (Fig. 5.30)? How many forms of Ras do humans express? Be able to describe how Ras interacts with multiple downstream partners. What mechanisms render ras oncogenic? Also, how does Ras become oncogenic in the absence of ras mutations? Be able to describe how Ras interacts with the growth factor receptor signaling machinery. How did fly genetics help...
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...
three part question!!!!
Lab Activity for RNA Processing: p53 Isoforms Isoforms, simply defined, are different proteins created from the same genomic sequence. These differences can be created by a variety of mechanisms, including alternative splicing, the usage of different promoters, and the usage of different start codons. The p53 gene (usually called Tp53) is located on the short arm of chromosome 17 in the human genome. It has some unique gene topography, including one non-coding exon and very long intron...
Last guy got it wrong - Thank you.
2. You discover a signal transduction pathway that regulates actin polymerization. SigC is the ligand, which binds to and activates a receptor tyrosine kinase (RTK). Activation of the RTK leads to the activation of the Ras protein, which then activates the protein kinase PK1 that phosphorylates the RingA protein on S34. When SigC plasma membrane phosphorylated, RingA binds EXTRACELLULAR to the gene regulatory SPACE inactive Ras protein activated Ras protein protein, AP1....
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