G-proteins are…
tyrosine kinases |
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serine kinases |
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guanylate cyclases |
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guanine twophosphates |
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a & c |
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b & d |
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all of the above |
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none of the above |
none of the above .
G - proteins are trimeric or monomeric protein not enzyme.
when the ligand bind to the G- protein coupled receptor it activate the G- protein which further activate the enzyme which phosphorylate the target protein.
G-proteins are… tyrosine kinases serine kinases guanylate cyclases guanine twophosphates a & c b & d...
G-proteins are… tyrosine kinases serine kinases guanylate cyclases guanine twophosphates a & c b & d all of the above none of the above
Which is true of Receptor Tyrosine kinases? Most RTK subunits are single-pass transmembrane proteins. They are seven-pass transmembrane proteins. They are coupled to ion channels in the membrane They contain lots of tyrosine residues in their transmembrane domains
helppp
Section: 12.3 GPCRS in Vision, Olfaction, and Gustation Section 12.4 21) Receptor tyrosine kinases: are dimers. e. f. do not regulate gene expression. g. engage in extensive cross talk with other signal transduction systems. h. bind insulin. Section: 12.4 Receptor Tyrosine Kinases Section 12.5 22) Protein kinase G: is activated by GMP. e. is a tyrosine kinase. is stimulated by sildenafil (Viagra). f. g. activates ion pumps in cardiac tiss h. Section: 12.5 Receptor Guanylyl Cyclases, CGMP, and Protein...
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...
Match the abbreviation with its full name. GPCR A. Mitogen-activated protein kinases RTK B. Non-receptor tyrosine kinase v NRTK C. G-protein coupling receptor MAPK D. Receptor tyrosine kinase
41-50
41. inactwate ơmbinding proteins by converting GTP into GDP -_-- b GTPase 42. What do all GPCR have in common? a. All Participate in mating rituals of single celled yeasts b. All are lipids c. All are carbohydrates d. All pass through the membrane seven times 43. Ras is active when it is bound to GDP b. Fase 44. Ras is activated when it is bound to C. GTP d. GDP 45. Cytoplasmic Ca+ concentration is high in an...
Help with these bio questions please.Thank you
1 Secretory protein leave the cell by b Exoctossthey remain in the cytoplasm c) pinocytosis d) receptor mediated 2 If proteins lack a c) Ras d) Signal-recognition particle b) Sorting signal 3 What purpose does the protein coat serve a) Capture molecules to remain in the cytosol b) Shapes the membrane into a phospholipid bilayer membrane c) Provides extra protection and support to the organelles d) none of these are correct cells response...
How many ionizable groups are found in a) serine ? b) arginine ? c) glutamate? d) tyrosine? please show the ionizable for each amino acid. groups
If serine and tyrosine both have hydroxyl groups, should they be in the same solubility category? A) No. The aromatic portion of tyrosine would cause a clathrate to form in water and lower the solubility despite the dipole interactions that can occur between water and the hydroxyl group.Therefore, tyrosine is best categorized with the other aromatic amino acids. B) Yes. The hydroxyl group creates dipole-dipole interactions withwater. The presence of oxygen in both R group defines them as polar and...
Which amino acid has a basic R group? A) tyrosine B) Isoleucine C) Glutamic Acid D) Histidine E) Serine