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- Below are two cell signalling pathways that work together to regulate cell growth, proliferation and ultimately the size of organs in O.Extremus. In other closely related organisms, dysfunction of these pathways has been associated with tumor growth. mTOR pathway: 1. Growth factors bind and stimulate the receptors. crosstalk ippo thway 2. Receptors can activate the phosphatidylinositol 3 kinase (PI3K) – Akt signaling pathway. MTOR Pathway 3. The activated Akt, a serine threonine kinase, inhibits the TSC1-TSC2 complex, allowing Rheb to activate mTORC1. Mst РІЗК PTEN Lats AKT 4. In parallel, amino acids activate the mTORC1 pathway through a mechanism requiring the Rag- Ragulator complex. miR-29 YAP TSC2-TSC1 amino acids Rag-Ragulator Hippo pathway: 1. The binding of the ligand activates the receptors which activate Mst and Lats. Rheb cell division MTORC1 organ size 2. YAP activity is modulated by phosphorylation of Mst and Lats. YAP upregulates miR-29, which in turn downregulates PTEN, an inhibitor of PI(3)K and Akt. So, the two pathways crosstalk and cell growth Created in BioRender.com coordinate cell number and growth. c) Which protein possesses this enzymatic activity within that pathway?

- Below are two cell signalling pathways that work together to regulate cell growth, proliferation and ultimately the size of organs in O.Extremus. In other closely related organisms, dysfunction of these pathways has been associated with tumor growth. mTOR pathway: 1. Growth factors bind and stimulate the receptors. crosstalk ippo thway 2. Receptors can activate the phosphatidylinositol 3 kinase (PI3K) – Akt signaling pathway. MTOR Pathway 3. The activated Akt, a serine threonine kinase, inhibits the TSC1-TSC2 complex, allowing Rheb to activate mTORC1. Mst РІЗК PTEN Lats AKT 4. In parallel, amino acids activate the mTORC1 pathway through a mechanism requiring the Rag- Ragulator complex. miR-29 YAP TSC2-TSC1 amino acids Rag-Ragulator Hippo pathway: 1. The binding of the ligand activates the receptors which activate Mst and Lats. Rheb cell division MTORC1 organ size 2. YAP activity is modulated by phosphorylation of Mst and Lats. YAP upregulates miR-29, which in turn downregulates PTEN, an inhibitor of PI(3)K and Akt. So, the two pathways crosstalk and cell growth Created in BioRender.com coordinate cell number and growth. c) Which protein possesses this enzymatic activity within that pathway?

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Practice Question 8 - Below are two cell signalling pathways that work together to regulate cell growth, proliferation and ultimately the size of organs in O.Extremus. In other closely related organisms, dysfunction of these pathways has been associated with tumor growth. mTOR pathway: 1. Growth factors bind and stimulate the receptors. crosstalk Hippo Pathway 2. Receptors can activate the phosphatidylinositol 3 kinase (PI3K) – Akt signaling pathway. MTOR Pathway 3. The activated Akt, a serine threonine kinase, inhibits the TSC1-TSC2 complex, allowing Rheb to activate mTORC1. Mst PI3K PTEN Lats AKT 4. In parallel, amino acids activate the mTORC1 pathway through a mechanism requiring the Rag- Ragulator complex. (miR-29 YAP TSC2-TSC1 amino acids Rag-Ragulator Hippo pathway: 1. The binding of the ligand activates the receptors which activate Mst and Lats. Rheb cell division MTORC1 organ size 2. YAP activity is modulated by phosphorylation of Mst and Lats. YAP upregulates miR-29, which in turn downregulates PTEN, an inhibitor of PI(3)K and Akt. So, the two pathways crosstalk and cell growth Created in BioRender.com coordinate cell number and growth. c) Which protein possesses this enzymatic activity within that pathway?
Transcribed Image Text:Practice Question 8 - Below are two cell signalling pathways that work together to regulate cell growth, proliferation and ultimately the size of organs in O.Extremus. In other closely related organisms, dysfunction of these pathways has been associated with tumor growth. mTOR pathway: 1. Growth factors bind and stimulate the receptors. crosstalk Hippo Pathway 2. Receptors can activate the phosphatidylinositol 3 kinase (PI3K) – Akt signaling pathway. MTOR Pathway 3. The activated Akt, a serine threonine kinase, inhibits the TSC1-TSC2 complex, allowing Rheb to activate mTORC1. Mst PI3K PTEN Lats AKT 4. In parallel, amino acids activate the mTORC1 pathway through a mechanism requiring the Rag- Ragulator complex. (miR-29 YAP TSC2-TSC1 amino acids Rag-Ragulator Hippo pathway: 1. The binding of the ligand activates the receptors which activate Mst and Lats. Rheb cell division MTORC1 organ size 2. YAP activity is modulated by phosphorylation of Mst and Lats. YAP upregulates miR-29, which in turn downregulates PTEN, an inhibitor of PI(3)K and Akt. So, the two pathways crosstalk and cell growth Created in BioRender.com coordinate cell number and growth. c) Which protein possesses this enzymatic activity within that pathway?
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