Describe the roles of P-loop NTPase domains in molecular motor proteins

Q: Discuss the role of GTP in the functioning of translationfactors.

A: Introduction GTP is defined as an energy-rich kind of nucleotide that is analogous to a molecule of…

Q: Receptor tyrosine kinases (RTKS) .. O a) often mediate pathways involving cell growth and…

A: RTKs are the membrane-bound receptors present in the cells. The role of RTK is phosphorylating the…

Q: The Structure of the acetylcholine receptor is shown below: A. Knowing the amino acid sequence of…

A: All amino acids are of different property based on their property they present on the cytoplasmic…

Q: Binding of PGI2 to its protein binding receptor leads to

A: Prostacyclin (PGI2) is basically generated in the mammalian vasculature with increased levels in the…

Q: There is an unusually high concentration of phosphatidylcholine on the lumenal side of the ER. What…

A: Phosphatidylcholine is a type of phospholipid and forms a major component of biological membranes.…

Q: What is the function of the catabolite activator protein?

A: Catabolite activator protein is a trans-acting transcriptional activator that exists as a homodimer…

Q: Draw the general structural features of a G-protein coupled receptor (GPCR)

A: G-protein coupled receptor (GPCR) are one of the most largest and diverse group of receptors found…

Q: After death, muscles become very stiff, a condition known as rigor mortis.  Explain the molecular…

A: Anatomy and physiology are the branches of biology, anatomy deals with the study of the structure of…

Q: Briefly describe an in vitro experiment that differentiate between the Arp2/3 complex’ ability to…

A: Dear student as per multiple questions i can solve only first one due to the policy of Bartleby.…

Q: Who convert ATP hydrolysis to mechanical workby amplifying a small conformational change in the…

A: Introduction: During muscle contraction, myosin, the motor protein converts the chemical energy of…

Q: Activation of phosphatidylinositol-3-kinase (PI3K) stimulate protein-protein interactions.   True…

A: PI3K or phosphatidylinositol-3Kinase is a protein, which involves the family of an enzyme that…

Q: Even though the actual concentration inside a cell is above critical concentration, 50% of action is…

A: Actin participates in many important cellular processes, like muscle contraction, cell motility,…

Q: Describe the similarities and differences in the structures of GPCRs specific for various ligands…

A: A very large group of proteins that detect the substances outside the cell and generate various…

Q: Predict the membrane orientation of a protein that is synthesized with an N-terminal cleaved signal…

A: A transmembrane protein's orientation in the membrane is often distinct. The membrane-spanning…

Q: The production of arginine is terminated by the presence of excess arginine. State which phenomenon…

A: Every biological system needs a check otherwise excess of anything produced in the body can lead to…

Q: Ras proteins are activated when they a. bind GTP. b. release GTP. c. bind GDP. d. undergo…

A: Cells pass through cell cycle under the influence of external or internal signals. External signals…

Q: A positive regulator (aka modulator) for an allosteric protein will shift the activity curve of the…

A: Note: According to the guidelines only one question is answered please ask another question…

Q: Explain the factors of trans-acting?

A: Gene expression depends upon various factors at molecular levels. There are various regulatory…

Q: Define actin cross-linking proteins.

A: Answer: Introduction: Crosslinking means a mechanism of chemically linking two or more molecules…

Q: Describe the function and significance of ubiquitin and the proteasome in the regulation of gene…

A: Ubiquitin is a protein that marks the proteins which have completed their lifespan and then…

Q: Illustrate the Pathways leading from increased cytosolic Ca21 tocross-bridge cycling in smooth and…

A: Muscles are a major part of the skeletal system that facilitates the movement of the body parts.…

Q: riefly Describe What are the differences between selective and non-selective beta blocker? Describe…

A: The extent to which a particular medication can act on a certain site compared to other sites of the…

Q: Briefly describe what a G-protein is (explain by using the words GTPase, GTP and GDT)

A: Proteins are essential structural components that play a crucial role in cell signaling and nutrient…

Q: The alpha subunit of the heterotrimeric G-protein complex becomes activated upon activation of a…

A: Introduction: G Protein-coupled receptor (GPCR) also known as serpentine receptors or seven-pass…

Q: catalyzes addition of phosphate groups during signal transduction. O kinase O phosphorylators O…

A: During signal transduction various enzymes regulate the pathway. Protein kinases are the enzymes…

Q: List the factors of trans-acting?

A: Genes are very much crucial in regulating the health of the body and behavior of an individual. Gene…

Q: Briefly describe the following properties of the Rab and Arf GTPases: a) Size, structure and…

A: Hi, thank you for posting the question on Bartleby. As per the guidelines, we can answer only one…

Q: Explain how can cAMP’s activation of a single molecule, cAMPdependent protein kinase, be common to…

A: Receptors are proteins which bind with ligand molecules and trigger a signaling pathway. Ligands are…

Q: Cite a metabolic pathway where active protein kinase is needed and explain its mechanism of action.…

A: Below is the pathway for activation of Glycogen Phosphorylase which is required for maintaining the…

Q: Describe/explain the role of 1-stearoyl-2-linolenyl-phosphatidylcholine in animal cells/organs

A: Phosphatidylcholine is a class of phospholipids (Phospholipids are molecules which has hydrophilic…

Q: Does adenylate cyclase become more active when the inhibitory (Gia) protein is mutated and increases…

A: The GPCR pathway involves activation of cell surface receptor that is a 7 pass transmembrane…

Q: Many enzymes can hydrolyze GTP between the β and γ phosphates. The GTP analog β,γ-imidoguanosine…

A: Hormones such as epinephrine and norepinephrine secreted by the adrenal gland and to the…

Q: How can cAMP’s activation of a single molecule?

A: Introduction  cAMP (Cyclic Adenosine Monophosphate) is a secondary messenger which gets produced in…

Q: Describe the function of the Bicoid protein. Explain how its ability to exert its effects in a…

A: The proteins are the biomolecules found in all organisms.

Q: Describe how you would experimentally demonstrate that a specific G beta protein subunit is required…

A: Cells communicate with each other via released proteins unique to each kind. Signal transduction…

Q: List three examples of steroid transport proteins.

A: Introduction: Steroid hormones are lipid-soluble. Therefore they are bound to certain proteins for…

Q: About

A: Protein synthesis is important for performing various functions in the body. Synthesis of protein…

Q: The activation of receptor tyrosine kinases is characterized by(A) dimerization and…

A: Tyrosine kinases receptors (RTKs) are the cell surface receptors which can identify polypeptide…

Q: Pathway analysis: Link the protein names to the correct statements by interrogating the depicted…

A: No process within life forms are more intricated than the interconnected signal transduction…

Q: Apoptosome activates what initiator caspase?

A: Programmed cell death is known as apoptosis. It occurs in multicellular organisms. Apoptosis results…

Q: 47. Match the protein or structural feature on the left with one appropriate description on the…

A: The process of transcription is the predominant phase in biochemical information transfer pathway…

Q: What is the purpose of A kinase–associated proteins (AKAPs)? Describe how AKAPs work in heart muscle…

A: The A-kinase associated proteins (AKAPs) are a group of structurally diverse proteins, which have…

Q: Patch clamping can be used to measure the conductance properties of individual ion channels.…

A: Patch clamping is the technique that is used to determine the flow of ions through the ion channels.

Q: Comparison of 1IR3 and 1IRK shows that the tyrosine kinase domainfrom dimer, and that the…

A: insulin receptors are the transmembrane receptors they are activated by the insulin they belong to…

Q: The activation of receptor tyrosine kinases is characterized by   a. dimerization and…

A: Tyrosine kinases are enzymes that involve in the phosphorylation of amino acid tyrosine. Kinases use…

Q: A quanta holds about 10,000 molecules of ACh.  How many quanta are exocytosed during a single…

A: Introduction Synaptic potential refers to the electric potential across the postsynaptic membrane…

Q: Give and explain the types and examples of kinase transferase enzyme

A: A kinase is an enzyme that catalyzes the transfer of phosphate groups from high energy,…

Cell Signaling

It allows cells to perform various cellular activities, coordinate, and interact with other cells. All cells of an organism receive signals from their environments and respond accordingly. Even the unicellular eukaryotes receive signals secreted by other cells and respond. In the case of yeast, mating takes place by signaling between the yeast cells. Communication by cell signaling in a multicellular organism has become a vast and important part of various fields of biology.