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When protein membrane receptors are activated what usually happens?
Wiki User
∙ 10y ago
The receptor changes shape after binding with signal molecules (ligands).
Wiki User
∙ 10y ago
When protein membrane receptors are activated, they usually undergo a conformational change, which triggers a downstream signaling cascade. This cascade can involve the activation of intracellular proteins or the production of second messengers, leading to a variety of cellular responses such as gene transcription, enzyme activation, or changes in cellular metabolism. Ultimately, the activation of protein membrane receptors initiates a cellular response to the signaling molecule that bound to the receptor.
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Where is the receptor for cortisol found?
Receptors of protein hormones are present in plasma membrane but for steroid hormones no membrane receptors are needed as they can enter cell membrane , mobile receptors pic steroid hormones from cell membrane and carry them to nucleus .
Which of the substances below is a protein that can hold several other relay proteins as it binds to an activated membrane receptor?
scaffolding protein
What is the difference between protein hormones and steroid hormones and how they communicate with their target cells?
Steroid hormones arelipid-soluble and can dissolve easily into the cell membrane of the target cell to connect with receptors. Protein hormones are water-soluble and connect with receptors at the membrane because it can't diffuse through the membrane.
Why all receptors are protein in nature?
Protein is natural, proteins have receptors, hence all protein receptors are found in nature.
What happens if a molecule is too large to go through a membrane?
The molecule will be transported across the membrane by way of a transport protein or protein channel.
What are the Venus Flytrap receptors?
Venus Flytrap receptors are multimodal 7 transmembrane G-protein coupled receptors activated by extracellular calcium ions.
Membrane protein used to receive signals?
Receptors are proteins on the cell membrane that are used to receive signals
Where is the receptor for cortisol found?
Receptors of protein hormones are present in plasma membrane but for steroid hormones no membrane receptors are needed as they can enter cell membrane , mobile receptors pic steroid hormones from cell membrane and carry them to nucleus .
Which of the substances below is a protein that can hold several other relay proteins as it binds to an activated membrane receptor?
scaffolding protein
What is the difference between protein hormones and steroid hormones and how they communicate with their target cells?
Steroid hormones arelipid-soluble and can dissolve easily into the cell membrane of the target cell to connect with receptors. Protein hormones are water-soluble and connect with receptors at the membrane because it can't diffuse through the membrane.
What protein classes are not found as membrane proteins - identity markers or receptors or transport channels or enzymes or hormones?
Hormones are not found as membrane proteins.
Why all receptors are protein in nature?
Protein is natural, proteins have receptors, hence all protein receptors are found in nature.
What is one example of membrane phospholipids being important signalling molecules?
One example is the membrane phospholipid PIP2. When the receptor is activated, the PIP2 will by hydrolyzed by phospholipase C into DAG and Inositol triphosphate (IP3).DAG is insoluble so it stays in the membrane. It stimulates the production of protein kinase C which phosphorylates a protein to generate a second messenger.iP3 is soluble so it binds to the receptors. This triggers the release of mitochondrial calcium and it hence triggers a cellular response.
What happens if a molecule is too large to go through a membrane?
The molecule will be transported across the membrane by way of a transport protein or protein channel.
Is not a function of protein in a cell membrane?
Proteins are not primary components of cell membrane. The proteins on the cell membrane have special functions, like receptors and transporters.
How do hormones send messages?
The cells that react to a given hormone have special receptors for that hormone. When a hormone attaches to the receptor protein a mechanism for signaling is activated.
Are surface protein receptors protein?
Yes, surface receptors are made of protein units in cells.
