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What stage of viral reproduction take place when the spikes of the virus bind to a specific receptor molecule on the surface of a host cell?
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∙ 10y ago
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∙ 10y ago
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What is the job a a receptor molecule?
A receptor molecule is a molecule that receives information from outside the cell. They are embedded in either the plasma membrane or cytoplasm of a cell. A specific molecule on the surface or inside of a cell with a characteristic chemical and physical structure. Many neurotransmitters and hormones exert their effects by binding to receptors on cells.
What are adrenergic receptors?
Receptor fits in at least three different disciplines, including:"Sensory receptor, in physiology, any structure which, on receiving environmental stimuli, produces an informative nerve impulse"Receptor (biochemistry), in biochemistry, a protein molecule that receives and responds to a neurotransmitter, or other substance"Immune receptor, a special case of biochemical receptor that occurs on the surface of immunocytes and binds to antigens."Follow the link, below, to the Wikipedia Receptor disambiguation page.
What is the first step in epinephrine signaling?
the hormone binds to an epinephrine receptor on the cell surface
What would inhibit a receptor?
You can inhibit a receptor by either of 2 ways, one being specific one being not so specific. First of all if you have kinases they have a DNA binding domain as well as a catalytic region and ATP region. First you have to identify what you cell has for receptors this may be difficult because .01% of the cells mass are these receptors. Most identified by recomiant DNA, so you can find them by there DNA binding conserved sequence. Not all of them also have to be on the surface some maybe in the cytosol of the protien. So you can make a specific inhibitors for there receptor domain because these are specific. For cancer you want a dirty inhibitor to inhibit a lot of kinases.
What is the purpose of receptor proteins?
The intracellular proteins form the most important class of receptors called receptor proteins. Receptor proteins are located in the cytoplasm, cell membrane, or nuclear membrane. 1. Cytoplasmic receptor proteins include those that respond to steroid hormones. Ligand activated receptors may enter the cell nucleus where they modulate gene expression. 2. Receptors within cell membranes may be peripheral or trans-membrane proteins. Many receptors for hormones and neurotransmission are trans-membrane proteins. - a. Metabotropic receptors are coupled to G-proteins, acting through various secondary pathways involving ion channels, enzymes such as adenylyl (adenylate) cyclases, and phospholipases, or PDZ domains. - b. Ionotropic receptors are ligand-activated ion channels that permit entry of ions when the central pore is open. A receptor protein is protein molecule that found embedded in the plasma membrane surface of a cell. It receives chemical signals from outside the cell.
What is the job a a receptor molecule?
A receptor molecule is a molecule that receives information from outside the cell. They are embedded in either the plasma membrane or cytoplasm of a cell. A specific molecule on the surface or inside of a cell with a characteristic chemical and physical structure. Many neurotransmitters and hormones exert their effects by binding to receptors on cells.
What are adrenergic receptors?
Receptor fits in at least three different disciplines, including:"Sensory receptor, in physiology, any structure which, on receiving environmental stimuli, produces an informative nerve impulse"Receptor (biochemistry), in biochemistry, a protein molecule that receives and responds to a neurotransmitter, or other substance"Immune receptor, a special case of biochemical receptor that occurs on the surface of immunocytes and binds to antigens."Follow the link, below, to the Wikipedia Receptor disambiguation page.
Is CD4 an adhesion molecule?
The glycoprotein CD4 is a co-receptor. A co-receptor is "a cell surface receptor, which, when bound to its respective ligand, modulates antigen receptor binding or affects cellular activation after antigen-receptor interactions." (MediLexicon)
Define receptor of body?
A receptor is located on a cell membrane. Any neuronic transmission, hormone, etc. that cannot get inside of the cell's membrane will sit on the receptor in order to pass its message along to the cell. When the molecule sits on the receptor, it causes a series of reactions to occur inside of the cell. From the series of reactions that occur inside of the cell, the message is passed along, and the cell will perform as indicated by the molecule on the cell receptor.
Do viruses require specific receptors to infect cells?
Yes, all viruses need to bind to specific receptor molecules on the surface of target cells to initiate infection. Virus-receptor binding is highly specific, and this specificity determines both the species and the cell type that can be infected by a given virus.In some well-studied cases, the virus-binding region on the receptor has been found to be unrelated to the receptor's normal cellular function.
How do hormone and target cell recognize one another?
Hormones are specific molecules released by endocrine glands into the bloodstream. Each hormone binds to a specific receptor protein on the surface of the target cell. The receptor protein acts like a lock and key, ensuring that only the specific hormone can bind and trigger a cellular response in the target cell.
How do sensory receptors work?
A receptor is generally a recognition molecule situated on the surface of a cell. A receptor is a molecule that is sensitive to a particular signal and is also able to transmit information to the nucleus in order to control gene regulation. In order for a receptor to function, it must first be activated. The binding of a ligand to the receptor places the receptor in the activated state. Once the receptor is activated, it is now able to transmit signal to the interior of the cell.
Where do receptor molecules end up after receptor-mediated endocytosis?
Its NOT 'on the inside surface of the cell membrane' Probably ' on the inside surface of the vesicle'
What is an adrenergic receptor?
An adrenergic receptor is any of several sites in the surface membranes of cells innervated by adrenergic neurons.
Proteins each of which has a three dimensional shape complementary to that of a specific signal molecule?
You are likely referring to receptor proteins. Receptor proteins are used extensively in the endocrine, nervous and immune systems to carry out signal transduction and communication between cells. For example, an endocrine receptor may be the insulin receptor, which dimerizes upon signal molecule (insulin) binding and induces a series of changes in the cell leading to increased glucose uptake, increased glycolysis and decreased gluconeogenesis. A nervous system receptor may be a neurotransmitter receptor located at synapses that induces an action potential in the downstream neuron if it binds to a neurotransmitter released by the upstream neuron. The immune system makes extensive use of receptors and these receptors may be cell-surface bound or even soluble (e.g. antibodies). They are involved either in recognizing foreign molecules, transmission of activation signals for leukocytes, or administration of death (apoptosis) signals to other kinds of cells.
Where does bpg join to hemoglobin?
receptor proteins on the surface of hemoglobin
A protein on the surface of HIV can attach to what proteins on the surface of healthy human cells?
Receptor molecules
