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Dictionary » R » Receptor site

Receptor site

Definition

noun, plural: receptor sites

A molecular site or the docking port on the surface of, or within, a cell, usually involving proteins that are capable of recognizing and binding with specific molecules.


Supplement

For example: CD4 receptor on the surface of certain cells is the receptor site that HIV binds with and uses to enter cells.


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Re: Muscle Contractions

... into the neuromuscular junction... Once the Ach binds to its nicotinic receptor, it opens ligand gated channels for Na+ diffusion into muscular ... change thus moving tropomyosin allowing the myosin binding site to become open. These binding sites form a cross bridge with actin with ...

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by Jpoley
Tue Mar 01, 2011 2:42 am
 
Forum: Human Biology
Topic: Muscle Contractions
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Views: 453

Competitive receptor-ligand Binding

... has posted a few statements in his lecture pertaining to what he calls 'receptorology' and I'm just trying to elaborate a bit on them in lieu of ... only conclusion I could think of is that there could be another binding site (one of lower affinity) which would increase the maximal response, any ...

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by someguy456345
Thu Feb 24, 2011 7:48 pm
 
Forum: Cell Biology
Topic: Competitive receptor-ligand Binding
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Views: 316

Re: Question about viruses (particularly hiv)

... particles are "dormant" except when they bind to their target receptor on the cell surface and inject their genome and possible enzymes ... attenuated virus may sometimes infect the cells around its injection site, but is unable to spread the infection. Or more often, it simply cannot ...

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by biohazard
Mon Nov 01, 2010 7:48 am
 
Forum: Microbiology
Topic: Question about viruses (particularly hiv)
Replies: 22
Views: 12341

membrane-bound enzyme?

... in the beginning is correct: a protein can serve as a membrane-bound receptor molecule. Ligand is the molecule that the protein (membrane-bound receptor) receives in it's ' binding site (or a binding domain)'. Ligands could be a protein molecule, but it can also ...

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by kolean
Mon Dec 28, 2009 6:49 pm
 
Forum: Molecular Biology
Topic: membrane-bound enzyme?
Replies: 9
Views: 3223

membrane-bound enzyme?

... plastoquinone in which it is inside the membrane). And last is "receptor". The enzyme can have its "active" site on the outside of the cell that acts like a receptor for a molecular substrate (usually ...

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by kolean
Sun Dec 27, 2009 10:03 pm
 
Forum: Molecular Biology
Topic: membrane-bound enzyme?
Replies: 9
Views: 3223
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