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Receptors cell surface

receptors, cell surface

cell surface proteins that bind signalling molecules external to the cell with high affinity and convert this extracellular event into one or more intracellular signals that alter the behaviour of the target cell. Cell surface receptors, unlike enzymes, do not chemically alter their ligands.


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Re: Re:

... radiation, ionizing etc. It mutate the DNA in cell. If only a single is mutated, it can be replicated ... kill the cancer cells or they can block vital receptors on the cancer cell's surface; or they could even be used to deliver cell-killing ...

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by Ahsmeah
Tue Feb 05, 2013 10:10 pm
 
Forum: Physiology
Topic: Cancer = Mutation: Stopping Mutation Would Cure Cancer?
Replies: 6
Views: 1017

Re: Re:

... radiation, ionizing etc. It mutate the DNA in cell. If only a single is mutated, it can be replicated ... kill the cancer cells or they can block vital receptors on the cancer cell's surface; or they could even be used to deliver cell-killing ...

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by biohazard
Tue Feb 05, 2013 1:23 pm
 
Forum: Physiology
Topic: Cancer = Mutation: Stopping Mutation Would Cure Cancer?
Replies: 6
Views: 1017

Re: Protein expression but no mRNA

... weight in serum is the same as seen in cell lysates. Maybe, the protein is simply bound to cell surface receptors?!? But when I do fractionation studies, the protein is ...

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by evamik
Thu Jun 07, 2012 8:02 am
 
Forum: Molecular Biology
Topic: Protein expression but no mRNA
Replies: 10
Views: 2967

Re: Theories - Origin of Life

Here are some of the stages whereby a cell can take in foreign DNA. 1 There has to be DNA ... the cell and free DNA, specific sequences and receptors are involved.. 4 How is the entry of DNA ... that allows nucleic acids to bind to the cell surface and be taken up by the host. Studies have ...

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by scottie
Fri Jan 27, 2012 12:48 pm
 
Forum: Evolution
Topic: Theories - Origin of Life
Replies: 548
Views: 534362

Molecular Cell Biology

... (HRP) (70 marks) Cells take up extracellular molecules by receptor-mediated endocytosis ... (10 marks) (b) Calculate the number of EGF receptors on the surface of each A431 cell. (20 marks) (c) Calculate how ...

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by Freckles
Wed Dec 07, 2011 11:24 pm
 
Forum: Cell Biology
Topic: Molecular Cell Biology
Replies: 5
Views: 2339
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