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what are the different functions of the proteins that are embedded in the lipid bilayer?

tonygee28

wrote...

Posts: 5

Rep:

11 years ago

what are the different functions of the proteins that are embedded in the lipid bilayer?

the channel protein?
the receptor protein?
the marker protein?

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BuggerFormic

wrote...

#1

11 years ago

channel protein--> transports molecules in & out of cell
receptor protein---> binds signal molecules (such as hormones) and other molecules and virus envelop
marker protein.....> tracks molecule

mikelowry

wrote...

#2

11 years ago

Channel protein: Selectively allows certain molecules/ions to pass through
eg: Aquaporin (allows transport of water molecules)

Receptor protein: Selectively recognizes and binds cetain ligands and in turn initiates a cascade of cell signalling events or engulfment of ligand into cell upon recognition
eg: Insulin receptor, G-protein coupled receptor

Marker protein: It is specific for certain cells and can be used to distinguish from other cell types
eg: cancer specific cell markers - VEGF, p53

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