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Home Q & A Board Biology-Related Homework Help Biochemistry
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tonygee28 tonygee28
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10 years ago
the channel protein?
the receptor protein?
 the marker protein?
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wrote...
#1
10 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
wrote...
#2
10 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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