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What is Transport across nucleus is by all except? and explain in detail?
Ans. d. Rat proteinsSource: InternetImportin - Type of karyopherinTransporting protein molecules into nucleus by binding to specific recognition sequences, called nuclear localization sequences (NLS).2 subunits, importin a and importin bCaveolinsFamily of integral membrane proteins that are principal components of caveolae membranes.Involved in receptor-independent endocytosis.Acts as scaffolding proteins within caveolar membranes by compart-mentalizing and concentrating signaling molecules.Rat proteins:Recombinant rat IFN--is a bioactive protein intended for use in cell culture applications.