Protein structural motifs often have general functions in common.  Which one of the following motifs is known to be involved in protein dimer formation, but not in direct protein-DNA interactions?

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#Question id: 1679

#Section 2: General Biology

What is the molecular weight of MHC class II β chain?

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#Question id: 1680

#Section 2: General Biology

Where are the MHC class II region genes in the mouse located?

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#Question id: 1681

#Section 2: General Biology

What do MHC class III genes encode?

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#Question id: 1682

#Section 2: General Biology

Extensive allelic polymorphism is found in MHC:

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#Question id: 1683

#Section 2: General Biology

Expression of MHC genes is:

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#Question id: 1684

#Section 2: General Biology

What are the molecules mediating signal transduction following antigen binding to cell surface immunoglobulin on a B-cell called?