- 《英文msh詞典》Class Switchings
- [入口詞] Class Switchings
- [主題詞] Immunoglobulin Class Switching
- [英文釋義] Gene rearrangement of the B-lymphocyte which results in a substitution in the type of heavy-chain constant region that is expressed. This allows the effector response to change while the antigen binding specificity (variable region) remains the same. The majority of class switching occurs by a DNA recombination event but it also can take place at the level of RNA processing.
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