Why does DNA need RNA? DNA is a precious commodity and to prevent it from damage it should not involve in many process. On the other hand it contains the genetic code for production of protein â¦
In biology, scaffold proteins are crucial regulators of many key signaling pathways. Although scaffolds are not strictly defined in function, they are known to interact and/or bind with multiple members of a signaling pathway, tethering them into complexes.
An MHC protein serves as a recognizable scaffold thatpresents pieces (peptides) of a foreign protein (antigenic) to immune cells.An empty ï¬foreignï¬ MHC scaffold itself can act as an antigen when donor organs or cells areintroduced into a patientâ¢s body.