Question

What family of proteins have J domains? How many Genes are there for this protein? What is the role of the J domain?

A) Ubiquitins, 3 Genes, Protein Folding
B) Chaperonins, 1 Gene, DNA Replication
C) HSP-40, Multiple Genes, Co-chaperone Interaction
D) HSP-90, 2 Genes, RNA Synthesis

Answer 1

Proteins with J domains belong to the HSP-40 family, encoded by multiple genes and are involved in co-chaperone interactions, assisting in protein folding.

Step-by-step explanation:

The family of proteins that have J domains is the HSP-40 (Heat Shock Protein 40) family. There are multiple genes encoding the vast number of HSP-40 proteins. The role of the J domain in these proteins is primarily concerned with co-chaperone interaction which is crucial in protein folding and assisting other chaperones like HSP-70 in their function.