Neigeborn, Lenore (neigeborn at OCELOT.RUTGERS.EDU) wrote:
: Hi folks,
: This is in response to George's concern that his protein may not be
: functional when fused to the GAL4-DNA Binding Domain. He wants to do a
: complementation test with his fusion protein to confirm that his protein is
: still functional (and presumably retains the ability to associate with its
: normal partners). Right, George?
: My question is this: Have you tried the complementation test yet?
Yes, and it does not complement. Actually I have 2 genes fused to the
GAL4 DNA binding domain that I am getting ready to screen for interacting
proteins. Both are cytoplasmic. I have only tested one of them for
complementation and it did not complement. I still need to test the other
one. This protein is known to dimerize in the cytoplasm. I fused it to
both the activation and DNA binding vectors, and it did not interact with
itself in the 2-hybrid system. So I'm a little worried about the ability
of these proteins to associate with their normal partners when fused to
GAL4 and dragged into the nucleus. I think I will go ahead and screen the
library since I have the plasmids and library ready to go.