Tagged Questions

2
votes
1answer
15 views

Which polymerase is most suited for incorporating exotic Cy-labeled NTPs?

Well, obviously choosing a suitable polymerase for second strand ligation depends on a whole lot of experimental parameters. In my case the most crucial parameter is the efficient …
0
votes
1answer
25 views

in vitro GST pull down

hello all, I am doing GST pull down experiment, where my protein tagged with N-terminal GST. and its purified and desalted. when i am doing interaction using Cell lysate (Hela o …
1
vote
1answer
22 views

How long do I have to incubate my sample with trypsin?

Dear all, does anyone has experience of how long I have to incubate a protein sample with trypsin for a complete digestion? I incubated o.n. at 37°C. Is this generally enough time …
0
votes
2answers
135 views

Source for Phe Auxotrophic E. Coli BL21(DE3)?

Hello, I'm looking for a Phe auxotrophic strain of E Coli that can be used with plasmids with T7 promoter. Preferably BL21 (DE3). Can anybody direct me to a bank, lab or where to b …
2
votes
4answers
191 views

PCR primer dimer formation

Hi all. I seem to have a serious problem with primer dimer formation. I am not sure but I believe it is for this reason that my PCRs aren't working lately. Is there anything I can …
0
votes
3answers
100 views

Primer design for splice variants

I have been trying to design primers for the spice variants. How can I design exon specific primers to identify the spice variants? There is no information on the number of exons i …
6
votes
3answers
122 views

Protein/Structure Analysis

Hi everybody, I just asked myself what kinds of analysis is possible for a protein structure.I know that there are so many programms and software for almost any type of question a …
1
vote
3answers
393 views

How to design RT-qPCR primers to measure splice variant gene expression?

I want to know how to design RT-qPCR primers that are specific enough to measure the expression of one splice variant and not others? Any ideas? Thanks.
1
vote
3answers
303 views

Suggestions for lentiviral or retroviral transduction into primary B cells?

I would like to attempt lentiviral or retroviral transduction of my gene of interest into primary murine splenic B cells. I have used both viral systems successfully on B cell line …
2
votes
2answers
114 views

What’s a good C-terminal protein sequencing service?

Does anyone know of a C-terminal sequencing service for proteins? Preferably one where one can simply send a blot to by normal mail. Apparently, here in Spain, there is none. Gree …
1
vote
0answers
13 views

Inserting gene into a BAC without using lox or Frt — would EM7 selection work?

I have a question about the Em7 promoter. I am working on a BAC construct at the moment, which I would use for generating a transgenic line. I have already made the targeting vecto …