How to remove the aminoacids after the His-tag and before my protein?

We'd like to produce recombinant proteins using a vector with His-tag in N-terminus. Our gene is inserted after 10-15bp after the His-tag. At the final step of purification and cleavage, how can...

31 December 2015 3,811 9 View

When is an ethical clarification needed in research experiments?

I've submitted a research article that deals with new biomarkers, and is based on samples received from cancer patients. The patients didn't give the blood for this project, however they consented...

09 October 2014 7,150 14 View

Does anyone uses MathType?

I've beem asked to convert some equations from Word to MathType. Unfortunately, I've not the software. Is there anybody that can help? Are there any online tools for such convertions?

08 September 2014 7,028 1 View

Which is an appropriate vector for stable transfection of human cancer cell lines?

I'd like to perform a stable transfection to human cancer cell lines. I performed the transient with pCVMTNT vector, but I want a stable expression of a protein, which I study. The cell lines I'm...

08 September 2014 2,828 5 View

Does anybody know any cell line resistant to alkaloids of vinca and specially on vincristine?

I'd like to study human resistance to alkaloids of the vinca cell line.

07 August 2014 1,337 4 View

How can I increase the efficiency of Nick Translation for preparing a FISH probe?

After the Nick Translation protocol (abbottmolecular) of my PCR product (325bp product), the electrophoresis data are not good. There have been tested two different periods of time as well two...

05 June 2014 5,867 9 View

Can anyone help with protein expression in mammalian cells?

I'd like to design a complete protocol for expressing protein in mammalians by using plasmid expression vectors. However, I've never dealt with culture of competent cells, so I'm not familiar with...

02 March 2014 7,190 5 View

Can anyone help with probes for FISH?

I'd like to design a probe for FISH. The area is non-coding, but the sequence is known. The size of the probe should be 500-1500bp. Do I need to use DOP PCR with the desirable primer? Does anyone...

31 December 2013 632 6 View

Does anybody use an array image analysis software?

We would like to analyze the data from antibody array after scanning.

11 December 2013 9,086 1 View

Housekeeping gene for gene expression analysis?

08 September 2013 9,528 9 View

Can we classify HV and LV lines based on line length?

I have dataset which shows the length of power lines. I need to classify the lines based on the line length. Is there a rule to classify the High voltage (HV) and low voltage (LV) lines based on...

03 March 2021 4,116 4 View

No title

02 March 2021 3,060 3 View

Does Napabucasin soluble in dichloromethane and in ethanol?

I need to prepare a solution of Napabucasin (inhibitor of cancer cell stemness) in dichloromethane. The drug is expensive, so maybe somebody already tried to do it. If it is soluble, what is the...

02 March 2021 9,945 3 View

Issues with Permeabilization during Flow Cytometry?

Hello Everyone. Currently I am working to characterize macrophages in the myocardium after ischemia-reperfusion injury in rats. Due to the low total cell number isolated from rat hearts I can...

01 March 2021 3,867 3 View

Could you please recommend some good journal that accept very long revie papers (approximately 6000+ words) in neurosurgery, cancer biology ?

Could you please recommend some good journal that accept very long revie papers (approximately 6000+ words) in neurosurgery, cancer biology ?

01 March 2021 8,087 3 View

Which cell line should we use to perform biological dosimetry experiments?

We are preparing some experiments based on irradiating cells under different conditions in order to evaluate the effects in terms of DNA damage, genetic expression, etc. As our project is...

01 March 2021 3,355 3 View

Is it possible for two human neuronal cell lines to have different gene sequence for the same protein?

I am looking at the ATP1A2 (Sodium/Potassium ATPase alpha subunit 2) in two human neuronal cell lines. Expression levels of this protein seems to be almost equal when detected by one antibody....

01 March 2021 3,607 3 View

Is CD44 degraded in lysosome together with hyaluronan after CD44 mediated endocytosis of hyaluronic acid?

Also when RHAMM binds hyaluronic acid, they get internalized, will RHAMM also be degraded? Or both CD44 and RHAMM will be transferred back to the cell membrane? Asking for breast cancer cell line...

01 March 2021 8,169 2 View

Do you need the CMV enhancer before the CMV promotor for a proper function of CMV on the gene that follows?

I'm a student and I have to produce a cell line with a knockin for the NRF2 gene with GFP. I have to put a promotor in front of the GFP because the gene will be too far away from the promotor of...

28 February 2021 7,127 2 View

What could be some reasons why unstimulated monocytes are getting activated?

Im doing PBMC isolation -> CD14+ enrichment using magnetic beads -> stimulation setup. My negative control is just cells in cRPMI but they seem to get activated over and over again.

28 February 2021 7,883 3 View