How can I perform a serine protease phenotypical detection?

What element is driving the different slop in the low frequency tail?

My study consists simple corrosion inhibitors in salty brine. Right now I just fit my circuit with randles with CPE. Just wondering how the slop can given more info of the experiment. Or any...

01 March 2021 6,474 3 View

Can I use a protein-devoid condition as my negative control in ELISA?

Hello, I am running a sandwich-type ELISA where I am trying to inhibit a protein-protein interaction using small molecules. For each experiment, I determine my Z' (Z-prime) to determine the...

23 February 2021 7,429 1 View

Did anyone perform CD107a degranulation assay without the use of inhibitors like monensin?

I am planning to perform a degranulation assay using CD107a antibody. Some resources suggest to use inhibitors like monensin to inhibit the intracellular traficking and acidification of the...

21 February 2021 6,260 3 View

Phenol-pH graphic?

We want to use phenol pH graphic to measure the pH of mediums before and after inhibitor application to cells. We have phenol absorbence values at 460, 560 and 720 nm wavelength. When we measure...

20 February 2021 7,700 3 View

Which way will be better to give OGT inhibitors doses through intravenous or orally for pregnant female rats and concentration suggestion?

I'm planning to use ST078925 OGT inhibitor from TimTec (OGT-O-linked N-acetylglucosamine (GlcNAc) transferase) for female rats.

16 February 2021 7,850 2 View

How long does it take to design and validate transition state analogue inhibitors?

Hi, I'm asking from the point of view of designing a research plan: How long (approximately) can it take to determine the transition state structure of an enzyme substrate using kinetic isotope...

14 February 2021 2,610 1 View

Has anybody administered MK-2206 (an orally active, allosteric inhibitor of AKT) intravenously to the mice?

We aim to use MK-2206 to inhibit AKT in mice. However, a large body of studies suggests that it should be administered orally. I was wondering if somebody could tell me that is it toxic for the...

07 February 2021 6,340 1 View

ACE2 Blotted as a double band?

Hello, I have recently run a western of Vero cells for ACE2. I detected ACE2 at the correct size, but it presents as a double band. The sample was prepared by lysing cells in 1X Laemmli...

07 February 2021 6,973 3 View

Is there any difference between "SEP" as a non standard residue and phohophorylated serine?

I am trying to run a molecular dynamics simulation for a ligand that contains a "SEP" residue. also, I am preparing my files using Charmm-GUI using charmm36 ff, but it says that it will rename my...

31 January 2021 6,321 1 View

How we can dissolve theophylline derivatives for the MTT test?

I have a question about your letter, Fluorescent phosphoinositide 3-kinase inhibitors suitable for monitoring of intracellular distribution. Can you tell me how we can dissolve theophylline for...

26 January 2021 9,094 1 View

Steingrimur Stefansson

Hi Morteza, the easiest way to detect proteinase activity in these bugs is zymography

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC97462/

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC128331/

Morteza Rabi Nezhad Mousavi

Hi. may you explain more!!! because i dont know zymography . I need method for detection but these articles that you introduced are simple and dont explain efficiently. thanks steingrimur

Hi Morteza, here are some papers on the zymography technique

http://docsdrive.com/pdfs/scienceinternational/sciintl/2013/70-75.pdf

http://www.ncbi.nlm.nih.gov/pubmed/9193704

A list of papers on serine proteinase zymography

http://scholar.google.com/scholar?q=serine+zymography+&btnG=&hl=en&as_sdt=20000005&sciodt=1%2C21&cites=8902318142592596246&scipsc=1

thank's a lot

Chitra Latka

Did zymography work for you ?