I want to make a double digestion of beta-galactosidase using Trypsin and GluC. I need a protocol for this, and is it better to make the digestion using both enzymes at the same time or to start with one of them followed by the other?
The activation of trypsonigen to become active trypsine
Hello, i ordered couple of isotopic labeled peptides (13C/15N) for absolute quantification of proteins. The first measurements show that the light one from protein standard and the heavy one do...
08 September 2016 1,180 5 View
Hello together,I am interested in separating peptides based on their cystein residues and looking for commercial product for this purpose. It would be better if it can be done using magnetic beads...
03 April 2016 614 4 View
I have some questions on classification using Support Vector Mahine Recursive Feature Extraction with WEKA. RFE gives a final ranking for the attributes however one needs a method to decide which...
01 February 2015 6,618 11 View
I want to remove hemoglobin from aspergillus cell culture supernatant. It has been used as a sole nitrogen source in order to make aspergillus produce proteases. I want to remove it in order to...
09 October 2014 5,018 10 View
This larva was captured using a plankton net in the Persian Gulf during the summer. I believe it may be a Facetotecta nauplius.
08 August 2024 3,746 4 View
I'm working on selecting antibodies against a recombinant protein that has a His-tag. My idea is to first bind the recombinant protein to a HisTRAP column and then use this column for an affinity...
07 August 2024 505 3 View
Hi! So i attempted to understand a novel protein behavior towards heat application by analyzing its secondary structure change. I subjected the protein to a thermal denaturation analysis using...
06 August 2024 1,989 3 View
Hi I am working on data driven model of the microgrid, for that, i need the reliable datasets for the identification of MG data driven Model. Thanks
02 August 2024 5,748 4 View
Hi guys If anyone is currently working on aging cells, you guys would like to give me some advice. I'm testing against biomarker (SA-beta-Gal), I encountered a false positive in the control group...
02 August 2024 6,735 1 View
Is it the "elution buffer" or the "dialysis buffer"? Note: I'll be using NanoDrop OneC
01 August 2024 967 3 View
Dear All, I am trying to transfect a pCDNA3.1 vector containing my gene of interest. The purpose is to figure out the localization of the protein of interest. I have fused the protein with GFP on...
31 July 2024 9,892 4 View
Hello , I established a stable cell line expressing GFP tagged to a centrosomal gene having G418 drug selection marker. I validated the stable line by IFA and Western blotting, results are fine....
29 July 2024 5,007 0 View
I want to do 2,3-butanediol dehydrogenase(BDH) enzyme purification to confirm its activity for 2,3-butanediol. Before that, I need to confirm which N or C terminal tagging is better for enzyme...
28 July 2024 366 3 View
I cannot confirm cell surface protein expression by flow cytometry even after transfection and antibiotic selection of cells. Does it take long for proteins to express on the cell surface? the...
28 July 2024 3,178 3 View