How to make fractions of chloroform extract of plant, using seperating funnel?

28 February 2021 8,466 2 View

Current List of Journals on Thomas and reuters?

Does anyone know the current list of Thomas and reuters Journals.

30 January 2018 4,691 2 View

Can someone advise on the effect of glass systems?

I have a glass system which is to know the effect of B2O3 in glass system. Then, I want to make a glass system is 100% per set then, it is not possible to make 100% per set if I just make only...

13 November 2013 2,839 4 View

Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence?

I am on the lookout for the Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence. Does anyone know where I can find it? Thank you in advance

03 March 2021 3,568 1 View

Precipitate after adding laemmli buffer to protein solution containing Potassium Acetate?

Hi, I am running a size exclusion chromatography experiment with a buffer containing Potassium Acetate as a salt. I analyse these fractions through SDS-PAGE. After boiling my SEC fractions in...

01 March 2021 2,622 3 View

What's the concentration recommend for recombinant protein use in western blotting?

I'm currently working having problem with the concentration for recombinant protein use in western blot, the one been used is Recombinant Human CD19 Fc Chimera Protein-rndsystem which does not...

24 February 2021 8,514 3 View

Can two EC50 values with different hill slopes be compared?

Hello, I fit a classical dose response curve Y=Bottom + (Top-Bottom)/(1+10^((LogEC-X)*HillSlope)) to my data (not related to inhibitors etc). The model I use is purely qualitative but it fits...

23 February 2021 8,155 5 View

Will SARS-CoV-2 Spike be broken into S1 and S2 by denaturing conditions?

Hello, I am performing a western blot of my SARS-CoV-2 Spike-pseudotyped lentiviral particles. I denature my virus by adding concentrated virus to 2X Laemmli buffer at 1:1, then boiling for...

17 February 2021 4,844 4 View

What is the best temperature to coat an ELISA plate?

Hello, I want to control the temperature of my ELISA plate during incubations to get consistent results. In general, what is the best temperature to coat the plate with antibody? I have been...

16 February 2021 2,377 7 View

Kinetics of Enzyme production in Recombinant E Coli?

Hello, I am trying to find kinetic information (such as rate of enzyme production etc.) on the expression of taq polymerase in E-Coli after inserting a recombinant plasmid. Any help would be...

12 February 2021 1,386 3 View

Is there a way to tell based on appearance which protein crystal should diffract the best?

I have had unheard of success with protein crystallography lately from a super successful protein expression and purification batch. I have attained a lately reproducible vast amount of crystals...

09 February 2021 5,155 5 View

Is it possible to quantify recombinant protein in the supernatant using SDS PAGE ?

I would like to quantify a recombinant protein (with native signal sequence) secreted by Pichia pastoris using the SDS PAGE. Since my standard protein (plant origin) is not pure, I would like to...

07 February 2021 3,880 9 View

How to measure the concentration of a labeled protein with no tryptophan or tyrosines?

Hey I'm trying to measure the concentration of a protein I've purified and then labeled with Atto 647 flourescent dye. The protein has no tryptophans or tyrosines (although does have...

04 February 2021 4,482 4 View