Does any know the difference between psPAX and PAX2 LV plasmid?

I want to know which one is more suitable for dendritic cell transduction. I see that in: https://www.cell.com/cell/pdfExtended/S0092-8674(15)00829-6 PAX2 plasmid is used for dendritic cells...

31 December 2018 3,696 3 View

Is there a difference between human and mice codon optimised sequences?

I have a Cas9 plasmid which is human codon optimised. Will there be any difference in Cas9 protein expression if this is expressed in mice?

07 August 2018 5,808 0 View

How to add +/- signs in front of calculated mean value in Excel?

I'm not referring to error bars. I want to add +/- signs in front of my mean (just like in a paper), without having to go to insert symbols and inserting them individually. Are there any keys to...

10 November 2013 8,421 9 View

Is SOD and CAT activity present after 24h of autopsy provided its stored at -20C?

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09 October 2013 5,827 1 View

In which solvents are beta-carboline alkaloids soluble?

I tried it with water, 5% DMSO but it seems to insoluble in those solvents.

09 October 2013 6,216 7 View

Why are standards for phenolics dissolved in methanol for HPLC?

Why are standards for phenolics dissolved in methanol for HPLC?

09 October 2013 350 9 View

Identifing the epididymal luminal protein/s in lizards?

08 September 2013 2,651 4 View

TLC trouble shooting

I'm running TLC with silica sheets. As the solvent travels quarter way up its movement changes such that we no longer see a straight line of solvent but rather a squiggly line. This largely...

08 September 2013 7,048 15 View

What are your thoughts on my observations of STZ in fed and fasted conditions?

What should be the nutritional status of wistar rats before the injection of STZ.? I came across this very interesting paper titled 'Streptozotocin is equally diabetogenic whether administered to...

07 August 2013 6,918 1 View

what does 30% w/v of H2O2 mean?

what does 30% w/v of H2O2 mean? does it mean 30g of H2O2 is present in 100ml of that solution?

07 August 2013 529 17 View

Is there any test to determine the cardiovascular risk of patients with obesity? from the perspective of obesity?

We found tests to determine cardiovascular risk taking into account lipid profile, blood pressure, age, history of diabetes, other laboratories. But when weight is involved, there is a paradox. I...

02 March 2021 6,036 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

How to replicate the well conditions of a crystal hit with 20%(w/v) isopropanol?

I had a crystal hit in a well with 0.1M HEPEs pH 7.5, 10%(w/v) PEG 4000, and 20%(w/v) isopropanol. Why is isopropanol in w/v here if it's just solvent? How do I recreate this well condition?

25 February 2021 9,761 1 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

Do I need to introduce HFD to ob/ob mice to obtain a T2DM model?

I am planning to work on T2 diabetic animals and check the efficacy of probiotics. My initial plan is to fed B6 animals with HFD for a while. But now, I have the chance to work on ob/ob mice. My...

18 February 2021 6,896 3 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

Analyze anthocyanin use pH differential method?

Hello everyone. I do my anthocyanin test for biscuit incorporated with muntingia calabura fruit powder. I use ultrasonic bath for extraction biscuit powder in metanol HCl 0,1 N (1:10, w/v),...

10 February 2021 2,970 13 View

2D wavelet transform?

Dear all I have a 2-dimensional mode shape of one concrete beam and I put the data of mode shape in a matrix (69*3) which the first column in the matrix is x coordination of my beam and the second...

10 February 2021 3,301 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