Where can I find the following reagents?

Are there any vendors for the following chemicals in INDIA other than SIGMA Dibenzyl N,N-diisopropylphosphoramidite Tetrol-7 thanks in advance

09 October 2018 8,136 0 View

Synthesis of phosphorylated hydroxy acids?

I want to synthesis phospho lactate. Please suggest a protocol which is specific for lactic acid or in general for any hydroxy acid? this involves phosphorylation of the OH group. thanks in advance

09 October 2018 2,619 0 View

Reversible temperature dependent protein precipitation ?

I am working on a mesophilic protein (37 kDa and dimer in solution). I wanted to crystalize this protein and hence concentrated it to ~10 mg/mL. when kept on ice, the protein precipitated. kept...

07 August 2018 9,752 6 View

Leucine 60 to proline mutation in GFPmut3?

We wanted to tag a protein of interest with GFP mut3 version. upon generating the construct and sequencing it we found it has an additional mutation. A conserved leucine at 60th position had got...

07 August 2018 7,631 0 View

Soft and gel like protien crystals?

I am trying to crystallize a mesophilic enzyme and had set up screening for conditions by microbatch method. I saw huge structures in many conditions (images attached) after 3 weeks. But when we...

07 August 2018 7,397 0 View

Is there growth difference between ade1 and ade2 knockout yeast?

Hi, I am interested in nucleotide metabolism and performed serial dilution and spotting using ade1 and ade2 knockout yeast strains. it seems like ade1 grows slower than ade2 eventhough they are...

01 February 2018 9,067 0 View

"yeast secretory expression of heterologus proteins"?

08 September 2017 6,975 7 View

Generation of sequence alignment and Phylogenetic tree (for protein)

I did a blast search with a sequence of my protein of interest. I got around 4000 sequences in the result. How do I eliminate redundant sequences and multiple entries for the same organism from a...

05 June 2017 4,205 4 View

What is the probability of getting revertants after yeast transformation?

Hi, I am working with a yeast strain which is knockout for a gene of interest (AMP Deaminase) (gene replaced by g418 casette). this strain cannot grow on S-adenosyl methionine (SAM). I transformed...

01 February 2016 4,567 2 View

Query regarding serial dilution and spotting assay????

31 December 2015 9,880 3 View

How can I measure MMP-1 protein activity or protein level from liver tissue?

Instead of checking only the mRNA level, I want to check the active protein level of MMP-1 in Liver tissue from mice. How can I do that?

03 March 2021 1,763 2 View

Resistor definition in Piezoelectric bimorph with ANSYS workbench

Hello, good day! I am trying to simulate similar bimorph piezoelectric harvester with below commands. However, the output power doesn't change with resistor value. Please help to find the reason. ET,10,CIRCU94,0 !SET UP RESISTOR R,1,100000 !RESISTANCE VALUE TYPE,10 !SET ELEMENT TYPE E,1,2 !CREATE RESISTOR BETWEEN NODES 1 AND 2 Thanks in advance Regards,

02 March 2021 0 0 View

I have designed reflectarray element and feeding it though Horn Antenna on HFSS. After full wave simulation, I am not getting desired results?

I have designed reflectarray element to generate OAM beams at 5.8GHz and feeding it though Horn Antenna on HFSS. After full wave simulation, i am not getting desired results i.e Radiation pattern...

01 March 2021 9,701 5 View

IHC on mouse liver hepatocytes?

Can anyone help me choose primary antibodies for mouse liver hepatocytes and also in conjunction Cd8 cells. Also Cd3 cells. I want to look at hepatocytes and adjacent immune cells in mice with...

01 March 2021 6,953 1 View

How to avoid ulcers in s.c. injected tumors ?

Recently, we have injected s.c. B16F10 tumor cells in BL/6 mice. At around 12-15th day some animals showed ulcerations in tumors , with a big hole in the middle (it looks like a volcano). We have...

01 March 2021 9,938 3 View

How to define tie constraint between rigid body and another part in dynamic explicit model of Abaqus?

Hi dear researchers I connected a rigid body into the part of my structure by tie constraint and then I added displacement to rigid body, in static general step every thing is fine and these two...

28 February 2021 3,442 2 View

Is there a method of determining feed digestibility without the need to re-pellet the feed?

I am aiming to determine the ADC values of a commercial fish feed, but I do not have a steam pelleter or extruder available to me. Ideally, the pellets could be coated with some inert marker....

28 February 2021 7,967 3 View

Interested to stain mice tissue with WGA 488 conjugate, anybody has a protocol to recommend?

Interested to stain mice brain tissue with WGA 488 conjugate, appreciate if anyone willing to offer me some guidance or suggestions! Thank you!

28 February 2021 3,951 2 View

Looking for genomic DNA extraction kits from mouse tissue (centrifuge-based, not spin-column)?

Hello. I am looking to extract genomic DNA from mouse brain and lungs and I need a kit that is not spin-column based because I need to scale up the solution amounts for 400mg tissue (most cap at...

25 February 2021 155 2 View

What are the pros and cons for mice versus rats?

Hi Everyone, I am designing a pilot study using rodents to assess the effects of simulated space environments (radiation + altered gravity) on microbiome and immune system. I have limited...

24 February 2021 1,825 3 View