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

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

Can in vivo studies be performed on Auxin induced degron P. berghei parasites in mice?

I am planning to generate a Auxin induced degron parasite (P. berghei) for a gene of interest. literature is available for only ex vivo studies in the presence and absence of auxin. Is it possible...

31 December 2017 7,719 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

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

Is There Any Feasible Method To Test Fluorescent Compounds Other Than Fluorescence Spectrometers ??

Is There Any Feasible Method To Test The Efficiency Of Fluorescent Compounds Other Than UV Spectrometers ? Suggestions Would Be Appreciated !

02 March 2021 5,785 3 View

Why might my GFP tag be dissociating from my plasmid after transfection?

I have a set of stably transfected cell lines all transfected with plasmids containing GFP tags on the C terminus. During a western blot using anti-GFP antibody, one of my plasmids has dissociated...

01 March 2021 9,310 4 View

Which fluorescent dye to use for measuring total ROS production?

Is DCFDA appropriate for measuring total ROS production, or can it only detect certain types of ROS? If I want to measure total ROS production, which dye should I use?

01 March 2021 9,447 3 View

How to accurately quantify chitin?

Hi all, I have been working on the quantification of chitin in insect samples and feed for a while but I can notice that the quantification methods (e.g. exposure to HCl, NaOH, and weighing sample...

01 March 2021 1,843 2 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

Can someone suggest a way to prepare slides to observe under confocal microscope for observing fluorescent tagged proteins??

I am growing the cells on coverslips and transfecting the fluorescent tagged protein directly on them. Then i want to observe these cells under confocal microscope. Currently i am just using...

01 March 2021 6,142 3 View

What is the most suitable server for predicting protein structures in bacteria?

I have used the i-Tasser several times, however it has been unavailable for several days. I tried the swiss-model, but the output was not very pleasant due to the model used. Is there any other...

28 February 2021 4,521 3 View

Do you need the CMV enhancer before the CMV promotor for a proper function of CMV on the gene that follows?

I'm a student and I have to produce a cell line with a knockin for the NRF2 gene with GFP. I have to put a promotor in front of the GFP because the gene will be too far away from the promotor of...

28 February 2021 7,127 2 View

Are protein samples in SDS compatible with ELISA?

I have used an AllPrep DNA/RNA/Protein Mini Kit QIAGEN kit to extract RNA and protein from my samples. At the end of the protein purification, I resuspend my protein in 5% SDS. Will these samples...

28 February 2021 7,370 3 View