Is there any report regarding explant culture from marine cone snail?

31 December 2014 2,451 1 View

I am getting clot after adding TCA into serum - can anyone help?

I want to estimate lipid peroxidation product i.e. MDA from serum. Method includes addition of TCA in first step but after addition serum is getting cloted. Would you please help me to resolve...

10 November 2013 160 12 View

Can anyone help me calculate the concentration of calcium from serum sample?

I have got O.D. for estimating Ca from serum by spectrophotometer. Does anyone have molar extinction coefficient of Ca estimation or can give me values of standard conc. of Ca.?

10 November 2013 8,793 2 View

Which biochemical parameters should be measured to assess the status of oxidative stress?

I want to assess the level of oxidative stress in blood. Which are the biochemical marker/markers to be targeted?

08 September 2013 3,322 16 View

How much ul of restriction enzyme is required to digest 10 ul DNA?

Units of my RE -10,000 units. How much RE is required to digest 10ul of DNA?

08 September 2013 6,408 10 View

How can I correlate biochemical parameters with a particular SNP of a gene?

I have determined biochemical parameters like LDL, HbA1C, etc. I want to know how I can correlate these parameters with SNP of the gene?

05 June 2013 4,511 0 View

I am getting two bands after PCR amplification of my gene of interest. What should I do to solve this problem?

I have even tried different annealing temp but I am getting double bands in all the temperatures I have tried.

04 May 2013 8,018 17 View

Can I do cytogenetic studies from blood samples which were stored for 1 year?

I want to study cytogenetics from blood samples. I have never done this type of study so I want to know if it is possible to do cytogenetic study from blood samples which were stored for a year?

03 April 2013 9,609 2 View

Why am I getting smearing after PCR?

I have isolated DNA from bacterial culture.I amplified 16s DNA with PCR. But I am getting smearing after PCR. What could be the problem regarding this? I am attaching photo of my gel.

03 April 2013 3,636 17 View

Help for RT PCR data analysis

I have been trying to analyse my RT PCR data but I am not able to do so, can anyone offer advice?.

02 March 2013 2,343 4 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

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 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

Any specific pipeline or parameter to analyse total transcriptomics study of brain tissue samples?

I have two groups of brain samples, control and treated for example. It was total RNA nova seq sequencing. I tried all the available pipeline like: star+rsem+deseq2, Hista+stringtie+cuffdiff,...

27 February 2021 356 6 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

Problem with ligating 2.8 kb insert into 8.5 kb plasmid?

I am trying to clone 2 copies of the same mammalian gene into the pSF-CMV-Ub-Puro Ascl (contains HindIII, KpnI and NheI cut sites) plasmid. This is what the final product is supposed to look like...

24 February 2021 6,310 3 View

What urea buffer can i use for biotagged protein extraction from streptavidin beads?

Hi all, I have been doing research on biotagged LDB1 proteins in Mel cells. I purify the proteins using M280 streptavidin beads. The yield is very low so I've been trying to optimize it by...

24 February 2021 5,749 3 View

Can I use a protein-devoid condition as my negative control in ELISA?

Hello, I am running a sandwich-type ELISA where I am trying to inhibit a protein-protein interaction using small molecules. For each experiment, I determine my Z' (Z-prime) to determine the...

23 February 2021 7,429 1 View