GFP positive cellline without any transfection/ modification?

15 April 2020 0 4K Report

Helloo, maybe someone here can help me. i have acellline which gives me at baseline a clear FITC signal, i did not perform any transfection/modification to this line. can you explain this?

Badges
Science topic

More Silke Zimmermann's questions See All

Is there any free reliable software to simulate chemical interactions between polymers and other molecules?

Hello! I need to simulate and investigate possible chemical interactions between some polymers and dye molecules. Is there any free reliable software you would recommend? Thank you in advance....

29 January 2021 541 2 View

Quantitative research - hypothesis formulation necessary?

Dear all, I am planning to undertake quantitative research with a survey for my thesis. I am wondering if the hypothesis formulation is compulsory or am I able to do my research without it? My...

29 July 2020 6,145 5 View

Potassium levels in pediatry?

hello, i need some help. i am searching for good reference values for pediatric laboratories for the potassium levels. in the newest version of "Thomas" i found a good table, but they did not...

05 February 2020 3,396 6 View

Hey! PLease help me out: do yoou know what happens if you add more Sodium azide in your primary antibody dilution? f.ex. 0,1%? any experience?

will the antibody binding be affected? (recommended is 0,02-0,05%) i would be happy to get some help

30 January 2020 7,624 1 View

How can you do statistics with normalized data?

Just briefly: I have WB quantifications from 4 different blots (4 biological repilcates) and I normalized my signal intensity values to the untreated ctrl sample. Therefore, for all 4 replicates...

14 July 2019 3,258 3 View

Internal normalization in Western Blot quantification and statistics. How to?

This might seem like a rather simple problem, but I am actually unable to find a helpful solution that specifically refers to this problem. I did several Western Blots of biological replicates...

10 July 2019 6,476 5 View

Is AmberliteXAD2 an suitable alternative for Bio-Beads?

We are currently looking for cheaper alternatives for removing detergent from proteins during reconstitution into membranes. Bio-Beads work nicely for us, but they are costly. We found now...

15 May 2018 559 2 View

Anyone knows someone interested in a PhD at the TUM in my Chronobiology/Immunology/Microbiota/Gut -group?

Thankful for any help!

24 April 2018 3,291 8 View

Can I selectively remove host cells from mouse blood while retaining intact bacteria?

To enumerate the total amount of bacteria per blood volume, I would like to selectively remove host cells from mouse blood while retaining bacteria. Size filtration is unlikely to work as filters...

22 October 2017 6,278 3 View

Preservation of bacterial transcriptome upon cooling?

Is there any study around on how well bacterial transcriptomes are preserved when they are taken out of the "in vivo" situation and kept on ice for varying amounts of time? In other words, how...

12 September 2017 2,450 2 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

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

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

Problem with shRNA transfection. Why are only two plates getting contaminated instead of all?

I transfected my LNCaP-WT cells with 3 shRNA plus their NTC two weeks ago and split two puromycin selected cell plates on Friday last week(Feb 26). I checked for GFP in the cells, and they all...

28 February 2021 4,949 3 View

The reason that the culture of white fungi Contamination with green mold(Trichoderma), the culture autoclave at121 for 15 min. What is it?

Is the period to autoclave not enough? The inoculation in a hood and flame and UV and alcohol.

27 February 2021 9,356 3 View