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More Andreas Brodehl's questions See All

Who can hep me to analyze WES data for runs of homozygosity?

Hello, we have performed a WES of a single human sample and I am interested to analyse the runs of homozygosity in this sample. Especially, I am interested to unterstand if segmental uniparental...

10 November 2018 7,539 2 View

Has someone experience using Lipofectamine Stem Transfection Reagent for transfection of human induced pulripotent stem cells (iPSC)?

06 July 2018 2,224 0 View

Does T7 Endonuclease need overlapping nucleotides?

We want to know if Cas9 in combination with a sgRNA was working and have performed a PCR in combination with a T7 Assay. Unfortunately, we could not detect any cleavage product for several sgRNAs....

11 December 2017 2,576 1 View

Which bioinformatic prediction tool could be used to predict the influence of indel mutations?

Hi everyone, which other prediction tools (in addition to Provean) could be used to predict the Impact of indel mutations? Thanks for your help! Andreas

06 July 2017 5,699 3 View

Is it possible to compare one sample with a control set of samples?

Hi everyone, I have measured the RNA of a single patient with a specific rare mutation using qRT-PCR and I have compared it with a control set of probands. My problem is, that I have only one...

04 May 2017 7,264 2 View

What are the best fluorescence proteins for structured illumination microscopy?

Hello everyone, I want to do SIM with three different proteins in living cells. Therefore, I need three different fluorescence proteins with high photostability and high brightness? Could anyone...

02 March 2017 3,617 6 View

What is the definition of stable cell line?

Hi everyone, if I transfect a plasmid with a resistence gene (puromycin) via Lipofectamin (but not with a virus) into eukaryotic cells and select these cells with puromycin over some weeks is the...

02 March 2017 5,470 0 View

Is it possible to use two fluorescence protein tags to increase the brigthness?

Hello everyone, I want to do SIM with living cells and therefore I need fluorescence proteins with high brightness and high photostability. Therefore, I want to ask if someone has fused his/her...

02 March 2017 9,793 3 View

Experience with Bmt1 (restriction enzyme)?

Has anyone experiences with the retriction enzyme BmtI? Are there important specific points to know about this restriction enzyme?

09 October 2014 2,821 1 View

Is it necessary to put the QBI SP163 Enhancer directly upstream of the ATG?

I want to increase the expression of my proteins by inserting the QBI SP163 Enhancer (pcDNA4-Max System, Invitrogen) into another vector system. I want to know if I can add a restriction site (via...

04 May 2014 3,062 0 View

Can I change concentration and brand of antibodies mid-experiment?

I am doing immunohistochemistry of the c-Fos protein and I have a budget problem. For context, the experiment has been done over 3 years prior to my arrival and I have 40 brains done and 100 left....

29 July 2024 5,961 2 View

Sodium azide in immunohistochemistry?

Hello everyone, A collaborator sent us his protocol in order to be able to use his immunohistochemistry kits. But one step contains PBS + 0.3% H2O2 + 0.1% sodium azide. Knowing the dangerousness...

23 July 2024 6,314 3 View

How to label synapses in over-fixed mice brain sections (40 um) via immunohistochemistry (IHC)?

We have mice brains that were over-fixed due to old PFA used during perfusion. Thus, the synapses are no longer being labeled by the Synaptophysin (SY38) mAB. which works perfectly every other...

17 July 2024 7,767 3 View

Is perfusion required to stain brain tissue with every method?

I'm looking to immunostain some brain tissue collected previously. The animal was *not* perfused prior to tissue collection. Will the presence of blood interfere with all staining methods...

14 July 2024 177 4 View

Can I use BSA for a Histological Blocking Solution?

Hi all, I would like to know if it is possible to use Bovine Serum Albumin (BSA) in my blocking solution for immunofluorescence muscle fiber typing. The primary antibodies' host is mouse. The...

07 July 2024 7,967 3 View

To what degree does the immunohistochemical (IHC) evaluation of Ki-67 hold diagnostic value beyond neoplastic pathologies?

In the context of doctoral research, I utilized immunohistochemical (IHC) analysis to quantify the expression levels of the Ki-67 proliferation marker. While the application of this test and...

25 June 2024 7,825 2 View

Help with mounting meningeal tissues with Prolong Diamond?

Hello! I've recently been trying to optimise immunofluorescent staining of mouse meningeal tissue, and I'm having trouble mounting it just because it's so thick. We use prolong to mount and...

05 June 2024 624 2 View

Hello! Does someone know of any antibody for neurotensin?

I need to do immunohistochemistry in mouse brain, particularly in neurotensin-cre mouse line.

22 May 2024 3,565 7 View

Air bubbles forming underneath tissue during dehydration step of IHC?

Hi all, I've processed my own IHC for many years and never run into this problem before, but the last few times I've tried staining, I've had the same issue. I'm wondering if it's a reagent...

08 May 2024 3,979 1 View

Shandon Sequenza leaves my IHC samples with spots that have not been stained?

I have been using Shandon Sequenza for the last two years with no problems. Lately i have noticed small spots under a microscope that have not been stained by DAB (only hematoxylin as a contrast...

28 April 2024 2,530 1 View

FLORIN GEORGE FRUNZA

nitrotyrosine is detected

Wolfgang H. Muss

Don't know what was happening with the "lost" question.

A "?" can only be replied to with "??"

Nitroproteome is in study.

Nitrated protrein have new action on cellular and molecular targets.

Peroxinitrite nitrates and aggregates proteins