Comet assay method for DNA damage?

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Can I base on reverse DNA sequences to perform alignment, convert to amino acids and GenBank submission?

I have reverse sequences (AB1 format), can I base on reverse DNA sequences to perform nucleotide alignment, convert nucleotides to amino acids and deposit the sequence in GenBank database?

11 August 2024 5,138 1 View

How much Yeast should we add to fermentation media?

I have prepared a liquid broth containing Yeast (S. Cerevisiae) that i need to add from it to fermentation media of lignocellulosic hydrolysate. I need to know based on what parameters do we add...

06 August 2024 662 1 View

Why did the authors extrapolate a phenotype that they experimentally proved in one bacterial strain across the whole genus of the organism?

I aim to be as skeptical as possible regarding whether a pair of orthologous genes results in the same phenotype in their different but related bacterial organisms under similar environmental...

05 August 2024 6,787 4 View

Do you know any references for analyzing stochastic fiber orientaion composites ?

Hello everyone I am looking for one or some books for propertes and behaviors of stochastic fibre orientation composites. unfotunately I could not find any suitable reference for thias by...

04 August 2024 3,461 3 View

Can telekinesis, telepathy, and prediction be achieved through science?

Information in The Three Dimensions of Time.Information in The Three Dimensions of Time Information Transfer based on Brains Entanglement.Information Transfer based on Brains Entanglement Time...

28 July 2024 7,522 0 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

Trying to make optimization for Mixer on different pdk ?

i make a design topology of mixer For my graduation project working at 28 Ghz on cadence with UMC pdk and get this result S(2,1) 3.5db but when trying to make same topology with another pdk on...

09 June 2024 9,729 3 View

Is it good choice to use the SARC/J auxiliary basis set with def2-SVPD basis set without including any relativistic effects like ZORA or whatever?

I’m currently utilizing the ORCA software for my computations, applying the PBE0 functional combined with the def2-SVPD basis set and incorporating the RIJCOSX approximation. For the auxiliary...

07 June 2024 6,352 0 View

Do the methods of calculating the absorption coefficient (Alpha) from absorbance differ between powder samples and thin films?how is it calculated ?

When using the absorption spectrum to determine the absorption coefficient (Alpha), do the calculation methods differ between powder samples and thin films? If there are differences, what are the...

07 June 2024 8,797 2 View

Litopenaeus vannamei post-larvae for fatty acid and amino acid profile?

For fatty acid and amino acid profile analysis in Litopenaeus vannamei post-larvae (1-1.5 gr), is it necessary to remove the head and peel? or it's possible to use whole body including head, peel...

04 June 2024 4,497 0 View

How to normalize and take the significance of the MTT OD values with 3 replicates for the same cell-line?

Hi, I have a question about normalizing the MTT OD values for doing the statistical analysis. So, if we have 3 different plates and we call them 3 different replicates, so, first we would...

07 August 2024 8,106 4 View

Why activated CAR-Jurkat cell could not kill targets?

Previously when I co-coluture anti-CD19(FMC63) CAR-Jurkat with Raji with E:T=5:1, Jurkat can eliminate Raji in 24h. However, when I test another CAR construct, although I can dectect totally CD69...

06 August 2024 641 2 View

How to isolate lymphocytes from mouse spleen?

I have tried several times to isolate lymphocytes from mouse spleen, but all attempts have been unsuccessful. I tried most available protocols. I used different dissociation media (HBSS with Ca...

04 August 2024 9,913 7 View

What Are the Best Alternatives to the MTT Assay for Assessing Cell Toxicity of Colored Herbal Extracts?

I am currently investigating the cytotoxicity of a series of herbal extracts, and like many studies, I have been using the MTT assay to evaluate cell viability. However, I am encountering a...

31 July 2024 193 4 View

Assistance with MTT Assay Data ?

I did an MTT assay with 2 drugs (Piroxicam and Sulfameter) when I got my results for the 12,24,48,72 hours of incubation with my drug at the following concentrations [ug/ml]...

26 July 2024 7,511 3 View

Can I use sonicator only to lyse the exosomes and measure their protein contents using BCA assay kit?

Hello, I want to ask regarding exosome protein quantification method. Is it necessary to lyse exosomes before measuring their protein contents using BCA assay kit? Or can I just straight away...

23 July 2024 4,603 4 View

How do we pick data for determination of Validation Acceptance Criteria?

Hello, colleagues! There is commenting open for new upcoming edition of USP 1033. Validation target acceptance criteria is now different from what it used to be and it doesn't include Cpm....

23 July 2024 7,292 3 View

My question concerns MTT cell viability assay?

Despite not having cells in the media, I am getting purple color. I have tried many troubleshooting methods, varying media types, and even different MTTs from different companies to figure out the...

21 July 2024 9,914 1 View

Cell proliferation assays suggestions?

What cell proliferation assay do you suggest? cyQUANT from thermo Fischer has good reviews, a lot of good articles for the kit from Abcam. and Promega kits look easy and straight forward.

21 July 2024 1,554 2 View

Why my plant protein cannot resolubilize after TCA/Acetone extraction?

I am extracting proteins from plant samples and am currently attempting to use the TCA/Acetone extraction method. I am having trouble resolubilizing my sample after drying the pellet. I collected...

15 July 2024 9,025 3 View

Xavier Moreau

Hi, ask to my colleague Michel De Méo (see my profile)

Regards

Mehran Hariri

Hi, it depends on your staining method. If you use ethidium-bromide for staining, you have to score your slides immediately with fluorescence microscope. If you use silver staining, you have more time.

Best regards

Seyed Mahmoud Ghasempouri

Thanks all, my problem has been solved by your valuable notes.