I want to add metformin to the mice's drinking water, but there are a lot of forms of soluble metformin in the Sigma-Aldrich website. I will be grateful for the recommended form.
I am a bit confused whether phosphorylated DNA is needed to achieve efficient homologous recombination in e coli. I believe there are methods that use ssDNA oligos or PCR products as inserts for...
04 January 2024 2,196 1 View
I am attempting to design an oligo to modify the lambda genome using ssDNA recombination roughly following the protocol of Thomason LC, Oppenheim AB, Court DL. Modifying bacteriophage lambda with...
16 August 2023 7,660 4 View
E coli strain JM109(DE3) has its genotype listed as endA1 glnV44 thi-1 relA1 gyrA96 recA1 mcrB+ Δ(lac-proAB) e14- [F' traD36 proAB+ lacIq lacZΔM15] hsdR17(rK-mK+) (λDE3). It seems like it should...
21 June 2023 3,398 2 View
Looking for Protocol of GRIESS reagent test on brain. many thanks
12 June 2023 7,829 1 View
We have been using PC-3 and LNCaP cell lines for negative and positive PSMA expression controls. The LNCaP cells are not the ideal because they grow slowly and don't form an adherent monolayer....
08 June 2022 9,383 2 View
If I understand the Lambda genome correctly it seems that some of the sequence of genes isn't the most logical. When the phage enters the lytic cycle its late rightward promoter first transcribes...
23 March 2022 10,025 2 View
I am trying a new protocol to screen colonies for protein expression where a membrane is placed on the plated colonies and lifted. Then the adsorbed cells are lysed and the protein binds to the...
22 February 2022 9,179 2 View
Does anyone know of a source to find antibodies to bacteriophage lambda? An anti-gpD antibody for the capsid protein would be especially helpful. I haven't seen anything when I search online but...
29 November 2020 3,921 2 View
I am looking for mutant strains of lambda phage that are virulent or strictly lytic. I know there are various mutations that achieve this but can't find any available on ATCC. Does anyone work...
09 September 2020 9,653 1 View
I've been regularly doing plaque assays for a few months using lambda phage to establish the phage titer. It took some time to get the assay to work, at first we didn't dilute sufficiently so we...
25 August 2020 2,164 6 View
Hello, I am currently having problems with RNA extraction. I am using mouse liver (C57BL6J), and I have extracted RNA from mouse liver before. Before this experiment, my final RNA pellets were...
11 August 2024 7,082 3 View
Can anyone share any reference that gives mouse specific CD3 antibody sequence. I have been searching for this since few days and no luck. Thank you very much
08 August 2024 9,157 4 View
I am experimenting with cancer and non-cancer cells in a 12-well plate for 4 days with a seeding density 1*10^4/well, however, I noticed that the control group growth rate slows down on D3. Should...
07 August 2024 2,283 2 View
Hi! So i attempted to understand a novel protein behavior towards heat application by analyzing its secondary structure change. I subjected the protein to a thermal denaturation analysis using...
06 August 2024 1,989 3 View
Hi all, I was just wondering if anyone has experience with multiplexing a mouse monoclonal primary and a rat primary. I'm trying to multiplex by incubating them in the same well but was told by a...
06 August 2024 9,710 1 View
i have sorted anti-NP specific plasma cells from bone marrow of C57BL/6 mice at certain times after immunization with variable counts and isolated total RNA using TRIZOL method for RT-PCR using...
05 August 2024 8,835 1 View
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
I´ve been unable to find specific information about this neurotrophin in the CNS of rabbits exclusively. There is extensive info in mice, fish and rats, but in brain´s rabbit is hard to find....
04 August 2024 762 1 View
I work on MCF7 cell cell for anticaner purpose and I wa to do drug preperation the drug ( secondary metabolites extracted from Aspergillus) My question which solvent is better with these secodary...
03 August 2024 4,725 2 View
Hello, if you made a transwell assay where you incubate the cells with a nanoparticle-encapsulated drug and considering that in the oposite compartment you'll have both the free and encapsulte...
03 August 2024 2,730 1 View