Hi,
Can anyone please explain need of secondary culture in protein expression?
Can I directly colony from LB agar plate and grow in LB, then when OD reaches 0.6, Can I induce it with IPTG?
Hi, Anyone has first hand experience of publishing in F1000Research. I guess it follows open peer review and does not encourage measurable parameters like impact factor! What are pros and cons...
05 June 2019 9,763 1 View
Hi, I have two proteins that are his tagged at N-terminus. One of them forms hexamer around 370kDa and other is 17kDa. I want to check their interaction and get Kd value. Which of the following...
03 April 2019 1,604 5 View
Hi all, I have a protein with conserved Threonine and one Lysine in the middle of the protein sequence. Being a charged and conserved amino acid across family domain of this protein, I have strong...
02 March 2019 4,959 5 View
Hi, I have cloned some three different constructs which are putative membrane protein of Mycobacterium tuberculosis into pET28a with N-term His tag. I tried to express them in BL21, Rosetta, C41,...
11 December 2018 1,979 3 View
Hi, Can anyone please tell some bioinformatics server that helps in predicting the location of flexible region in a protein.?
10 November 2018 6,649 0 View
Hi, Can anyone please highlight the difference between Coomassie Brilliant Blue R-250 and G-250?? Which one of them will stain the SDS gel faster?
09 October 2018 3,062 0 View
Hi, I was just curious to know whether the scientific articles and review published in preprint repository like bioRxiv are citable? If yes, is it good practice to do that since mostly such...
09 October 2018 4,812 4 View
Hi, I want to add about 5 CMC DDM detergent in my Size exclusion buffer. Is it advisable to add detergent and then degass by vacuum or degass the buffer first and then add DDM dropwise slowly??
08 September 2018 4,241 3 View
Hi, Can someone please tell pros and cons briefly of publishing in preprint servers like bioRxiv?
07 August 2018 7,726 1 View
Hi, One of my colleague put the Superdex 200 10/300 GL column mistakenly in 1M NaOH at flowrate of 0.2ml/min overnight instead of water wash. Will the column be stable? How to know that the...
07 August 2018 5,344 1 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, 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
I have been performing short phagocytosis experiments using 96-round bottom, tissue culture treated, well plates (Falcon, 353077). I culture the cells with the phagocytic cargo for 2-4hrs, wash...
04 August 2024 5,228 4 View
In my study, I intend to infect PBMCs with SARS-CoV-2. After that, I will analyze NK cells by flow cytometry to see if their phenotype changes or if they show degranulation. After the infection, I...
01 August 2024 4,403 4 View
Dear researchers, Today, we found this object in one of the wells of a 96wp culture plate. The plate contained MEC-1 cells and GelTrex. I am quite curious what this is (because it's not cells). Do...
01 August 2024 2,250 2 View
Does anybody know of entomological Journals without page charges that would publish an extensive checklist (Hong Kong Aculeates wasps) covering 350 species (of which more than half are new to Hong...
01 August 2024 6,134 2 View
Some Staphylococcus aureus strains Inhibit the growth of Mycobacteria in Mueller Hinton Agar medium containing 10% OADC. Do some Staphylococcus aureus strains have in vitro antimycobacterial activity?
29 July 2024 10,023 2 View
Please address the best way to drop a plasmid. Background: I have a "bait" plasmid resistant to kanamycin and a "prey" plasmid resistant to carbenicillin. After many rounds of streaking on...
25 July 2024 2,532 3 View
I am cloning an overexpression plasmid with my protein of interest tagged with mScarlet. After transforming my ligated product into DH5α bacteria and plating on LB agar, I noticed colonies with a...
22 July 2024 5,953 6 View
Hi, Kindly guide me that how many cells of HEC1A & HEC1B Cell lines should I seed for Wound healing assay and which plate type is recommended 6, 12 & 24?. Articles suggested mainly 24...
20 July 2024 4,143 2 View