Hi,
I am planning to tag a gene endogenously (in vivo) in E. coli for immunoprecipitation. Can anyone suggest an elegant protocol for this? Thanks!
Keep in mind that FLAG tag is very good for analysis, but not so useful if you want to purify your protein.
In designing a clinical trial, it is necessary to consider a false pressure point for sham groups. Given that the main pressure point is around the lumbocostal region, what specific point or...
26 May 2023 8,250 1 View
Hi, I am trying to express a gene which belong to classical TA (Toxin-Antitoxin) module. Specifically, I am trying to express the toxin gene using pBAD vector in BL21 cells. Despite trying out...
08 March 2022 8,311 2 View
Hi, I am traying to optimize the expression level of my protein cloned in pBAD vector. Currently, I am inducing it at 0.002 w/v but see a significant overexpression of my protein. The current...
26 May 2021 6,335 2 View
Hi, Does anyone know of any plasmid where I can clone two genes under two promoters? Basically, I want to coexpress these protein together but with Arabinose inducible system. pETDuet,...
07 May 2020 8,328 0 View
Hi, Is there any way to prove that a protein is membrane anchored/peripheral membrane protein? Any simple trick or any technique will be helpful. Thanks
24 November 2019 1,152 5 View
Hi, Can someone please suggest which detergents to use in regular lysis buffer/resuspension buffer for E. coli cells? Please also suggest the optimum concentration to be used. Thanks.
24 November 2019 1,485 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...
21 March 2019 3,201 4 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,...
17 December 2018 8,644 2 View
Hi, Can anyone please highlight the difference between normal agarose and agarose low EEO? Any specification as to which to use for agarose gel electrophoresis? Is it that extraction of pcr band...
30 November 2018 6,802 3 View
Hi, I wanted to perform docking through SwissDock. They ask for target structure in pdb format. But the ligand should be in MOL2 format. Does anyone know how can I get MOL2 format or any...
06 November 2018 7,714 7 View
I want to do 2,3-butanediol dehydrogenase(BDH) enzyme purification to confirm its activity for 2,3-butanediol. Before that, I need to confirm which N or C terminal tagging is better for enzyme...
28 July 2024 366 3 View
Hello all, I extracted RNA from my samples and performed RIP-seq. After annotating the genomic regions using R, I obtained promoters, exons, introns, and UTRs. Given that my samples consist of...
18 July 2024 1,579 2 View
I heard that as the value of "num_iter(tag in wannier 90)" is higher, spread of Wannier function(=WF) is gradually lower in wannier 90. If so, is this procedure that minimize the spread of WF...
13 July 2024 4,608 0 View
I am having trouble expressing a protein and have heard that co-transforming it can improve stability and increase expression, so I am looking to try this experiment. I only need the kinase domain...
08 July 2024 2,935 5 View
I am working on centrosomal proteins. I overexpressed my POI and then I did SNAP capture pulldown followed by mass spec and I got approximately 700 protein hits. I am trying to validate specific...
03 July 2024 5,701 0 View
How to store SDS-PAGE for fluorescent imaging without fixatives? I am running protein samples on SDS-PAGE that are tagged with fluorophores. If I place the gel in a destain solution of...
29 June 2024 8,720 1 View
Hi, may I know I want to fuse my protein with affinity tag for protein purification in Expi293, how can I determine and visualise how does a N or C terminal tag affect my proteins (structure,...
24 June 2024 8,622 6 View
To calculate the spin density using Gaussian software, is it necessary to provide the IOP tag? If so, what is the significance of this requirement?
02 June 2024 4,001 1 View
I am expressing an mCherry tagged protein. Yield of total protein is good but the fluorescence intensity is very low (ie. Protein assays and gels show a lot of protein but this does not correspond...
28 May 2024 4,828 1 View
I am preparing a case study of a social work professional organisation which is non-existent now but had a glorious past. For this, I interviewed around 20 members of the association to understand...
18 May 2024 6,656 3 View