I have done ChIP using H3K4me3 antibody, I just want to know what negative control should I use to check my IP effeciency?

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How to do pca analysis of c-alpha atom of the protein?

i m interested in pca analysis of c-alpha atoms in gromacs for that i used the following gmx_mpi covar -s mdca.tpr -f mdca.xtc -o eigenvalca.xvg -v eigenvecca.trr -av average.pdb -n index.ndx but...

30 July 2024 1,607 1 View

Getting this error : gmx_mpi': corrupted size vs. prev_size: 0x0000000001d1b320 ***?

i am using the trjconv command in gromacs gmx_mpi -debug trjconv -s md.gro -f md.xtc -o utr.xtc -fit rot+trans and after few steps i got the error gmx_mpi': corrupted size vs. prev_size:...

17 July 2024 6,216 1 View

How i figuer out the weight of curcumin powder?

I am trying to load curcumin emulsion in 4% chitosan gel but i don not know how many mg powder is needed ?

10 July 2024 2,462 1 View

Any suggestions to enhance the wettability and adhesion of fluorosilanes?

I am facing a difficulty to prepare the thin film which contains fluorine contained silica monomer, as we know F is highly reactive with low surface energy and it could be the reason of low...

09 July 2024 6,017 3 View

Why is the mouse intestinal organoid not forming ?

I am isolating the crypt from mouse small intestine the following several modification of EDTA concentration, 3mM (30 min), 5mM (30 min), 20mM (25 min) at 4 degree. For all the EDTA...

09 May 2024 9,005 2 View

What correction is used when 95%aCI is overlap ?

How we make 95% CI (lower and upper) far, when overlap in analysis, whether we can use effect size to make difference in lower and upper interval

03 May 2024 1,846 2 View

Is Pluriselect a good company to buy kits for cell separation?

I am recently buying kits from Pluriselect to take out (deplete) NK cells and CD4 cells from blood. The main reason me using this is cheap and do not require accessory equipment. But in Pubmed...

02 May 2024 5,861 1 View

WARNING: FENE bond too long: 1 7 8 32968539.141547877 (src/MOLECULE/bond_fene.cpp:83) ERROR on proc 0: Bad FENE bond (src/MOLECULE/bond_fene.cpp:85)?

# Polymer chain simulation with FENE and LJ potential in NVT ensemble # Initialization units lj # Use LJ units atom_style bond # Atoms and bonds boundary p p...

16 April 2024 5,828 0 View

Bond broken in fene potential?

i simulating a single chain polymer with 10 particle with fene and lj but if i increase the no of particle my bonds are being broken . im using parameters as below 20 50000.0 0.1 1000.0 1.0...

15 April 2024 2,748 0 View

How to calculate the center of mass coordinate of the protein in gromacs?

i want to find center of mass coordinate of the protein,for that i using the following command gmx_mpi traj -f md_noPBC.xtc -s md.tpr -com -ox com.xvg -pbc but i m not getting satisfactory...

04 March 2024 814 4 View

Why does my protein refolded to beta sheet during thermal denaturation analysis?

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

Transfection in HEK293T cells?

Dear All, I am trying to transfect a pCDNA3.1 vector containing my gene of interest. The purpose is to figure out the localization of the protein of interest. I have fused the protein with GFP on...

31 July 2024 9,892 4 View

How to retain the a GFP tagged gene expression in stable cell line?

Hello , I established a stable cell line expressing GFP tagged to a centrosomal gene having G418 drug selection marker. I validated the stable line by IFA and Western blotting, results are fine....

29 July 2024 5,007 0 View

What is the relationship between protein structure and N or C terminal tagging choosing?

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

Why cannot i find my protein on cell surface after antibiotic selection of expressing plasmid?

I cannot confirm cell surface protein expression by flow cytometry even after transfection and antibiotic selection of cells. Does it take long for proteins to express on the cell surface? the...

28 July 2024 3,178 3 View

EDC carbodiimide and NHS easter 's half life among different pH?

It has been long known that EDC carbodiimide and NHS easter's half life agains hydrolysis are highly related to pH. However, very surprisingly, not yet found a paper giving a table/chart of their...

25 July 2024 8,738 0 View

Does post-translational protein modification cause devisions on observed pI verses calculated pI?

In running two-dimensional gel electrophoresis on bacterial protein, some spots that appear to match a protein sequence have a significantly more acidic isoelectric point than the calculated pI....

24 July 2024 8,076 3 View

What is the function of fusion tag GAMGSGIQRPTST?

I found that several expression constructs of published protein structures containing an N-teiminal fusion tag GAMGSGIQRPTST. What's the founction of this fusion tag?

23 July 2024 1,353 4 View

The best source for amplification of ADAM17 prodomain?

hi every one I am making vector construction (for fusion proteins) and in this moment I wanna to amplification of ADAM17 prodomain with PCR. to yet, I couldn't amplified the ADAM17 prodomain with...

21 July 2024 8,660 1 View

How to estimate a protien's size using Chimera or PyMol? how correct this estimated can be?

I need to know the approximate size of my target protein for Negative-stain EM. I have an alpha-fold predicted structure of the protein. I do not see any turtorial on internet for estimating the...

21 July 2024 5,732 3 View