Why my target protein shows two elution peaks in the chromatogram during Ni-NTA?

I obtained two peaks during the affinity chrokatography which are next to each other. After I run SDS-PAGE, both peaks are my target protein. I am curious about the reason behind that, can anyone...

07 August 2019 5,771 3 View

Can PEG prepared from powder used for protein crystallization?

I am wondering whether the PEG prepared from powder is suitable for crystallisation purpose. As I read from the product speciation of PEG produced by Hampton Research, it mentioned that it is...

06 July 2019 3,655 7 View

Will the use of tryptone and yeast extract in autoinduction media produce protein that is problematic for isotope-labeling?

I have went through some of the publications about the overexpression of protein for NMR studies. They had mentioned that the minimal media and autoinduction media can be used for producing...

04 May 2019 1,288 4 View

Why thrombin doesn't show in SDS-PAGE after thrombin cleavage?

I have incubated my protein with thrombin, and it has successfully cleaved the tag from my protein. I was thinking that the thrombin should have show in the SDS-PAGE as well, but I didn't see any...

02 March 2019 5,604 12 View

Will the band of plasmid different from the expected base pair?

My plasmid size is ~6000bp, when I extracted the plasmid and run it in 1% agarose, it shows one band above 1kb, one band in between 1kb and 7000bp, and one band in between 5200bp - 4000bp. There...

10 November 2018 6,972 6 View

What is the theory behind energy minimization by GROMOS?

GROMOS is popular with their MD simulation function, besides they can perform energy calculation and energy minimization of model as well. May I know is the energy minimization and energy...

02 March 2018 9,795 1 View

Hanging long strand in my predicted protein modeled resulted from unaligned sequence, what should I do?

From my alignment results, there is a consecutive sequence (around 32 amino acids) which is present in my target but not in my template. After I modeled my protein with MODELLER, that sequence...

31 December 2017 2,310 6 View

error in running a model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

error in modelling model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

MGL tools

20 June 2021 0 0 View

i have some problem with chtMultiRegionSimpleFoam

--> FOAM FATAL ERROR: Maximum number of iterations exceeded From function Foam::scalar Foam::species::thermo::T(Foam::scalar, Foam::scalar, Foam::scalar, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar) const) const [with Thermo = Foam::hConstThermo >; Type = Foam::sensibleEnthalpy; Foam::scalar = double; Foam::species::thermo = Foam::species::thermo >, Foam::sensibleEnthalpy>] in file /home/ubuntu/OpenFOAM/OpenFOAM-4.1/src/thermophysicalModels/specie/lnInclude/thermoI.H at line 66. FOAM aborting #0 Foam::error::printStack(Foam::Ostream&) at ??:? #1 Foam::error::abort() at ??:? #2 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::calculate() at ??:? #3 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::correct() at ??:? #4 ? at ??:? #5 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6" #6 ? at ??:?

24 March 2021 0 0 View

How to compare two groups with only two measurements?

Hiiiii everyone! I have an enquiry on statistical analysis. I was looking for many forum and it's still cannot solve my problem. I want to compare means of two groups of data but only with two...

03 March 2021 8,796 3 View

Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence?

I am on the lookout for the Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence. Does anyone know where I can find it? Thank you in advance

03 March 2021 3,568 1 View

What kind of fluid could I use for a pitfall trap that also does not invalidate molecular testing?

Hi, I want to start testing pitfall trap to obtain ants samples, but I need to conduct molecular analysis on those insects. So, what kind of fluid can I use? Ethanol expires too early and I need...

03 March 2021 5,978 5 View

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10?

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10? Since, the growth curve from day 2 to 10 won't be like the "Logistic curve" it might not follow logistic...

03 March 2021 1,401 3 View

Do we need to write protocol for a second study of a systematic review that has been registered and published?

I have conducted and published a systematic review and meta-analysis research with the topic related to public health and health pomotion (protocol was registed in PROSPERO). Now we want to...

03 March 2021 8,920 3 View

How to increase a model accuracy ?

dear community, my model is based feature extraction from non stationary signals using discrete Wavelet Transform and then using statistical features then machine learning classifiers in order to...

03 March 2021 6,994 5 View