How to write covar.ndx?

I want to test dihedral PCA for my mutated pocket and have trouble understanding the tutorial. How can i generate covar.ndx from the dihedral angles generated in before step. And regarding the...

03 April 2016 9,876 2 View

Mutation causing integer unperturbed charge of system. What to do?

The wild type protein has shown no integer charge where as a mutation in protein R175H has produced an integer charge in system. I used pymol to mutate. is it the centre of problem. Help wil be...

03 April 2016 4,356 2 View

How to renumber residue numbers in .gro and .top?

how can i renumber .gro and .top residue numbers to start with a specific number. The scenario is that i have first 40 residues of DNA and i dont want to disturb them. I just want to renumber from...

02 March 2016 477 1 View

How to perform cationic dummy atom model for a zinc contaning protein?

I am finding it difficult to perform cationic dummy atom model for p53 protein. can anyone suggest me a good and little detailed procedure. * if i perform it with xleap program of ambertools14,...

01 February 2016 2,946 0 View

[SOLVED]How to solve xleap error ( no leaprc in search path)?

I am getting an error in xleap module of Ambertools 14 in which it is unable to find leaprc nor anyother file i added to respective folders as said in this tutorial...

01 February 2016 7,368 2 View

How to get minimum energy structure from MD?

how can we decide on least energy structure of protein and ligand complex from MD simulation.

01 February 2016 5,285 1 View

Why is measurefit in VMD showing following error "measure fit: selections must have the same number of atoms" ?

I tried to align molecules basically proteins at different frames to understand the ligand interaction. But to my dismay it shows an error "measure fit: selections must have the same number of...

08 September 2015 8,589 0 View

Is there a way to decrease gpu/cpu ratio of performance in GROMACS?

when ever i run a simulation in gromacs i end having a note saying GPU is 20% more in use than cpu which could decrease the performance and GPU/CPU ratio is 7.5 which should be ideally. Suggest me...

07 August 2015 2,557 0 View

Does gromac 5.0.2 has seperate gpu to be compiled?

i am a newbie to gromacs(molecular dynamics software), please help me out. i compiled gromacs 5.0.2 for mac and successfully done installing it. But when i checked the following command mdrun...

05 June 2015 2,588 4 View

How can I improve the GA341 score in the modelled protein in modeller?

I have performed series of modelling experiments using modeller to get a series of modeller proteins. But here i am unable to produce models with good GA341 score. I have a hundred percent match...

02 March 2015 6,043 9 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

Resistor definition in Piezoelectric bimorph with ANSYS workbench

Hello, good day! I am trying to simulate similar bimorph piezoelectric harvester with below commands. However, the output power doesn't change with resistor value. Please help to find the reason. ET,10,CIRCU94,0 !SET UP RESISTOR R,1,100000 !RESISTANCE VALUE TYPE,10 !SET ELEMENT TYPE E,1,2 !CREATE RESISTOR BETWEEN NODES 1 AND 2 Thanks in advance Regards,

02 March 2021 0 0 View

Arena simulation - how do i model the following model in ARENA (see description) (new to ARENA)?

Hello, I'm fairly new to ARENA and I have the following problem: I have two queues in which, in each queue, a different order type arrives (both having an arrival rate of exponential 10). Order...

02 March 2021 2,431 3 View

How to repeat an operation on an atom selection for multiple times in PyMol?

Hi, I am trying to construct a multi-layer fibril structure from a single layer in PyMol by translating the layer along the fibril axis. For now, I am able to use the Translate command in PyMol...

02 March 2021 4,569 4 View

Can Virtual Servers (remote dekstop manager) run heavy ANSYS Fluent CFD simulation ?

I have a virtual machine. My host Pc specs are not that good thats why i went for virtual servers. so basically my host pc has 8gb of ram with nvidia quadro k2200 4Gb DDR5 GPU ,processor intel...

01 March 2021 8,415 1 View

What is the difference between genotype and haplotype data in the ped format?

Hi everybody In the ped format for genotype, alleles of any SNP are represented by two columns (one for each allele, separated by a space). Is a column sufficient for the haplotype to...

27 February 2021 1,965 1 View

How to calculate Ligand-active site distance in a ligand-protein complex from MD simulation?

I have run a MD simulation of a ligand-protein complex in GROMACS using CHARMM forcefield. Reviewer has asked me to calculate Ligand-activesite distance and binding free energy of ligand with...

27 February 2021 4,703 1 View