I have built a cellulose fibril model using Cellulose Builder (http://cces-sw.iqm.unicamp.br/cces/). How can I oxidised the surface (C6 oxidation)?

I trying to find the best way to introduce a COO- group at position 6 for some of residues at the surface of my cellulose fibril, either randomly or following a pattern.

07 August 2017 1,560 0 View

Problem inserting protein into a POPC bilayer?

04 May 2014 4,818 5 View

How can I do ensemble docking with Autodock Vina?

I want to do ensemble docking using different conformations of the receptor from MD with Autodock Vina? Is there any script available for such thing?

03 April 2014 638 3 View

Why do constraints equal all-bonds during production run?

03 April 2014 3,332 5 View

Have you ever had problems when loading .trr and/or .trj GROMACS trajectory files in VMD?

I'm a new GROMCS user. I've run an NVT equilibration of a explicitly solvated protein-ligand complex, I've extracted frames throughout the trajectory in both .pdb and .gro format and I've open...

02 March 2014 8,201 1 View

Is there any software or script to transform a coarse grained pdb file to atomistic without knowing the definition of the beads used in CG?

I've tried CG builder of VMD but it does not work

31 December 2013 4,332 2 View

MD MOE RMSD

How to calculate the RMSD values for a MD simulation using MOE?

07 August 2021 0 0 View

MD MOE RMSD

How to calculate the RMSD values for a MD simulation using MOE?

07 August 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

How to analyze a particular region of my simulation box in GROMACS?

Hi, I am using GROMACS 5.1.4 to simulate water in contact with a surface. I am only interested to calculate some properties of water near the surface. Let's say at a distance of x nm from the...

03 March 2021 9,989 2 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

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

Why are the velocities so high in my Boussinesq approximation Fluent simulation?

Hello, I have a mechanism where air rises due to convective flows. In this simulation, nothing is driving the air except this. I understand that the Boussinesq approximation only works for small...

02 March 2021 4,910 3 View