From: Vermaas, Josh (
Date: Mon Apr 05 2021 - 16:37:56 CDT

Hi Alex,

At least on a Linux system with 1.9.4a48, I can open CHARMM-GUI crd files I had previously generated. VMD *did* try to be clever and load them as AMBER coordinates by default, since they also use crd as a file extension, but if you change it to CHARMM coordinates they loaded fine. Do you have an example crd file that is causing you issues?


On 4/5/21 4:41 PM, Alex Nazlidis wrote:
I'm using Windows and I'm downloading lipid conformations from CHARMM-GUI:;!!DZ3fjg!pOZgE-FpguMV_zH-CnWwmoWJX-IytSf3RjqJskBY52FN3juRFZ334LE59F8VG67BUw$ <;!!DZ3fjg!oNd9thPtnN-jEwHzqvYPFF9NdoOjK6HwenLVkZW_HXwQFTWr6O2juYPoUEcjz9ru6g$>
I used to import the .crd molecules by "New molecule->select the .crd file->change the determine file type to CHARMM coordinates" and I could load the molecule.


On Mon, Apr 5, 2021 at 4:33 PM John Stone <<>> wrote:
  What OS/platform are you running on, and which ".crd" file format
are you referring to (there are several)?

  John Stone<>

On Mon, Apr 05, 2021 at 04:31:11PM -0400, Alex Nazlidis wrote:
> Hi all.Ā
> I noticed that the new versions of VMD 1.9.4 won't let me open .crd files
> unlike VMD 1.9.3 which does. Is there any way to open .crd files in
> 1.9.4?Ā
> Best,
> Alex

NIH Center for Macromolecular Modeling and Bioinformatics
Beckman Institute for Advanced Science and Technology
University of Illinois, 405 N. Mathews Ave, Urbana, IL 61801$>           Phone: 217-244-3349$>
Josh Vermaas
Assistant Professor, MSU-DOE Plant Research Lab and Department of Biochemisty and Molecular Biology<>;!!DZ3fjg!pOZgE-FpguMV_zH-CnWwmoWJX-IytSf3RjqJskBY52FN3juRFZ334LE59F-LxYsfug$