Skip to main content
U.S. flag

An official website of the United States government

Here’s how you know

Official government website icon

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

icon-https

Secure .gov websites use HTTPS
A lock ( Lock Locked padlock icon )or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

NIH: National Institute of Diabetes and Digestive and Kidney Diseases NIH: National Institute of Diabetes and Digestive and Kidney Diseases
bit Xplor-NIH VMD-XPLOR
calcETensor

calcETensor

Calculate an ensemble of SVD alignment tensors from an ensemble of structures and observed RDC values. The tensors are underdetermined.

Usage: calcETensor [options] -rdc <rdc table> <structure files>

rdc table is a colon- or space- separated list of dipolar coupling assignment tables relating to the same medium.

structure files is a list of pdbs to use in determining the tensors.

options:

-weights <weights>    - a colon-separated list of weights to use on
                        structure ensemble members.
-rdcWeights <weights> - a colon-separated list of weights used to
                        weight rdc experiments relative to each other.
-csa <csa table>      - not yet supported.
-maxDa <value>        - set the maximum absolute value of Da
                        [default: 50].
-svdTol <value>       - discard singular values less than value times the
                        average of the singular values.
-aveType <type>       - specify the type of averaging when an atom
                        selection specifies more than one atom. The
                        choices are: sum, average, and pairwise. The
                        default value is pairwise.
-noUseErrs            - do not weight the terms with 1/err in the SVD
                        calculation.

tensor details, predicted and observed dipolar couplings and rmsd values are printed.

Additional common options

  • Privacy Policy
  • Freedom of Information Act
  • Accessibility
  • Disclaimers
  • Copyright
  • Vulnerability Disclosure Policy
  • U.S. Department of Health and Human Services
  • National Institutes of Health