.PROT File Extension

XEASY Atom List

Developer ETH Zurich
1.0  |  2 Votes
Category Data Files
Format Text

What is a PROT file?

A PROT file is an atom list created and used by XEASY, a Nuclear Magnetic Resonance (NMR) spectrum analysis application. It is a plain text file that describes an atom's nuclear magnetic resonance. PROT files are meant to be opened and viewed in XEASY, using the Load atoms option.

More Information

Scientists and researchers can use XEASY to perform a 3D spectrum analysis of macromolecules, using NMR. One of the measurements XEASY records is a macromolecule's atom list. The atom list contains the name and frequencies of a macromolecule's resonances, and it is saved as a PROT file.

Each PROT file contains several rows of numerical and text values. Each row corresponds to an individual atom, and contains identifying information about that atom. In order, each atom's row includes:

  • The atom's unique ID number
  • The atom's mean chemical shift in part per million
  • The deviation of the atom's assigned peaks from the mean value
  • The atom's name
  • The atom's fragment number
  • The atom's reference lineshapes

To create an atom list in XEASY, scientists use the program's Write atoms (chem.shift) [wc] command. This produces a PROT file for the current macromolecule.

How to open a PROT file

You can open a PROT file in XEASY (Linux), using the program's Load atoms (chem.shift) [lc] command.

If you do not have access to XEASY, you can also open a PROT file in any text editor, to view the atom list it contains.

Open over 400 file formats with File Viewer Plus.Free Download

Programs that open PROT files

Included with OS
Included with OS
Updated August 27, 2021

Verified by FileInfo.com

The FileInfo.com team has independently researched the XEASY Atom List file format and Mac, Windows, and Linux apps listed on this page. Our goal is 100% accuracy and we only publish information about file types that we have verified.

If you would like to suggest any additions or updates to this page, please let us know.