Online_DPI: a web server to calculate the diffraction precision index for a protein structure

K. S. Dinesh Kumar, M. Gurusaran, S. N. Satheesh, P. Radha, S. Pavithra, K. P. S. Thulaa Tharshan, John R. Helliwell, K. Sekar
  • Journal of Applied Crystallography, April 2015, International Union of Crystallography
  • DOI: 10.1107/s1600576715006287

What is it about?

The power of X-ray crystal structure analysis as a technique is to ‘see where the atoms are’ but have you wondered what the estimated error on the coordinate of any atom in a protein and/or nucleic acid actually is? Our paper and web tool provides this either for a deposited PDB coordinate file or one that you are preparing.

Why is it important?

The end point of protein structure model refinement requires a knowledge of the individual atomic position errors. An online computing server to estimate the atomic coordinate errors for all the atoms in any protein structure is at the URL http://cluster.physics.iisc.ernet.in/dpi/. It can be used where restraints of a protein model refinement are not applied eg ion pairs or for metal ligands or protonation state determinations when a bond distance restraint is removed. This is important!

Read Publication

http://dx.doi.org/10.1107/s1600576715006287

The following have contributed to this page: Mr Gurusaran Manickam and Professor John Richard Helliwell