2by3

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Image:2by3.gif

2by3, resolution 1.50Å

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IS RADIATION DAMAGE DEPENDENT ON THE DOSE-RATE USED DURING MACROMOLECULAR CRYSTALLOGRAPHY DATA COLLECTION

Overview

This paper focuses on the radiation-damage effects when applying the same, total X-ray dose to protein crystals at different dose rates. These, experiments have been performed on both a selenomethionated protein and on, bovine trypsin using dose rates that span nearly two orders of magnitude., The results show no clear dose-rate effect on the global indicators of, radiation damage, but a small measurable dose-rate effect could be found, when studying specific radiation damage. It is hypothesized that this, observed dose-rate effect relates to differences in the steady-state, free-radical concentration.

About this Structure

2BY3 is a Single protein structure of sequence from Deinococcus radiodurans with , , , and as ligands. Active as Alpha-amylase, with EC number 3.2.1.1 Known structural/functional Site: . Full crystallographic information is available from OCA.

Reference

Is radiation damage dependent on the dose rate used during macromolecular crystallography data collection?, Leiros HK, Timmins J, Ravelli RB, McSweeney SM, Acta Crystallogr D Biol Crystallogr. 2006 Feb;62(Pt 2):125-32. Epub 2006, Jan 18. PMID:16421442

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