ISDA

Entry Detail

PDB ID:

2BY8

Keywords:

HYDROLASE

Title:

Is radiation damage dependent on the dose-rate used during macromolecular crystallography data collection

Biological Source:

Source Organism:

BOS TAURUS

PDB Version:

Deposition Date:

2005-07-29

Release Date:

2006-02-06

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

1.30 Å

R-Value Free:

0.14

R-Value Work:

0.10

R-Value Observed:

0.10

Space Group:

P 21 21 21

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Description:CATIONIC TRYPSIN
Chain IDs:A (auth: X)
Chain Length:243
Number of Molecules:1
Biological Source:BOS TAURUS

UniProt ID:P00760 Pfam ID:PF00089 EC:3.4.21.4

Ligand Molecules

BEN

GOL

SO4

Primary Citation

Is Radiation Damage Dependent on the Dose-Rate Used During Macromolecular Crystallography Data Collection?

Leiros, H.-K.S, Timmins, J, Ravelli, R.B.G, Mcsweeney, S.M.Show

Acta Crystallogr.,Sect.D 62 125 ? (2006)

PMID: 16421442 DOI: 10.1107/S0907444905033627

Abstact

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.

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Primary Citation of related structures