Evidence map›Paper›PMID 22665786›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2012

Room temperature femtosecond X-ray diffraction of photosystem II microcrystals.

Jan Kern, Roberto Alonso-Mori, Julia Hellmich, Rosalie Tran, Johan Hattne, Hartawan Laksmono, Carina Glöckner, Nathaniel Echols, Raymond G Sierra, Jonas Sellberg and 26 more

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 62 papers.

0numbers the graph read from it
0cells of the map it votes in
62citing papers in PubMed
12.3field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

62 citing papers in PubMed, 165 citations in OpenAlex.

  1. Review
  2. Article
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  5. Review
  6. Article
  7. Article
  8. Effects of x-ray free-electron laser pulse intensity on the Mn KStructural dynamics (Melville, N.Y.) · 2021
    Article
  9. Water oxidation in photosystem II.Photosynthesis research · 2019
    Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. Review
  16. Article
  17. Article
  18. Article
  19. Review
  20. Review

2 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

36 authors at 9 institutions in 4 countries.

Jan KernPhysical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.
Roberto Alonso-Mori
Julia Hellmich
Rosalie Tran
Johan Hattne
Hartawan Laksmono
Carina Glöckner
Nathaniel Echols
Raymond G Sierra
Jonas Sellberg
Benedikt Lassalle-Kaiser
Richard J Gildea
Pieter Glatzel
Ralf W Grosse-Kunstleve
Matthew J Latimer
Trevor A McQueen
Dörte DiFiore
Alan R Fry
Marc Messerschmidt
Alan Miahnahri
Donald W Schafer
M Marvin Seibert
Dimosthenis Sokaras
Tsu-Chien Weng
Petrus H Zwart
William E White
Paul D Adams
Michael J Bogan
Sébastien Boutet
Garth J Williams
Johannes Messinger
Nicholas K Sauter
Athina Zouni
Uwe Bergmann
Junko Yano
Vittal K Yachandra
Lawrence Berkeley National Laboratory · USSLAC National Accelerator Laboratory · USLinac Coherent Light Source · USTechnische Universität Berlin · DEStanford Synchrotron Radiation Lightsource · USEuropean Synchrotron Radiation Facility · FRStanford University · USStockholm University · SEUmeå University · SE

Funding

PROJECT 5 - DUKE - STRUCTURE VALIDATION AND IMPROVEMENT FOR PROTEINS AND N. ACIDSP01GM063210 · NIGMS · UNIVERSITY OF CALIF-LAWRENC BERKELEY LAB · PI ADAMS, PAUL DAVID · 2001 to 2021
$33.5M
Taking Snapshots of the Water-Oxidation Reaction by the Mn4Ca Oxygen-Evolving Complex Using X-ray Crystallography and SpectroscopyR01GM055302 · NIGMS · UNIVERSITY OF CALIF-LAWRENC BERKELEY LAB · PI YACHANDRA, VITTAL · 1997 to 2022
$9.1M
Realizing New Horizons in X-ray Crystallography Data ProcessingR01GM095887 · NIGMS · UNIVERSITY OF CALIF-LAWRENC BERKELEY LAB · PI SAUTER, NICHOLAS K · 2011 to 2014
$1.5M
Structure and Function of the Mn Oxygen-Evolving ComplexR56GM055302 · NIGMS · UNIVERSITY OF CALIF-LAWRENC BERKELEY LAB · PI YACHANDRA, VITTAL · 2009 to 2009
$530k
NIGMS NIH HHS GM55302NIGMS NIH HHS P01 GM063210NIGMS NIH HHS R01 GM055302NIGMS NIH HHS R01 GM095887NIGMS NIH HHS R01-GM095887NIGMS NIH HHS R56 GM055302
6 · The paper itself

Abstract

Most of the dioxygen on earth is generated by the oxidation of water by photosystem II (PS II) using light from the sun. This light-driven, four-photon reaction is catalyzed by the Mn(4)CaO(5) cluster located at the lumenal side of PS II. Various X-ray studies have been carried out at cryogenic temperatures to understand the intermediate steps involved in the water oxidation mechanism. However, the necessity for collecting data at room temperature, especially for studying the transient steps during the O-O bond formation, requires the development of new methodologies. In this paper we report room temperature X-ray diffraction data of PS II microcrystals obtained using ultrashort (< 50 fs) 9 keV X-ray pulses from a hard X-ray free electron laser, namely the Linac Coherent Light Source. The results presented here demonstrate that the "probe before destroy" approach using an X-ray free electron laser works even for the highly-sensitive Mn(4)CaO(5) cluster in PS II at room temperature. We show that these data are comparable to those obtained in synchrotron radiation studies as seen by the similarities in the overall structure of the helices, the protein subunits and the location of the various cofactors. This work is, therefore, an important step toward future studies for resolving the structure of the Mn(4)CaO(5) cluster without any damage at room temperature, and of the reaction intermediates of PS II during O-O bond formation.

Indexed as

CatalysisCrystallizationCrystallography, X-RayModels, MolecularPhotosystem II Protein ComplexPhotosystem II Protein Complex

Identifiers

PMID22665786
PMCPMC3382516
OpenAlexW2137207121

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.