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Title: Hitting the target: fragment screening with acoustic in situ co-crystallization of proteins plus fragment libraries on pin-mounted data-collection micromeshes

Journal Article · · Acta Crystallographica. Section D: Biological Crystallography (Online)
 [1];  [2];  [3];  [4];  [5];  [6];  [7];  [8];  [9];  [10];  [7];  [7];  [11];  [7];  [7]
  1. Brookhaven National Lab. (BNL), Upton, NY (United States). Office of Education Programs; Stony Brook Univ., NY (United States). Dept. of Biochemistry and Cell Biology; Nanjing Univ. (China)
  2. Brookhaven National Lab. (BNL), Upton, NY (United States). Office of Education Programs; Binghamton Univ., NY (United States). Dept. of Biological Sciences
  3. Brookhaven National Lab. (BNL), Upton, NY (United States). Office of Education Programs; Ministry of Education of Brazil, Brasilia (Brazil). CAPES Foundation; Universidade Federal de Minas Gerais, Belo Horizonte-MG (Brazil)
  4. Brookhaven National Lab. (BNL), Upton, NY (United States). Office of Education Programs; City Univ. of New York (CUNY), NY (United States). College of Staten Island. Dept. of Biology. Center for Developmental Neuroscience
  5. Brookhaven National Lab. (BNL), Upton, NY (United States). Office of Education Programs; St Joseph’s College, East Patchogue, NY (United States)
  6. Brookhaven National Lab. (BNL), Upton, NY (United States). Office of Education Programs; Univ. at Buffalo, NY (United States). Dept. of Biomedical Engineering
  7. Brookhaven National Lab. (BNL), Upton, NY (United States). Photon Sciences Directorate
  8. Brookhaven National Lab. (BNL), Upton, NY (United States). Office of Education Programs; Florida Atlantic Univ., Boca Raton, FL (United States). Dept. of Biological Science
  9. Brookhaven National Lab. (BNL), Upton, NY (United States). Office of Education Programs; Comsewogue High School, Port Jefferson Station, NY (United States)
  10. Brookhaven National Lab. (BNL), Upton, NY (United States). Biosciences Dept.
  11. Brookhaven National Lab. (BNL), Upton, NY (United States). Photon Sciences Directorate; Brookhaven National Lab. (BNL), Upton, NY (United States). Biosciences Dept.

Acoustic droplet ejection (ADE) is a powerful technology that supports crystallographic applications such as growing, improving and manipulating protein crystals. A fragment-screening strategy is described that uses ADE to co-crystallize proteins with fragment libraries directly on MiTeGen MicroMeshes. Co-crystallization trials can be prepared rapidly and economically. The high speed of specimen preparation and the low consumption of fragment and protein allow the use of individual rather than pooled fragments. The Echo 550 liquid-handling instrument (Labcyte Inc., Sunnyvale, California, USA) generates droplets with accurate trajectories, which allows multiple co-crystallization experiments to be discretely positioned on a single data-collection micromesh. This accuracy also allows all components to be transferred through small apertures. Consequently, the crystallization tray is in equilibrium with the reservoir before, during and after the transfer of protein, precipitant and fragment to the micromesh on which crystallization will occur. This strict control of the specimen environment means that the crystallography experiments remain identical as the working volumes are decreased from the few microlitres level to the few nanolitres level. Using this system, lysozyme, thermolysin, trypsin and stachydrine demethylase crystals were co-crystallized with a small 33-compound mini-library to search for fragment hits. This technology pushes towards a much faster, more automated and more flexible strategy for structure-based drug discovery using as little as 2.5 nl of each major component.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities Division
Grant/Contract Number:
SC0012704
OSTI ID:
1625713
Journal Information:
Acta Crystallographica. Section D: Biological Crystallography (Online), Vol. 70, Issue 5; ISSN 1399-0047
Publisher:
International Union of CrystallographyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 42 works
Citation information provided by
Web of Science

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Cited By (17)

Miniaturization and optimization of 384-well compatible metagenomic sequencing library preparation journal October 2018
Automated harvesting and processing of protein crystals through laser photoablation journal March 2016
Rapid approach to complex boronic acids journal July 2019
Miniaturization and optimization of 384-well compatible RNA sequencing library preparation journal January 2019
Using sound pulses to solve the crystal-harvesting bottleneck journal October 2018
Ultrasonic acoustic levitation for fast frame rate X-ray protein crystallography at room temperature journal May 2016
Strategies for sample delivery for femtosecond crystallography text January 2019
What’s happened over the last five years with high-throughput protein crystallization screening? journal April 2018
Strategies for sample delivery for femtosecond crystallography journal February 2019
Gentle, fast and effective crystal soaking by acoustic dispensing journal March 2017
On-chip crystallization for serial crystallography experiments and on-chip ligand-binding studies text January 2019
In meso in situ serial X-ray crystallography of soluble and membrane proteins journal May 2015
On-chip crystallization for serial crystallography experiments and on-chip ligand-binding studies journal June 2019
On-chip crystallization for serial crystallography experiments and on-chip ligand-binding studies text January 2019
Acoustic transfer of protein crystals from agarose pedestals to micromeshes for high-throughput screening journal January 2015
Co-crystallization and small molecule crystal form diversity: from pharmaceutical to materials applications journal January 2016
Automated Protocols for Macromolecular Crystallization at the MRC Laboratory of Molecular Biology journal January 2018

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