Crystallization for Academic, Government, and Not-for-Profit Institutes
Academic, government, and non-profit research institute users are enabled by NIH R24 GM124135 (all samples) and NSF 2029943 (for SARS-CoV-2 samples), as well as generous historical support from NIH. Industry users should make use of our alternate screening pathway. Samples are screened against 1,536 different crystallization conditions. For the soluble screen, the assay includes an incomplete factorial based PEG/Salt/Buffer screen (688 cocktails) and chemically complementary screens purchased from Hampton Research which includes: Crystal Screen HT, Index, PEGRx HT, SaltRx HT, PEG/Ion HT, Slice pH, Ionic liquid, Polymer Screen, Silver-bullets, and others (848 cocktails). The membrane screen, samples regions of detergent phase space particularly relevant to crystallization (1344 cocktails) with the Hampton Research PEGRx screen (96 cocktails), and the Molecular Dimensions MemGold screen (96 cocktails). Typically the experimental error for delivery of cocktails and/or protein is < 5% (most often the error is < 1%) and we use control experiments to rapidly identify and address any issues that arise.
Subsidized costs: Our academic, government and non-profit services are subsidized by NIH and NSF. Fee-for-service is $400 per experimental screen (billed after sample setup). Users are provided with all images, metadata and software to review their crystallization screening images.
Sample requirement: Currently, we require 375 μl of protein sample in a labeled 1.5 ml microcentrifuge tube to set up the full 1536 microassay plate. We recommend that you send only high purity, non-aggregated, stable samples including all chemicals required for stability. To ensure that the crystallization conditions dominate use low (<25mM) buffer concentration. Avoid phosphate buffer (which forms insoluble salts). A recommended concentration is 10 mg/ml where solubility permits but both lower and significantly higher concentrations have proved successful. We do not recommend lyophilizing your protein.
The steps to make use of the Crystallization Center
1. Make a reservation
Crystallization Screening is run with monthly deadlines and dates. To reserve a spot in the crystallization screening queue, please check those dates and email htslab@hwi.buffalo.edu by the reservation deadline.
Include the following information in your reservation email:
- User name and contact information
- PI/Institution name and contact information
- Number of samples you will be sending
- Approximate date you will be shipping the sample(s)
You will receive an email confirmation from us for your reservation.
2. Fill out and submit an online submission form
Click on “Submission Form” to fill this out with contact details, sample information, and payment. A pdf copy will be generated. A copy of this should be sent with the sample.
3. Ship your sample
Please include the pdf form generated when the submission form is filled out. Samples should be shipped in a clearly labeled 1.5 mL tube placed inside of a protective container. Ensure the tube is sealed and protected against any potential leaks. An insulated Styrofoam shipping container is recommended with dry ice for frozen samples or gel packs to maintain sample temperature.
We recommend shipping overnight Monday – Wednesday to reduce risk of a weekend delivery delay.
When you ship the package, please send an email with the tracking number to htslab@hwi.buffalo.edu.
Shipping address:
National Crystallization Center
Hauptman-Woodward Medical Research Institute
700 Ellicott Street
Buffalo, NY 14203-1102, USA
p: +1 716-898-8649
Deadlines and Dates
Updated 12/2/2024
The National Crystallization Center is active and able to support your crystallization efforts. We are happy to announce the upcoming runs for crystallization in December, January & February. Interested in a membrane screen? Send us an email at htslab@hwi.buffalo.edu!
December 2024 Soluble (taking reservations)
- Reservation Deadline: Fri Dec 6th
- Package Acceptance & Plate Setup:
- Tues Dec 10th – Thurs Dec 12th
- Mon Dec 16th – Thurs Dec 19th
- Tues Dec 10th – Thurs Dec 12th
January 2025 Soluble (taking reservations)
- Reservation Deadline: Fri Jan 10th
- Package Acceptance & Plate Setup:
- Tues Jan 14th – Thurs Jan 16th
- Tues Jan 21st – Thurs Jan 23rd
- Tues Jan 14th – Thurs Jan 16th
February 2025 Soluble (taking reservations)
- Reservation Deadline: Fri Feb 7th
- Package Acceptance & Plate Setup:
- Tues Feb 11th – Thurs Feb 13th
- Mon Feb 17th – Thurs Feb 20th
- Tues Feb 11th – Thurs Feb 13th
Notes: Samples are not set up on Fridays. Monday Jan 20 is a holiday so samples will not be set up.
What you get:
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1,536 microbatch-under-oil crystallization screening experiments set up with your sample.
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Email notification and access to brightfield images of your experimental outcomes as they are recorded:
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cocktail only prior to adding sample (control)
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day 1
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weeks 1, 2, 3, 4 & 6
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Email notification and access to images from a Formulatrix Rock Imager 1000 SHG (to identify chiral crystals) and UV-TPEF (to determine if crystals are biological).
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These images are taken either at ~4 weeks (23°C samples) or ~6 weeks (4°C or 14°C samples) – you choose the protocol.
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Actual read time may vary slightly and is dependent upon the availability of the system.
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A total of nine sets of images recorded over the 6 week experimental duration.
- MARCO Polo software (python-base, multi-platform) to autoscore, view, annotate, and analyze images.
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MacroScopeJ software (Java-based, multi-platform) to view, annotate, and analyze images as well as associated chemical data.
Typically the experimental error for delivery of cocktails and/or protein is < 5% (most often the error is < 1%) and we use control experiments to rapidly identify and address any issues that arise.
Other information
Our philosophy: We provide capabilities at the highest standards for quality, reliability, efficiency, and productivity while providing confidentiality and expert support for challenging experiments. We want you to be successful and help that by providing cost-effective access to world-class research capabilities and maintaining competitiveness.
Confidentiality: Information will not be publicly disclosed regarding any sample received for crystallization trials without the express written consent of the investigator(s). Crystallization images obtained at the Crystallization Center for academic, government, and non-profit laboratories may be used to support the scientific research of the Center, as well as in publications. Images will be de-identified from sample and user information unless the consent of the investigator is obtained.
Acknowledgments: Your use of the Crystallization Center is supported by federal funding. If the Center assists you in identifying initial crystallization conditions, we request that the NIH R24 National Resource grant is acknowledged in any publications. We suggest the following language: Crystallization screening at the National Crystallization Center at HWI was supported through NIH grant R24GM141256.
Additionally, it would be helpful if the experimental methods references the Crystallization Center using one of the updated references for the soluble and membrane screens.
- Lynch, ML, Snell, ME, Potter, SA, Snell, EH & Bowman, SEJ (2023). 20 years of crystal hits: progress and promise in ultrahigh-throughput crystallization screening. Acta Cryst. D79, 198-205.
- Budziszewski, GR, Snell, ME, Wright, TR, Lynch, ML & Bowman, SEJ (2023). High-Throughput Screening to Obtain Crystal Hits for Protein Crystallography. J. Vis. Exp. (193), e65211.
These citations help us to track publications and PDB depositions, an important metric of productivity that will help secure future funding for the Crystallization Center.
Mailing-list: We like to keep users up to date with new developments, e.g. improved cocktails, analysis software, etc. If you would like to sign up for our mailing list to these notifications, please send a blank message to the following address: Announcements-subscribe@chtsb.org.
Special requirements: We can often accommodate special requirements, please contact us at htscenter@hwi.buffalo.edu. We are also open to collaborative studies to enhance crystallization success.
Physical Address
National High-Throughput Crystallization Center
Hauptman-Woodward Medical Research Institute
700 Ellicott Street
Buffalo, NY 14203
Contact
General Inquiries: htslab@hwi.buffalo
Crystallization Center Director (Dr. Sarah EJ Bowman): sbowman@hwi.buffalo.edu