Welcome to HitGen

Capabilities

One-stop Technology Platform to Accelerate Drug Discovery and Development

  1. Capabilities
  2. Crystallization/Co-crystallization

Crystallization/Co-crystallization

HitGen has the in-house expertise and automatic equipment to undertake high-throughput screening of thousands of crystallization conditions, and through world-class synchrotron facilities, such as the SSRF (Shanghai, China), and the Spring-8 synchrotron radiation facility (Hyogo, Japan), we can collect high-resolution structural datasets for apo or ligand-bound target proteins. The data are processed by our experts, and the solved the structures will be presented in a variety of formats suitable for computational modelling.

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General crystallography process

Step1: Crystallization screening (to identify the conditions for crystal growth) 

  • Initial screening will be set up to 1000-2000 conditions at different temperatures, using our high throughput nanoliter dispensing robot (Mosquito® LCP), saving time and making efficient use of precious samples. 

  • Automated imaging for crystal evaluation (UVEX-ps256, Jansi)

  • Daily diffraction experiment is performed on in home lab x-ray sources (Bruker D8 VENTURE with METAJET and CPAD


Step2: Crystallization optimization (by multi-dimensions for optimal crystal conditions)

  • Correlation of images & experimental setup (database)

  • Reproduction and multi-dimensional optimization of crystal conditions 

  • Crystals from coarse matrix screens are optimized using fine screens, additives, and seeding


Step 3: Crystal Structure Determination

  • Co-crystallization with ligands (mainly small molecule compounds from DEL screening or clients’ compounds) or soaking them in the apo protein crystals will be performed prior to data collection;

  • X-ray data collection is mainly performed on a monthly schedule at the industrial synchrotron beamlines (SSRF or Spring-8), ensuring the highest resolution for the crystal structure.

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