6JXQ

Room temperature structure of lysozyme delivered in polyacrylamide by serial millisecond crystallography

Summary for 6JXQ

• Entry DOI: 10.2210/pdb6jxq/pdb
• Descriptor: Lysozyme C, CHLORIDE ION (3 entities in total)
• Functional Keywords: lysozyme, serial crystallography, polyacrylamide, pam, hydrolase
• Biological source: Gallus gallus (Chicken)
• Total number of polymer chains: 1
• Total formula weight: 16328.57

Authors

Nam, K.H. (deposition date: 2019-04-24, release date: 2019-05-15, Last modification date: 2024-11-06)

Primary citation

Park, S.Y.,Nam, K.H.
Sample delivery using viscous media, a syringe and a syringe pump for serial crystallography.
J.Synchrotron Radiat., 26:1815-1819, 2019

PubMed Abstract: Sample delivery using injectors is widely used in serial crystallography (SX) and has significantly contributed to the determination of crystal structures at room temperature. However, sophisticated injector nozzle fabrication methods and sample delivery operations have made it difficult for ordinary users to access the SX research. Herein, a simple and easily accessible sample delivery method for SX experiments is introduced, that uses a viscous medium, commercially available syringe and syringe pump. The syringe containing the lysozyme crystals embedded in lipidic cubic phase (LCP) or polyacrylamide (PAM) delivery media was connected to a needle having an inner diameter of 168 µm, after which it was installed on a syringe pump. By driving the syringe pump, the syringe plunger was pushed and the crystal sample was delivered to the X-ray beam position in a stable manner. Using this system, the room-temperature crystal structures of lysozyme embedded in LCP and PAM at 1.56 Å and 1.75 Å, respectively, were determined. This straightforward syringe pump-based sample delivery system can be utilized in SX.

PubMed: 31490174
DOI: 10.1107/S160057751900897X

Experimental method

X-RAY DIFFRACTION (1.76 Å)