Preprint

·2022 OPEN ACCESS

Rapid and Efficient Ambient Temperature X-ray Crystal Structure Determination at Turkish Light Source

Mehmet Gül , Esra Ayan , Ebru Destan , J Austin Johnson , Alaleh Shafiei , Abdullah Kepçeoğlu , Merve Yilmaz , Fatma Betül Ertem , İlkin Yapici , Bilge Tosun ,

bioRxiv (Cold Spring Harbor Laboratory)

Abstract

ABSTRACT High-resolution biomacromolecular structure determination is essential to better understand protein function and dynamics. Serial crystallography is an emerging structural biology technique which has fundamental limitations due to either sample volume requirements or immediate access to the competitive X-ray beamtime. Obtaining a high volume of well-diffracting, sufficient-size crystals while mitigating radiation damage remains a critical bottleneck of serial crystallography. As an alternative, we introduce the plate-reader module adapted for using a 72-well Terasaki plate for biomacromolecule structure determination at a convenience of a home X-ray source. We also present the first ambient temperature lysozyme structure determined at the Turkish Light Source ( Turkish DeLight ). The complete dataset was collected in 18.5 mins with resolution extending to 2.39 Å and 100% completeness. Combined with our previous cryogenic structure (PDB ID: 7Y6A), the ambient temperature structure provides invaluable information about the structural dynamics of the lysozyme. Turkish DeLight provides robust and rapid ambient temperature biomacromolecular structure determination with limited radiation damage.

Keywords

Crystallography Radiation Lysozyme Turkish Materials science Optics Physics Chemistry

Subject Areas

Enzyme Structure and Function ·Materials Chemistry ·Physical Sciences
Protein Structure and Dynamics ·Molecular Biology ·Life Sciences
Biochemical and Molecular Research ·Molecular Biology ·Life Sciences

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