6TRW

Crystal structure of DPP8 in complex with the EIL peptide (SLRFLFEGQRIADNH)

6TRW の概要

• エントリーDOI: 10.2210/pdb6trw/pdb
• 分子名称: Dipeptidyl peptidase 8, SER-LEU-ARG-PHE-LEU-PHE-GLU-GLY-GLN-ARG, SODIUM ION, ... (4 entities in total)
• 機能のキーワード: eil peptide, dpp8, sumo1, hydrolase
• 由来する生物種: Homo sapiens (Human); 詳細
• タンパク質・核酸の鎖数: 6
• 化学式量合計: 317147.44

構造登録者

Ross, B.,Huber, R. (登録日: 2019-12-19, 公開日: 2021-01-13, 最終更新日: 2024-01-24)

主引用文献

Ross, B.,Krapp, S.,Geiss-Friedlander, R.,Littmann, W.,Huber, R.,Kiefersauer, R.
Aerosol-based ligand soaking of reservoir-free protein crystals.
J.Appl.Crystallogr., 54:895-902, 2021

PubMed Abstract: Soaking of macromolecular crystals allows the formation of complexes via diffusion of molecules into a preformed crystal for structural analysis. Soaking offers various advantages over co-crystallization, small samples and high-throughput experimentation. However, this method has disadvantages, such as inducing mechanical stress on crystals and reduced success rate caused by low affinity/solubility of the ligand. To bypass these issues, the Picodropper was previously developed in the authors' laboratory. This technique aimed to deliver small volumes of compound solution in response to crystal dehydration supported by the Free Mounting System humidity control or by IR-laser-induced protein crystal transformation. Herein, a new related soaking development, the Aerosol-Generator, is introduced. This device delivers compounds onto the solution-free surface of protein crystals using an ultrasonic technique. The produced aerosol stream enables an easier and more accurate control of solution volumes, reduced crystal handling, and crystal-size-independent soaking. The Aerosol-Generator has been used to produce complexes of DPP8 crystals, where otherwise regular soaking did not achieve complex formation. These results demonstrate the potential of this device in challenging ligand-binding scenarios and contribute to further understanding of DPP8 inhibitor binding.

PubMed: 34188616
DOI: 10.1107/S1600576721003551

実験手法

X-RAY DIFFRACTION (3 Å)