6ybf

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RT structure of HEW Lysozyme obtained at 1.13 A resolution from crystal grown in a Kapton microchip.RT structure of HEW Lysozyme obtained at 1.13 A resolution from crystal grown in a Kapton microchip.

Structural highlights

6ybf is a 1 chain structure with sequence from Gallus gallus. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 1.13Å
Ligands:,
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

LYSC_CHICK Lysozymes have primarily a bacteriolytic function; those in tissues and body fluids are associated with the monocyte-macrophage system and enhance the activity of immunoagents. Has bacteriolytic activity against M.luteus.[1]

Publication Abstract from PubMed

Sample handling and manipulation for cryoprotection currently remain critical factors in X-ray structural determination. While several microchips for macromolecular crystallization have been proposed during the last two decades to partially overcome crystal-manipulation issues, increased background noise originating from the scattering of chip-fabrication materials has so far limited the attainable resolution of diffraction data. Here, the conception and use of low-cost, X-ray-transparent microchips for in situ crystallization and direct data collection, and structure determination at atomic resolution close to 1.0 A, is presented. The chips are fabricated by a combination of either OSTEMER and Kapton or OSTEMER and Mylar materials for the implementation of counter-diffusion crystallization experiments. Both materials produce a sufficiently low scattering background to permit atomic resolution diffraction data collection at room temperature and the generation of 3D structural models of the tested model proteins lysozyme, thaumatin and glucose isomerase. Although the high symmetry of the three model protein crystals produced almost complete data sets at high resolution, the potential of in-line data merging and scaling of the multiple crystals grown along the microfluidic channels is also presented and discussed.

Attaining atomic resolution from in situ data collection at room temperature using counter-diffusion-based low-cost microchips.,Gavira JA, Rodriguez-Ruiz I, Martinez-Rodriguez S, Basu S, Teychene S, McCarthy AA, Mueller-Dieckman C Acta Crystallogr D Struct Biol. 2020 Aug 1;76(Pt 8):751-758. doi:, 10.1107/S2059798320008475. Epub 2020 Jul 27. PMID:32744257[2]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

See Also

References

  1. Maehashi K, Matano M, Irisawa T, Uchino M, Kashiwagi Y, Watanabe T. Molecular characterization of goose- and chicken-type lysozymes in emu (Dromaius novaehollandiae): evidence for extremely low lysozyme levels in emu egg white. Gene. 2012 Jan 15;492(1):244-9. doi: 10.1016/j.gene.2011.10.021. Epub 2011 Oct, 25. PMID:22044478 doi:10.1016/j.gene.2011.10.021
  2. Gavira JA, Rodriguez-Ruiz I, Martinez-Rodriguez S, Basu S, Teychene S, McCarthy AA, Mueller-Dieckman C. Attaining atomic resolution from in situ data collection at room temperature using counter-diffusion-based low-cost microchips. Acta Crystallogr D Struct Biol. 2020 Aug 1;76(Pt 8):751-758. doi:, 10.1107/S2059798320008475. Epub 2020 Jul 27. PMID:32744257 doi:http://dx.doi.org/10.1107/S2059798320008475

6ybf, resolution 1.13Å

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