4.0 Article

Crystallization and preliminary X-ray diffraction analysis of human IL-22 bound to its soluble decoy receptor IL-22BP

Publisher

INT UNION CRYSTALLOGRAPHY
DOI: 10.1107/S1744309108042309

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Funding

  1. FAPESP [06/00182-8, 06/01534-5, 06/60860-0, 04/08070-9]
  2. CNPq [154559/2006-7]
  3. Belgian Programme on Interuniversity Poles of Attraction initiated by the Belgian State, Prime Minister's Office, Science Policy Programming
  4. Actions de Recherche Concertees of the Communaute Francaise de Belgique
  5. Operation Televie
  6. Fonds National de la Recherche Scientifique, Belgium
  7. Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP) [06/01534-5, 06/00182-8] Funding Source: FAPESP

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Interleukin-22 (IL-22) is a pleiotropic cytokine that is involved in inflammatory responses. Human IL-22 was incubated with its soluble decoy receptor IL-22BP (IL-22 binding protein) and the IL-22 -IL-22BP complex was crystallized in hanging drops using the vapour-diffusion method. Suitable crystals were obtained from polyethylene glycol solutions and diffraction data were collected to 2.75 angstrom resolution. The crystal belonged to the tetragonal space group P41, with unit-cell parameters a = b = 67.9, c = 172.5 angstrom, and contained two IL-22-IL- 22BP complexes per asymmetric unit.

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