Crystallization and preliminary X-ray crystallographic study of the extracellular domain of the 4-1BB ligand, a member of the TNF family

Jung Sue Byun, Dong Uk Kim, Byungchan Ahn, Byoung Se Kwon, Hyun Soo Cho

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2 Citations (Scopus)

Abstract

The 4-1BB ligand, a member of the tumour necrosis factor (TNF) family, is an important co-stimulatory molecule that plays a key role in the clonal expansion and survival of CD8+ T cells. Signalling through binding of the 4-1BB ligand and 4-1BB has been reported to enhance CD8+ T-cell expansion and protect activated CD8+ T cells from death. The 4-1BB ligand is an integral protein expressed on activated antigen-presenting cells. The extracellular domain of the 4-1BB ligand fused with glutathione-S-transferase was expressed in Escherichia coli (Origami) and purified by using affinity and ion-exchange column chromatographic methods. Crystals of the 4-1BB ligand were obtained at 290 K by the hanging-drop vapour-diffusion method. X-ray diffraction data were collected from these crystals to 2.8 Å resolution and the crystals belong to space group C2, with unit-cell parameters a = 114.6, b = 73.8, c = 118.50 Å, β = 115.5°.

Original languageEnglish
Pages (from-to)23-25
Number of pages3
JournalActa Crystallographica Section F: Structural Biology and Crystallization Communications
Volume62
Issue number1
DOIs
Publication statusPublished - 2006 Apr 1

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All Science Journal Classification (ASJC) codes

  • Biophysics
  • Structural Biology
  • Biochemistry
  • Genetics
  • Condensed Matter Physics

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