期刊
ACTA CRYSTALLOGRAPHICA SECTION F-STRUCTURAL BIOLOGY COMMUNICATIONS
卷 66, 期 -, 页码 61-63出版社
INT UNION CRYSTALLOGRAPHY
DOI: 10.1107/S1744309109048817
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资金
- National Cancer Institute
- NIH [HHSN2612008000001E]
- NATIONAL CANCER INSTITUTE [ZIABC010348] Funding Source: NIH RePORTER
Human interferon-lambda 1 (IFN-lambda 1(Ins)) and the extracellular domain of interferon-lambda 1 receptor (IFN-lambda 1R1) were expressed in Drosophila S2 cells and purified to homogeneity. Both IFN-lambda 1(Ins) and interferon-lambda 1 produced from Escherichia coli (IFN-lambda 1(Bac)) were coupled with IFN-lambda 1R1 at room temperature and the complexes were purified by gel filtration. Both complexes were crystallized; the crystals were flash-frozen at 100 K and diffraction data were collected to 2.16 and 2.1 angstrom, respectively. Although the IFN-lambda 1(Bac)-IFN-lambda 1R1 and IFN-lambda 1(Ins)-IFN-lambda 1R1 complexes differed only in the nature of the expression system used for the ligand, their crystallization conditions and crystal forms were quite different. A search for heavy-atom derivatives as well as molecular-replacement trials are in progress.
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