Mutants of Interleukin 13 with Altered Reactivity toward Interleukin 13 Receptors
نویسندگان
چکیده
منابع مشابه
Mutants of interleukin 13 with altered reactivity toward interleukin 13 receptors.
Interleukin 13 (IL13) belongs to a family of cytokines whose members exhibit structural homology, despite amino acid sequence dissimilarity. For example, while of limited sequence homology, IL13 and IL4 share a signaling receptor, IL13/4 receptor, on a variety of human normal cells. However, a subclass of IL4-independent IL13 receptors is overexpressed on certain transformed cells, including hu...
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Interleukin 13 (IL13) binds a receptor that is highly overexpressed in malignant gliomas, IL13Ralpha2. IL13 protein is composed of four helices: alpha-helix A, B, C, and D, and we found a new "hot spot" in alpha-helix D that is crucial for the binding of IL13 to IL13Ralpha2. Lys-105 plus Lys-106 and Arg-109 represent this hot spot. In the current study, we have made substitutions at these three...
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BACKGROUND Interleukin (IL) 13, a type 2 helper T cell (T(H)2), is an important regulator of inflammatory immune responses. It mediates its action through a receptor complex consisting of IL-13Ralpha1 and IL-4Ralpha. IL-13Ralpha2 binds IL-13 with high affinity and is thought to act primarily as a decoy receptor, sequestering IL-13 and thus inhibiting its action. Our aim was to clarify the role ...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1999
ISSN: 0021-9258
DOI: 10.1074/jbc.274.42.29944