Structural and biophysical studies of the human IL-7/IL-7Ralpha complex.
Structural and biophysical studies of the human IL-7/IL-7Ralpha complex.
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DOI:
10.1016/j.str.2008.10.019
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发表时间:
2009-01-14
期刊:
影响因子:
--
通讯作者:
Walsh ST
中科院分区:
文献类型:
--
作者:
McElroy CA;Dohm JA;Walsh ST
IL-7 and IL-7Rα bind the γc receptor forming a complex crucial to several signaling cascades leading to the development and homeostasis of T and B cells. We report the IL-7Rα ectodomain uses glycosylation to modulate its binding constants to IL-7, unlike the other receptors in the γc family. IL-7 binds glycosylated IL-7Rα 300-fold more tightly than unglycosylated IL-7Rα, and the enhanced affinity is attributed primarily to an accelerated on-rate. Structural comparison of IL-7 in complex to both forms of the IL-7Rα reveals that glycosylation does not participate directly in the binding interface. The SCID mutations of the IL-7Rα locate outside the binding interface with IL-7 suggesting that the expressed mutations cause protein folding defects in IL-7Rα. The IL-7/IL-7Rα structures provide the first view into the molecular recognition events of the IL-7 signaling cascade and provide sites to target for designing new therapeutics to treat IL-7 related diseases.
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DOI:
10.1107/s0907444904019158
发表时间:
2004-12-01
影响因子:
2.2
作者:
Emsley, P;Cowtan, K
通讯作者:
Cowtan, K
DOI:
10.1107/s0907444901012458
发表时间:
2001-10-01
影响因子:
2.2
作者:
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通讯作者:
Bouzida, D
影响因子:
2.9
作者:
Darling, RJ;Kuchibhotla, U;Beals, JM
通讯作者:
Beals, JM
影响因子:
4.8
作者:
Mimura, Y;Sondermann, P;Jefferis, R
通讯作者:
Jefferis, R
影响因子:
14.9
作者:
Davis IW;Leaver-Fay A;Chen VB;Block JN;Kapral GJ;Wang X;Murray LW;Arendall WB 3rd;Snoeyink J;Richardson JS;Richardson DC
通讯作者:
Richardson DC