NEUTROPHIL ACTIVATION BY MONOMERIC INTERLEUKIN-8

被引:277
作者
RAJARATHNAM, K
SYKES, BD
KAY, CM
DEWALD, B
GEISER, T
BAGGIOLINI, M
CLARKLEWIS, I
机构
[1] UNIV BRITISH COLUMBIA,DEPT BIOCHEM & MOLEC BIOL,BIOMED RES CTR,VANCOUVER V6T 1Z3,BC,CANADA
[2] UNIV ALBERTA,DEPT BIOCHEM,EDMONTON T6G 2S2,AB,CANADA
[3] UNIV BERN,THEODOR KOCHER INST,CH-3000 BERN,SWITZERLAND
[4] UNIV BRITISH COLUMBIA,PENCE,VANCOUVER V6T 1Z3,BC,CANADA
[5] UNIV ALBERTA,PROT ENGN NETWORK CTR EXCELLENCE,EDMONTON T6G 2S2,AB,CANADA
关键词
D O I
10.1126/science.8140420
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Interleukin-8 (IL-8), a pro-inflammatory protein, has been shown by nuclear magnetic resonance (NMR) and x-ray techniques to exist as a homodimer. An IL-8 analog was chemically synthesized, with the amide nitrogen of leucine-25 methylated to selectively block formation of hydrogen bonds between monomers.and thereby prevent dimerization. This analog was shown to be a monomer, as assessed by analytical ultracentrifugation and NMR. Nevertheless, it was equivalent to IL-8 in assays of neutrophil activation, which indicates that the monomer is a functional form of IL-8.
引用
收藏
页码:90 / 92
页数:3
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