RECEPTOR-MEDIATED INTERNALIZATION OF FLUORESCENT CHEMOTACTIC PEPTIDE BY HUMAN-NEUTROPHILS

被引:171
作者
NIEDEL, JE [1 ]
KAHANE, I [1 ]
CUATRECASAS, P [1 ]
机构
[1] DUKE UNIV,MED CTR,DURHAM,NC 27710
关键词
D O I
10.1126/science.472759
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
Tetramethylrhodamine labeled N-formyl-Nle-Leu-Phe-Nle-Tyr-Lys is a potent chemoattractant for human neutrophils. Binding of this peptide to living neutrophils was observed by means of video intensification microscopy. At 37°C, diffuse membrane fluorescence was seen initially, followed by rapid aggregation and internalization of the fluorescent peptide. These processes are dependent on specific binding to the formyl peptide chemotactic receptor.
引用
收藏
页码:1412 / 1414
页数:3
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