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Biochem Biophys Res Commun. 1990 May 16;168(3):1103-9.

Synthesis and use of a novel N-formyl peptide derivative to isolate a human N-formyl peptide receptor cDNA.

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Département de Recherche Fondamentale, Centre d'Etude, Nucléaires, Grenoble, France.


N-formyl-methionyl peptides are powerful chemoattractants which bind to specific receptors on the neutrophil plasma membrane. A cDNA library from HL-60 cells, differentiated into granulocytes highly responsive to N-formyl-methionyl peptides, was constructed in the COS cell expression vector CDM8. A cDNA clone was isolated that conferred to COS cells the ability to bind a new and highly efficient hydrophilic derivative of N-formyl-Met-Leu-Phe-Lys. The transfected COS cells displayed two classes of binding sites with Kd values of 0.5-1 nM and 5-10 nM, respectively. The cDNA was 1.9 kb long with a 1050 bp open reading frame encoding a 350 residue protein. The hydropathy plot analysis revealed seven hydrophobic segments, a pattern quite similar to that of G protein-coupled receptors.

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