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Biochem Biophys Res Commun. 2003 Jun 13;305(4):981-8.

Synleurin, a novel leucine-rich repeat protein that increases the intensity of pleiotropic cytokine responses.

Author information

1
Human Genome Sciences, Inc., 9410 Key West Avenue, Rockville, MD 20850, USA.

Abstract

We have identified and characterized a novel single span transmembrane leucine-rich repeat protein, synleurin, that renders cells highly sensitive to the activation by cytokines and lipopolysaccharide (LPS). The major part of the extracellular domain consists of a leucine-rich repeats (LRR) cassette. The LRR central core has 12 analogous LRR repeating modules arranged in a seamless tandem array. The LRRs are most homologous to that of chondroadherin, insulin-like growth factor binding proteins, platelet glycoprotein V, slits, and toll-like receptors. Synleurin expression was detected at low levels in many tissues, including smooth muscle, brain, uterus, pancreas, cartilage, adipose, spleen, and testis. When synleurin is ecotopically expressed in transfected cells, the cells exhibit amplified responses to bFGF, EGF, PDGF-B, IGF-1, IGF-2, and LPS. Synleurin gene (slrn) maps to human chromosome at 5q12. The name synleurin reflects its synergistic effect on cytokine stimulation and its prominent leucine-rich repeats.

PMID:
12767927
DOI:
10.1016/s0006-291x(03)00876-3
[Indexed for MEDLINE]

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