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Biochem Biophys Res Commun. 2001 Jan 12;280(1):407-14.

Murine and human SDF2L1 is an endoplasmic reticulum stress-inducible gene and encodes a new member of the Pmt/rt protein family.

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1
Second Department of Surgery, Department of Urology, Hiroshima University School of Medicine, 1-2-3, Kasumi, Minami-ku, Hiroshima 734-0037, Japan.

Abstract

We isolated murine and human cDNAs for SDF2L1 (stromal cell-derived factor 2-like1) and characterized the genomic structures. Northern blot analysis of the gene expression in various tissues revealed that both murine Sdf2l1 and human SDF2L1 genes are expressed ubiquitously, with particularly high expression in the testis. The SDF2L1 protein has an endoplasmic reticulum (ER)-retention-like motif, HDEL, at the carboxy (C)-terminus. Interestingly, SDF2L1 protein also shows significant similarity to the central hydrophilic part of protein O-mannosyltransferase (Pmt) proteins of Saccharomyces cerevisiae, the human homologues of Pmt (POMT1 and POMT2) and Drosophila melanogaster rotated abdomen (rt) protein. In a murine hepatocellular carcinoma cell line, Sdf2l1 was strongly induced by tunicamycin and a calcium ionophore, A23187, and weakly induced by heat stress but was not induced by cycloheximide. In conclusion, SDF2L1 protein is a new member of Pmt/rt protein family and Sdf2l1 is a new ER stress-inducible gene.

PMID:
11162531
DOI:
10.1006/bbrc.2000.4111
[Indexed for MEDLINE]
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