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. 1993 Dec;94(3):435–439. doi: 10.1111/j.1365-2249.1993.tb08214.x

The putative oncoprotein DEK, part of a chimera protein associated with acute myeloid leukaemia, is an autoantigen in juvenile rheumatoid arthritis.

H Sierakowska 1, K R Williams 1, I S Szer 1, W Szer 1
PMCID: PMC1534440  PMID: 8252804

Abstract

The 45-kD autoantigen associated with juvenile rheumatoid arthritis (JRA) has been isolated from HeLa cell nuclei and purified about 2500-fold to near homogeneity in a five-step chromatographic procedure. Purification of the antigen was monitored by immunoblot assays using a nearly monospecific anti-45-kD serum from a child with JRA. Tryptic peptide mapping and partial amino acid sequencing of the purified 45-kD antigen demonstrated its identity with the DEK protein. DEK is a 43-kD protein of unknown function expressed by the putative oncogene dek located on chromosome 6. As a result of a (6;9) translocation offociated with a rare subtype of acute myeloid leukaemia a chimeric protein containing most of DEK amino acids at the N-terminus is found in leukaemic cells (von Linden et al., Mol Cell Biol. 1992; 12: 1687-97). The 43-kD DEK was detected by immunoblotting with serum from a patient with JRA in a variety of rat tissues, and was most abundant in the spleen and in bone marrow.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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