The putative oncoprotein DEK, part of a chimera protein associated with acute myeloid leukaemia, is an autoantigen in juvenile rheumatoid arthritis.
Clin Exp Immunol
; 94(3): 435-9, 1993 Dec.
Article
em En
| MEDLINE
| ID: mdl-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.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Artrite Juvenil
/
Autoantígenos
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Proteínas Cromossômicas não Histona
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Leucemia Mieloide
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Proteínas Oncogênicas
Tipo de estudo:
Risk_factors_studies
Limite:
Animals
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Child, preschool
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Humans
Idioma:
En
Ano de publicação:
1993
Tipo de documento:
Article