The Caenorhabditis elegans rop-1 gene encodes the homologue of the human 60-kDa Ro autoantigen

被引:14
|
作者
Labbe, JC [1 ]
Jannatipour, M [1 ]
Rokeach, LA [1 ]
机构
[1] UNIV MONTREAL,DEPT BIOCHIM,MONTREAL,PQ H3C 3J7,CANADA
关键词
epitopes; nematode; ribonucleoprotein; RNA-binding; SS-A; systemic lupus erythematosus;
D O I
10.1016/0378-1119(95)00695-8
中图分类号
Q3 [遗传学];
学科分类号
071007 ; 090102 ;
摘要
As a first step toward establishing a genetic system for the elucidation of the cellular role(s) of the Ro ribonucleoproteins (RoRNP), we have cloned the gene encoding the homologue of the human 60-kDa Ro protein (Ro60) in Caenorhabditis elegans (Ce). This Ce gene is present as a single copy and contains a 643-codon open reading frame interrupted by three introns. The encoded protein, Rop1p, shares 40% identity and 63% overall similarity with both the human and amphibian Ro60. Recombinant protein has been produced in Escherichia coli and used to elicit anti-Rop1p antibodies. Immunological analysis indicated that the Ro60 epitopes have been poorly conserved. Gene-fusion expression studies in transgenic nematodes will provide a new avenue of research to shed light on the function of these particles.
引用
收藏
页码:227 / 231
页数:5
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