Proto-oncogene Raf-1 as an autoantigen in Meniere's disease.
The 28 kd protein extracted from the guinea pig inner ear membranous fraction, which reacted with sera from patients with Meniere's disease, has been subjected to microsequencing. Nineteen amino acids were obtained (IVQQFGFQRRASDDGKLTQ). A protein data bank search showed that this sequence corresponded to residues 41 to 60 of human Raf-1 protein. Sera from 16 of 27 patients with Meniere's disease showed reactivity to the recombinant purified glutathione-S-transferase-Raf-1 protein. These results support the hypothesis that a subgroup of patients who suffer from Meniere's disease, as well as some other kinds of autoimmune inner ear diseases, have an autoantibody against Raf-1 protein.
Cheng
K C
KC
Department of Medicine, University of Tennessee, Memphis 38163, USA.
Matsuoka
H
H
Lee
K M
KM
Kim
N
N
Krug
M S
MS
Kwon
S S
SS
Mora
M
M
Yoo
T J
TJ
D000595:Amino Acid Sequence; D000818:Animals; D001323:Autoantibodies / Q000097:blood* / Q000276:immunology*; D001324:Autoantigens / Q000737:chemistry / Q000235:genetics / Q000276:immunology*; D001327:Autoimmune Diseases / Q000097:blood* / Q000276:immunology*; D015153:Blotting, Western; D004591:Electrophoresis, Polyacrylamide Gel; D004797:Enzyme-Linked Immunosorbent Assay; D005260:Female; D006168:Guinea Pigs; D006801:Humans; D008575:Meniere Disease / Q000097:blood* / Q000276:immunology*; D008969:Molecular Sequence Data; D009154:Mutation; D000090063:Proto-Oncogene Mas; D019908:Proto-Oncogene Proteins c-raf / Q000737:chemistry / Q000235:genetics / Q000276:immunology*
D001323:Autoantibodies; D001324:Autoantigens; C000715470:MAS1 protein, human; D000090063:Proto-Oncogene Mas; D019908:Proto-Oncogene Proteins c-raf