Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1994-9-29
pubmed:abstractText
The 90-kDa nucleolus organizer region autoantigen (NOR-90) was previously shown to be identical to the human upstream binding factor (hUBF) and composed of two Mr forms. In this study, thirteen human anti-NOR-90/hUBF autoimmune sera were used to further characterize NOR-90/hUBF and its associated autoantigens. Nucleolar and nucleoplasmic staining of interphase cells and NOR staining in mitosis were observed with all sera by immunofluorescence. All sera showed equal reactivity with both high and low Mr forms in Western blotting and immunoprecipitation, suggesting that the cellular content and distribution for both Mr forms were approximately equal. Using extracts of [35S]methionine- and [32P]orthophosphate-labeled cells, phosphorylated and nonphosphorylated NOR-90/hUBF were identified for both Mr forms and these two populations were recognized by human autoantibodies. In immunoprecipitation analyses, the nonphosphorylated population was readily extracted while the phosphorylated population was tightly bound. Clinical data were available for 8 patients in whom anti-NOR-90/hUBF autoantibodies were present. They had diverse diagnoses including SLE, rheumatoid arthritis and malignancies. Although only one patient was diagnosed as scleroderma, Raynaud's phenomenon was observed in 4 of the 8 patients. Interestingly, one NOR-90/hUBF serum was shown to contain additional antibodies to RNA polymerases I and II.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0301-4851
pubmed:author
pubmed:issnType
Print
pubmed:volume
19
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
115-24
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed-meshheading:8072492-Adult, pubmed-meshheading:8072492-Aged, pubmed-meshheading:8072492-Arthritis, Rheumatoid, pubmed-meshheading:8072492-Autoantibodies, pubmed-meshheading:8072492-Autoantigens, pubmed-meshheading:8072492-Autoimmune Diseases, pubmed-meshheading:8072492-Autoimmunity, pubmed-meshheading:8072492-DNA-Binding Proteins, pubmed-meshheading:8072492-Female, pubmed-meshheading:8072492-Humans, pubmed-meshheading:8072492-Immunohistochemistry, pubmed-meshheading:8072492-Lupus Erythematosus, Systemic, pubmed-meshheading:8072492-Male, pubmed-meshheading:8072492-Middle Aged, pubmed-meshheading:8072492-Neoplasms, pubmed-meshheading:8072492-Nucleolus Organizer Region, pubmed-meshheading:8072492-Pol1 Transcription Initiation Complex Proteins, pubmed-meshheading:8072492-Scleroderma, Systemic, pubmed-meshheading:8072492-Transcription Factors
pubmed:year
1994
pubmed:articleTitle
Immunocytochemical characterization of human NOR-90 (upstream binding factor) and associated antigens reactive with autoimmune sera. Two MR forms of NOR-90/hUBF autoantigens.
pubmed:affiliation
W. M. Keck Autoimmune Disease Center, Scripps Research Institute, La Jolla, CA 92037.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, U.S. Gov't, P.H.S.