Linked Life Data

8892091

Source:http://linkedlifedata.com/resource/pubmed/id/8892091

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
1997-3-14
pubmed:abstractText
Understanding the structural features of naturally processed peptides found within the major histocompatibility complex (MHC) class II peptide binding groove from disease-associated MHC molecules may provide insights into the nature of potential disease-related antigens. Class II MHC/peptide complexes were purified by immunoaffinity from transformed B cell lines homozygous for DRB1*0404 (an allele associated with rheumatoid arthritis) and *0402 (a closely related allele not associated with this disease). Peptides were eluted at acidic pH, fractionated by reversed phase HPLC, and analyzed by capillary electrophoresis. Those fractions containing a single dominant peptide were sequenced by automated Edman degradation and tandem mass spectrometry. The predominant peptide species identified came from non-polymorphic regions of the HLA class I molecules expressed by each cell line. Peptides from DRB1*0404 were found to be nested clusters derived from positions 26-43 of the HLA-B and -C alpha-chain. DRB1*0402 contained as the predominant peptide species a nested cluster from positions 129-145 of the HLA-B alpha-chain. The primary structure of the class I derived peptides was consistent with that seen by peptides exhibiting promiscuous DR binding behavior. Processing of MHC-derived peptides by MHC class II molecules is a common occurrence in the transformed B cell lines analyzed.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0360-4012
pubmed:author
pubmed:issnType
Print
pubmed:day
15
pubmed:volume
45
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
795-802
pubmed:dateRevised
2011-11-17
pubmed:meshHeading
pubmed:year
1996
pubmed:articleTitle
Analysis of naturally processed peptides eluted from HLA DRB1*0402 and *0404.
pubmed:affiliation
Department of Veterans Affairs Medical Center, Portland, OR 97207, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, Non-P.H.S., Research Support, Non-U.S. Gov't