Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2001-9-6
pubmed:abstractText
The type I interferon (IFN) family includes IFN-alpha, IFN-beta, IFN-pi, and IFN-tau. These molecules are clustered according to sequence homologies, use of the same cell surface receptor, and similar functions. IFN-alpha and IFN-beta have a globular structure composed of five a-helices. Their receptors, IFNAR1 and IFNAR2, belong to the class II cytokine receptor family for a-helical cytokines. Information about structure-function relationships between these and other IFNs is being provided by comparative sequence analysis, reference to a prototypic three-dimensional structure, analysis with monoclonal antibodies, construction of hybrid molecules and site directed mutagenesis. While much remains to be done, it should someday be possible to understand differences among IFNs in terms of how they interact with their corresponding receptors. Our recently identified IFN-like molecule, limitin, has weak sequence homology to IFN-alpha, IFN-beta, and IFN-omega and displays its biological functions through the same IFN-alpha/beta receptors. While limitin has antiproliferative, immunomodulatory, and antiviral effects like IFN-alpha and IFN-beta, it is unique in lacking influence on myeloid and erythroid progenitors. Further analysis of this functionally unique cytokine should be informative about complex IFN-receptor interactions. Furthermore, a human homologue or synthetic variant might be superior for clinical applications as an IFN without myelosuppressive properties.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
1359-6101
pubmed:author
pubmed:issnType
Print
pubmed:volume
12
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
337-48
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2001
pubmed:articleTitle
Type I interferons and limitin: a comparison of structures, receptors, and functions.
pubmed:affiliation
Department of Internal Medicine and Molecular Science, Graduate School of Medicine, Osaka University, 2-2 Yamada-oka, Suita City, Osaka 565-0871, Japan. oritani@imed2.med.osaka-u.ac.jp
pubmed:publicationType
Journal Article, Comparative Study, Research Support, U.S. Gov't, P.H.S., Review, Research Support, Non-U.S. Gov't