Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1993-10-22
pubmed:abstractText
Oncostatin M (OSM) and leukemia inhibitory factor (LIF) are members of a family of cytokines that regulate the proliferation and differentiation of a variety of cell types. In this report, cDNA probes specific for OSM and LIF were hybridized to DNA from somatic cell hybrids containing defined regions of human chromosome 22, and the gene for human OSM was found to segregate with that of LIF. Southern analysis of high-molecular-weight DNA that had been digested with rare-cutting restriction enzymes and analyzed by pulsed-field gel electrophoresis showed identical hybridization patterns with both probes. The probes also identified common cosmid clones on high-density cosmid filters prepared from chromosome 22-specific flow-sorted cosmid libraries. Restriction and Southern analyses of six cosmid clones established a contig of approximately 100 kb surrounding the genes for OSM and LIF. The OSM and LIF genes are tandemly arranged in the same transcriptional orientation separated by approximately 10 kb. The direction of gene transcription is telomeric to centromeric, with the OSM gene located upstream of the LIF gene. Our studies define a new gene cluster on chromosome 22 and provide strong evidence that OSM and LIF have resulted from duplication of a common ancestral gene.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
0888-7543
pubmed:author
pubmed:issnType
Print
pubmed:volume
17
pubmed:geneSymbol
LIF, SOM
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
136-40
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1993
pubmed:articleTitle
The genes for oncostatin M (OSM) and leukemia inhibitory factor (LIF) are tightly linked on human chromosome 22.
pubmed:affiliation
Fred Hutchinson Cancer Research Center, Seattle, Washington 98104.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't