Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2006-3-28
pubmed:abstractText
Expression of key regulatory and tissue specific proteins necessary for myogenesis and adipogenesis are dependent on functional SWI/SNF enzymes that hydrolyze ATP to remodel chromatin and allow factors access to chromatinized DNA. Functional chromatin structural changes also can be facilitated by the high mobility group-N1 (HMGN1) protein. HMGN1 is a chromatin architectural protein that specifically interacts with nucleosomes and has been shown to facilitate the reversal of repressive chromatin structure, thereby making it more conducive for transcription. To determine if HMGN1 functions in myogenesis or adipogensis, two SWI/SNF-dependent processes, we used RNA interference to created stable cell lines with reduced HMGN1 protein levels and differentiated them along the myogenic and adipogenic pathways. We show that neither myogenesis nor adipogenesis was affected by reduced HMGN1 protein levels. We further demonstrate that HMGN1 levels naturally decrease as a function of contact-mediated cell cycle arrest, thereby explaining the lack of requirement for HMGN1 in these cellular differentiation processes.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0378-1119
pubmed:author
pubmed:issnType
Print
pubmed:day
12
pubmed:volume
371
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
59-67
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
2006
pubmed:articleTitle
HMGN1 is dispensable for myogenesis and adipogenesis.
pubmed:affiliation
Department of Cell Biology, University of Massachusetts Medical School, Department of Cell Biology, 55 Lake Avenue North, Worcester, MA 01655, USA.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't, Research Support, N.I.H., Extramural