Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:dateCreated
1984-7-9
pubmed:abstractText
Protein factors have been isolated from HeLa cells and from calf thymus which are able to specifically stimulate DNA polymerase alpha in vitro on templates which mimic the replication fork. One factor, extracted from HeLa cells, is an enzymatic complex of about 100-110 Kdal composed of a DNA-dependent ATPase and of an as yet uncharacterized DNA-binding protein. This complex exhibits a limited "helicase" activity on DNA : DNA partial duplexes which probably accounts for the stimulation of DNA polymerase alpha. The other stimulatory factor is obtained from calf thymus. They are the so-called single-stranded DNA binding proteins (DBP) which have a duplex-destabilizing activity. These proteins appear to be heterogeneous with regard to both physical properties (Mr and pI) and functional characteristics (DNA polymerase alpha stimulation, duplex denaturation). The origin and the biological significance of the different molecular forms are discussed.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0015-5500
pubmed:author
pubmed:issnType
Print
pubmed:volume
30 Spec No
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
83-92
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1984
pubmed:articleTitle
DNA polymerase accessory proteins in mammalian cells.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't