Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1994-10-14
pubmed:abstractText
A double-stranded DNA-dependent protein serine/threonine kinase (DNA-PK) was purified from a nuclear extract of Raji Burkitt's lymphoma cells by a three-step column-chromatographic procedure. The main silver-stained band visualized after SDS/PAGE corresponded to an autophosphorylated polypeptide of about 350-kDa that represents the catalytic component. The existence of Ku DNA-binding protein as a regulatory component in the purified enzyme was revealed by Western blot/enzyme immunoassay and direct inhibition test with anti-Ku sera from the autoimmune patients. The DNA-PK catalyzed phosphorylation of synthetic peptides corresponding to Myc and RB proteins in a DNA-dependent manner, indicating that DNA-PK may recognize a second core-sequence motif Pro-Ser/Thr- in addition to the putative consensus sequences of -Ser/Thr-Gln. The level of enzyme activity was significantly higher in DMSO-induced G0/G1-arrested Raji cells as well as in the cells after release from DMSO than in the log-phase cells.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0006-3002
pubmed:author
pubmed:issnType
Print
pubmed:day
8
pubmed:volume
1223
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
255-60
pubmed:dateRevised
2009-11-19
pubmed:meshHeading
pubmed:year
1994
pubmed:articleTitle
Molecular properties, substrate specificity and regulation of DNA-dependent protein kinase from Raji Burkitt's lymphoma cells.
pubmed:affiliation
Department of Pathological Biochemistry, Tokyo Medical and Dental University, Japan.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't