Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
9
pubmed:dateCreated
2006-7-17
pubmed:abstractText
STAT5 is constitutively phosphorylated in leukemic cells in approximately 70% of acute myeloid leukemia (AML) patients. To identify kinase candidates potentially responsible for STAT5 phosphorylation, we used liquid chromatography-tandem mass spectrometry (LC-MS/MS) mass spectrometry to detect phosphoproteins in AML cell lines. We established TEL-ARG and BCR-ABL fusion proteins as the mechanism underlying STAT5 phosphorylation in HT-93 and KBM-3 cells, respectively. In addition, we identified a JAK2 pseudokinase domain mutation in HEL cells and using siRNA downregulation, established JAK2 as the kinase responsible for phosphorylating STAT5. This study illustrates the benefit of LC-MS/MS mass spectrometry and siRNA for the identification of novel targets and mutations.
pubmed:commentsCorrections
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0145-2126
pubmed:author
pubmed:issnType
Print
pubmed:volume
30
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1097-104
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
2006
pubmed:articleTitle
Phosphoproteomic analysis of AML cell lines identifies leukemic oncogenes.
pubmed:affiliation
Department of Hematology and Oncology, Howard Hughes Medical Institute, Oregon Health and Science University Cancer Institute, 3181 Sam Jackson Park Road, and Portland VA Medical Center, Portland, OR 97239, USA. waltersd@ohsu.edu
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't