Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
15
pubmed:dateCreated
1987-9-2
pubmed:abstractText
Human chronic myelogenous leukemia cell line K-562 expresses the bcr/c-abl fusion protein which is an active protein tyrosine kinase. Multiple tyrosine-phosphorylated proteins were detected in K-562 cells by immunoblotting with a high-affinity anti-phosphotyrosine antibody. When K-562 cells were induced with hemin to progress through the erythroid differentiation pathway, reduction in the levels of these tyrosine-phosphorylated proteins was observed. This reduction in tyrosine-phosphorylated proteins was not found in another chronic myelogenous leukemia cell line which could not be induced to differentiate by hemin. This and other observations established that the reduction in protein tyrosine phosphorylation is a specific differentiation response. The bcr/c-abl protein synthesis was reduced in hemin-treated K-562 cells. Thus, erythroid differentiation of K-562 cells reduces the level of the bcr/c-abl tyrosine kinase and the phosphotyrosine content of its substrate proteins.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0008-5472
pubmed:author
pubmed:issnType
Print
pubmed:day
1
pubmed:volume
47
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
4066-70
pubmed:dateRevised
2009-11-19
pubmed:meshHeading
pubmed:year
1987
pubmed:articleTitle
Reduction in protein tyrosine phosphorylation during differentiation of human leukemia cell line K-562.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, U.S. Gov't, Non-P.H.S., Research Support, Non-U.S. Gov't