Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2009-11-16
pubmed:abstractText
TGF-beta and BMP receptor kinases activate Smad transcription factors by C-terminal phosphorylation. We have identified a subsequent agonist-induced phosphorylation that plays a central dual role in Smad transcriptional activation and turnover. As receptor-activated Smads form transcriptional complexes, they are phosphorylated at an interdomain linker region by CDK8 and CDK9, which are components of transcriptional mediator and elongation complexes. These phosphorylations promote Smad transcriptional action, which in the case of Smad1 is mediated by the recruitment of YAP to the phosphorylated linker sites. An effector of the highly conserved Hippo organ size control pathway, YAP supports Smad1-dependent transcription and is required for BMP suppression of neural differentiation of mouse embryonic stem cells. The phosphorylated linker is ultimately recognized by specific ubiquitin ligases, leading to proteasome-mediated turnover of activated Smad proteins. Thus, nuclear CDK8/9 drive a cycle of Smad utilization and disposal that is an integral part of canonical BMP and TGF-beta pathways.
pubmed:grant
pubmed:commentsCorrections
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
http://linkedlifedata.com/resource/pubmed/chemical/Adaptor Proteins, Signal Transducing, http://linkedlifedata.com/resource/pubmed/chemical/Bone Morphogenetic Proteins, http://linkedlifedata.com/resource/pubmed/chemical/Cdk9 protein, mouse, http://linkedlifedata.com/resource/pubmed/chemical/Cyclin-Dependent Kinase 8, http://linkedlifedata.com/resource/pubmed/chemical/Cyclin-Dependent Kinase 9, http://linkedlifedata.com/resource/pubmed/chemical/Phosphoproteins, http://linkedlifedata.com/resource/pubmed/chemical/Smad Proteins, http://linkedlifedata.com/resource/pubmed/chemical/Smad1 Protein, http://linkedlifedata.com/resource/pubmed/chemical/Smad1 protein, mouse, http://linkedlifedata.com/resource/pubmed/chemical/Transforming Growth Factor beta, http://linkedlifedata.com/resource/pubmed/chemical/Yap protein, mouse
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
1097-4172
pubmed:author
pubmed:issnType
Electronic
pubmed:day
13
pubmed:volume
139
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
757-69
pubmed:dateRevised
2010-12-3
pubmed:meshHeading
pubmed-meshheading:19914168-Adaptor Proteins, Signal Transducing, pubmed-meshheading:19914168-Animals, pubmed-meshheading:19914168-Bone Morphogenetic Proteins, pubmed-meshheading:19914168-Cell Line, pubmed-meshheading:19914168-Contact Inhibition, pubmed-meshheading:19914168-Cyclin-Dependent Kinase 8, pubmed-meshheading:19914168-Cyclin-Dependent Kinase 9, pubmed-meshheading:19914168-Embryo, Mammalian, pubmed-meshheading:19914168-Humans, pubmed-meshheading:19914168-Mice, pubmed-meshheading:19914168-Organ Size, pubmed-meshheading:19914168-Phosphoproteins, pubmed-meshheading:19914168-Phosphorylation, pubmed-meshheading:19914168-Protein Structure, Tertiary, pubmed-meshheading:19914168-Signal Transduction, pubmed-meshheading:19914168-Smad Proteins, pubmed-meshheading:19914168-Smad1 Protein, pubmed-meshheading:19914168-Transcriptional Activation, pubmed-meshheading:19914168-Transforming Growth Factor beta
pubmed:year
2009
pubmed:articleTitle
Nuclear CDKs drive Smad transcriptional activation and turnover in BMP and TGF-beta pathways.
pubmed:affiliation
Cancer Biology and Genetics Program, Memorial Sloan-Kettering Cancer Center, New York, NY 10021, USA.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't, Research Support, N.I.H., Extramural