Linked Life Data

16253240

Source:http://linkedlifedata.com/resource/pubmed/id/16253240

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
27
pubmed:dateCreated
2005-11-4
pubmed:abstractText
The modification of homeodomain-interacting protein kinase 2 (HIPK2) by small ubiquitin-like modifier 1 (SUMO-1) plays an important role in its targeting into the promyelocytic leukemia body, as well as in its differential interaction with binding partner, but the desumoylation of HIPK2 by SUMO-specific proteases is largely unknown. In this study, we show that HIPK2 is a desumoylation target for the SUMO-specific protease SENP1 that shuttles between the cytoplasm and the nucleus. Mutation analyses reveal that SENP1 contains the nuclear export sequence (NES) within the extreme carboxyl-terminal region, and SENP1 is exported to the cytoplasm in a NES-dependent manner. Sumoylated HIPK2 are deconjugated by SENP1 both in vitro and in cultured cells, and the desumoylation is enhanced either by the forced translocation of SENP1 into the nucleus or by the SENP1 NES mutant. Concomitantly, desumoylation induces dissociation of HIPK2 from nuclear bodies. These results demonstrate that HIPK2 is a target for SENP1 desumoylation, and suggest that the desumoylation of HIPK2 may be regulated by the cytoplasmic-nuclear shuttling of SENP1.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0014-5793
pubmed:author
pubmed:issnType
Print
pubmed:day
7
pubmed:volume
579
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
6272-8
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
2005
pubmed:articleTitle
Desumoylation of homeodomain-interacting protein kinase 2 (HIPK2) through the cytoplasmic-nuclear shuttling of the SUMO-specific protease SENP1.
pubmed:affiliation
Laboratory Research Program, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD 20892, USA.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't, Research Support, N.I.H., Intramural