Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
12
pubmed:dateCreated
2003-12-31
pubmed:abstractText
Gastropod mollusks have been used for over 2500 years to produce the "Tyrian purple" dye made famous by the Phoenicians. This dye is constituted of mixed bromine-substituted indigo and indirubin isomers. Among these, the new natural product 6-bromoindirubin and its synthetic, cell-permeable derivative, 6-bromoindirubin-3'-oxime (BIO), display remarkable selective inhibition of glycogen synthase kinase-3 (GSK-3). Cocrystal structure of GSK-3beta/BIO and CDK5/p25/indirubin-3'-oxime were resolved, providing a detailed view of indirubins' interactions within the ATP binding pocket of these kinases. BIO but not 1-methyl-BIO, its kinase inactive analog, also inhibited the phosphorylation on Tyr276/216, a GSK-3alpha/beta activation site. BIO but not 1-methyl-BIO reduced beta-catenin phosphorylation on a GSK-3-specific site in cellular models. BIO but not 1-methyl-BIO closely mimicked Wnt signaling in Xenopus embryos. 6-bromoindirubins thus provide a new scaffold for the development of selective and potent pharmacological inhibitors of GSK-3.
pubmed:commentsCorrections
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
1074-5521
pubmed:author
pubmed:issnType
Print
pubmed:volume
10
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1255-66
pubmed:dateRevised
2009-11-19
pubmed:meshHeading
pubmed-meshheading:14700633-Animals, pubmed-meshheading:14700633-Binding Sites, pubmed-meshheading:14700633-Cell Line, pubmed-meshheading:14700633-Crystallography, X-Ray, pubmed-meshheading:14700633-Embryo, Nonmammalian, pubmed-meshheading:14700633-Enzyme Inhibitors, pubmed-meshheading:14700633-Glycogen Synthase Kinase 3, pubmed-meshheading:14700633-Indoles, pubmed-meshheading:14700633-Models, Molecular, pubmed-meshheading:14700633-Molecular Structure, pubmed-meshheading:14700633-Nuclear Magnetic Resonance, Biomolecular, pubmed-meshheading:14700633-Protein Structure, Tertiary, pubmed-meshheading:14700633-Proto-Oncogene Proteins, pubmed-meshheading:14700633-Shellfish, pubmed-meshheading:14700633-Signal Transduction, pubmed-meshheading:14700633-Substrate Specificity, pubmed-meshheading:14700633-Wnt Proteins, pubmed-meshheading:14700633-Xenopus
pubmed:year
2003
pubmed:articleTitle
GSK-3-selective inhibitors derived from Tyrian purple indirubins.
pubmed:affiliation
CNRS, Cell Cycle Group, Station Biologique, BP 74, 29682 Roscoff cedex, Bretagne, France. meijer@sb-roscoff.fr
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't