JH295 - CAS 1311143-71-1
Catalog number:
1311143-71-1
Category:
Inhibitor
Not Intended for Therapeutic Use. For research use only.
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Description:
JH295 is an irreversible, cysteine-targeted inhibitors of the human centrosomal kinase, Nek2. JH295 irreversibly inhibited cellular Nek2 without affecting the mitotic kinases, Cdk1, Aurora B, or Plk1. Moreover, 16 did not perturb bipolar spindle assembly or the spindle assembly checkpoint. To our knowledge, 16 is the first small molecule shown to inactivate Nek2 kinase activity in cells.
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Synonyms:
JH295; JH 295; JH-295
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1.Irreversible Nek2 kinase inhibitors with cellular activity.
Henise JC1, Taunton J. J Med Chem. 2011 Jun 23;54(12):4133-46. doi: 10.1021/jm200222m. Epub 2011 May 31.
A structure-based approach was used to design irreversible, cysteine-targeted inhibitors of the human centrosomal kinase, Nek2. Potent inhibition of Nek2 kinase activity in biochemical and cell-based assays required a noncatalytic cysteine residue (Cys22), located near the glycine-rich loop in a subset of human kinases. Elaboration of an oxindole scaffold led to our most selective compound, oxindole propynamide 16 (JH295). Propynamide 16 irreversibly inhibited cellular Nek2 without affecting the mitotic kinases, Cdk1, Aurora B, or Plk1. Moreover, 16 did not perturb bipolar spindle assembly or the spindle assembly checkpoint. To our knowledge, 16 is the first small molecule shown to inactivate Nek2 kinase activity in cells.
2.Orthogonal intercellular signaling for programmed spatial behavior.
Grant PK1, Dalchau N2, Brown JR1, Federici F3, Rudge TJ4, Yordanov B2, Patange O4, Phillips A2, Haseloff J5. Mol Syst Biol. 2016 Jan 25;12(1):849. doi: 10.15252/msb.20156590.
Bidirectional intercellular signaling is an essential feature of multicellular organisms, and the engineering of complex biological systems will require multiple pathways for intercellular signaling with minimal crosstalk. Natural quorum-sensing systems provide components for cell communication, but their use is often constrained by signal crosstalk. We have established new orthogonal systems for cell-cell communication using acyl homoserine lactone signaling systems. Quantitative measurements in contexts of differing receiver protein expression allowed us to separate different types of crosstalk between 3-oxo-C6- and 3-oxo-C12-homoserine lactones, cognate receiver proteins, and DNA promoters. Mutating promoter sequences minimized interactions with heterologous receiver proteins. We used experimental data to parameterize a computational model for signal crosstalk and to estimate the effect of receiver protein levels on signal crosstalk. We used this model to predict optimal expression levels for receiver proteins, to create an effective two-channel cell communication device.
3.A Cyan Fluorescent Reporter Expressed from the Chloroplast Genome of Marchantia polymorpha.
Boehm CR1, Ueda M2, Nishimura Y3, Shikanai T4, Haseloff J5. Plant Cell Physiol. 2016 Feb;57(2):291-9. doi: 10.1093/pcp/pcv160. Epub 2015 Dec 3.
Recently, the liverwort Marchantia polymorpha has received increasing attention as a basal plant model for multicellular studies. Its ease of handling, well-characterized plastome and proven protocols for biolistic plastid transformation qualify M. polymorpha as an attractive platform to study the evolution of chloroplasts during the transition from water to land. In addition, chloroplasts of M. polymorpha provide a convenient test-bed for the characterization of genetic elements involved in plastid gene expression due to the absence of mechanisms for RNA editing. While reporter genes have proven valuable to the qualitative and quantitative study of gene expression in chloroplasts, expression of green fluorescent protein (GFP) in chloroplasts of M. polymorpha has proven problematic. We report the design of a codon-optimized gfp varian, mturq2cp, which allowed successful expression of a cyan fluorescent protein under control of the tobacco psbA promoter from the chloroplast genome of M.
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CAS 1311143-71-1 JH295

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