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Heterochromatin Protein 1? (HP1?)

 

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  • Product Description
 

Heterochromatin protein 1 (HP1) proteins are fundamental units of heterochromatin packaging.In mammals,there are three HP1 homologues termed HP1?(Cbx5),HP1?(Cbx1) and HP1?(Cbx3).HP1? is the best characterized isoform.Murine HP1? is essential for organismal survival.This study demonstrates that Cbx1+/- and Cbx1-/- MEFs escape senescence crisis that is associated with chromosomal aberrations.Telomeres of late passage Cbx1-/- MEFs are longer than WT controls. Introduction of Cbx1-/- mutation in cells expressing H-rasV12 oncogene did not result senescence bypass.K-rasV12 oncogene expression in Cbx1+/- mice resulted in increased malignant adenocarcinomas.These data indicate that HP1? acts as a tumour suppressor.Other experiments showed that binding of HP1? to histone H3(HH3) is resistant to high salt concentrations.ITC experiments confirmed that binding affinity of HP1? for HH3 was 4 times higher than for H3K9me3.The high affinity binding of HP1? to the HH3 is shown to be stronger than the affinity to H3K9me3.Loss of this interaction might result in the perinatal lethal phenotype seen in Cbx1-/- mice.

Product Specifications
SKU :COC99417
AuthorMUSTAFA BILLUR
LanguageEnglish
BindingPaperback
Number of Pages160
Publishing Year2011-01-24T00:00:00.000
ISBN978-3838123196
Edition1 st
Book TypeGenetics (non-medical)
Country of ManufactureIndia
Product BrandNot defined
Product Packaging InfoBox
In The Box1 Piece
Product First Available On ClickOnCare.com2015-08-18 00:00:00