Anti-PPP2R3B monoclonal antibody (DCABH-13018) Made to order

Rabbit anti-Human PPP2R3B monoclonal antibody for WB, ELISA

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Host Species
Antibody Isotype
Species Reactivity
A synthetic peptide of human PPP2R3B is used for rabbit immunization.


Alternative Names
PPP2R3B; protein phosphatase 2, regulatory subunit B, beta; PPP2R3L, protein phosphatase 2 (formerly 2A), regulatory subunit B, beta; serine/threonine-protein phosphatase 2A regulatory subunit B subunit beta; PPP2R3LY; PR48
Entrez Gene ID
UniProt ID

Product Background

Cell Cycle, organism-specific biosystem; Cell Cycle, Mitotic, organism-specific biosystem; Cyclin D associated events in G1, organism-specific biosystem; Dopaminergic synapse, organism-specific biosystem; Dopaminergic synapse, conserved biosystem; E2F mediated regulation of DNA replication, organism-specific biosystem; G1 Phase, organism-specific biosystem;


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Case control analysis of repeat expansion size in ataxia


Authors: Majounie, E.; Wardle, M.; Muzaimi, M.; Cross, W. C.; Robertson, N. P.; Williams, N. M.; Morris, H. R.

Spinocerebellar ataxias (SCAB) are a group of clinically and genetically heterogeneous neurological diseases. The expansion of unstable microsatellite repeats has been identified as the underlying pathogenic cause of 10 subtypes of autosomal dominant SCAB. The aetiology of sporadic SCA is unknown. The aim of this study was to investigate the effect of large normal repeats in patients presenting with sporadic or familial ataxia compared to a control population. The size of the expansion was determined using a fluorescent PCR approach in 10 common SCA genes: SCA-1 (ATXN1), SCA-2 (ATXN2), SCA-3 (ATXN3), SCA-6 (CACNA1A), SCA-7 (ATXN7), SCA-8 (ATXN8OS), SCA-10 (ATXN10), SCA-12 (PPP2R2B). SCA-17 (TBP) and DRPLA (ATN1), in 165 ataxia patients and 307 controls of Welsh origin. There was no difference between cases and controls in the distribution of the large normal alleles, or in the distribution of the combined CAG repeats. The normal allele distribution in the Welsh population was largely similar to that of other Caucasian populations. Our study failed to demonstrate an effect of large normal repeats on the susceptibility to develop ataxia. (c) 2007 Elsevier Ireland Ltd. All rights reserved.

Oxidative stress promotes autophagic cell death in human neuroblastoma cells with ectopic transfer of mitochondrial PPP2R2B (B 2)


Authors: Cheng, Wan-Ting; Guo, Zhi-Xuan; Lin, Chia-An; Lin, Ming-Yi; Tung, Li-Chu; Fang, Kang

Background: The multifunctional protein phosphatase 2A (PP2A) is a heterotrimeric serine/threonine protein phosphatase composed of a scaffolding, catalytic and regulatory subunits. By modifying various downstream signal transducers, the aberrant expression of the brain-targeted regulatory subunit PPP2R2B is associated with the onset of a panel of neuronal disorders. The alternatively splicing of PPP2R2B encodes two regulatory subunit isoforms that determine cellular distribution of the neuron-specific holoenzyme to mitochondria (B beta 2) and cytoplasm (B beta 1), respectively. Results: Human neuroblastoma cells were transfected with PPP2R2B constructs encoding the complete sequences of B beta 2 and B beta 1, respectively. The colonies with antibiotic resistance were selected as stable cell lines. Both ectopic B beta 1 and B beta 2 clones exhibited characteristics of autophagy. To test how cells respond to reactive oxygen species generators, the cells were treated with either hydrogen peroxide or t-butyl hydroperoxide and B beta 2 clones induced cell death. Suppression of autophagy using either RNA interference of the essential autophagy gene or pharmacological inhibitor rescued cell death caused by oxidative stress. Conclusions: Cells with ectopically expressed mitochondria-targeted regulatory subunit PPP2R2B of the holoenzyme PP2A were shown predisposed to autophagy and oxidative stress induced cell death that is related to apoptosis. The results promised a model for studying the mechanism and function of aberrant PPP2R2B expression in neuronal cells. The work provided a new target for understanding and prevention of neuropathogenesis.

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