Recombinant Human Serine/threonine-protein phosphatase 2A 55 kDa regulatory subunit B beta isoform (PPP2R2B)

Code CSB-YP018565HU
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Source Yeast
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Code CSB-EP018565HU-B
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Source E.coli
Conjugate Avi-tag Biotinylated
E. coli biotin ligase (BirA) is highly specific in covalently attaching biotin to the 15 amino acid AviTag peptide. This recombinant protein was biotinylated in vivo by AviTag-BirA technology, which method is BriA catalyzes amide linkage between the biotin and the specific lysine of the AviTag.
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Code CSB-BP018565HU
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Source Baculovirus
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Code CSB-MP018565HU
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Source Mammalian cell
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Product Details

Purity
>85% (SDS-PAGE)
Target Names
PPP2R2B
Uniprot No.
Alternative Names
2ABB_HUMAN; B55 beta; Beta isoform of regulatory subunit B55 protein phosphatase 2; MGC24888; PP2A B55beta; PP2A PR55B; PP2A subunit B B beta isoform; PP2A subunit B B55 beta isoform; PP2A subunit B isoform B55 beta; PP2A subunit B isoform B55-beta; PP2A subunit B isoform beta; PP2A subunit B isoform PR55 beta; PP2A subunit B isoform PR55-beta; PP2A subunit B isoform R2 beta; PP2A subunit B isoform R2-beta; PP2A subunit B PR55 beta isoform; PP2A subunit B R2 beta isoform; Ppp2r2b; PR2AB beta; PR2AB55 beta; PR2APR55 beta; PR52B; PR55 beta; Protein phosphatase 2 (formerly 2A) regulatory subunit B (PR 52) beta isoform; Protein phosphatase 2 (formerly 2A) regulatory subunit B beta isoform; Protein phosphatase 2 regulatory subunit B; Protein phosphatase 2 regulatory subunit B beta isoform; SCA 12; SCA12; Serine/threonine protein phosphatase 2A 55 kDa regulatory subunit B beta isoform; Serine/threonine protein phosphatase 2A neuronal isoform; Serine/threonine-protein phosphatase 2A 55 kDa regulatory subunit B beta isoform
Species
Homo sapiens (Human)
Expression Region
1-443
Target Protein Sequence
MEEDIDTRKI NNSFLRDHSY ATEADIISTV EFNHTGELLA TGDKGGRVVI FQREQESKNQ VHRRGEYNVY STFQSHEPEF DYLKSLEIEE KINKIRWLPQ QNAAYFLLST NDKTVKLWKV SERDKRPEGY NLKDEEGRLR DPATITTLRV PVLRPMDLMV EATPRRVFAN AHTYHINSIS VNSDYETYMS ADDLRINLWN FEITNQSFNI VDIKPANMEE LTEVITAAEF HPHHCNTFVY SSSKGTIRLC DMRASALCDR HTKFFEEPED PSNRSFFSEI ISSISDVKFS HSGRYIMTRD YLTVKVWDLN MENRPIETYQ VHDYLRSKLC SLYENDCIFD KFECVWNGSD SVIMTGSYNN FFRMFDRNTK RDVTLEASRE NSKPRAILKP RKVCVGGKRR KDEISVDSLD FSKKILHTAW HPSENIIAVA ATNNLYIFQD KVN
Protein Length
Full length protein
Tag Info
Tag type will be determined during the manufacturing process.
The tag type will be determined during production process. If you have specified tag type, please tell us and we will develop the specified tag preferentially.
Form
Lyophilized powder
Note: We will preferentially ship the format that we have in stock, however, if you have any special requirement for the format, please remark your requirement when placing the order, we will prepare according to your demand.
Buffer before Lyophilization
Tris/PBS-based buffer, 6% Trehalose, pH 8.0
Reconstitution
We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20℃/-80℃. Our default final concentration of glycerol is 50%. Customers could use it as reference.
Troubleshooting and FAQs
Storage Condition
Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.
Shelf Life
The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself.
Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.
Lead Time
Delivery time may differ from different purchasing way or location, please kindly consult your local distributors for specific delivery time.
Note: All of our proteins are default shipped with normal blue ice packs, if you request to ship with dry ice, please communicate with us in advance and extra fees will be charged.
Notes
Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.
Datasheet
Please contact us to get it.

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Target Background

Function
The B regulatory subunit might modulate substrate selectivity and catalytic activity, and also might direct the localization of the catalytic enzyme to a particular subcellular compartment. Within the PP2A holoenzyme complex, isoform 2 is required to promote proapoptotic activity. Isoform 2 regulates neuronal survival through the mitochondrial fission and fusion balance.
Gene References into Functions
  1. Dephosphorylation and total levels of beta-catenin were dependent on PR55beta in an adenoid cystic carcinoma tumor cell line. PMID: 29275362
  2. New pathogenic threshold of PPP2R2B CAG-43 to be pathogenic for SCA12 diagnosis. PMID: 27864267
  3. CAG triplet repeat expansion has been found in untranslated region of SCA12 gene in Indian spinocerebellar ataxia 12 patients. PMID: 27350687
  4. Thus, Fcp1 coordinates Cdk1 and Gwl inactivation to derepress PP2A-B55, generating a dephosphorylation switch that drives mitosis progression. PMID: 26653855
  5. investigated CAG copies within PPP2R2B in 29 patients with spinocerebellar ataxia who are excluded from the most common subtypes; 3 patients carried 53, 46 and 54 CAG repeats respectively, while the other 26 cases harbored CAG repeats less than 30 PMID: 25634432
  6. IER5 functions as a positive feedback regulator of HSF1 and that this process involves PP2A/B55 and HSF1 dephosphorylation. PMID: 25816751
  7. Bcl-2 phosphorylation at Ser70 by selective tyrosine nitration of PP2A-B56delta stabilizes its antiapoptotic activity PMID: 25082878
  8. Inactivation of protein-phosphatase 2A causing hyperphosphorylation of paraprotein targets in monoclonal gammopathy of undetermined significance, multiple myeloma and Waldenstrom's macroglobulinemia is due to an exchange of its regulatory subunits PMID: 24676687
  9. We demonstrate that PP2A/B55 is required for Gwl dephosphorylation at the essential Cdk site Thr194. Ensa/ARPP19 dephosphorylation is mediated by the RNA PMID: 24391510
  10. PP2A-B55beta promotes cyclin E1 overexpression by antagonizing its degradation and its inhibition could represent a therapeutic mechanism for abrogating cyclin E1 function in cancers PMID: 24509904
  11. Bod1 regulates protein phosphatase 2A at mitotic kinetochores. PMID: 24157919
  12. Differential autophagic neuronal cell death under stress is determined by the cytoplasmic and mitochondrial-specific PPP2R2B isoforms. PMID: 23381641
  13. Single nucleotide polymorphisms in PPP2R2B is associated with drug response in breast cancer. PMID: 23034890
  14. Data indicate that PPP2R2B gene product PP2A/Bbeta2 activates the mitochondrial fission enzyme dynamin-related protein 1 (Drp1) by dephosphorylating Ser656. PMID: 22583914
  15. This study suggested that PPP2R2B CAG expansion mutation might lead increase induction of Spinocerebellar ataxia type 12. PMID: 21827912
  16. defective production of PP2A Bbeta upon IL-2 deprivation results in apoptosis resistance and longer survival of autoreactive T cells, in a subset of SLE patients PMID: 21746932
  17. oxidative stress induced by mitochondrial dysfunction causes elevated expression of ppp2r2b and plays a causal role in SCA12; and reduction of ROS is a potential therapeutic intervention for this neuropathy PMID: 21471219
  18. results indicate that the A variant of the rs319217 SNP of the PPP2R2B gene is a marker of better prognosis in breast cancer PMID: 20669227
  19. CAG repeat lengths in the PPP2R2B gene may be potential genetic markers for Alzheimer disease susceptibility in the Japanese population. PMID: 21029765
  20. PPP2R2B, encoding the B55beta regulatory subunit of the PP2A complex, is epigenetically inactivated by DNA hypermethylation in colorectal cancer. PMID: 21075311
  21. Autosomal dominant cerebellar ataxia mapping to 5q31-q33.1 has no CAG repeat expansion or other mutations of the PPP2R2B gene. PMID: 20937954
  22. Quantitative methylation analysis identified ABCB1, FOXC1, PPP2R2B and PTEN as novel genes to be methylated in ductal carcinoma in situ. PMID: 20056007
  23. The CAG repeat in SCA12 functions as a cis element to up-regulate PPP2R2B expression. PMID: 20533062
  24. We investigated methylation patterns in the promoter regions of ABCB1, ATM, BRCA1, CDH3, CDKN2A, CXCR4, ESR1, FBXW7, FOXC1, GSTP1, IGF2, HMLH1, PPP2R2B, and PTEN75 in well-described pre-treatment samples from locally advanced breast cancer PMID: 20338046
  25. Cells with ectopically expressed PPP2R2B were shown predisposed to autophagy and oxidative stress induced cell death. PMID: 20017961
  26. a novel ATM-dependent mechanism is regulating association of B55 subunits with nuclear PP2A in response to IR PMID: 11723136
  27. Cyclin G recruits PP2A in order to modulate the phosphorylation of Mdm2 and thereby to regulate both Mdm2 and p53. PMID: 11983168
  28. Phosphorylation of bestrophin is regulated by PP2A. PMID: 12058047
  29. SCA12 triplet expansion rate in Italian ataxia patients PMID: 12140678
  30. Analysis of CTA/CTG and CAG polymorphism in a Polish control group. PMID: 14960773
  31. phospholipase D suppresses protein phosphatase 2A and is involved in the mTOR survival pathway in the transformation of human cells PMID: 16109716
  32. PP2A plays a positive rather than a negative role in the regulation of IKKbeta PMID: 16126728
  33. analysis of a founder for SCA12 in the Indian population PMID: 16138911
  34. We therefore propose that PP2A plays a crucial role in the maintenance of cell-cell adhesion through recruitment of IQGAP1 to the Rac-bound E-cadherin-catenins complex. PMID: 16245300
  35. The tumor suppressor PP2A is functionally inactivated in blast crisis CML through the inhibitory activity of the BCR/ABL-regulated SET protein. PMID: 16286244
  36. PP2A-mediated dephosphorylation of HSP27 and tau correlated with PP2A-induced preservation of endothelial cell cytoskeleton PMID: 16475161
  37. Cyclin G2 may modulate the cell cycle and cellular division processes through modulation of PP2A and centrosomal associated activities. PMID: 17123511
  38. The small t antigen (ST) of DNA tumor virus SV40 inhibits PP2A phosphatase activity through its N-terminal J domain. PMID: 17529992
  39. results suggest that the PPP2R2B gene CAG repeat polymorphism may be functional and may, in part, play a role in conferring susceptibility to Alzheimer disease and essential tremor in Taiwan PMID: 18484086
  40. Adenovirus E4orf4 protein downregulates MYC expression through interaction with the PP2A-B55 subunit PMID: 18653458
  41. Results suggest that Parkinsonism (PD) and multiple system atrophy (MSA) are not associated with spinocerebellar ataxia 12 (SCA12) and it is not necessary to screen SCA12 in PD and MSA patients. PMID: 18973067
  42. Clinical trial and genome-wide association study of gene-disease association, gene-environment interaction, and pharmacogenomic / toxicogenomic. (HuGE Navigator) PMID: 18519826

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Involvement in disease
Spinocerebellar ataxia 12 (SCA12)
Subcellular Location
[Isoform 1]: Cytoplasm. Cytoplasm, cytoskeleton. Membrane.; [Isoform 2]: Cytoplasm. Mitochondrion. Mitochondrion outer membrane.
Protein Families
Phosphatase 2A regulatory subunit B family
Tissue Specificity
Brain.
Database Links

HGNC: 9305

OMIM: 604325

KEGG: hsa:5521

STRING: 9606.ENSP00000336591

UniGene: Hs.627618

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