Product Name	PPP2R2B/PP2A-B55
Chinese Name	蛋白质磷酸酶2A-B55抗体
Alias	2ABB_HUMAN; B55 beta; Beta isoform of regulatory subunit B55 protein phosphatase 2; MGC24888; PP2A B Subunit B Alpha Isoform; 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 56kDa Regulatory Subunit Alpha Isoform; Serine/threonine protein phosphatase 2A neuronal isoform; Serine/threonine-protein phosphatase 2A 55 kDa regulatory subunit B beta isoform.
Research Area	Cell biology  Neurobiology  Signal transduction  Kinases and Phosphatases
Immunogen Species	Rabbit
Clonality	Polyclonal
React Species	Human, Rat,  (predicted: Mouse, Chicken, Dog, Pig, Rabbit, Sheep, )
Applications	WB=1:500-2000 ELISA=1:5000-10000 IHC-P=1:100-500 IHC-F=1:100-500 ICC=1:100-500 IF=1:100-500 （Paraffin sections need antigen repair） not yet tested in other applications. optimal dilutions/concentrations should be determined by the end user.
Theoretical molecular weight	52kDa
Cellular localization	cytoplasmic The cell membrane
Form	Liquid
Concentration	1mg/ml
immunogen	KLH conjugated synthetic peptide derived from human PPP2R2B/PP2A-B55: 51-130/443
Lsotype	IgG
Purification	affinity purified by Protein A
Buffer Solution	0.01M TBS(pH7.4) with 1% BSA, 0.03% Proclin300 and 50% Glycerol.
Storage	Shipped at 4℃. Store at -20 °C for one year. Avoid repeated freeze/thaw cycles.
Attention	This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications.
PubMed	PubMed
Product Detail	In eukaryotes, the phosphorylation and dephosphorylation of proteins on serine and threonine residues is an essential means of regulating a broad range of cellular functions, including division, homeostasis and apoptosis. A group of proteins that are intimately involved in this process are the protein phosphatases. In general, the protein phosphatase (PP) holoenzyme is a trimeric complex composed of a regulatory subunit, a variable subunit and a catalytic subunit. Four major families of protein phosphatase catalytic subunits have been identified, designated PP1, PP2A, PP2B (calcineurin) and PP2C. An additional protein phosphatase catalytic subunit, PPX (also known as PP4) is a putative member of a novel PP family. The PP2A family comprises subfamily members PP2Aå and PP2A∫. The PP2A catalytic subunit associates with a variety of regulatory subunits. The B family of regulatory subunits (including B55, B56 and PR72/130 subfamilies) is believed to participate in substrate specificity and catalytic activity. PP2A-B55, also known as PP2A regulatory subunit subfamily B55 or PP2A-B1, is a B subfamily consisting of four B55 isoforms (Alpha,Beta, Gamma and Delta) encoded by four distinct genes. 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 (By similarity). Isoform 2 regulates neuronal survival through the mitochondrial fission and fusion balance. Subunit: PP2A consists of a common heterodimeric core enzyme,composed of a 36 kDa catalytic subunit (subunit C) and a 65 kDaconstant regulatory subunit (PR65 or subunit A), that associateswith a variety of regulatory subunits. Proteins that associate withthe core dimer include three families of regulatory subunits B (theR2/B/PR55/B55, R3/B''/PR72/PR130/PR59 and R5/B'/B56 families), the48 kDa variable regulatory subunit, viral proteins, and cellsignaling molecules. Subcellular Location: Cytoplasm. cytoskeleton. Membrane and Cytoplasm. Mitochondrion. Mitochondrion outer membrane. Under basal conditions, localizes to both cytosolic and mitochondrial compartments. Relocalizes from the cytosolic to the mitochondrial compartment during apoptosis. Its targeting to the outer mitochondrial membrane (OMM) involves an association with import receptors of the TOM complex and is required to promote proapoptotic activity. Tissue Specificity: Brain. DISEASE: Defects in PPP2R2B are the cause of spinocerebellar ataxia type 12 (SCA12) [MIM:604326]. Spinocerebellar ataxia is a clinically and genetically heterogeneous group of cerebellar disorders. Patients show progressive incoordination of gait and often poor coordination of hands, speech and eye movements, due to degeneration of the cerebellum with variable involvement of the brainstem and spinal cord. SCA12 is an autosomal dominant cerebellar ataxia (ADCA). Similarity: Belongs to the phosphatase 2A regulatory subunit B family. Contains 7 WD repeats. SWISS: Q00005 Gene ID: 5521 Database links: Entrez Gene: 5521 Human Entrez Gene: 72930 Mouse Entrez Gene: 60660 Rat Omim: 604325 Human SwissProt: Q00005 Human SwissProt: Q6ZWR4 Mouse SwissProt: P36877 Rat Unigene: 655213 Human Unigene: 26134 Mouse Unigene: 44437 Rat
Product Picture	Sample: HepG2 Cell (Human) Lysate at 30 ug Primary: Anti- PPP2R2B/PP2A-B55 (SL11749R) at 1/300 dilution Secondary: IRDye800CW Goat Anti-Rabbit IgG at 1/20000 dilution Predicted band size: 52kD Observed band size: 52kD Sample: A431 Cell (Human) Lysate at 40 ug Primary: Anti- PPP2R2B/PP2A-B55 (SL11749R) at 1/300 dilution Secondary: IRDye800CW Goat Anti-Rabbit IgG at 1/20000 dilution Predicted band size: 52kD Observed band size: 52kD Sample: Cerebrum (Mouse) Lysate at 40 ug Cerebrum (Rat) Lysate at 40 ug Primary: Anti- PPP2R2B (SL11749R) at 1/1000 dilution Secondary: IRDye800CW Goat Anti-Rabbit IgG at 1/20000 dilution Predicted band size: 52 kD Observed band size: 52 kD Sample: Brain (Mouse) Lysate at 40 ug Primary: Anti- PPP2R2B/PP2A-B55 (SL11749R) at 1/300 dilution Secondary: IRDye800CW Goat Anti-Rabbit IgG at 1/20000 dilution Predicted band size: 52kD Observed band size: 52kD Paraformaldehyde-fixed, paraffin embedded (rat brain); Antigen retrieval by boiling in sodium citrate buffer (pH6.0) for 15min; Block endogenous peroxidase by 3% hydrogen peroxide for 20 minutes; Blocking buffer (normal goat serum) at 37°C for 30min; Antibody incubation with (PPP2R2B,PP2A-B55) Polyclonal Antibody, Unconjugated (SL11749R) at 1:200 overnight at 4°C, followed by operating according to SP Kit(Rabbit) (sp-0023) instructionsand DAB staining.

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