MABN869 | Anti-DARPP-32 Antibody, clone 9B6.1

100 μg  
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      Key Spec Table

      Species ReactivityKey ApplicationsHostFormatAntibody Type
      H, RWB, IHCMPurifiedMonoclonal Antibody
      Catalogue NumberMABN869
      Description Anti-DARPP-32 Antibody, clone 9B6.1
      Alternate Names
      • Protein phosphatase 1 regulatory subunit 1B
      • DARPP-32
      • Dopamine- and cAMP-regulated neuronal phosphoprotein
      Background InformationProtein phosphatase 1 regulatory subunit 1B (EC; UniProt Q9UD71; also known as DARPP-32, Dopamine- and cAMP-regulated neuronal phosphoprotein 32) is encoded by the PPP1R1B (also known as DARPP32) gene (Gene ID 84152) in human. DARPP-32 is a PKA substrate that, upon phosphorylation on Thr34 by PKA, functions as a protein-phosphatase 1 (PP1) inhibitor. DARPP-32 N-terminal a.a. 8-11 (KIQF) is essential for PPI binding. DARPP-32 is an important mediator of dopamine receptor-dependent NMDA receptor activation. Dopamine receptor activation leads to cAMP induction, which activates cellular PKA activity and subsequent DARPP-32 Thr34 phosphorylation. PP1 inhibition by the Thr34 phosphorylated DARPP-32 in turn results in an enhnaced NMDA receptor phosphorylation. Calcium/calmodulin-dependent protein phosphatase 2B (PP2B or calcineurin) can reverse DARPP-32 Thr34 phosphorylation and negatively regulate its PP1 inhibitory activity. DARPP-32 is also known to be phosphorylated on Ser137 by casein kinase I (CKI), on Ser102 by CKII, and on Thr75 by Cdk5. Ser137 phosphorylation prevents PP2B from dephosphorylating pSer34, and Ser102 phosphorylation promotes Thr34 phosphorylation by PKA. Thr75 phosphorylated DARPP-32 is reported to exhibit PKA inhibitory activity in vitro.
      Product Information
      PresentationPurified mouse monoclonal IgG1κ antibody in buffer containing 0.1 M Tris-Glycine (pH 7.4), 150 mM NaCl with 0.05% sodium azide.
      ApplicationThis Anti-DARPP-32 Antibody, clone 9B6.1 is validated for use in Western Blotting, Immunohistochemistry for the detection of DARPP-32.
      Key Applications
      • Western Blotting
      • Immunohistochemistry
      Application NotesWestern Blotting Analysis: 1.0 µg/mL from a representative lot detected DARPP-32 in 10 µg of rat brain tissue lysate.
      Immunohistochemistry Analysis: A 1:1000 dilution from a representative lot detected DARPP-32 in human cerebral cortex and human testis tissue.
      Biological Information
      ImmunogenGST-tagged recombinant protein corresponding to the C-terminal half of human DARPP-32.
      EpitopeC-terminal half.
      ConcentrationPlease refer to lot specific datasheet.
      SpecificityExpected to react with both spliced isoforms of human DARPP-32 (UniProt Q9UD71-1 & Q9UD71-2).
      Species Reactivity
      • Human
      • Rat
      Antibody TypeMonoclonal Antibody
      Entrez Gene Number
      Gene Symbol
      • PPP1R1B
      • DARPP32
      Purification MethodProtein G Purified
      UniProt Number
      Molecular Weight~32/30 kDa observed. Target band(s) appears larger than the caluclated molecular weights of 22.96 kDa (isoform 1) and 18.74 kDa (Isoform 2).
      Physicochemical Information
      Materials Information
      Toxicological Information
      Safety Information according to GHS
      Safety Information
      Product Usage Statements
      Quality AssuranceEvaluated by Western Blotting in human brain tissue lysate.

      Western Blotting Analysis: 1.0 µg/mL of this antibody detected DARPP-32 in 10 µg of human brain tissue lysate.
      Usage Statement
      • Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.
      Storage and Shipping Information
      Storage ConditionsStable for 1 year at 2-8°C from date of receipt.
      Packaging Information
      Material Size100 μg
      Transport Information
      Supplemental Information

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      Life Science Research > Antibodies and Assays > Primary Antibodies