Mouse/Rat Phospho-DARPP-32 (T34) Antibody

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Detection of Rat and Mouse Phospho-DARPP‑32 (T34) by Western Blot.
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Mouse/Rat Phospho-DARPP-32 (T34) Antibody Summary

Species Reactivity
Mouse, Rat
Detects mouse and rat DARPP-32 when phosphorylated at T34 in Western blots. There is weak cross-reactivity with phosphorylated PP1 Inhibitor-1, which contains a nearly identical phosphorylation site. Reactivity with human Phospho-DARPP-32 has not been confirmed.
Polyclonal Rabbit IgG
Antigen Affinity-purified
Phosphopeptide containing mouse DARPP-32 T34 site
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.


Recommended Concentration
Western Blot
1 µg/mL
See below

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

Scientific Data

Western Blot Detection of Rat and Mouse Phospho-DARPP‑32 (T34) antibody by Western Blot. View Larger

Detection of Rat and Mouse Phospho-DARPP‑32 (T34) by Western Blot. Western blot shows lysates of rat and mouse corpus striata tissue untreated (-) or treated (+) with calcium for 1 hour. PVDF membrane was probed with 1 µg/mL of Rabbit Anti-Mouse/Rat Phospho-DARPP-32 (T34) Antigen Affinity-purified Polyclonal Antibody (Catalog # AF2847), followed by HRP-conjugated Anti-Rabbit IgG Secondary Antibody (Catalog # HAF008). A specific band was detected for Phospho-DARPP-32 (T34) at approximately 32 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.

Reconstitution Calculator

Reconstitution Calculator

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Preparation and Storage

Reconstitute at 0.2 mg/mL in sterile PBS.
Reconstitution Buffer Available
Reconstitution Buffer 1 (PBS)
Catalog #
Size / Price
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
Stability & Storage
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 6 months, -20 to -70 °C under sterile conditions after reconstitution.

Background: DARPP-32

Dopamine- and cAMP-Regulated Neuronal Phosphoprotein, Mr 32 kDa (DARPP-32), also known as PPP1R1B, is a 23 kilodalton protein which anomalously migrates at about 32 - 35 kDa on SDS-PAGE. When phosphorylated at T34 by protein kinase A (PKA), it is a potent inhibitor of protein phosphatase 1 (PP1). Dephosphorylation of DARPP-32 at T34 is achieved primarily by the calcium-dependent activation of the phosphatase calcineurin. DARPP-32 is expressed almost exclusively in neuronal tissues, with highest levels in dopamine-innervated neurons. Phosphorylation of DARPP-32 at T34 has been used as an index of PKA activation.

Long Name
Dopamine and cAMP-regulated Phosphoprotein
Entrez Gene IDs
84152 (Human); 19049 (Mouse); 360616 (Rat)
Alternate Names
DARPP32; DARPP-32; PPP1R1B; protein phosphatase 1, regulatory (inhibitor) subunit 1B; regulatory (inhibitor) subunit 1B (dopamine and cAMPregulated phosphoprotein, DARPP-32)

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Citation for Mouse/Rat Phospho-DARPP-32 (T34) Antibody

R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.

1 Citation: Showing 1 - 1

  1. Phosphorylation of huntingtin at Ser421 in YAC128 neurons is associated with protection of YAC128 neurons from NMDA-mediated excitotoxicity and is modulated by PP1 and PP2A.
    Authors: Metzler M, Gan L, Mazarei G
    J. Neurosci., 2010-10-27;30(43):14318-29.
    Species: Mouse
    Sample Types: Tissue Homogenates
    Applications: Western Blot


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Mouse/Rat Phospho-DARPP-32 (T34) Antibody
By Anonymous on 09/21/2018
Application: Simple Western Sample Tested: Brain (cortex) tissue Species: Rhesus Macaque