Either BD Cytofix™ fixation buffer or BD™ Phosflow Fix Buffer I may be used for cell fixation. Any of the three BD™ Phosflow permeabilization buffers may be used.
Sample Volume
20 μL
Restrictions
For Research Use only
Format
Liquid
Buffer
Aqueous buffered solution containing BSA and ≤0.09 % sodium azide.
Preservative
Sodium azide
Precaution of Use
This product contains Sodium azide: a POISONOUS AND HAZARDOUS SUBSTANCE which should be handled by trained staff only.
Storage
4 °C
Storage Comment
The antibody was conjugated to Alexa Fluor® 647 under optimum conditions, and unreacted Alexa Fluor® 647 was removed. Store undiluted at 4°C and protected from prolonged exposure to light. Do not freeze.
Target
PRKAR2B
(Protein Kinase, CAMP-Dependent, Regulatory, Type II, beta (PRKAR2B))
Alternative Name
PKA RIIb
Background
CAMP-dependent Protein Kinase (PKA) is composed of two distinct subunits: catalytic (C) and regulatory (R). Four regulatory subunits have been identified: RIalpha, RIbeta, RIIalpha, and RIIbeta. These subunits define type I and II PKAs. Following binding of cAMP, the regulatory subunits dissociate from the catalytic subunits, rendering the enzyme active. Type I and type II holoenzymes have three potential C subunits (Calpha, Cbeta, or Cgamma). Most cells, including T lymphocytes, express both type I and type II PKAs. RIIa expression is associated with cellular transformation, while RIIbeta expression correlates with mitotic arrest and cellular differentiation. Type II PKA can be distinguished by autophosphorylation of the R subunits, while type I PKA binds Mg/ATP with high affinity. The cAMP-dependent autophosphorylation of the human RIIbeta subunits occurs at serine 114 (S114). In addition to their enzyme regulatory activity, the RIIalpha and RIIbeta subunits determine the subcellular location of the holoenzymes via their interactions with specific intracellular anchoring proteins. The 47/PKA monoclonal antibody recognizes the phosphorylated S114 in the RIIbeta subunit of PKA. The orthologous phosphorylation site in mouse and rat PKA[RIIbeta] is S112. Synonyms: KAP3, PKAR2B, PRKAR2B