PKA RI-β Antibody - CD BioSciences

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PKA RI-β Antibody

PKA RI-β Antibody

SPA-08961

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0.1 mL Online Inquiry
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Target Information
Target Name PKA
Gene Abbr. PRKAR1B
Gene ID 5575
Full Name protein kinase cAMP-dependent type I regulatory subunit beta
Alias PRKAR1
Introduction The second messenger cyclic AMP (cAMP) activates cAMP-dependent protein kinase (PKA or cAPK) in mammalian cells and controls many cellular mechanisms such as gene transcription, ion transport, and protein phosphorylation. Inactive PKA is a heterotetramer composed of a regulatory subunit (R) dimer and a catalytic subunit (C) dimer. In this inactive state, the pseudosubstrate sequences on the R subunits block the active sites on the C subunits. Three C subunit isoforms (C-α, C-β, and C-γ) and two families of regulatory subunits (RI and RII) with distinct cAMP binding properties have been identified. The two R families exist in two isoforms, α and β (RI-α, RI-β, RII-α, and RII-β). Upon binding of cAMP to the R subunits, the autoinhibitory contact is eased and active monomeric C subunits are released. PKA shares substrate specificity with Akt (PKB) and PKC, which are characterized by an arginine at position -3 relative to the phosphorylated serine or threonine residue. Substrates that present this consensus sequence and have been shown to be phosphorylated by PKA are Bad (Ser155), CREB (Ser133), and GSK-3 (GSK-3α Ser21 and GSK-3β Ser9). In addition, combined knock-down of PKA C-α and -β blocks cAMP-mediated phosphorylation of Raf (Ser43 and Ser259). Autophosphorylation and phosphorylation by PDK-1 are two known mechanisms responsible for phosphorylation of the C subunit at Thr197.
Product Details
Host Sheep
Clonality Polyclonal
Clone No. N/A
Isotype IgG
Immunogen E. coli-derived recombinant human PKA RI beta. Met1-Val381. P31321.
Usage
Application WB
Dilutions Western Blot (1 µg/mL)
MW(KDa) 48
Reactivity Human, Mouse, Rat
Specificity Detects human, mouse, and rat PKA RI beta in Western Blots. In Western Blots, less than 1% cross-reactivity with recombinant human (rh) PKA RI alpha or rhPKA RII beta is observed; cross-reactivity with PKA RII alpha is unknown.
Storage & Handling
Storage Buffer Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose.
Preservative No Preservative
Storage Temp. 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.
Handling Use a manual defrost freezer and avoid repeated freeze-thaw cycles.

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