The second messenger cyclic AMP (cAMP) mediates diverse cellular responses to external signals such as proliferation, ion transport, regulation of metabolism and gene transcription by activation of the cAMP-dependent protein kinase (cAPK or PKA).
Activation of PKA occurs when cAMP binds to the two regulatory subunits of the tetrameric PKA holoenzyme resulting in release of active catalytic subunits.
Three catalytic (C) subunits have been identified, designated Ca, Cb and Cgamma, that each represent specific gene products.
Ca and Cb are closely related (93% amino acid sequence similari- ty), whereas Cgamma displays 83% and 79% similarity to Ca and Cb, respectively.
Activation of transcription upon elevation of cAMP levels results from translocation of PKA to the nucleus where it phosphorylates the transcrip- tion factor cAMP response element binding protein (CREB) on serine 133 which in turn leads to TFIIB binding to TATA-box-binding protein TBP1, thus linking phospho-CREB to the pol II transcription initiation complex.
Applications:Suitable for use in ELISA, Western Blot, and Immunohistochemistry.
Other applications not tested.
Recommended Dilution:ELISA: 1:1,000Western Blot: 1:100-1:500Immunohistochemistry: 1:50-1:100Optimal dilutions to be determined by the researcher.
Storage and Stability:Store product at 4°C if to be used immediately within two weeks.
For long-term storage, aliquot to avoid repeated freezing and thawing and store at -20°C.
Aliquots are stable at -20°C for 12 months after receipt.
Dilute required amount only prior to immediate use.
Further dilutions can be made in assay buffer.
For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.
Note: Applications are based on unconjugated antibody.
仕様
Size：200ul
Host：rabbit
Source Antibody：human
Grade：Affinity Purified
Purity：Purified by Protein G affinity chromatography.
Form：Supplied as a liquid in PBS, pH 7.2. No preservative added. Labeled with Biotin.
Specificity：Recognizes human PRKAR1B. Species Crossreactivity: mouse.
Isotype：IgG
Calc Applications Abbrev：E IHC WB
Calc Crossreactivity：Hu Mo
Immunogen：Synthetic peptide selected from the N-terminal region of human PRKAR1B (KLH).
