Anti-PKA beta (catalytic subunit) (phospho S338) antibody (ab5816)
- Datasheet
- References (1)
- Protocols
Overview
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Product name
Anti-PKA beta (catalytic subunit) (phospho S338) antibody
See all PKA beta (catalytic subunit) primary antibodies -
Description
Rabbit polyclonal to PKA beta (catalytic subunit) (phospho S338) -
Host species
Rabbit -
Specificity
Peptide competition data indicate that this antibody cross-reacts with the PKA nu subunit (64% homologous) and partially with the alpha subunit (82% homologous). -
Tested applications
Suitable for: WBmore details -
Species reactivity
Reacts with: Mouse, Human
Predicted to work with: Cow, Pig
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Immunogen
Synthetic phosphopeptide derived from a region of human PKA catalytic beta subunit that contains serine 338.
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Positive control
- 3T3-L1 adipocytes.
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General notes
c-AMP-dependent Protein Kinase (PKA) is a serine/threonine kinase that regulates a number of cellular processes including proliferation, ion transport and gene transcription. PKA is composed of conserved catalytic subunits and regulatory subunits that dissociate upon activation by cAMP. The catalytic subunit of PKA contains the activation loop and mediates DNA binding and substrate recognition. The catalytic subunit is assembled and expressed as an active form and is phosphorylated on threonine 197 by PDK 1 in the activation loop and serine 338 in the carboxyl terminus. Phosphorylation of serine 338 plays a key role in stabilizing PKA and activating its substrates, and hence mediating its biological functions.
Properties
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Form
Liquid -
Storage instructions
Shipped at 4°C. Upon delivery aliquot and store at -20°C or -80°C. Avoid repeated freeze / thaw cycles. -
Storage buffer
pH: 7.30
Preservative: 0.05% Sodium azide
Constituents: PBS, 50% Glycerol, 0.1% BSA -
Concentration information loading... -
Purity
Immunogen affinity purified -
Purification notes
The antibody has been negatively preadsorbed using a non-phosphopeptide corresponding to the site of phosphorylation to remove antibody that is reactive with non-phosphorylated PKA. The final product is generated by affinity chromatography using a PKA-derived peptide that is phosphorylated at serine 338. -
Primary antibody notes
c-AMP-dependent Protein Kinase (PKA) is a serine/threonine kinase that regulates a number of cellular processes including proliferation, ion transport and gene transcription. PKA is composed of conserved catalytic subunits and regulatory subunits that dissociate upon activation by cAMP. The catalytic subunit of PKA contains the activation loop and mediates DNA binding and substrate recognition. The catalytic subunit is assembled and expressed as an active form and is phosphorylated on threonine 197 by PDK 1 in the activation loop and serine 338 in the carboxyl terminus. Phosphorylation of serine 338 plays a key role in stabilizing PKA and activating its substrates, and hence mediating its biological functions. -
Clonality
Polyclonal -
Isotype
IgG -
Research areas
Associated products
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Compatible Secondaries
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Isotype control
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Recombinant Protein
Applications
Our Abpromise guarantee covers the use of ab5816 in the following tested applications.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
| Application | Abreviews | Notes |
|---|---|---|
| WB | 1/1000. Detects a band of approximately 42 kDa. |
Target
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Function
Mediates cAMP-dependent signaling triggered by receptor binding to GPCRs. PKA activation regulates diverse cellular processes such as cell proliferation, the cell cycle, differentiation and regulation of microtubule dynamics, chromatin condensation and decondensation, nuclear envelope disassembly and reassembly, as well as regulation of intracellular transport mechanisms and ion flux. -
Tissue specificity
Isoform 1 is most abundant in the brain, with low level expression in kidney. Isoform 2 is predominantly expressed in thymus, spleen and kidney. Isoform 3 and isoform 4 are only expressed in the brain. -
Sequence similarities
Belongs to the protein kinase superfamily. AGC Ser/Thr protein kinase family. cAMP subfamily.
Contains 1 AGC-kinase C-terminal domain.
Contains 1 protein kinase domain. -
Post-translational
modificationsAsn-3 is partially deaminated to Asp giving rise to 2 major isoelectric variants, called CB and CA respectively. -
Cellular localization
Cytoplasm. Nucleus. Translocates into the nucleus (monomeric catalytic subunit) (By similarity). The inactive holoenzyme is found in the cytoplasm. - Information by UniProt
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Database links
- Entrez Gene: 5567 Human
- Entrez Gene: 18749 Mouse
- Omim: 176892 Human
- SwissProt: P05131 Cow
- SwissProt: P22694 Human
- SwissProt: P68181 Mouse
- SwissProt: P05383 Pig
- Unigene: 487325 Human
see all -
Alternative names
- cAMP-dependent protein kinase catalytic beta subunit isoform 4ab antibody
- cAMP-dependent protein kinase catalytic subunit beta antibody
- KAPCB_HUMAN antibody
see all
Images
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Western blot - Anti-PKA beta (catalytic subunit) (phospho S338) antibody (ab5816)Peptide Competition: Lysates prepared from 3T3-L1 cells were resolved by SDS-PAGE on a 10% polyacrylamide gel and transferred to PVDF. Membranes were either treated with lambda phosphatase (1) or left untreated (2-5), blocked with a 5% BSA-TBSTbuffer for two hours at room temperature, and incubated with ab5816 antibody for two hours at room temperature in a 3% BSA-TBST buffer, following prior incubation with: no peptide (1, 2), the non-phosphopeptide corresponding to the immunogen (3), a generic phosphoserine-containing peptide (4), or, the phosphopeptide immunogen (5). After washing, membranes were incubated with goat F(ab’)2 anti-rabbit IgG HRP-conjugate and bands were detected using the Pierce SuperSignalTM method. The data show that the peptide corresponding to PKA cat beta [pS338] blocks the antibody signal, thereby verifying the specificity of the antibody. The data also show that phosphatase stripping eliminates the signal, verifying that the antibody is phospho-specific.
Peptide Competition: Lysates prepared from 3T3-L1 cells were resolved by SDS-PAGE on a 10% polyacrylamide gel and transferred to PVDF. Membranes were either treated with lambda phosphatase (1) or left untreated (2-5), blocked with a 5% BSA-TBSTbuffer for two hours at room temperature, and incubated with ab5816 antibody for two hours at room temperature in a 3% BSA-TBST buffer, following prior incubation with: no peptide (1, 2), the non-phosphopeptide corresponding to the immunogen (3), a generic phosphoserine-containing peptide (4), or, the phosphopeptide immunogen (5). After washing, membranes were incubated with goat F(ab’)2 anti-rabbit IgG HRP-conjugate and bands were detected using the Pierce SuperSignalTM method. The data show that the peptide corresponding to PKA cat beta [pS338] blocks the antibody signal, thereby verifying the specificity of the antibody. The data also show that phosphatase stripping eliminates the signal, verifying that the antibody is phospho-specific.
Protocols
Datasheets and documents
References
This product has been referenced in:
- Cao N et al. Clinical-grade human umbilical cord-derived mesenchymal stem cells reverse cognitive aging via improving synaptic plasticity and endogenous neurogenesis. Cell Death Dis 8:e2996 (2017). WB . Read more (PubMed: 28796260) »
