Anti-SAPK/JNK Rabbit pAb

Protein A and immunoaffinity purified rabbit polyclonal antibody. Recognizes the ~54 kDa SAPK/JNK protein.

Recognizes the ~54 kDa SAPK/JNK protein in uv-treated HEK293 cells.

This Anti-SAPK/JNK Rabbit pAb is validated for use in Immunoblotting, Immunocytochemistry for the detection of SAPK/JNK.

Human

a full-length, recombinant, human p54 SAPK/JNK2 fusion protein

Immunoblotting (1:1000)

Immunocytochemistry (1:200)

Toxicity: Standard Handling (A)

In 150 mM NaCl, 10 mM HEPES, 50% glycerol, 0.01% BSA, pH 7.5.

Following initial thaw, aliquot and freeze (-20°C).

Positive Control
UV treated HEK293 cells

Gupta, S., et al. 1996. EMBO J.15(11), 2760.
Coso, O.A., et al. 1995. Cell81, 1137.
Derijard, B., et al. 1994. Cell76, 1025.
Kyriakis, J.M., et al. 1994. Nature369, 156.
Hibi, M., et al. 1993. Genes Dev.7, 2135.
Kyriakis, J.M. and Avruch, J. 1990. J. Biol. Chem.265, 17355.

Recognizes SAPK/JNK regardless of the phosphorylation state. Variables associated with assay conditions will dictate the proper working dilution.



Recommended Protocol for Immunoblotting



Solutions and Reagents

•Transfer Buffer: 25 mM Tris base, 0.2 M glycine, 20% methanol, pH 8.5.

•SDS Sample Buffer: 62.5 mM Tris-HCl, pH 6.8, 2% SDS, 10% glycerol, 50 mM DTT, 0.1% bromphenol blue.

•10X TBS (Tris-buffered saline): To prepare 1 liter, 24.2 g Tris base, 80 g NaCl, adjust pH to 7.6 with HCl. Dilute 1:10 for use.

•Blocking Buffer: 1X TBS, 0.1% Tween^®-20 detergent with 5% non-fat dry milk.

•Primary Antibody Dilution Buffer: 1X TBS, 0.1% Tween-20 detergent with 5% BSA

•Wash Buffer (TBST): 1X TBS, 0.1% Tween-20 detergent



Blotting Membrane

Nitrocellulose or PVDF membranes may be used.



Protein Blotting

A general protocol for sample preparation using 2x10⁶ 293 cells per well in a 6-well plate is as follows:



1. Aspirate media. Treat cells by adding fresh media containing regulator for desired time.

2. Aspirate media from cultures; wash cells with PBS; aspirate.

3. Lyse cells by adding 100 µl of SDS Sample Buffer and immediately scrape the cells off the plate and transfer the extract to a microfuge tube. Keep on ice.

4. Sonicate for 2 s to shear DNA and reduce sample viscosity.

5. Heat sample to 95-100°C for 5 min. Cool on ice.

6. Microcentrifuge for 5 min.

7. Load 20 µl onto SDS-PAGE gel (10 cm x 10 cm).

8. Electrotransfer to nitrocellulose membrane.



As controls, we recommend using 20 µl lysate from UV treated HEK293 cell.



Membrane Blocking, Gel and Antibody Incubations

1. After transfer, wash membrane with 25 ml TBS for 5 min at room temperature.

2. Incubate membrane in 25 ml Blocking Buffer for 1-3 h at room temperature or overnight at 4°C.

3. Wash 3 times for 5 min each with 15 ml TBST.

4. Incubate membrane and primary antibody (at the appropriate dilution) in 10 ml Primary Antibody Dilution Buffer with gentle agitation overnight at 4°C.

5. Wash 3 times for 5 min each with 15 ml TBST.

6. Incubate membrane with conjugated secondary antibody at the appropriate dilution in 10 ml Blocking Buffer with gentle agitation for 1 h at room temperature.

7. Wash membrane as in step 5.



Detection of Proteins

Chemiluminescence.

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