A Good p21 Antibody for Western Blot

Cellular/Molecular Biology
Texas Tech Health Sciences Center
Research Scientist

Overall

Quality of Results

Ease-of-Optimization

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Company:

Santa Cruz Biotechnology, Inc.

Product Name:

p21

Catalog Number:

sc-187

Clone Number:

187

The resistance to endoreduplication observed in some cell lines was associated with a prolonged 4N arrest after Nutlin-3a removal. Knockdown of either p53 or p21 immediately after Nutlin-3a removal could drive endoreduplication in otherwise resistant 4N cells. Finally, 4N-arrested cells retained persistent p21 expression; expressed senescence-associated β-galactosidase; displayed an enlarged, flattened phenotype; and underwent a proliferation block that lasted at least 2 weeks after Nutlin-3a removal.

Experimental Design and Results Summary

Applications

Western Blot

Sample

Cell lysate

Primary Incubation

1:1000 dilution in 5% skim milk prepared in 1x TBST

Blocking Agent

5% skim milk

Secondary Incubation

1:4000 5% milk

Tertiary Incubation

None

Detection

ECL

Results Summary

The resistance to endoreduplication observed in some cell lines was associated with a prolonged 4N arrest after Nutlin-3a removal. Knockdown of either p53 or p21 immediately after Nutlin-3a removal could drive endoreduplication in otherwise resistant 4N cells.

DOI or PMID #

N/A

Additional Notes

N/A

Related Categories

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Summary

The Good

No background and strong signal

The Bad

None

The Bottom Line

This antibody is highly specific and works great for western blot. Highly recommended.

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