Western blot analysis of extracts from various cell lines using MMP-13 (E4W3T) Rabbit mAb (upper) and β-Actin (D6A8) Rabbit mAb #8457 (lower).
Supplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/ml BSA, 50% glycerol and less than 0.02% sodium azide. Store at –20°C. Do not aliquot the antibody.
For western blots, incubate membrane with diluted primary antibody in 5% w/v nonfat dry milk, 1X TBS, 0.1% Tween® 20 at 4°C with gentle shaking, overnight.
NOTE: Please refer to primary antibody product webpage for recommended antibody dilution.
NOTE: Prepare solutions with reverse osmosis deionized (RODI) or equivalent grade water.
Load 20 µl onto SDS-PAGE gel (10 cm x 10 cm).
NOTE: Volumes are for 10 cm x 10 cm (100 cm2) of membrane; for different sized membranes, adjust volumes accordingly.
* Avoid repeated exposure to skin.
posted June 2005
revised June 2020
Protocol Id: 263
MMP-13 (E4W3T) Rabbit mAb recognizes endogenous levels of total human MMP13 protein.
Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to residues in the carboxy terminal region of human MMP13 protein.
MMP-13 (collagenase 3) belongs to the matrix metalloproteinase (MMP) superfamily of enzymes that targets many extracellular proteins, including other proteases, growth factors, cell surface receptors, and adhesion molecules (1, 2). MMP-13 is a member of a subgroup of collagenases (including MMP-1, MMP-8, and MMP-18) that play an even more important function targeting fibrillar collagen. MMP-13 is synthesized as a latent proenzyme, and proteolytic removal of the inhibitory propeptide domain is required for enzyme activation. MMP-13 protein levels are regulated at the transcriptional level, via specific transcription factors and via promoter DNA methylation (3, 4). MMP-13 preferentially cleaves Type II collagen, and research studies have shown that aberrant upregulation of MMP-13 activity can lead to cartilage loss and osteoarthritis (5, 6). In addition, MMP-13 has been shown to promote cancer development, in part through enhancing tumor angiogenesis and metastases (7-9), suggesting that collagenase activity may serve as a useful marker of tumor progression (10).
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