Western blot analysis of extracts from HeLa, HT-1080, and NIH/3T3 cells using MT1-MMP (D1E4) Rabbit mAb.
|MW (kDa)||50, 62|
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 BSA, 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.
From sample preparation to detection, the reagents you need for your Western Blot are now in one convenient kit: #12957 Western Blotting Application Solutions Kit
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: 10
MT1-MMP (D1E4) Rabbit mAb recognizes endogenous levels of total MT1-MMP protein.
Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to residues surrounding Met293 of human MT1-MMP protein.
The matrix metalloproteinase (MMP) family of proteases are a group of zinc-dependent enzymes that target extracellular proteins, including growth factors, cell surface receptors, adhesion molecules, and other proteases (1). Matrix metalloproteinases can be broadly categorized based on function and cellular localization, and include six distinct membrane-type (MT) metalloproteinases that share a transmembrane domain and short cytoplasmic tail (2). Membrane type-1 matrix metalloproteinase (MT1-MMP, MMP14) is involved in regulating development, angiogenesis, tissue remodeling, and tumor progression (3-6). MT1-MMP and other metalloproteinases promote tumor cell invasion by accumulating in specialized structures known as invadopodia, which remodel the ECM and allow tumor cells to breach the basement membrane (7). The abundance and presence of MT1-MMP at the cell surface is controlled by targeted endocytosis, which may be regulated by the MT1-MMP cytoplasmic domain (8). MT1-MMP protease activity can be further regulated through homodimer formation, autocatalytic processing, domain shedding and the interaction with inhibitory proteins. Activation of the MT1-MMP proenzyme results from cleavage of full-length MT1-MMP by furin in the trans-Golgi network, which removes the inhibitory propeptide domain (9). At the cell surface, MT1-MMP can be found in a protein complex with the soluble metalloproteinase MMP2 and the MMP inhibitor TIMP2. MT1-MMP mediated cleavage and activation of MMP2 generates the active MMP2 collagenase, which plays important roles in ECM remodeling and tumor invasion (10). MT1-MMP interacts with a large number of substrates in addition to MMP2, including interstitial collagens, adhesive glycoproteins (i.e. laminin), and cell surface receptors (11).
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