Protocol Y-Z
Zymogram Gel Staining
Prior to staining zymogram gels, a sample proteases must
be first be allowed to renature and the allowed to 'break
down' the substrate contained in the gel.

Zymogram Renaturing Solution:
2.5% TritonX-100

Zymogram Development Solution:
50 mM Tris
200 mM NaCl
5 mM CaCl2 (anhydrous)
0.02% Brij-35
Adjust to pH 7.0

Zymogram Staining Solution:
40% methanol
10% acetic acid
0.5% Coomassie Blue R-250

Zymogram Destaining Solution:
40% methanol
10% acetic acid

Place gels in renaturing solution fo 30 min at RT.  Incubate
gels in development solution at 37°C for a minimum of 4 h.  
Highest sensitivity is typically achieved with overnight
incubation.  Optimal results should be determined
empirically.  Stain gels with Coomassie Brilliant Blue R-250
staining solution for at least 1 h @ RT.  Destain until clear
bands appear against the blue background, approximately
30-60 min.