Figure 1. The migration patterns of protein markers on Novex® Tricine, IEF, and zymogram gels are shown. | Optimal resolution is achieved when protein bands migrate within the shaded regions. The numbered bands on the Tricine gel patterns correspond to the migration of Mark12™ Unstained Standard under denaturing conditions. The numbered bands on the zymogram gel patterns refer to the following proteases: Band 1: collagenase type I (140 kDa); Band 2: thermolysin (37 kDa); Band 3: chymotrypsin (30 kDa); Band 4: trypsin (19 kDa).