Proteins

Chromatographically purified. A lyophilized powder.
Biological activity: ≥2 units per mg dry weight Protease Type: Amino Acid Oxidase Molecular Weight: 78.7 kDa (Theoretical) Source: Porcine Kidney 
252-10101-1
$802.00  
 

Chromatographically purified. A dialyzed, lyophilized pre-activated powder.
Biological activity: ≥50 units per mg dry weight Protease Type: Arg-C Molecular Weight: 53.0 kDa (Theoretical) Source: Clostridium histolyticum 
252-10102-1
$64.60  
 

Chromatographically purified. A dialyzed, lyophilized, pre-activated powder. Supplied in 10 ug high recovery vials.
Biological activity: ≥50 units per mg dry weight Protease Type: Arg-C Molecular Weight: 53.0 kDa (Theoretical) Source: Clostridium histolyticum 
252-10103-1
$178.00  
+

Chromatographically purified. A solution in 100 mM sodium chloride. Chymotrypsin and trypsin less than 0.02%.
Biological activity: ≥170 units per mg protein Protease Type: Carboxypeptidase B Molecular Weight: 34.3 kDa (Folk et al. 1960) Source: Porcine Pancreas 
252-10104-1
$284.00  
 

A solution in 100 mM sodium chloride. PMSF treated to inhibit tryptic and chymotryptic activities. Chymotrypsin and trypsin are less than 0.02%.
Biological activity: ≥70 units per mg protein Protease Type: Carboxypeptidase B Molecular Weight: 34.3 kDa (Folk et al. 1960) Source: Porcine Pancreas 
252-10105-2
$76.50  
 

A highly purified preparation supplied as a lyophilized powder.
Biological activity: ≥50 units per mg protein Protease Type: Carboxypeptidase Y Molecular Weight: 64 kDa (Hayashi et al. 1973, and Mortensen et al. 2004) Source: Yeast 
252-10106-1
$732.00  
 

Crystallized as zymogen and activated. Dialyzed against 1 mM HCl and lyophilized.
Biological activity: ≥35 units per mg protein Protease Type: Chymotrypsin Molecular Weight: 25.6 kDa (Wilcox 1970) Source: Bovine Pancreas 
252-10107-2
$54.40  
 

Three times crystallized alpha chymotrypsin, which is an activation product of a 3X crystallized zymogen. Dialyzed against 1 mM HCl and lyophilized.
Biological activity: ≥45 units per mg protein Protease Type: Chymotrypsin Molecular Weight: 25.6 kDa (Wilcox 1970) Source: Bovine Pancreas 
252-10108-1
$68.00  
 

Chromatographically prepared by the procedure of Yapel et al., J. Amer. Chem. Soc., 88, 2573 (1966). A lyophilized powder.
Biological activity: ≥45 units per mg protein Protease Type: Chymotrypsin Molecular Weight: 25.6 kDa (Wilcox 1970) Source: Bovine Pancreas 
252-10109-1
$158.00  
 

Three times crystallized and treated with 1-chloro-3-tosylamido-7-amino-2-heptanone (TLCK) to inhibit trypsin activity (Shaw, et al., Biochemistry, 4, 2219, 1965). Dialyzed against 1 mM HCl to remove autolysis products and low molecular weight contaminants. Supplied as a dialyzed, lyophilized powder.
Biological activity: ≥45 units per mg protein Protease Type: Chymotrypsin Molecular Weight: 25.6 kDa (Wilcox 1970) Source: Bovine Pancreas 
252-10110-1
$47.60  
 

Three times crystallized and treated with 1-chloro-3-tosylamido-7-amino-2-heptanone (TLCK) to inhibit trypsin activity [Shaw, et al., Biochemistry, 4, 2219, (1965)]. Dialyzed to remove autolysis products and low molecular weight contaminants. Supplied as lyophilized powder.
Biological activity: ≥45 units per milligram protein Protease Type: Chymotrypsin Molecular Weight: 25.6 kDa (Wilcox 1970) Source: Bovine Pancreas 
252-10111-1
$303.00  
 

5X crystallized, electrophoretically homogeneous. Supplied as a dialyzed, lyophilized powder. Intrinsic activity less than 0.25 u/mg chymotrypsin.
Biological activity: Activates to at least 45 units per mg protein Protease Type: Chymotrypsin Molecular Weight: 25.6 kDa (Wilcox 1970) Source: Bovine Pancreas 
252-10112-2
$351.00  
 

Chromatographically purified. Less than 50 caseinase units per milligram. Supplied as a lyophilized powder.
Biological activity: ≥500 units per mg dry weight Protease Type: Collagenase Molecular Weight: 68-130 kDa Source: Clostridium histolyticum 
252-10113-1
$326.00  
 

The original balance of enzymatic activities. Each lot assayed for collagenase, caseinase, clostripain and tryptic activities. Suggested for epithelial, liver, lung and adrenal primary cell isolations. A dialyzed, lyophilized powder.
Biological activity: ≥125 units per mg dry weight Protease Type: Collagenase Molecular Weight: 68-130 kDa Source: Clostridium histolyticum 
252-10114-1
$64.60  
 

Collagenase, Type 1, which is filtered through a 0.22 micron membrane and lyophilized in vials.
Biological activity: ≥125 units per mg dry weight Protease Type: Collagenase Molecular Weight: 68-130 kDa Source: Clostridium histolyticum 
252-10115-1
$83.30  
 

Prepared to contain higher clostripain activity. Suggested for bone, heart, liver, thyroid and salivary primary cell isolation. Supplied as a dialyzed, lyophilized powder.
Biological activity: ≥125 units per mg dry weight Protease Type: Collagenase Molecular Weight: 68-130 kDa Source: Clostridium histolyticum 
252-10116-1
$64.60  
 

Collagenase, Type 2, which is filtered through a 0.22 micron membrane and lyophilized in vials.
Biological activity: ≥125 units per mg dry weight Protease Type: Collagenase Molecular Weight: 68-130 kDa Source: Clostridium histolyticum 
252-10117-1
$83.30  
 

Lower in secondary proteolytic contaminant activities but with typical collagenase activity. Suggested for mammary primary cell isolation. A dialyzed, lyophilized powder.
Biological activity: ≥100 units per mg dry weight Protease Type: Collagenase Molecular Weight: 68-130 kDa Source: Clostridium histolyticum 
252-10118-1
$64.60  
 

Collagenase, Type 3, which is filtered through a 0.22 micron membrane and lyophilized in vials.
Biological activity: ≥100 units per mg dry weight Protease Type: Collagenase Molecular Weight: 68-130 kDa Source: Clostridium histolyticum 
252-10119-1
$83.30  
 

Prepared to contain lower tryptic activity levels to limit damage to membrane proteins and receptors but with normal to above normal collagenase activity. Suggested for pancreatic islet primary isolation. A dialyzed, lyophilized powder.
Biological activity: ≥160 units per mg dry weight Protease Type: Collagenase Molecular Weight: 68-130 kDa Source: Clostridium histolyticum 
252-10120-1
$64.60  
 
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