1.02307

α-Chymotrypsin from bovine pancreas

cryst. lyophilized 350 U/mg for biochemistry

• NACRES: NA.21
• UNSPSC Code: 12352204

Properties

• form: solid
• potency: >4000 mg/kg LD₅₀, oral (rat)
• pH: 3-5 (10 g/L in H₂O)
• storage temp.: -10 to -25°C

Description

General description

α-Chymotrypsin (CT) is a member of the S1 family. It comprises a catalytic triad system including aspartate, histidine, and serine. It is produced by chymotrypsinogen in the pancreas and then secreted into the digestive tract.

Application

α-Chymotrypsin has been used to study its adsorption characteristics on solid/liquid interfaces under varying adsorption conditions.

Biochem/physiol Actions

α-Chymotrypsin (CT) closely denotes a group of digestive enzymes (trypsin, elastase) that hydrolyzes polypeptide chains. The catalytic triad system works together to regulate the nucleophilicity of the serine residue in catalysis. CT shows a capability to catalyze nonconventional synthetic reactions in water-miscible organic media. Additionally, it is also used as a tool in comparative studies of water-miscible and water-immiscible solvents.

Features and Benefits

• Easily obtainable due to small size
• Relatively stable

Analysis Note

Appearance (description):lyophilisate
Appearance (colour):slightly yellowish
Activity (ATEE, pH 8.0, 25 °C):≥ 350 U/mg
Spec. activity (calc. on protein):ca. 400

Safety Information

• signalword: Danger
• Hazard Classifications: Acute Tox. 4 Oral - Aquatic Acute 1 - Eye Irrit. 2 - Resp. Sens. 1 - Skin Irrit. 2 - STOT SE 3
• target_organs: Respiratory system
• Storage Class: 11 - Combustible Solids
• pictograms: GHS08,GHS07,GHS09
• hcodes: H302,H315,H319,H334,H335,H400
• pcodes: P261 - P264 - P273 - P301 + P312 - P302 + P352 - P305 + P351 + P338