Abstract
1. 1. A variety of different digestive proteinases from the gut of the firebrat Thermobia domestica (Thysanura: Lepismatidae) was partially purified and characterized by electrophoretic methods. 2. 2. The proteolytic enzymes could be identified as a trypsin-like proteinase with a p I of 4.95 and two charge isomer cysteine proteinases with a p I of 3.5 and 3.7. 3. 3. The hydrolytic activity of the trypsin-like proteinase is optimal at pH 9.0, the cysteine proteinases have optimal activity at pH 6.0. 4. 4. The M r , was estimated by isomer analysis to be 21,000 for the trypsin-like proteinase and 42,000 for the cysteine proteinases.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Comparative Biochemistry and Physiology -- Part B: Biochemistry and Molecular Biology
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
