Sandbox Reserved 972

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Previous studies (???) reveal that IDE uses an exosite to interact with the N-terminal end of its substrate (???), away from the catalytic site. This particular catch allows multiple cleavages of substrates by IDE. It was also observed that the binding of bradykinin occurs at the exosite and not the catalytic site.
Previous studies (???) reveal that IDE uses an exosite to interact with the N-terminal end of its substrate (???), away from the catalytic site. This particular catch allows multiple cleavages of substrates by IDE. It was also observed that the binding of bradykinin occurs at the exosite and not the catalytic site.
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==Insuline degrading enzyme (IDE)==
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==Structure of the complex==
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===Insuline degrading enzyme (IDE)===
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IDE (EC 3.4.24.56) is a human enzyme of the metallopeptidase family, not well-known yet. It is composed by more than 1000 residues and has a huge catalytic cavity. It is made of 2 parts linked by a loop, and it switches between an open and a close state. The size of its catalytic chamber allows the binding of peptides (70 amino acids long). IDE hydrolyzes a lot of substrates which have many differents biological activities. Its substrate can be insuline, glucagon, amyline or bradykinin.
IDE (EC 3.4.24.56) is a human enzyme of the metallopeptidase family, not well-known yet. It is composed by more than 1000 residues and has a huge catalytic cavity. It is made of 2 parts linked by a loop, and it switches between an open and a close state. The size of its catalytic chamber allows the binding of peptides (70 amino acids long). IDE hydrolyzes a lot of substrates which have many differents biological activities. Its substrate can be insuline, glucagon, amyline or bradykinin.
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'''Exosite: an essential element for the catalysis'''
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===Exosite: an essential element for the catalysis===
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'''Catalytic mechanism'''
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===Catalytic mechanism===
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===Bradykinin===
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==Bradykinin==
Bradykinin is a short nonapeptide of the family of kinins. It's in response to an inflammatory envent and serves as a mediator of pain, inflammation and vasodilatation.
Bradykinin is a short nonapeptide of the family of kinins. It's in response to an inflammatory envent and serves as a mediator of pain, inflammation and vasodilatation.
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We supposed that IDE may bind two molecules of bradykinin at the same time
We supposed that IDE may bind two molecules of bradykinin at the same time
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== Function ==
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==Interactions between bradykinin and IDE==
==Degradation reaction of bradykinin by IDE==
==Degradation reaction of bradykinin by IDE==

Revision as of 22:59, 8 January 2015

This Sandbox is Reserved from 15/11/2014, through 15/05/2015 for use in the course "Biomolecule" taught by Bruno Kieffer at the Strasbourg University. This reservation includes Sandbox Reserved 951 through Sandbox Reserved 975.
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References

  1. Hanson, R. M., Prilusky, J., Renjian, Z., Nakane, T. and Sussman, J. L. (2013), JSmol and the Next-Generation Web-Based Representation of 3D Molecular Structure as Applied to Proteopedia. Isr. J. Chem., 53:207-216. doi:http://dx.doi.org/10.1002/ijch.201300024
  2. Herraez A. Biomolecules in the computer: Jmol to the rescue. Biochem Mol Biol Educ. 2006 Jul;34(4):255-61. doi: 10.1002/bmb.2006.494034042644. PMID:21638687 doi:10.1002/bmb.2006.494034042644
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