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Difference between revisions of "Glycoside Hydrolase Family 80"

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== Substrate specificities ==
 
== Substrate specificities ==
Glycoside hydrolases of family 80 include bacterial proteins. They were characterized from proteobacteria <cite>Park1999</cite> of from species belonging to the Bacteroidetes/Chlorobi group <cite>Matsuda2001 Yi2004</cite>.
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Glycoside hydrolases of family 80 include bacterial proteins. They were characterized from proteobacteria <cite>Park1999</cite> of from species belonging to the Bacteroidetes/Chlorobi group <cite>Matsuda2001 Yi2004</cite>. They are beta-1,4-chitosanases with endo-splitting activity. Chitin or cellulose are not hydrolyzed <cite>Park1999 Yi2004</cite>. Chitosan hexamer (GlcN)<sub>6</sub> is preferentially hydrolyzed into two trimeric molecules <cite>Shimono2002</cite>.
new sentence here<cite>Shimono2002</cite>
 
 
new sentence here<cite>Tremblay2000 Sigrist2010</cite>
 
new sentence here<cite>Tremblay2000 Sigrist2010</cite>
  

Revision as of 08:41, 14 July 2011

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Glycoside Hydrolase Family GH80
Clan GH-I
Mechanism not determined
Active site residues inferred
CAZy DB link
https://www.cazy.org/GH80.html


Substrate specificities

Glycoside hydrolases of family 80 include bacterial proteins. They were characterized from proteobacteria [1] of from species belonging to the Bacteroidetes/Chlorobi group [2, 3]. They are beta-1,4-chitosanases with endo-splitting activity. Chitin or cellulose are not hydrolyzed [1, 3]. Chitosan hexamer (GlcN)6 is preferentially hydrolyzed into two trimeric molecules [4]. new sentence here[5, 6]


Kinetics and Mechanism

Content is to be added here.


Catalytic Residues

Content is to be added here.


Three-dimensional structures

Content is to be added here.


Family Firsts

First primary sequence determination
Chitosanase ChoA from Matsuebacter chitosanotabidus 3001 (now Mitsuaria chitosanitabida) [1, 7]
First stereochemistry determination
Cite some reference here, with a short (1-2 sentence) explanation .
First catalytic nucleophile identification
Cite some reference here, with a short (1-2 sentence) explanation .
First general acid/base residue identification
Cite some reference here, with a short (1-2 sentence) explanation .
First 3-D structure
Cite some reference here, with a short (1-2 sentence) explanation.

References

<biblio>

  1. Park1999 pmid=10542164
  2. Matsuda2001 Matsuda, Y., Iida, I., Shinogi, T., Kakutani, K., Nonomura, T., Toyoda, H. (2001) In vitro suppression of mycelial growth of Fusarium oxysporum by extracellular chitosanase of Sphingobacterium multivorum and cloning of the chitosanase gene csnSM1. J. Gen. Plant Pathol. 67, 318-324.
  3. Yi2004 Yi, J.-H., Jang, H.-K., Lee, S.-J., Lee, K.-E., Choi, S.-G. (2004) Purification and properties of chitosanase from chitinolytic beta-Proteobacterium KNU3. J. Microbiol. Biotechnol. 14, 337-343.
  4. Shimono2002 pmid=11754739
  5. Tremblay2000 pmid=11068683
  6. Sigrist2010 pmid=19858104
  7. Amakata2005 pmid=16166689