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Difference between revisions of "Glycoside Hydrolase Family 81"

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== Substrate specificities ==
 
== Substrate specificities ==
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GH81 family are endo-&beta;(1,3)-glucanases ([{{EClink}}3.2.1.39 EC 3.2.1.39]) with diverse physiological roles, such as plant biomass degradation, cell cycling, and enzymatic pathogen defense. They are mostly found in bacteria and fungi, particularly abundant in ''Saccharomyces'', and ''Streptomyces'' species. Activity has been demonstrated on laminarin <cite>Fontaine1997, McGrath2006, Martin-Cuadrado2008, Zhou2013, Pluvinage2017, Kumar2018</cite>, curdlan <cite>Fontaine1997, Martin-Cuadrado2008, Pluvinage2017, Kumar2018</cite>, and pachyman  <cite>McGrath2006, Pluvinage2017</cite>.
 
 
Authors may get an idea of what to put in each field from ''Curator Approved'' [[Glycoside Hydrolase Families]]. ''(TIP: Right click with your mouse and open this link in a new browser window...)''
 
 
 
In the meantime, please see these references for an essential introduction to the CAZy classification system: <cite>DaviesSinnott2008 Cantarel2009</cite>.
 
 
 
 
== Kinetics and Mechanism ==
 
== Kinetics and Mechanism ==
 
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== References ==
 
== References ==
 
<biblio>
 
<biblio>
#Cantarel2009 pmid=18838391
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#Fontaine1997 pmid=9030754
#DaviesSinnott2008 Davies, G.J. and Sinnott, M.L. (2008) Sorting the diverse: the sequence-based classifications of carbohydrate-active enzymes. ''The Biochemist'', vol. 30, no. 4., pp. 26-32. [https://doi.org/10.1042/BIO03004026 Download PDF version].
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#McGrath2006 pmid=17115704
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#Martin-Cuadrado2008 pmid=17933563
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#Zhou2013 pmid=24100321
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#Pluvinage2017 pmid=28781080
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#Kumar2018 pmid=29870811
 
</biblio>
 
</biblio>
  
 
[[Category:Glycoside Hydrolase Families|GH081]]
 
[[Category:Glycoside Hydrolase Families|GH081]]

Revision as of 13:53, 21 July 2020

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This page is currently under construction. This means that the Responsible Curator has deemed that the page's content is not quite up to CAZypedia's standards for full public consumption. All information should be considered to be under revision and may be subject to major changes.


Glycoside Hydrolase Family GH81
Clan none
Mechanism inverting
Active site residues not known
CAZy DB link
http://www.cazy.org/GH81.html


Substrate specificities

GH81 family are endo-β(1,3)-glucanases (EC 3.2.1.39) with diverse physiological roles, such as plant biomass degradation, cell cycling, and enzymatic pathogen defense. They are mostly found in bacteria and fungi, particularly abundant in Saccharomyces, and Streptomyces species. Activity has been demonstrated on laminarin [1, 2, 3, 4, 5, 6], curdlan [1, 3, 5, 6], and pachyman [2, 5].

Kinetics and Mechanism

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Catalytic Residues

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Three-dimensional structures

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Family Firsts

First stereochemistry determination
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First catalytic nucleophile identification
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First general acid/base residue identification
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First 3-D structure
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References

  1. Fontaine T, Hartland RP, Beauvais A, Diaquin M, and Latge JP. (1997). Purification and characterization of an endo-1,3-beta-glucanase from Aspergillus fumigatus. Eur J Biochem. 1997;243(1-2):315-21. DOI:10.1111/j.1432-1033.1997.0315a.x | PubMed ID:9030754 [Fontaine1997]
  2. McGrath CE and Wilson DB. (2006). Characterization of a Thermobifida fusca beta-1,3-glucanase (Lam81A) with a potential role in plant biomass degradation. Biochemistry. 2006;45(47):14094-100. DOI:10.1021/bi061757r | PubMed ID:17115704 [McGrath2006]
  3. Martín-Cuadrado AB, Fontaine T, Esteban PF, del Dedo JE, de Medina-Redondo M, del Rey F, Latgé JP, and de Aldana CR. (2008). Characterization of the endo-beta-1,3-glucanase activity of S. cerevisiae Eng2 and other members of the GH81 family. Fungal Genet Biol. 2008;45(4):542-53. DOI:10.1016/j.fgb.2007.09.001 | PubMed ID:17933563 [Martin-Cuadrado2008]
  4. Zhou P, Chen Z, Yan Q, Yang S, Hilgenfeld R, and Jiang Z. (2013). The structure of a glycoside hydrolase family 81 endo-β-1,3-glucanase. Acta Crystallogr D Biol Crystallogr. 2013;69(Pt 10):2027-38. DOI:10.1107/S090744491301799X | PubMed ID:24100321 [Zhou2013]
  5. Pluvinage B, Fillo A, Massel P, and Boraston AB. (2017). Structural Analysis of a Family 81 Glycoside Hydrolase Implicates Its Recognition of β-1,3-Glucan Quaternary Structure. Structure. 2017;25(9):1348-1359.e3. DOI:10.1016/j.str.2017.06.019 | PubMed ID:28781080 [Pluvinage2017]
  6. Kumar K, Correia MAS, Pires VMR, Dhillon A, Sharma K, Rajulapati V, Fontes CMGA, Carvalho AL, and Goyal A. (2018). Novel insights into the degradation of β-1,3-glucans by the cellulosome of Clostridium thermocellum revealed by structure and function studies of a family 81 glycoside hydrolase. Int J Biol Macromol. 2018;117:890-901. DOI:10.1016/j.ijbiomac.2018.06.003 | PubMed ID:29870811 [Kumar2018]

All Medline abstracts: PubMed