CAZypedia needs your help!
We have many unassigned pages in need of Authors and Responsible Curators. See a page that's out-of-date and just needs a touch-up? - You are also welcome to become a CAZypedian. Here's how.
Scientists at all career stages, including students, are welcome to contribute.
Learn more about CAZypedia's misson here and in this article.
Totally new to the CAZy classification? Read this first.
Difference between revisions of "Polysaccharide Lyase Family 19"
Harry Brumer (talk | contribs) m (Text replacement - "\^\^\^(.*)\^\^\^" to "$1") |
|||
| (3 intermediate revisions by the same user not shown) | |||
| Line 1: | Line 1: | ||
| − | * [[Responsible Curator]]: | + | * [[Responsible Curator]]: [[User:Bernard Henrissat|Bernard Henrissat]] |
---- | ---- | ||
| + | |||
| + | {{CuratorApproved}} | ||
| + | {{DeletedFamily}} | ||
=== PL19 is a deleted family === | === PL19 is a deleted family === | ||
| − | |||
Entries in [[Glycoside Hydrolase Family 91]] were reclassified to [[Polysaccharide Lyase Family 19]] on 30 July 2008 due to recommendations of the NC-IUBMB, which stated that these enzymes are lyases, as there is no water involved in the reaction. Indeed, polysaccharide cleavage occurs via intramolecular hydroxide attack, rather than glycosidic bond hydrolysis (see EC [{{EClink}}4.2.2.17 4.2.2.17] and EC [{{EClink}}4.2.2.18 4.2.2.18]). | Entries in [[Glycoside Hydrolase Family 91]] were reclassified to [[Polysaccharide Lyase Family 19]] on 30 July 2008 due to recommendations of the NC-IUBMB, which stated that these enzymes are lyases, as there is no water involved in the reaction. Indeed, polysaccharide cleavage occurs via intramolecular hydroxide attack, rather than glycosidic bond hydrolysis (see EC [{{EClink}}4.2.2.17 4.2.2.17] and EC [{{EClink}}4.2.2.18 4.2.2.18]). | ||
| − | The family was ''placed back'' to [[Glycoside Hydrolase Family 91]] on 20 April 2010 due to direct analogy with the lytic transglycosidases of [[GH23]], [[GH102]], [[GH103]], and [[GH104]] and in particular the observation of a hydrolase (di-fructofuranose 1,2':2,3' dianhydride hydrolase, DFA-IIIase) in this family <cite>Sakurai1997 Saito2003</cite>. | + | The family was ''placed back'' to [[Glycoside Hydrolase Family 91]] on 20 April 2010 due to direct analogy with the lytic transglycosidases of [[GH23]], [[GH102]], [[GH103]], and [[GH104]] and in particular the observation of a hydrolase (di-fructofuranose 1,2':2,3' dianhydride hydrolase, DFA-IIIase) in this family <cite>Sakurai1997 Saito2003 Lombard2010</cite>. |
<!-- The data in the table below should be updated by the Author/Curator according to current information on the family --> | <!-- The data in the table below should be updated by the Author/Curator according to current information on the family --> | ||
| Line 23: | Line 25: | ||
#Sakurai1997 H. Sakurai, A. Yokota, Y. Sumita, Y. Mori, H. Matsui and F. Tomita, Metabolism of DFA III by Arthrobacter sp. H65-7: purification and properties of a DFA III hydrolysis enzyme (DFA IIIase). Biosci. Biotechnol. Biochem. 61 (1997), pp. 989–993. [http://dx.doi.org/10.1271/bbb.61.989 DOI: 10.1271/bbb.61.989] | #Sakurai1997 H. Sakurai, A. Yokota, Y. Sumita, Y. Mori, H. Matsui and F. Tomita, Metabolism of DFA III by Arthrobacter sp. H65-7: purification and properties of a DFA III hydrolysis enzyme (DFA IIIase). Biosci. Biotechnol. Biochem. 61 (1997), pp. 989–993. [http://dx.doi.org/10.1271/bbb.61.989 DOI: 10.1271/bbb.61.989] | ||
#Saito2003 pmid=16233453 | #Saito2003 pmid=16233453 | ||
| + | #Lombard2010 pmid=20925655 | ||
</biblio> | </biblio> | ||
| − | + | ||
| − | [[Category:Polysaccharide Lyase Families| | + | [[Category:Polysaccharide Lyase Families|PL019]] |
| − | |||
Latest revision as of 13:20, 18 December 2021
This page has been approved by the Responsible Curator as essentially complete. CAZypedia is a living document, so further improvement of this page is still possible. If you would like to suggest an addition or correction, please contact the page's Responsible Curator directly by e-mail.
This family has been deleted from the CAZy classification. A specific explanation may be found below.
PL19 is a deleted family
Entries in Glycoside Hydrolase Family 91 were reclassified to Polysaccharide Lyase Family 19 on 30 July 2008 due to recommendations of the NC-IUBMB, which stated that these enzymes are lyases, as there is no water involved in the reaction. Indeed, polysaccharide cleavage occurs via intramolecular hydroxide attack, rather than glycosidic bond hydrolysis (see EC 4.2.2.17 and EC 4.2.2.18).
The family was placed back to Glycoside Hydrolase Family 91 on 20 April 2010 due to direct analogy with the lytic transglycosidases of GH23, GH102, GH103, and GH104 and in particular the observation of a hydrolase (di-fructofuranose 1,2':2,3' dianhydride hydrolase, DFA-IIIase) in this family [1, 2, 3].
| CAZy DB links | |
| http://www.cazy.org/fam/GH91.html | |
| http://www.cazy.org/fam/PL19.html |
References
-
H. Sakurai, A. Yokota, Y. Sumita, Y. Mori, H. Matsui and F. Tomita, Metabolism of DFA III by Arthrobacter sp. H65-7: purification and properties of a DFA III hydrolysis enzyme (DFA IIIase). Biosci. Biotechnol. Biochem. 61 (1997), pp. 989–993. DOI: 10.1271/bbb.61.989
- Saito K, Sumita Y, Nagasaka Y, Tomita F, and Yokota A. (2003). Molecular cloning of the gene encoding the di-D-Fructofuranose 1,2':2,3' dianhydride hydrolysis enzyme (DFA IIIase) from Arthrobacter sp. H65-7. J Biosci Bioeng. 2003;95(5):538-40. DOI:10.1016/s1389-1723(03)80058-0 |
- Lombard V, Bernard T, Rancurel C, Brumer H, Coutinho PM, and Henrissat B. (2010). A hierarchical classification of polysaccharide lyases for glycogenomics. Biochem J. 2010;432(3):437-44. DOI:10.1042/BJ20101185 |