Polysaccharide Lyase Family 17

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.

• Author: ^^^Emil Stender^^^
• Responsible Curator: ^^^Birte Svensson^^^

---

Polysaccharide Lyase Family 17
3D structure	(α/α)6 barrel + anti-parallel β-sheet
Mechanism	β-eliminationg
Charge neutralizer	Asparagine and histidine
Active site residues	known
CAZy DB link
https://www.cazy.org/PL17.html

Substrate specificities

' PL17 currently contains 2 subfamilies [1] as well as several proteins currently not assigned to any subfamily. Subfamily 2 has been shown to be exolytic alginate lyases In the meantime, please see these references for an essential introduction to the CAZy classification system: [2, 3].

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 stereochemistry determination

Content is to be added here.

First catalytic nucleophile identification

Content is to be added here.

First general acid/base residue identification

Content is to be added here.

First 3-D structure

Content is to be added here.

References

2. 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. Download PDF version.

3. Cantarel BL, Coutinho PM, Rancurel C, Bernard T, Lombard V, and Henrissat B. (2009). The Carbohydrate-Active EnZymes database (CAZy): an expert resource for Glycogenomics. Nucleic Acids Res. 2009;37(Database issue):D233-8. DOI:10.1093/nar/gkn663 |
4. 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 |
5. Jagtap SS, Hehemann JH, Polz MF, Lee JK, and Zhao H. (2014). Comparative biochemical characterization of three exolytic oligoalginate lyases from Vibrio splendidus reveals complementary substrate scope, temperature, and pH adaptations. Appl Environ Microbiol. 2014;80(14):4207-14. DOI:10.1128/AEM.01285-14 |
6. Park D, Jagtap S, and Nair SK. (2014). Structure of a PL17 family alginate lyase demonstrates functional similarities among exotype depolymerases. J Biol Chem. 2014;289(12):8645-55. DOI:10.1074/jbc.M113.531111 |

7. Shin, J. W., Lee, O. K., Park, H. H., Kim, H. S., and Lee, E. Y. (2015) Molecular characterization of a novel oligoalginate lyase consisting of AlgL- and heparinase II/III-like domains from Stenotrophomonas maltophilia KJ-2 and its application to alginate saccharification. Korean J. Chem. Eng. 32, 917–924

8. Wang L, Li S, Yu W, and Gong Q. (2015). Cloning, overexpression and characterization of a new oligoalginate lyase from a marine bacterium, Shewanella sp. Biotechnol Lett. 2015;37(3):665-71. DOI:10.1007/s10529-014-1706-z |

9. Haug, A., Larsen, B., and Smidsrod, O. (1967) Studies on sequence of uronic acid residues in alginic acid. Acta Chem. Scand. 21, 691–704

10. Haug, A., Larsen, B., and Smidsrod, O. (1966) A study of constitution of alginic acid by partial acid hydrolysis. Acta Chem. Scand. 20, 183–190