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Polysaccharide Lyase Family 32
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This family has been deleted from the CAZy classification. A specific explanation may be found below.
Substrate specificities
The PL32 family was created following the functional characterization of the ORF “HMPREF1071_02769” from Bacteroides salyersiae CL02T12C01 (EIY62149.1), which showed endo-mannuronan lyase activity (EC 4.2.2.3) [1]. Shortly afterwards, the sequence was reclassified as PL_nc on the basis of structural modelling revealing that the catalytic domain was restricted to the N-terminal domain [2]. The small number of sequences and the proximity to the PL14 and PL36 families do not allow the creation of a new PL family.
References
- Helbert W, Poulet L, Drouillard S, Mathieu S, Loiodice M, Couturier M, Lombard V, Terrapon N, Turchetto J, Vincentelli R, and Henrissat B. (2019). Discovery of novel carbohydrate-active enzymes through the rational exploration of the protein sequences space. Proc Natl Acad Sci U S A. 2019;116(13):6063-6068. DOI:10.1073/pnas.1815791116 |
- Drula E, Garron ML, Dogan S, Lombard V, Henrissat B, and Terrapon N. (2022). The carbohydrate-active enzyme database: functions and literature. Nucleic Acids Res. 2022;50(D1):D571-D577. DOI:10.1093/nar/gkab1045 |