MetaCyc Pathway: laminaribiose degradation

Pathway diagram: laminaribiose degradation

This view shows enzymes only for those organisms listed below, in the list of taxa known to possess the pathway. If an enzyme name is shown in bold, there is experimental evidence for this enzymatic activity.

Superclasses: Degradation/Utilization/Assimilation Carbohydrates Degradation Sugars Degradation

Some taxa known to possess this pathway include ? : Euglena gracilis

Expected Taxonomic Range: cellular organisms

The degradation of carbohydrates from agricultural byproducts is a massive ecological and industrial management issue. Disaccharide degradation pathways involve the breakdown of the two monosaccharide units. Some examples include the sucrose degradation VII (sucrose 3-dehydrogenase), melibiose degradation, trehalose degradation II (trehalase), lactose degradation II and maltose degradation pathways.

Some microbes possess specialized disaccharide phophorylases that catalyze the transfer of a glycosyl moiety to a phosphate when a disaccharide is the donor substrate. Several disaccharide phosphorylases that catalyze the conversion of sucrose, trehalose, cellobiose etc have been extensively characterized.

Laminaribiose is a dissaccharide found in many agricultural plants. This pathway describes its phosphorolytic degradation by one such enzyme characterized from the unicellular flagellate protist Euglena gracilis [Dwyer70].

Created 29-Mar-2011 by Pujar A , Boyce Thompson Institute


Dwyer70: Dwyer MR, Smillie RM (1970). "A light-induced beta-1,3-glucan breakdown associated with the differentiation of chloroplasts in Euglena gracilis." Biochim Biophys Acta 216(2);392-401. PMID: 5504634

Other References Related to Enzymes, Genes, Subpathways, and Substrates of this Pathway

Latendresse13: Latendresse M. (2013). "Computing Gibbs Free Energy of Compounds and Reactions in MetaCyc."

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Please cite the following article in publications resulting from the use of MetaCyc: Caspi et al, Nucleic Acids Research 42:D459-D471 2014
Page generated by SRI International Pathway Tools version 19.0 on Sat Apr 25, 2015, biocyc14.