show all | hide all No of entries

Information on EC 4.2.2.13 - exo-(1->4)-alpha-D-glucan lyase

for references in articles please use BRENDA:EC4.2.2.13
Please wait a moment until all data is loaded. This message will disappear when all data is loaded.
EC Tree
     4 Lyases
         4.2 Carbon-oxygen lyases
             4.2.2 Acting on polysaccharides
                4.2.2.13 exo-(1->4)-alpha-D-glucan lyase
IUBMB Comments
The enzyme catalyses the sequential degradation of (1->4)-alpha-D-glucans from the non-reducing end with the release of 1,5-anhydro-D-fructose. Thus, for an alpha-glucan containing n (1->4)-linked glucose units, the final products are 1 glucose plus (n-1) 1,5-anhydro-D-fructose. Maltose, maltosaccharides and amylose are all completely degraded. It does not degrade (1->6)-alpha-glucosidic bonds and thus the degradation of a branched glucan, such as amylopectin or glycogen, will result in the formation of 1,5-anhydro-D-fructose plus a limit dextrin. Other enzymes involved in the anhydrofructose pathway are EC 4.2.1.110 (aldos-2-ulose dehydratase), EC 4.2.1.111 (1,5-anhydro-D-fructose dehydratase) and EC 5.3.2.7 (ascopyrone tautomerase).
Specify your search results
Select one or more organisms in this record:
Word Map
The enzyme appears in viruses and cellular organisms
Synonyms
glase, alpha-1,4-glucan lyase, more
REACTION
REACTION DIAGRAM
COMMENTARY hide
ORGANISM
UNIPROT
LITERATURE
linear alpha-glucan = (n-1) 1,5-anhydro-D-fructose + D-glucose
show the reaction diagram
PATHWAY SOURCE
PATHWAYS
Select items on the left to see more content.