β-Agarase
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Agarase (EC 3.2.1.81, AgaA, AgaB, endo-β-agarase, agarose 3-glycanohydrolase) is an enzyme with systematic name agarose 4-glycanohydrolase. It is found in agarolytic bacteria and is the first enzyme in the agar catabolic pathway.[1] It is responsible for allowing them to use agar as their primary source of carbon and enables their ability to thrive in the ocean.
β-Agarase | |||||||||
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Identifiers | |||||||||
EC no. | 3.2.1.81 | ||||||||
CAS no. | 37288-57-6 | ||||||||
Databases | |||||||||
IntEnz | IntEnz view | ||||||||
BRENDA | BRENDA entry | ||||||||
ExPASy | NiceZyme view | ||||||||
KEGG | KEGG entry | ||||||||
MetaCyc | metabolic pathway | ||||||||
PRIAM | profile | ||||||||
PDB structures | RCSB PDB PDBe PDBsum | ||||||||
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Agarases are classified as either α-agarases or β-agarases based upon whether they degrade α or β linkages in agarose, breaking them into oligosaccharides. When secreted, α-agarases yield oligosaccharides with 3.6 anhydro-L-galactose at the reducing end whereas β-agarases result in D-galactose residues.[2]