Hydrolyzes chitosan and chitooligosaccharides with retention of anomeric configuration. Has no activity against beta- D-galactoside, beta-D-glucuronide, beta-D-mannoside, chitin, glycol chitosan, cellulose, N,N'-diacetylchitibiose and pNP- GlcNAc. Exo-beta-D-glucosaminidase MLANAIAALLLGSGIASAAGHGSPLTSKAGHRAVIPDWDLKSSSDVSKDLGGLSKPGVDTSSWYHAGTSRCTIMGCLINAGVYNDEELWYSDNLNHVNWGQFSVPWVYRHEFALSPAKGKHFLLQTNGITSKADLFFNGKQIADKEYQSGAYAGRTYDITNLAAKKNALLVQVYPTDYLYDFALGYVDWNPYPSDNGSGIWRDITIKETGSVSMGPVSVLVDIDVPVEKNPARVTVRAEAQNLESHAVEFNAAAVISGNSCSGEALKQTIKLAPGEKKLVQFTQTIKTPSIWWPKQWGDQPLYTAEVTFSVKGAVSDTAQTKFGVRKVTSFVNQFNDTQYSVNGHPFQVIGGGYGADMFLRWDSERFTRIVEYMLDMHQNTIRLEGKMEHPELYEICDEYGLMVMPGWECCDKWEAWAYNDELAIFPPPVWDANDYETANYSMIHEAAMMQPHPSVLTFLVGSDFWPNDEAVVLYANALKNAGWQTPIIASASKRGFPALLGPGGMKMDGPYDWVPPNYWYDVEPSEDRLGAAFGFGSELGAGVGTPELSSLRRFLNQSDLDDLWKNPNKNLFHMSTNASSFYNRKIYNQGLWKRYGAPTSLDDYLLKAQMMDYEATRAQYEGFGALWTASRPATGVIYWMLNNAWPSLHWNQFDYYLHPAGSYFGTKVGSRIEHVAYNYQKKEIWVINHSLYQTGSRNIKVELIDMNGKQIAKKLVQVRTKANSGFKAMDISSDINKLSSVAFLRLVLSDEKGSVLSRNVYWVTKTIDELNWDESTWYYTPVSKFVDYTPLNTLATAQVSVTTSGGKHLPGIPGSQTRTVTLENKSSVPAVFIRLTLVDSKGNDVNPVSWSDNYVTLWPHEKLQLEVGGWDGSGDKIQISGKNIKATTVKL 892 gls93 EBDG_HYPJE