Protein
Intracellular exo-alpha-(1->5)-L-arabinofuranosidase 1
Organism
Bacillus subtilis (strain 168)
Function
Involved in the degradation of arabinan and is a key enzyme in the complete degradation of the plant cell wall. Catalyzes the cleavage of terminal alpha-(1->5)-arabinofuranosyl bonds in different hemicellulosic homopolysaccharides (branched and debranched arabinans). It acts preferentially on arabinotriose, arabinobiose and linear alpha-(1->5)-L-arabinan, and is much less effective on branched sugar beet arabinan.
Similarity
Belongs to the glycosyl hydrolase 51 family.
Sequence
MKKARMIVDKEYKIGEVDKRIYGSFIEHMGRAVYEGIYEPDHPEADEDGFRKDVQSLIKELQVPIIRYPGGNFLSGYNWEDGVGPVENRPRRLDLAWQTTETNEVGTNEFLSWAKKVNTEVNMAVNLGTRGIDAARNLVEYCNHPKGSYWSDLRRSHGYEQPYGIKTWCLGNEMDGPWQIGHKTADEYGRLAAETAKVMKWVDPSIELVACGSSNSGMPTFIDWEAKVLEHTYEHVDYISLHTYYGNRDNNLPNYLARSMDLDHFIKSVAATCDYVKAKTRSKKTINLSLDEWNVWYHSNEADKKVEPWITARPILEDIYNFEDALLVGSLLITMLQHADRVKIACLAQLVNVIAPIMTEKGGEAWRQPIFYPYMHASVYGRGESLKPLISSPKYDCSDFTDVPYVDAAVVYSEEEETLTIFAVNKAEDQMETEISLRGFESYQIAEHIVLEHQDIKATNQHNRKNVVPHSNGSSSVSENGLTAHFTPLSWNVIRLKKQS