arabinan endo-1,5-alpha-L-arabinanase; endo-1,5-alpha-L-arabinanase; endo-alpha-1,5-arabanase; endo-arabanase; 1,5-alpha-L-arabinan 1,5-alpha-L-arabinanohydrolase; arabinan endo-1,5-alpha-L-arabinosidase (misleading)