mannosyl-glycoprotein endo-beta-N-acetylglucosaminidase; N,N'-diacetylchitobiosyl beta-N-acetylglucosaminidase; endo-beta-N-acetylglucosaminidase; mannosyl-glycoprotein endo-beta-N-acetylglucosamidase; di-N-acetylchitobiosyl beta-N-acetylglucosamini • • •