1855505 endo H endo-beta-N-acetylglucosaminidase H 99 1855506 Endo H endoglucosaminidase H 6 1855507 endo-H endoglycosidase-H 4 1855508 endo-H endo-beta-N-acetylglucosaminidase is very close to that of the Streptomyces enzyme 1