ID 2.7.1.119 DE hygromycin-B 7''-O-kinase. AN APH(7''). AN hygromycin-B kinase. AN hygromycin B phosphotransferase. CA hygromycin B + ATP = 7''-O-phosphohygromycin B + ADP + H(+). CC -!- Phosphorylates the antibiotics hygromycin B, 1-N-hygromycin B and CC destomycin, but not hygromycin B2, at the 7''-hydroxy group in the CC destomic acid ring. DR P09979, KHYB_STRHY ; //