2.7.7.47 streptomycin 3''-adenylyltransferase; streptomycin adenylate synthetase; streptomycin adenyltransferase; streptomycin adenylylase; streptomycin adenylyltransferase; streptomycin-spectinomycin adenylyltransferase; AAD (3''); aminoglycoside 3''-adenyl • • •