1-guanidino-1-deoxy-scyllo-inositol + phosphate => 1-guanidino-1-deoxy-scyllo-inositol 4-phosphate + H2O
1-guanidino-1-deoxy-scyllo-inositol + phosphate => 1-guanidino-1-deoxy-scyllo-inositol 4-phosphate + h2o