[(1''->2')-ADP-alpha-D-ribose](n) + H2O = [(1''->2')-ADP-alpha-D-ribose](n-1) + ADP-D-ribose
[(1''->2')-adp-alpha-d-ribose](n) + h2o = [(1''->2')-adp-alpha-d-ribose](n-1) + adp-d-ribose
"poly(ADP-ribose) glycohydrolase"
"poly(adp-ribose) glycohydrolase"