ut ath ione . ▁ ▁This ▁en zym e ▁belongs ▁to ▁the ▁family ▁of ▁ox id ored uct ases , ▁specifically ▁those ▁acting ▁on ▁a ▁sul fur ▁group ▁of ▁don ors ▁with ▁a ▁dis ulf ide ▁as ▁accept or . ▁ ▁The ▁system atic ▁name ▁of ▁this ▁en zym e ▁class ▁is ▁A MP , s ulf ite : gl ut ath ione - dis ulf ide ▁ox id ored uct ase ▁( aden os ine - 5 '- ph osph os ulf ate - form ing ). ▁Other ▁names ▁in ▁common ▁use ▁include ▁ 5 '- aden y ly ls ulf ate ▁re duct ase ▁( also ▁used ▁for , ▁internal _ x ref ( ec _ num ( 1 , 8 , 9 9 , 2 )) ), ▁A MP , s ulf ite : ox id ized - gl ut ath ione ▁ox id ored uct ase , ▁( aden os ine - 5 '- ph osph os ulf ate - form ing ), ▁and ▁plant - type ▁ 5 '- aden y ly ls ulf ate ▁re duct ase . ▁In ▁plants , ▁A PS ▁is ▁reduced ▁by ▁the ▁pl ast id ic ▁en zym e ▁A PS ▁re duct ase ▁( AP R ; ▁EC ▁ 1 . 8 . 4 . 9 ) ▁in ▁the ▁presence ▁of ▁phys i ological ▁concentr ations ▁of ▁reduced ▁gl ut ath ione ▁( G SH ), ▁which ▁acts ▁as ▁an ▁electron ▁don or . ▁ ▁References ▁▁▁▁▁▁▁▁ ▁Category : EC ▁