6 ), ▁Australian ▁model ▁ ▁Char acters ▁K ry stal , ▁a ▁Japanese ▁video ▁game ▁character ▁from ▁the ▁Star ▁Fox ▁series ▁K ry stal , ▁a ▁character ▁from ▁the ▁Japanese ▁video ▁game ▁Dark ▁W izard ▁K ry stal ▁Care y , ▁from ▁the ▁American ▁soap ▁opera ▁All ▁My ▁Children ▁K ry stal ▁B ouch ard , ▁from ▁Sw amp ▁Sh ark ▁ ▁Br ands ▁K ry stal ▁( r estaur ant ), ▁one ▁of ▁the ▁oldest ▁fast - fo od ▁ch ains ▁in ▁the ▁United ▁States , ▁founded ▁in ▁ 1 9 3 2 ▁ ▁See ▁also ▁ ▁K ry stal ▁( film ) ▁ ▁Cry stal ▁( disambiguation ) ▁ ▁Crist al ▁( disambiguation ) ▁ ▁Krist al ▁( disambiguation ) ▁ ▁Krist ol <0x0A> </s> ▁In ▁en zym ology , ▁a ▁ 3 - de h ydro - L - g ul on ate ▁ 2 - de h ydro gen ase ▁() ▁is ▁an ▁en zym e ▁that ▁catal y zes ▁the ▁chemical ▁reaction : ▁▁ 3 - de h ydro - L - g ul on ate ▁+ ▁N AD ( P )+ ▁ ▁( 4 R , 5 S )- 4 , 5 , 6 - tri h ydro xy - 2 , 3 - d io x o hex ano ate ▁+ ▁N AD ( P ) H ▁+ ▁H + ▁ ▁The ▁ 3 ▁substr ates ▁of ▁this ▁en zym e ▁are ▁ 3 - de h ydro - L - g ul on ate ,