▁O ce ania ▁Category : G ast rop ods ▁described ▁in ▁ 1 9 0 0 ▁Category : T ax onomy ▁articles ▁created ▁by ▁Pol bot <0x0A> </s> ▁U bi quit in ▁car box yl - term inal ▁hyd rol ase ▁or ▁U bi quit in ▁specific ▁prote ase ▁ 1 1 ▁is ▁an ▁en zym e ▁that ▁in ▁humans ▁is ▁encoded ▁by ▁the ▁US P 1 1 ▁gene . ▁US P 1 1 ▁belongs ▁to ▁the ▁U bi quit in ▁specific ▁prote ases ▁family ▁( US P s ) ▁which ▁is ▁a ▁sub - family ▁of ▁the ▁De ub iqu it in ating ▁en zym es ▁( D UB s ). US P s ▁are ▁multiple ▁domain ▁prote ases ▁and ▁belong ▁to ▁the ▁C 1 9 ▁c yst e ine ▁prote ases ▁sub ‒ family . ▁Depending ▁on ▁their ▁domain ▁architecture ▁and ▁position ▁there ▁is ▁different ▁hom ology ▁between ▁the ▁various ▁members . ▁Gener ally ▁the ▁largest ▁domain ▁is ▁the ▁catal yt ic ▁domain ▁which ▁har b ours ▁the ▁three ▁resid ue ▁catal yt ic ▁tri ad ▁that ▁is ▁included ▁inside ▁conser ved ▁mot ifs ▁( C ys ▁and ▁His ▁boxes ). ▁The ▁catal yt ic ▁domain ▁also ▁contains ▁sequences ▁that ▁are ▁not ▁related ▁with ▁the ▁catal ysis ▁function ▁and ▁their ▁role ▁is ▁mostly ▁not ▁clearly ▁understood ▁at ▁present , ▁the ▁length ▁of ▁these ▁sequences ▁var ies ▁for ▁each ▁US P ▁and ▁therefore ▁the ▁length ▁of ▁the ▁whole ▁catal yt ic ▁domain ▁can ▁range ▁from ▁approximately ▁ 2 9 5 ▁to ▁