pt id ase ▁specific ity . ▁Cle aves ▁Pro - Le u - A la - G ln - A la - Val - Arg - Ser - Ser - Ser ▁in ▁the ▁memb rane - bound , ▁ 2 6 - k Da ▁form ▁of ▁tum or ▁ne c ros is ▁factor ▁alpha ▁( T NF alpha ). ▁Similarly ▁cle aves ▁other ▁memb rane - anch ored , ▁cell - sur face ▁prote ins ▁to ▁" sh ed " ▁the ▁ext rac ell ular ▁domains ▁ ▁This ▁en zym e ▁belongs ▁to ▁the ▁pe pt id ase ▁family ▁M 1 2 . ▁ ▁References ▁ ▁External ▁links ▁▁▁▁ ▁Category : EC ▁ 3 . 4 . 2 4 <0x0A> </s> ▁O ph ich th us ▁bre v ica ud atus ▁is ▁an ▁e el ▁in ▁the ▁family ▁O ph ich th idae ▁( w orm / s nake ▁e els ). ▁It ▁was ▁described ▁by ▁Ch u ▁Y uan - T ing , ▁Wu ▁Han - Lin ▁and ▁Jin ▁X in - Bo ▁in ▁ 1 9 8 1 . ▁It ▁is ▁a ▁marine , ▁subt rop ical ▁e el ▁which ▁is ▁known ▁from ▁its ▁type ▁local ity ▁in ▁the ▁Taiwan ▁Stra it , ▁in ▁the ▁north western ▁Pacific ▁Ocean . ▁ ▁References ▁ ▁bre v ica ud atus ▁Category : F ish ▁described ▁in ▁ 1 9 8 1 <0x0A> </s> ▁Sir ▁Charles ▁Pe ers ▁( 1 6 6 1 ▁– ▁ 2 9 ▁January ▁ 1 7 3 7 )