▁of ▁the ▁active ▁site ▁to ▁the ▁transition ▁state , ▁which ▁propos es ▁the ▁active ▁site ▁electro stat ics ▁is ▁complement ary ▁to ▁the ▁substr ate ▁transition ▁state . ▁ ▁K SI ▁has ▁also ▁been ▁a ▁model ▁system ▁for ▁studying ▁protein ▁fol ding . ▁Kim ▁et ▁al . ▁studied ▁the ▁effect ▁of ▁fol ding ▁and ▁t ert i ary ▁structure ▁on ▁the ▁function ▁of ▁K SI . ▁ ▁References ▁ ▁Further ▁reading ▁▁▁▁▁▁▁▁▁▁▁▁ ▁Category : EC ▁ 5 . 3 . 3 ▁Category : En zym es ▁of ▁known ▁structure <0x0A> </s> ▁Hop los cop a ▁is ▁a ▁genus ▁of ▁sn out ▁moth s ▁in ▁the ▁sub family ▁H eli oth el inae ▁of ▁the ▁family ▁Cr amb idae . ▁The ▁genus ▁was ▁described ▁by ▁Edward ▁Mey rick ▁in ▁ 1 8 8 6 , ▁with ▁Hop los cop a ▁a stra pi as ▁as ▁type ▁species . ▁ ▁A ▁recent ▁tax onom ic ▁study ▁using ▁morph ology ▁and ▁DNA ▁data ▁described ▁an ▁additional ▁ 2 6 ▁species , ▁so ▁that ▁the ▁genus ▁currently ▁compr ises ▁ 4 2 ▁species . ▁At ▁least ▁ 3 0 ▁more ▁species ▁await ▁scientific ▁description . ▁ ▁The ▁c ater p ill ars ▁are ▁reported ▁to ▁feed ▁on ▁f ern s . ▁ ▁Species ▁ ▁Hop los cop a ▁ag tu ug anon ensis ▁Lé ger ▁& ▁N uss ▁in ▁Lé ger , ▁Ke hl ma ier , ▁V ai ra pp an ▁& ▁N uss , ▁ 2 0 2 0 ▁Hop los cop a ▁alb ip