actin catin atcin tacin ctain tcain acitn caitn aictn iactn ciatn icatn aticn taicn aitcn iatcn tiacn itacn ctian tcian citan ictan tican itcan actni catni atcni tacni ctani tcani acnti canti ancti nacti cnati ncati atnci tanci antci natci tnaci ntaci ctnai tcnai cntai nctai tncai ntcai acint caint aicnt iacnt ciant icant acnit canit ancit nacit cnait ncait ainct ianct anict naict inact niact cinat icnat cniat nciat incat nicat atinc tainc aitnc iatnc tianc itanc atnic tanic antic natic tnaic ntaic aintc iantc anitc naitc inatc niatc tinac itnac tniac ntiac intac nitac ctina tcina citna ictna ticna itcna ctnia tcnia cntia nctia tncia ntcia cinta icnta cnita ncita incta nicta tinca itnca tnica ntica intca nitca
Note: these 'words' (valid or invalid) are all the permutations of the word actin. These words are obtained by scrambling the letters in actin.