Class 1: pAAA, pCCC, pGGG, pTTT
Class 2: pAAC, pACA, pCAC, pCCA, pGGT, pGTG, pTGT, pTTG
Class 3: pAAG, pAGA, pCCT, pCTC, pGAG, pGGA, pTCT, pTTC
Class 4: pAAT, pATA, pCCG, pCGC, pGCG, pGGC, pTAT, pTTA
Class 5: pACC, pCAA, pGTT, pTGG
Class 6: pACG, pAGC, pCAT, pCTA, pGAT, pGTA, pTCG, pTGC
Class 7: pACT, pATC, pCAG, pCGA, pGCT, pGTC, pTAG, pTGA
Class 8: pAGG, pCTT, pGAA, pTCC
Class 9: pAGT, pATG, pCGT, pCTG, pGAC, pGCA, pTAC, pTCA
Class 10: pATT, pCGG, pGCC, pTAA