pfam18135: Type_ISP_C (this model, PSSM-Id:407967 is obsolete and has been replaced by 465663)
Type ISP C-terminal specificity domain
This is the C-terminal domain of Type ISP restriction-modification enzyme LLaBIII present in Lactococcus lactis subsp. cremoris. Type ISP restriction-modification (RM) enzymes provide a potent defence against infection by foreign and bacteriophage DNA. This domain interacts extensively with DNA and is known as the target recognition domain (TRD). TRD works by recognising 6/7 base pairs of asymmetric sequence.