Vibrio cholerae pathogenicity island 2 encodes two distinct types of restriction systems
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Homing endonucleases (HE) are double-stranded DNAses that target large recognition sites (12-40 bp). HE-encoding sequences are usually embedded in either introns or inteins. Their recognition sites are extremely rare, with none or only a few of these sites ...
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Comparative analyses of various mammalian genomes have identified numerous conserved non-coding (CNC) DNA elements that display striking conservation among species, suggesting that they have maintained specific functions throughout evolution. CNC function ...
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Members of the human APOBEC3 family of editing enzymes can inhibit various mobile genetic elements. APOBEC3A (A3A) can block the retrotransposon LINE-1 and the parvovirus adeno-associated virus type 2 (AAV-2) but does not inhibit retroviruses. In contrast, ...
EcoR124 and EcoR124/3 are type I DNA restriction and modification systems. The EcoR124/3 system arose from the EcoR124 system some 15 years ago and at the electron microscopic DNA heteroduplex level the genes for both systems are still apparently identical ...
