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rnhC | Ribonuclease HIII; Endonuclease that specifically degrades the RNA of RNA-DNA hybrids. (299 aa) | ||||
rnc | Ribonuclease III; Digests double-stranded RNA. Involved in the processing of primary rRNA transcript to yield the immediate precursors to the large and small rRNAs (23S and 16S). Processes some mRNAs, and tRNAs when they are encoded in the rRNA operon. Processes pre-crRNA and tracrRNA of type II CRISPR loci if present in the organism. (249 aa) | ||||
hsdR | Type I restriction enzyme, R subunit; Subunit R is required for both nuclease and ATPase activities, but not for modification. (929 aa) | ||||
rnmV | Primase-like protein; Required for correct processing of both the 5' and 3' ends of 5S rRNA precursor. Cleaves both sides of a double-stranded region yielding mature 5S rRNA in one step. (172 aa) | ||||
rnpA | Ribonuclease P; RNaseP catalyzes the removal of the 5'-leader sequence from pre-tRNA to produce the mature 5'-terminus. It can also cleave other RNA substrates such as 4.5S RNA. The protein component plays an auxiliary but essential role in vivo by binding to the 5'-leader sequence and broadening the substrate specificity of the ribozyme. (105 aa) | ||||
nfo | Endonuclease IV; Endonuclease IV plays a role in DNA repair. It cleaves phosphodiester bonds at apurinic or apyrimidinic sites (AP sites) to produce new 5'-ends that are base-free deoxyribose 5-phosphate residues. It preferentially attacks modified AP sites created by bleomycin and neocarzinostatin. (308 aa) |