3.1.16.1	-	134136, 134141, 134151, 134155, 134156, 134157	
3.1.16.1	by calmodulin affinity chromatography	681898	
3.1.16.1	by cation exchange column and on Ni-NTA column	681823	
3.1.16.1	by gel filtration	682165	
3.1.16.1	contamination by endonuclease activity	134140	
3.1.16.1	FEN-1 purified by cation exchange column followed by a calmodulin affinity resin, more than 95% pure, C-terminal truncation mutant purified on Ni-NTA column and by cation exchange column, more than 95% pure	681823	
3.1.16.1	fractionation of exonucleases A, B and C	134146	
3.1.16.1	no contamination by other phosphohydrolase activities	134146, 134149	
3.1.16.1	no endonuclease and phophomonoesterase activities	134134	
3.1.16.1	XRND purified by nickel affinity chromatography	682836