title: RNase cleavage-based methods for mutation/SNP detection, past and present.
abstract: Mutation detection based on ribonuclease cleavage of basepair mismatches in single-stranded RNA probes hybridized to DNA targets was first described over 15 years ago. The original methods relied on RNase A for mismatch cleavage; however, this enzyme fails to cleave many mismatches and has other drawbacks. More recently, a new method for RNase-cleavage-based mutation scanning has been developed, which takes advantage of the ability of RNase 1 and RNase T1 to cleave mismatches in duplex RNA targets, when these enzymes are used in conjunction with nucleic acid intercalating dyes. The method, called NIRCA, is relatively low-cost in terms of materials and equipment required. It is being used to detect mutations and SNPs in a wide variety of genes involved in human genetic disease and cancer, as well as in disease-related viral and bacterial genes. This review describes historical and recently developed RNase cleavage-based methods for mutation/SNP scanning.
authors.affiliation: Ambion, Inc., Austin, Texas 78744, USA. mgoldrick@ambion.com
authors.forename: M M
authors.initials: MM
authors.lastname: Goldrick
mesh_terms: D004247:DNA / Q000235:genetics / Q000378:metabolism; D004252:DNA Mutational Analysis / Q000379:methods*; D006801:Humans; D009154:Mutation / Q000235:genetics*; D009692:Nucleic Acid Heteroduplexes / Q000235:genetics / Q000378:metabolism; D020641:Polymorphism, Single Nucleotide / Q000235:genetics*; D012313:RNA / Q000235:genetics / Q000378:metabolism; D006163:Ribonuclease T1 / Q000378:metabolism; D012259:Ribonuclease, Pancreatic / Q000378:metabolism; D012260:Ribonucleases / Q000378:metabolism*
chemical_list: D009692:Nucleic Acid Heteroduplexes; D012313:RNA; D004247:DNA; D012260:Ribonucleases; D006163:Ribonuclease T1; D012259:Ribonuclease, Pancreatic