Electrospray quadrupole mass spectrometry analysis of model oligonucleotides and polymerase chain reaction products: determination of base substitutions, nucleotide additions/deletions, and chemical modifications.
Identifieur interne : 002625 ( PubMed/Curation ); précédent : 002624; suivant : 002626Electrospray quadrupole mass spectrometry analysis of model oligonucleotides and polymerase chain reaction products: determination of base substitutions, nucleotide additions/deletions, and chemical modifications.
Auteurs : M T Krahmer [États-Unis] ; Y A Johnson ; J J Walters ; K F Fox ; A. Fox ; M. NagpalSource :
- Analytical chemistry [ 0003-2700 ] ; 1999.
Descripteurs français
- KwdFr :
- MESH :
English descriptors
- KwdEn :
- MESH :
- chemical , analysis : Oligonucleotides.
- chemical , chemistry : Oligonucleotides.
- chemical : DNA Primers.
- methods : Mass Spectrometry.
- Base Sequence, Polymerase Chain Reaction.
Abstract
ESI FTICR mass spectrometry is the only technique currently used for accurate molecular weight analysis of PCR products above 100 bp in size. This is important in demonstrating the potential for MS in making major contributions in the molecular biology and genomics areas. In the near future, it is more likely that less expensive, more user friendly MS techniques will be used for high-throughput analyses (including MALDI TOF and ESI quadrupole). There have been numerous reports on the use of MALDI TOF. The current report is to the first to evaluate the use of ESI-quadrupole analysis of PCR products. Synthetic oligonucleotides (30 and 89 mers) and polymerase chain reaction products of varying molecular weight (62, 88, 89, and 114 bp) were analyzed by ESI using a quadrupole MS. The mass accuracy for nucleic acids in the 30-62 bp range was shown to allow determination of nucleotide substitutions and additions/deletions. For higher molecular weight PCR products (88-114 bp), the mass accuracy of ESI-MS distinguishes single or multiple nucleotide insertions/deletions. In addition, ESI quadrupole MS allows determination of molecular weight of both strands of higher molecular weight ds PCR products and can distinguish nucleotide modifications (e.g., with biotin). In conclusion, it is demonstrated that ESI-MS occupies an intermediate position (as compared to MALDI TOF and ESI FTICR) with regard to mass accuracy and resolution in analysis of nucleic acids.
DOI: 10.1021/ac981280s
PubMed: 10424176
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In addition, ESI quadrupole MS allows determination of molecular weight of both strands of higher molecular weight ds PCR products and can distinguish nucleotide modifications (e.g., with biotin). In conclusion, it is demonstrated that ESI-MS occupies an intermediate position (as compared to MALDI TOF and ESI FTICR) with regard to mass accuracy and resolution in analysis of nucleic acids.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">10424176</PMID><DateCompleted><Year>1999</Year><Month>10</Month><Day>08</Day></DateCompleted><DateRevised><Year>2019</Year><Month>07</Month><Day>17</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">0003-2700</ISSN><JournalIssue CitedMedium="Print"><Volume>71</Volume><Issue>14</Issue><PubDate><Year>1999</Year><Month>Jul</Month><Day>15</Day></PubDate></JournalIssue><Title>Analytical chemistry</Title><ISOAbbreviation>Anal. Chem.</ISOAbbreviation></Journal><ArticleTitle>Electrospray quadrupole mass spectrometry analysis of model oligonucleotides and polymerase chain reaction products: determination of base substitutions, nucleotide additions/deletions, and chemical modifications.</ArticleTitle><Pagination><MedlinePgn>2893-900</MedlinePgn></Pagination><Abstract><AbstractText>ESI FTICR mass spectrometry is the only technique currently used for accurate molecular weight analysis of PCR products above 100 bp in size. This is important in demonstrating the potential for MS in making major contributions in the molecular biology and genomics areas. In the near future, it is more likely that less expensive, more user friendly MS techniques will be used for high-throughput analyses (including MALDI TOF and ESI quadrupole). There have been numerous reports on the use of MALDI TOF. The current report is to the first to evaluate the use of ESI-quadrupole analysis of PCR products. Synthetic oligonucleotides (30 and 89 mers) and polymerase chain reaction products of varying molecular weight (62, 88, 89, and 114 bp) were analyzed by ESI using a quadrupole MS. The mass accuracy for nucleic acids in the 30-62 bp range was shown to allow determination of nucleotide substitutions and additions/deletions. For higher molecular weight PCR products (88-114 bp), the mass accuracy of ESI-MS distinguishes single or multiple nucleotide insertions/deletions. In addition, ESI quadrupole MS allows determination of molecular weight of both strands of higher molecular weight ds PCR products and can distinguish nucleotide modifications (e.g., with biotin). 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