Mutation Detection Using Mass Spectrometric Separation of Tiny Oligonucleotide Fragments

Table 1.

Products from cleavage of IL 12 polymerase chain reaction product with uracil-N-glycosylase.

Expected fragments Expected mass (da) Allele in which fragment is seen Observed mass (Da)
+/+ +/− −/−
GCC 1005.6 +/− 1007.38 1004.93 1006.13
CAA 1013.6 N/O 1012.41 1014.22
CGA 1029.6 + 1028.69 1028.57 N/O
AAA 1037.6 +/− 1035.85 1036.69 1037.89
AGA 1053.6 N/O 1053.69 1055.88
GGG 1085.6 +/− 1085.97 1084.61 1088.01
AGAC 1342.8 +/− 1343.55 1340.09 1343.63
AGGA 1382.8 +/− 1379.17 1382.13 1383.46
CACAA 1616.0 +/− 1615.27 1615.74 1617.10
CAAGC 1632.0 + 1629.59 1632.72 N/O
AAACA 1640.0 +/− 1636.75 1639.14 1640.87
AAAGA 1680.0 +/− 1679.71 1678.97 1680.74
AAAACG 1969.2 +/− 1965.75 1969.36 1971.46
GAAACAA 2282.4 +/− 2284.10 2285.29 2282.65
AAACGAAA 2595.6 +/− 2591.63 2594.18 2597.34
GCAAAAAAA 2908.8 +/− 2906.31 2912.22 2908.53
AGAAACGACA 3214.0 +/− 3210.34 3211.75 3216.05
  • Fragments >2 bp, excluding primer fragments. N/O = not observed.

This Article

  1. Genome Res. 12: 1428-1433

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