Occurrence and Consequences of Coding Sequence Insertions and Deletions in Mammalian Genomes

Table 2.

Detection of Sequence Slippage






Observed data (% slippage-like)

Simulated data (% slippage-like)

Significance (p)
All events Deletions 38.00% 4.66% <0.0001
Insertions 52.49% 5.28% <0.0001
Single-codon events Deletions 37.37% 7.50% <0.0001
Insertions 57.03% 7.53% <0.0001
Nonrepeat single codona Deletions 29.55% 6.94% <0.0001

Insertions
38.92%
6.70%
<0.0001
  • Slippage-like is defined to be when a sequence adjacent to the indel is identical to the inserted or deleted sequence. For the simulated data, slippage status was averaged over all 1000 simulated data sets. P-values were calculated from two-tailed χ2 tests on raw counts.

  • a The nonrepeating single-codon-event data sets have been purged of all events that were observed in the context of trinucleotide repeats of two or more adjacent trinucleotides (excluding the inserted or deleted sequence itself)

This Article

  1. Genome Res. 14: 555-566

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