Table 1 Relationships for selection and score calculation
From: Spectra library assisted de novo peptide sequencing for HCD and ETD spectra pairs
Relationship | Ions selected | Score calculation on |
|---|---|---|
spectrum S L k | ||
∣(v +−u +)−a i ±σ∣≤θ | v | \(S^{aa}_{k}=\frac {N_{ion}^{real}}{N_{ion}^{select}}\) |
and ∣(t +−v +)−a j ±σ∣≤θ | (middle ion) | |
∣m p +2m H −(v ++u +)±σ∣≤θ | v and u if u,v∈S c | \(S^{comp}_{k}=\frac {N_{comp}^{real}}{N_{comp}^{select}}\) |
∣m p +3m H −(v ++u +)±σ∣≤θ | v and u if u,v∈S e |