The protein_omega_count table is a part of the peakdb database. The table consists of five columns:
- label: the accession number of a protein, found in the proseq table in GPMDB
- seq: the residue sequence of a peptide identified as part of that protein, found in the peptide table in GPMDB
- z1total: an integer for the number of times this peptide has been identified in the corresponding protein in a singly charged state
- z2total: an integer for the number of times this peptide has been identified in the corresponding protein in a doubly charged state
- z3total: an integer for the number of times this peptide has been identified in the corresponding protein in a triply charged state