#TODO

def _addProtein(self, proteinId, proteinName, sequence, fastaHeader,
                    headerInfo, isDecoy=False, isContaminant=False):
        """#TODO"""
        proteinEntry = ProteinEntry(
            proteinId, proteinName, sequence, fastaHeader, headerInfo,
            isDecoy=isDecoy, isContaminant=isContaminant
        )
        self.proteins[proteinEntry.id] = proteinEntry