| (subclass Protein Nutrient) | Merge.kif 14734-14734 | |
| (subclass RicinToxin Protein) | WMD.kif 430-430 | |
| (subclass AbrinToxin Protein) | WMD.kif 438-438 | |
| (subclass StructuralProtein Protein) | VirusProteinAndCellPart.kif 269-269 | |
| (subclass TransportProtein Protein) | VirusProteinAndCellPart.kif 273-273 | |
| (subclass MotorProtein Protein) | VirusProteinAndCellPart.kif 277-277 | |
| (subclass StorageProtein Protein) | VirusProteinAndCellPart.kif 281-281 | |
| (subclass SignalingProtein Protein) | VirusProteinAndCellPart.kif 285-285 | |
| (subclass ReceptorProtein Protein) | VirusProteinAndCellPart.kif 289-289 | |
| (subclass GeneRegulatoryProtein Protein) | VirusProteinAndCellPart.kif 293-293 | |
| (subclass SpecialPurposeProtein Protein) | VirusProteinAndCellPart.kif 297-297 | |
| (subclass Histone Protein) | VirusProteinAndCellPart.kif 300-300 | |
| (subclass Lipoprotein Protein) | VirusProteinAndCellPart.kif 1078-1078 | |
| (subclass Antibody Protein) | Mid-level-ontology.kif 9843-9843 | |
| (subclass Enzyme Protein) | Merge.kif 14738-14738 | |
| (subclass Hemoglobin Protein) | Medicine.kif 251-251 | |
| (subclass Interleukin Protein) | Medicine.kif 3731-3731 | |
| (subclass Troponin Protein) | Medicine.kif 3940-3940 | |
| (subclass Ferritin Protein) | Medicine.kif 4919-4919 |
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