Table 4. Molecular function of predicted consensus GO terms for the PPR model.
| Consensus GO terms | Molecular function description |
| GO:0003824 | Enzyme activity. Enzymes possess specific binding sites for substrates, and are usually composed wholly or largely of protein. |
| GO:0005488 | Ligand. The selective, non-covalent, often stoichiometric, interaction of a molecule with one or more specific sites on another molecule. |
| GO:0000166 | Interacting selectively and non-covalently with a nucleotide, any compound consisting of a nucleoside that is esterified with (ortho)phosphate or an oligophosphate at any hydroxyl group on the ribose or deoxyribose. |
| GO:0005524 | Interacting selectively and non-covalently with ATP, adenosine 5′-triphosphate, a universally important coenzyme and enzyme regulator. |
| GO:0016874 | Catalysis of the joining of two substances, or two groups within a single molecule, with the concomitant hydrolysis of the diphosphate bond in ATP or a similar triphosphate. |
| GO:0005515 | Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules). |
| GO:0016787 | Catalysis of the hydrolysis of various bonds, e.g. C-O, C-N, C-C, phosphoric anhydride bonds, etc. Hydrolase is the systematic name for any enzyme of EC class 3. |
| GO:0003989 | Catalysis of the reaction: ATP+acetyl-CoA+HCO3− = ADP+phosphate+malonyl-CoA. |
| GO:0004650 | Catalysis of the random hydrolysis of (1→4)-alpha-D-galactosiduronic linkages in pectate and other galacturonans. |
| GO:0046872 | Interacting selectively and non-covalently with any metal ion. |