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rule |
GORULE:0000002 |
No 'NOT' annotations to binding ; GO:0005488 or 'protein binding ; GO:0005515' |
report |
hard |
implemented |
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An annotation to binding ; GO:0005488 or protein binding ; GO:0005515 with the 'not' qualifier implies that the annotated protein cannot bind anything. There are no characterized examples of a protein with no interactions.
The presence of an identifier in the 'with' column or in an annotation extension would not justify a 'not' annotation either, since a qualifier add precision to the GO term; it does not imply that a protein does not have the activity designated by the GO term under the specific context specified by the annotation extension.
This rule only applies to direct annotations to GO:0005488 and GO:0005515; children of these terms can be qualified with 'not', as further information on the type of binding is then supplied in the GO term. For more information, see the binding guidelines on the GO wiki.