1. Amelia Ireland and Jane Lomax
Dual Taxon Annotation
Amelia Ireland and Jane Lomax

2. Dual Taxon Annotation Annotation guide states Currently unused
Taxon: taxonomic identifier(s)
For cardinality 1, the ID of the species encoding the gene product.
For cardinality 2, the first ID is that of the species encoding the gene product; the second ID is that of the species using the gene product.
Currently unused

3. Dual Taxon Annotation Suggest redefining as
For cardinality 2, the first ID is that of the species encoding the gene product; the second ID is that of the species in which the gene product is acting.
Can be used for component or process terms

4. Dual Taxon Annotation
Bacteria living as endosymbiont in plant cell; secretes protein esp1 into host cytoplasm
Bacteria taxon 666
Host taxon 123
Annotation of esp1:
esp1 host cell cytoplasm taxon:666|taxon:123

5. Dual Taxon Annotation
Bacteria secretes protein bad1 which kills the host cell
Annotation:
bad1 killing of host cells taxon:666|taxon:123

6. Dual Taxon Annotation
Bacterial protein lig1 interacts with rec5 from bacteria of taxon 999, enabling them to form a biofilm
Annotation:
lig1 multi-species biofilm formation taxon:666|taxon:999
rec1 multi-species biofilm formation taxon:999|taxon:666

7. Dual Taxon Annotation
Bacterial protein reg1 interacts with host protein met3, regulating metabolic processes in the host
reg1 regulation of metabolism in host taxon:666|taxon:123
met3 regulation of metabolism by other organism taxon:123|taxon:666

8. Dual Taxon Annotation Implementation:
Ensure GO DB can store second taxon
Enable display in AmiGO
Amend annotation documentation
Alter annotation tools
Annotations correct without second taxon