This line from goa_human

UniProtKB       Q8WUF5  PPP1R13L                GO:0042802      PMID:23623661   IPI     UniProtKB:Q8WUF5        F       RelA-associated inhibitor       IASPP_HUMAN|PPP1R13L|IASPP|NKIP1|PPP1R13BL|RAI  protein taxon:9606      20140929        IntAct          

is directly annotated to: GO:0042802 ! identical protein binding

Should be deepened to:

-       GO:0017124 ! SH3 domain binding 
-       GO:0071532 ! ankyrin repeat binding

Based on UniProtKB:Q8WUF5

Remember to first run through: add-protein-binding-with-to-c16.pl 

This will yield:

UniProtKB       Q8WUF5  PPP1R13L                GO:0042802      PMID:23623661   IPI     UniProtKB:Q8WUF5        F       RelA-associated inhibitor       IASPP_HUMAN|PPP1R13L|IASPP|NKIP1|PPP1R13BL|RAI  protein taxon:9606      20140929        IntAct  has_input(UniProtKB:Q8WUF5)