"uniprotkb_canonical_ac","xref_key","xref_id","annotation"
"P54762-1","protein_xref_pubmed","Q8CBF3","Receptor tyrosine kinase which binds promiscuously transmembrane...
@rykahsay --> In reviewed/*_protein_function_uniprotkb.csv, "xref_key" should be "protein_xref_uniprotkb_fun" if source file says http://purl.uniprot.org/uniprot/...
UniProt ID's are listed as PubMed evidence in Protein Function section: Ex. https://beta.glygen.org/protein/P54762-1#Function
Ex. reviewed/human_protein_function_uniprotkb.csv:
@rykahsay --> In reviewed/*_protein_function_uniprotkb.csv, "xref_key" should be "protein_xref_uniprotkb_fun" if source file says http://purl.uniprot.org/uniprot/...