Table 2 Fragments of the InParanoid OrthoXML file that stores orthology relations between human and mouse

<species name="Homo sapiens " NCBITaxId="9606" >

<database name="UniProt"

version="UniProt_Complete_Proteomes_2013_06"

protLink="http://www.uniprot.org/uniprot/">

<genes>

<gene id="33162" protId="P0DJI8" geneId="SAA1"/>

<gene id="33163" protId="P0DJI9" geneId="SAA2"/>

</genes>

</species>

<species name="Mus musculus " NCBITaxId="10090">

<database name="UniProt"

version="UniProt_Complete_Proteomes_2013_06"

protLink="http://www.uniprot.org/uniprot/">

<genes>

<gene id="33164" protId="P05366" geneId="Saa1"/>

<gene id="33165" protId="P05367" geneId="Saa2"/>

</genes>

</species>

<orthologGroup id="16021">

<geneRef id="33162"/>

<geneRef id="33163"/>

<geneRef id="33164"/>

<geneRef id="33165"/>

</orthologGroup>