Gene family data from the PhyloGenes (release version 2.2, phylogenes.org)

About the two zip files: 

1. phyloXML.zip

PhyloGenes gene family trees in PhyloXML format, one file per family (e.g. <family_ID>.xml).

The following information is provided for each node of a tree:
1) leaf node:
branch length
name <gene_id>
taxonomy scientific_name
sequence accession <UniProt ID>

2) non-leaf node:
branch length
events <duplication or speciation>

2. CSV.zip

Functional information of family members in CSV format, one file per family (e.g. <family_ID>.csv). 

A CSV file includes the following columns:
Uniprot ID
Gene <Gene name. If none then Gene ID>
Gene ID
Gene name
Organism
Subfamily name

The columns displayed after 'Subfamily name', if any, are GO annotations. Each column is a GO molecular function or biological process term that is annotated to at least one member of the gene family AND the annotation is supported by an experimental evidence (indicated by 'EXP') or phylogenetic inference (indicated by 'IBA'). A '0' indicates absence of either annotations.