Tracing the origin of functional and conserved domains in the human proteome: implications for protein evolution at the modular level

Table 3 Evolutionary origin of Pfam-A families at different eukaryotic nodes

Node of origin	Number of Pfam-A families with remote homologs at
	Single node	Multiple node	Total
Eukaryota	667	334	1001
Metazoa	255	115	370
Chordata	154	64	218
Mammalia	54	18	72
Primates	4	3	7
Homo sapiens	44	0	44

ISSN: 2730-7182