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. 2005 Jun 10;33(10):3390–3400. doi: 10.1093/nar/gki615

Table 8.

Structural/functional domains in eukaryotic, bacterial and archaeal proteomes

Database Domains EUK BAC ARC
Pfam-A Total number 154 979 192 680 33 372
Mean number/seq. 2.16 1.46 1.39
Median length/amino acids 185 188 179
Pfam-A + Pfam-B Total number 249 163 275 630 48 060
Mean number/seq. 3.48 2.09 2.00
Median length/amino acids 257 217 205