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Table 1 Domains in mammalian proteins classified by age

From: Emergence of novel domains in proteins

Domain age

N domains

Domain length

Old

20,735 (3,039)

145.8 (101)

Vertebrate

916 (363)

157.2 (102)

Mammals

79 (63)

162 (111)

  1. N domains: number of domain occurrences, in brackets different domain types (non-redundant domains). Domain length: mean and median (in brackets) values.