Thirteen TLRs (named simply TLR1 to TLR13) have been identified in humans and mice together, and equivalent forms of many of these have been found in other mammalian species.
Identificáronse trece TLRs (nomeados desde o TLR1 ao TLR13) nos humanos e ratos, e formas equivalentes de moitos deles atopáronse noutras especies de mamíferos.