# Toll-Like Receptors (TLRs) > The word originates from the German language, where "toll" translates to "great", indicating how significant of an impact these receptors have on our immune systems. ## Diversity of TLRs When isolated, TLRs are in their [[Polymers|monomeric]] form | Lineage | Receptor | Chromosome | Ligands | Microorganisms Recognized | | --- | --- | --- | --- | --- | | I | TLR1 | | | |