Two signature patterns for this family have been identified: C--D-S-R--x- --A--x(2)--x(4)-(3)-x-G-H-x(2)-C-G The gamma class of CAs come from methanogens, methane-producing bacteria that grow in hot springs.
To signaturmønstre for denne familie er blevet identificeret: C--D-S-R--x- --A--x(2)--x(4)-(3)-x-G-H-x(2)-C-G Gamma-klassen af CA'ere kommer fra methan-producerende bakterier, der vokser i varme kilder.