7l8n is a 2 chain structure with sequence from Streptococcus mutans UA159. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Q8DTC4_STRMU Catalyzes the condensation of 2 ATP molecules into cyclic di-AMP (c-di-AMP), a second messenger used to regulate differing processes in different bacteria.[HAMAP-Rule:MF_01499]