8h40 is a 11 chain structure with sequence from Anabaena. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
RPOB_NOSS1 DNA-dependent RNA polymerase catalyzes the transcription of DNA into RNA using the four ribonucleoside triphosphates as substrates.[HAMAP-Rule:MF_01321]