Extended Data Fig. 5: FttA is an abundant protein likely responsible for 3′-end formation in archaeal cells.
From: FttA is a CPSF73 homologue that terminates transcription in Archaea

Quantitative Western blots employing anti-FttA antibodies, purified recombinant FttA, and total cellular lysates derived from known numbers of lysed T. kodakarensis cells reveal that FttA is present at ~2,100 -/ + 500 copies per cell. Cell counts and protein calculations were performed as described20. A, B and C represent independent biological samples.