Promotes RNA polymerase assembly. Latches the N- and C- terminal regions of the beta' subunit thereby facilitating its interaction with the beta and alpha subunits (By similarity). DNA-directed RNA polymerase subunit omega 88 RPOZ_PSEAB MARVTVEDCLDNVDNRFELVMLATKRARQLATGGKEPKVAWENDKPTVVALREIASGLVDENVVQQEDIVEDEPLFAAFDDEANTEAL rpoZ PA14_70450 RNA polymerase omega subunit Transcriptase subunit omega