Fig. 5: Arrangement of PAPs in the Spinacia oleracea (Sp.) PEP complex.
From: Architecture of the spinach plastid-encoded RNA polymerase
Position of PAPs located on the upper arm and the lower arm (a) and the intersection of the two arms (b). All PAPs are presented as cartoons. The PAPs are colored individually as indicated in Fig. 1; the Sp. PEP core subunits are colored in gray. c Summary table showing that the PAPs interact extensively with the PEP core subunits and with each other. α1, α2, RNA polymerase α subunit; β, RNA polymerase β subunit; β', RNA polymerase β' subunit; β'', RNA polymerase β'' subunit; PAP1, plastid transcriptionally active chromosome protein 3 (pTAC3); PAP3, plastid transcriptionally active chromosome protein 10 (pTAC10); PAP4, iron superoxide dismutase 3 (FSD3); PAP6, fructokinase-like protein 1 (FLN1); PAP7, plastid transcriptionally active chromosome protein 14 (pTAC14); PAP8, plastid transcriptionally active chromosome protein 6 (pTAC6); PAP9, iron superoxide dismutase 2 (FSD2); PAP101, PAP102, thioredoxin Z (Trx Z); PAP11, UDP-N-acetylmuramoyl-L-alanyl-D-glutamate-2,6-diaminopimelate ligase MurE homolog; PAP12/ω, plastid transcriptionally active chromosome protein 7 (pTAC7); PAP13, fructokinase-like protein 2 (FLN2); PAP14, plastid transcriptionally active chromosome protein 18 (pTAC18).
