si_0830 Nonribosomal_peptide_synthetases_(NRPS)_in_Frankia_sp._Ccl3 NRPS loading module Thr-PG-PG-Thr si_0830 Nonribosomal_peptide_synthetases_(NRPS)_in_Frankia_sp._Ccl3 NRPS module 2 PG-PG-Asn si_0830 Nonribosomal_peptide_synthetases_(NRPS)_in_Frankia_sp._Ccl3 NRPS module 3 PG-PG si_0830 Nonribosomal_peptide_synthetases_(NRPS)_in_Frankia_sp._Ccl3 NRPS module 4 PG-Ser-Gly-Thr