{"rfam": {"acc": "RF00558", "id": "L20_leader", "description": "Ribosomal protein L20 leader", "comment": "This family is a putative r-protein leader autoregulatory structure [1] found in B. subtilis and other low-GC Gram-positive bacteria. It is located in the 5' untranslated regions of mRNAs encoding initiation factor 3 followed by ribosomal proteins L35 and L20 (infC-rpmI-rplT). A Rho-independent transcription terminator structure that is probably involved in regulation is included at the 3' end.", "curation": {"author": "Barrick JE", "seed_source": "Predicted; CMFinder, Barrick JE, Moy RH", "num_seed": 43, "num_full": 714, "num_species": 753, "type": "Cis-reg; leader;", "structure_source": "Predicted; CMFinder, Barrick JE, Moy RH"}, "cm": {"build_command": "cmbuild -F CM SEED", "calibrate_command": "cmcalibrate --mpi CM", "search_command": "cmsearch --cpu 4 --verbose --nohmmonly -T 49.00 -Z 2958934 CM SEQDB", "cutoffs": {"gathering": 58.7, "trusted": 58.7, "noise": 58.6}}, "release": {"date": "2026-01-16", "number": "15.1"}, "clan": {"acc": null, "id": null}}}