{"rfam": {"acc": "RF00044", "id": "Phage_pRNA", "description": "3WJ core of Phi29 Bacteriophage pRNA", "comment": "During replication of linear dsDNA viruses, the viral genome is packaged into the pre-formed viral procapsid. The packaging of DNA into the procapsid requires a molecular motor which using ATP as energy to accomplish the energetically unfavourable motion. In some bacteriophage, an RNA (pRNA) molecule is a vital component of this motor [1]. Structural analyses of the packaging motor have demonstrated that the pRNA molecule has fivefold symmetry when attached to the prohead [2-4]. The pRNA is thought to be bound by the capsid connector protein (PFAM:PF05352) [4]. Only the first 120 bases of the pRNA are essential for packing the viral DNA [5,6]. The pRNA is proposed to be comprised of two domains, one corresponding to the first 120 bases and the second to the remaining 50 bases [6]. Nuclear cleavage occurs in the single strand region linking these two domains [6]. The structure of Bacteriophage pRNA has been reported in PDB: 1L4O, 2KVN, 3R4F, 1H5W, 1L4P, 4KZ2 [1, 2, 3, 4, 7, 8].", "curation": {"author": "Finn RD, Ontiveros-Palacios N", "seed_source": "Finn RD", "num_seed": 5, "num_full": 1, "num_species": 2, "type": "Gene;", "structure_source": "Predicted; ILM"}, "cm": {"build_command": "cmbuild -F CM SEED", "calibrate_command": "cmcalibrate --mpi CM", "search_command": "cmsearch --cpu 4 --verbose --nohmmonly -T 30.00 -Z 2958934 CM SEQDB", "cutoffs": {"gathering": 100.0, "trusted": 133.8, "noise": 56.0}}, "release": {"date": "2026-01-16", "number": "15.1"}, "clan": {"acc": null, "id": null}}}