1JNB:
reference: Structure determination of the head-tail connector of bacteriophage phi29., Simpson AA, Leiman PG, Tao Y, He Y, Badasso MO, Jardine PJ, Anderson DL, Rossmann MG, Acta Crystallogr D Biol Crystallogr. 2001 Sep;57(Pt 9):1260-9. Epub 2001, Aug 23. PMID: 11526317

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