3TXA:
reference: Structure of Streptococcus agalactiae tip pilin GBS104: a model for GBS pili assembly and host interactions., Krishnan V, Dwivedi P, Kim BJ, Samal A, Macon K, Ma X, Mishra A, Doran KS, Ton-That H, Narayana SV, Acta Crystallogr D Biol Crystallogr. 2013 Jun;69(Pt 6):1073-89. doi:, 10.1107/S0907444913004642. Epub 2013 May 15. PMID: 23695252

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