5VJ4:
reference: Crystal Structure of Borrelia turicatae protein, BTA121, a differentially regulated gene in the tick-mammalian transmission cycle of relapsing fever spirochetes., Luo Z, Kelleher AJ, Darwiche R, Hudspeth EM, Shittu OK, Krishnavajhala A, Schneiter R, Lopez JE, Asojo OA, Sci Rep. 2017 Nov 10;7(1):15310. doi: 10.1038/s41598-017-14959-9. PMID: 29127407

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