5KST:
reference: Conformational variability of the stationary phase survival protein E from Xylella fastidiosa revealed by X-ray crystallography, small-angle X-ray scattering studies, and normal mode analysis., Machado ATP, Fonseca EMB, Reis MAD, Saraiva AM, Santos CAD, de Toledo MAS, Polikarpov I, de Souza AP, Aparicio R, Iulek J, Proteins. 2017 Jul 5. doi: 10.1002/prot.25347. PMID: 28677327

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