2RS4:
reference: Hydrogen Exchange Study on the Hydroxyl Groups of Serine and Threonine Residues in Proteins and Structure Refinement Using NOE Restraints with Polar Side-Chain Groups., Takeda M, Jee J, Ono AM, Terauchi T, Kainosho M, J Am Chem Soc. 2011 Oct 10. PMID: 21955241

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