Two salt bridge pairs formed between A123His and B36Asp and B36Asp and A120His in the fifteenth structure model of the NMR ensemble (PDB ID: 2leh) of the SMN-Gemin2 complex [21].

In the first column, SB represents salt bridge, Inter-atomic distance includes both the distance between the two oppositely charged groups and the distribution of the distances between the two oppositely charged groups for the 32 NMR structure models in the SMN-Gemin2 complex. Color represents the color of the dash lines used to represent the salt bridges in Fig 2 in the main file. In the residue naming scheme here, such as B36Asp, B represents the chain ID used in the PDB file (PDB ID: 2leh), 36 represents the residue number, Asp represents the three-letter code for the amino acid.

在本数据集的第一列中，SB代表盐桥（salt bridge）；原子间距离（inter-atomic distance）列涵盖SMN-Gemin2复合物的32个核磁共振（NMR）结构模型中，一对带相反电荷基团间的距离及其距离分布情况。颜色列对应主文档中图2中用于标示盐桥的虚线颜色。本处采用的残基命名规则示例为B36Asp：其中B代表PDB（Protein Data Bank，蛋白质数据库）文件（PDB编号：2leh）中的链标识符，36代表残基编号，Asp则代表氨基酸的三字母代码。