. 2015 Mar 23;43(7):3789–3801. doi: 10.1093/nar/gkv225

Table 1. Numbers of Mg²⁺ sites included in the benchmark dataset for the four site classes described in the text.

Dataset	Total	Metal atom within 4 Å of Mg²⁺	Protein or small molecule in Mg²⁺ inner sphere	RNA-inner	RNA-outer
All data	15334	412 [2.7%]	268 [1.7%]	9628 [63%]	5026 [33%]
Ribosome	14682	373 [2.5%]	195 [1.3%]	9382 [64%]	4732 [32%]
Non-ribosome	652	39 [6.0%]	73 [11%]	246 [38%]	294 [45%]

The percentage of sites in each site class is shown in brackets.

Table 1. Numbers of Mg2+ sites included in the benchmark dataset for the four site classes described in the text.