2W5X: Structure Of Tab5 Alkaline Phosphatase Mutant His 135 Glu With Mg Bound In The M3 Site.
reference: Coordination sphere of the third metal site is essential to the activity and metal selectivity of alkaline phosphatases., Koutsioulis D, Lyskowski A, Maki S, Guthrie E, Feller G, Bouriotis V, Heikinheimo P, Protein Sci. 2009 Nov 13. PMID: 19916164

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