Please rephrase whole paragraph in third person past tense.
In this experiment there is report of first crystal structure (at 2.37 Å resolution) of Ni(II)HpNikR prepared directly from the holo-protein. The protein contains four nickel ions located in two distinct coordination environments. Two nickel ions are bound to sites in a four-coordinate square planar geometry as predicted based on the structures of NikR from E. coli and P. horikoshii. The remaining two nickel ions are bound to sites with unexpected 5 or 6 coordination geometries which were previously thought to be involved in nickel incorporation into the protein. The nickel with 5/6 coordination geometry utilizes three histidines from two separate monomeric HpNikR units along with two or three water molecules as ligands. The spatial location of the nickel in the 5/6 coordinate site is within approximately 5 Å of the expected site if a 4- coordinate square planar geometry occurred.8
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