Additions and corrections

Holo-Ni²⁺ Helicobacter pylori NikR contains four square-planar nickel-binding sites at physiological pH

Stefano Benini, Michele Cianci and Stefano Ciurli

Dalton Trans., 2011, 40, 7831 (DOI: 10.1039/C1DT11107H). Amendment published 28^th September 2011.

On page 7832 of the above article the author would like to change the following sentance from

"To avoid the possible influence of crystal packing strain on the Ni²⁺ binding event, HpNikR was later crystallized from a solution containing Ni²⁺, at pH 5.6.¹⁴"

to

"To avoid the possible influence of crystal packing strain on the Ni²⁺ binding event, HpNikR isolated in the holo-form was later crystallized at pH 5.6.¹⁴"

The Royal Society of Chemistry apologises for these errors and any consequent inconvenience to authors and readers.

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