Sinorhizobium meliloti Nia is a P1B-5-ATPase expressed in the nodule during plant symbiosis and is involved in Ni and Fe transport - Zielazinski, Eliza L; Gonzalez-Guerrero, Manuel; Subramanian, Poorna; Stemmler, Timothy L; Argueello, Jose M; Rosenzweig, Amy C (Metallomics, 2013)