Backbone 1H, 13C, and 15N assignments of a 56 kDa E. coli nickel binding protein NikA - Rajesh, Sundaresan; Heddle, Jonathan G.; Kurashima-Ito, Kaori; Nietlispach, Daniel; Shirakawa, Masahiro; Tame, Jeremy R.H.; Ito, Yutaka (Biological Magnetic Resonance Bank, 2005)