>sp|C3NFS7|NDK_SULIN Nucleoside diphosphate kinase OS=Sulfolobus islandicus GN=ndk MVMQRTFVMIKPDGVKRGLIGEIISRFEKRGLKIVSLKMVKMSRDIAEKLYDEHKGKSFF EELVNYVTSGPVVCMVIEGDDVVQVIRRMIGNTDPKEAPPGTIRGDYALSKSENVIHASD SIEKAQREMSLFFDKSDL