>sp|Q4JAV3|NDK_SULAC Nucleoside diphosphate kinase OS=Sulfolobus acidocaldarius GN=ndk MTLQRTFVMIKPDGVRRRLVGEIISRFEKRGFNILALKMVHMDRATAERLYQEHKGKGFF NELINYIISGPVVCMIIEGDDAVSVVRKMIGATDPKEASPGTIRGDYALSKSENVIHASD SEEKAKTEMGIFFQDVTEIGAQARM