>6w90_A mol:protein length:131 NTF2 fold protein loop-helix-loop design NT-9GSHMSREEIRKVVEEYIRLLYTDPDQFKKAARDKLLSPDVRIEIGNYTFDSRNLDRFLDAMQEWASRYDRVEIRKVQVDGNHVRVEIELESNGKKWTFEIEVEVRNGKIKRIRQQVDPEYKKVVQNLWNNT