>4itwF (F:) observed residues (from ATOM records)
eelldlfnrqvtqeftasqvylsasiwfdqndwegmaaymlaesaeerehglgfvdfank
rnipielqavpapvscaewsspedvwqsileleqantrsllnlaeaastchdfavmafln
pfhlqqvneedkigsilakvtdenrtpgllrsldvv