>4zkhH (H:) observed residues (from ATOM records) seelldlfnrqvtqeftasqvylsasiwfdqndwegmaaymlaqsaeerehglgfvdfan krnipielqavpapvscaewsspedvwqsileleqantrsllnlaeaastchdfavmafl npfhlqqvneedkigsilakvtdenrtpgllrsldvvsf