>2nn6D (D:) observed residues (from ATOM records)
gcslrhfaceqnllsrpdgsasflqgdtsvlagvygpaevknkatlevilrpkiglpgva
eksrerlirntceavvlgtlhprtsitvvlqvvsdagsllacclnaacmalvdagvpmra
lfcgvacaldsdgtlvldptskqekearavltfaldsverkllmsstkglysdtelqqcl
aaaqaasqhvfrfyreslqrrysks