>3k67A (A:) observed residues (from ATOM records)
gevkmmslleemkgiyskkggkvkpfekfegelkegyrfeyekklceidvamfglisgdl
npvhfdedfasktrfggrvvhgmlttslvsaavarlpgtvvlleqsfrytspvrigdvvr
vegvvsgveknrytidvkcytgdkvvaegvvkvliw