>1ddtA (A:) observed residues (from ATOM records)
gaddvvdssksfvmenfssyhgtkpgyvdsiqkgiqkpksgtqgnydddwkgfystdnky
daagysvdnenplsgkaggvvkvtypgltkvlalkvdnaetikkelglslteplmeqvgt
eefikrfgdgasrvvlslpfaegsssveyinnweqakalsveleinfetrgkrgqdamye
ymaqacascinldwdvirdktktkieslkehgpiknkmsespnktvseekakqyleefhq
talehpelselktvtgtnpvfaganyaawavnvaqvidsetadnlekttaalsilpgigs
vmgiadgavhhnteeivaqsialsslmvaqaiplvgelvdigfaaynfvesiinlfqvvh
nsynrpayspghktqpflhdgyavswntvedsiirtgfqgesghdikitaentplpiagv
llptipgkldvnkskthisvngrkirmrcraidgdvtfcrpkspvyvgngvhanlhvafh
rsssekihsneissdsigvlgyqktvdhtkvnsklslffeiks