>5trgU (U:) observed residues (from ATOM records)
meqamrerselarkgiaraksvvalayaggvlfvaenpsrslqkiselydrvgfaaagkf
nefdnlrrggiqfadtrgyaydrrdvtgrqlanvyaqtlgtifteqakpyevelcvaeva
hygetkrpelyritydgsiadephfvvmggttepianalkesyaenasltdalriavaal
raglgvaslevavldanrprrafrritgsalqallv