>5trgS (S:) observed residues (from ATOM records)
meqamrerselarkgiaraksvvalayaggvlfvaenpsrslqkiselydrvgfaaagkf
nefdnlrrggiqfadtrgyaydrrdvtgrqlanvyaqtlgtifteqakpyevelcvaeva
hygetkrpelyritydgsiadephfvvmggttepianalkesyaenasltdalriavaal
ragslgvaslevavldanrprrafrritgsalqallvd