>3s7oA (A:) observed residues (from ATOM records)
plpffpplylggpeittencerepihipgsiqphgalltadghsgevlqmslnaatflgq
eptvlrgqtlaallpeqwpalqaalppgcpdalqyratldwpaaghlsltvhrvgellil
efeptetgphalrnamfalesapnlralaevatqtvreltgfdrvmlykfapdatgevia
earreglhaflghrfpashipaqaralytrhllrltadtraaavpldpvlnpqtnaptpl
ggavlratspmhmqylrnmgvgsslsvsvvvggqlwgliachhqtpyvlppdlrttlesl
grllslqvqvkeale