>4kb3A (A:) observed residues (from ATOM records)
atvrdpapqfsgkavvdgaikeinsndykgkyivlffypmdftfvcpteiiafsdrylef
eklntqviavscdseyshlawvntprkkgglgemkipvladksmeiardygvliesagia
lrglfvidkkgtlrhstindlpvgrnvdevlrvveafqyaden