>1sl6E (E:) observed residues (from ATOM records)
peksklqeiyqeltqlkaaqiyqeltdlktaferlcrhcpkdwtffqgncyfmsnsqrnw
hdsvtacqevraqlvviktaeeqnflqlqtsrsnrfswmglsdlnqegtwqwvdgsplsp
sfqrywnsgepnnsgnedcaefsgsgwndnrcdvdnywickkpaacfr