>1sl6D (D:) observed residues (from ATOM records)
peksklqeiyqeltqlkaaqiyqeltdlktaferlcrhcpkdwtffqgncyfmsnsqrnw
hdsvtacqevraqlvviktaeeqnflqlqtsrsnrfswmglsdlnqegtwqwvdgsplsp
sfqrywnsgepnnsgnedcaefsgsgwndnrcdvdnywickkpaacfr