>2q4vA (A:) observed residues (from ATOM records)
svrireakegdcgdilrlirelaefeklkiseealradgfgdnpfyhclvaeilgpcvvg
ygiyyfiystwkgrtiylediyvmpeyrgqgigskiikkvaevaldkgcsqfrlavldwn
qramdlykalgaqdlteaegwhffcfqgeatrklag