>6sy3A (A:) observed residues (from ATOM records)
ivggytcgantvpyqvslnsgyhfcggslinsqwvvsaahcyksgiqvrlgedninvveg
neqfisasksivhpsynsntlnndimliklksaaslnsrvasislptscasagtqclisg
wgntkssgtsypdvlkclkapilsdsscksaypgqitsnmfcagyleggkdscqgdsggp
vvcsgklqgivswgsgcaqknkpgvytkvcnyvswikqtiasn