>3qk1A (A:) observed residues (from ATOM records)
ivggytcgantvpyqvslnsgyhfcggslinsqwvvsaahcyksgiqvrlgedninvveg
neqfisasksivhpsynkrrknndimliklksaaslnsrvasislptscasagtqclisg
wgntkssgtsypdvlkclkapilsdsscksaypgqitsnmfcagyleggkdscqgdsggp
vvcsgklqgivswgsgcaqknkpgvytkvcnyvswikqtiasnh