>2cksA (A:) observed residues (from ATOM records)
gtpverygkvqvcgtqlcdehgnpvqlrgmsthgiqwfdhcltdssldalaydwkadiir
lsmyiqedgyetnprgftdrmhqlidmatarglyvivdwhiltpgdphynldraktffae
iaqrhasktnvlyeianepngvswasiksyaeevipvirqrdpdsviivgtrgwsslgvs
egsgpaeiaanpvnasnimyafhfyaashrdnylnalreaselfpvfvtefgtetytgdg
andfqmadryidlmaerkigwtkwnysddfrsgavfqpgtcasggpwsgsslkasgqwvr
sklqs