>6l70A (A:) observed residues (from ATOM records)
aglrkmaqpsgvvekcivrvcygnmalnglwlgdtvmcprhviassttstidydyalsvl
rlhnfsissgnvflgvvgvtmrgallqikvnqnnvhtpkytyrtvrpgesfnilacydga
aagvygvnmrsnytirgsfingacgspgyninngtvefcylhqlelgsgchvgsdldgvm
yggyedqptlqvegasslftenvlaflyaalingstwwlsssriavdrfnewavhngmtt
vvntdcfsilaaktgvdvqrllasiqslhknfggkqilgytsltdefttgevirqmygv