>2r7aA (A:) observed residues (from ATOM records)
aerivvaggslteliyamgagervvgvdettsyppetaklphigywkqlssegilslrpd
svitwqdagpqivldqlraqkvnvvtlprvpatleqmyanirqlaktlqvpeqgdalvtq
inqrlervqqnvaakkapvkamfilsaggsapqvagkgsvadailslagaenvathqqyk
sysaesliaanpevivvtsqmvdgdinrlrsiagithtaawknqriitvdqnlilgmgpr
iadvveslhqqlwpq