>2v23A (A:) observed residues (from ATOM records)
tplvhvasvekgrsyedfqkvynaialklreddeydnaigygpvlvrlawhtsgtwdkhd
ntggsyggtyrfkkefndpsnaglqngfkflepihkefpwissgdlfslggvtavqemqg
pkipwrcgrvdtpedttpdngrlpdadkdadyvrtffqrlnmndrevvalmgahalgkth
lkrsgyegpwgaannvftnefylnllnenwklekndanneqwdsksgymmlptdysliqd
pkylsivkeyandqdkffkdfskafekllengitfpkdapspfifktleeqgl