>4a71A (A:) observed residues (from ATOM records)
tplvhvasvekgrsyedfqkvynaialklreddeydnaigygpvlvrlawhtsgtwdkhd
ntggsyggtyrfkkefndpsnaglqngfkflepihkefpwissgdlfslggvtavqemqg
pkipwrcgrvdtpedttpdngrlpdadkdadyvrtffqrlnmndrevvalmgahalgkth
lkrsgyegpwgaannvftnefylnllnedwklekndanneqwdsksgymmlptdysliqd
pkylsivkeyandqdkffkdfskafekllengitfpkdapspfifktleeqgl