>4n91A (A:) observed residues (from ATOM records)
ktiirvghnqsqnhpthlgllafeeyvedklgdkydiqvypsellgsqidmvqltqtgai
nicvasnailetfndvweifnlpylfasseayhhvmddpeivkpifestreggfegvtwl
dagsrsfytkdkpvnspedlsglkirvqqsptnvrmmdllgssaspmgfgevytalqsgi
idgaennemsltdnghgevckyysydmhqmvpdivianyswleglpeedrkvfdegfkvl
nevqrkewkvavdkakekasemgvefiypdqkpfvdavapltkevlerndklapfydaiq
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