>3vc7A (A:) observed residues (from ATOM records)
nyqgkkaiviggthgmglatvrrlveggaevlltgrnesniarireefgprvhalrsdia
dlneiavlgaaagqtlgaidllhinagvselepfdqvseasydrqfavntkgafftvqrl
tplireggsivftssvadegghpgmsvysaskaalvsfasvlaaellprgirvnsvspgf
idtraefktlgdnitpmkrngtadevaravlflafeatfttgaklavdgglgqklst