>3rvxC (C:) observed residues (from ATOM records)
qivmtqspfsmyatlgervtitckasqdiysylswlqqkpgkslktliyranrlitgvps
rfsgsgsgqdysltissleyedmgiyyclqydefpytfgggtklemkradaaptvsifpp
sseqltsggasvvcflnnfypkdinvkwkidgserqngvlnswtdqdskdstysmsstlt
ltkdeyerhnsytceathktstspivksfnr