>2tnfC (C:) observed residues (from ATOM records)
sdkpvahvvanhqveeqlewlsqranallangmdlkdnqlvvpadglylvysqvlfkgqg
cpdyvllthtvsrfaisyqekvnllsavkspcpkdtpegaelkpwyepiylggvfqlekg
dqlsaevnlpkyldfaesgqvyfgvial