>3tlkC (C:) observed residues (from ATOM records)
dwprqitdsrgthtlesqpqrivstsvtltgsllaidapviasgattpnnrvaddqgflr
qwskvakerklqrlyigepsaeavaaqmpdlilisatggdsalalydqlstiaptliiny
ddkswqslltqlgeitghekqaaeriaqfdkqlaaakeqiklppqpvtaivytaaahsan
lwtpesaqgqmleqlgftlaklpaglnasqsqgkrhdiiqlggenlaaglngeslflfag
dqkdadaiyanpllahlpavqnkqvyalgtetfrldyysamqvldrlkalflehh