>2arzA (A:) observed residues (from ATOM records)
sveaaknarelllkeyravlsthskkwpgfpfgsvvpycldaegrplilisriaqhthnl
qadprcsmlvgergaediqavgrltllaearqlaeeevaaaaeryyryfpesadyhrvhd
fdfwvlqpvqwrfiggfgaihwlaaervplanpfageaergmvehmnsdhaaaiahyvel
aglpahaaaqlagidtegfhlrigqglhwlpfpaacgnpgavrqalvqlaraerwptv