>2ar7A (A:) observed residues (from ATOM records)
kllravilgppgsgkgtvcqriaqnfglqhlssghflrenikastevgemakqyieksll
vpdhvitrlmmselenrrgqhwlldgfprtlgqaealdkicevdlvislnipfetlkdrl
srrwihppsgrvynldfnpphvhgiddvtgeplvqqeddkpeavaarlrqykdvakpvie
lyksrgvlhqfsgtetnkiwpyvytlfsnkitpiqskeayl