>2cftA (A:) observed residues (from ATOM records)
marcerlrgaalrdvlgraqgvlfdcdgvlwngeravpgapellerlaragkaalfvsnn
srrarpelalrfarlgfgglraeqlfssalcaarllrqrlpgppdgavfvlggeglrael
raaglrlagdpsagdgaaprvravlvgydehfsfaklreacahlrdpecllvatdrdpwh
plsdgsrtpgtgslaaavetasgrqalvvgkpspymfecitenfsidpartlmvgdrlet
dilfghrcgmttvltltgvsrleeaqaylaagqhdlvphyyvesiadltegle