>4ap7A (A:) observed residues (from ATOM records)
hidlsalnpelvqavqhvvigpsslivhfnevigrghfgcvyhgtllkkihcavkslnri
tdigevsqfltegiimkdfshpnvlsllgiclrsegsplvvlpymkhgdlrnfirnethn
ptvkdligfglqvakgmkylaskkfvhrdlaarncmldekftvkvadfglardmydkeyy
svhnktgaklpvkwmaleslqtqkfttksdvwsfgvllwelmtrgappypdvntfditvy
llqgrrllqpeycpdplyevmlkcwhpkaemrpsfselvsrisaifstfi