>1px5B (B:) observed residues (from ATOM records)
melrhtpardldkfiedhllpntcfrtqvkeaidivcrflkercfqgtadpvrvskvvkg
gssgkgrgrsdadlvvfltkltsfedqlrrrgefiqeirrqleacqreqkfkvtfevqsp
ralsfvlsspqlqqevefdvlpafdalgqwtpgykpnpeiyvqlikecksrgkegefstc
ftelqrdflrnrptklkslirlvkhwyqtckkthgnklppqyalelltvyaweqgsrktd
fstaqgfqtvlelvlkhqklcifweayydftnpvvgrcmlqqlkkprpvildpadptgnv
gggdthswqrlaqearvwlgypccknldgslvgawtmlqki