Chains and heterogens:
PDB Chain Sequences:
>1px5A (A:) melrhtpardldkfiedhllpntcfrtqvkeaidivcrflkercfqgtadpvrvskvvkg gssgkgttlrgrsdadlvvfltkltsfedqlrrrgefiqeirrqleacqreqkfkvtfev qsprrenpralsfvlsspqlqqevefdvlpafdalgqwtpgykpnpeiyvqlikecksrg kegefstcftelqrdflrnrptklkslirlvkhwyqtckkthgnklppqyalelltvyaw eqgsrktdfstaqgfqtvlelvlkhqklcifweayydftnpvvgrcmlqqlkkprpvild padptgnvgggdthswqrlaqearvwlgypccknldgslvgawtmlqki
>1px5A (A:) melrhtpardldkfiedhllpntcfrtqvkeaidivcrflkercfqgpvrvskvvkggss rsdadlvvfltkltsfedqlrrrgefiqeirrqleacqreqkfkvtfevqspalsfvlss pqlqqevefdvlpafdalgqwtpgykpnpeiyvqlikecksrgkegefstcftelqrdfl rnrptklkslirlvkhwyqtckkthgnklppqyalelltvyaweqgsrktdfstaqgfqt vlelvlkhqklcifweayydftnpvvgrcmlqqlkkprpvildpadptgnvgggdthswq rlaqearvwlgypccknldgslvgawtml
>1px5B (B:) melrhtpardldkfiedhllpntcfrtqvkeaidivcrflkercfqgtadpvrvskvvkg gssgkgttlrgrsdadlvvfltkltsfedqlrrrgefiqeirrqleacqreqkfkvtfev qsprrenpralsfvlsspqlqqevefdvlpafdalgqwtpgykpnpeiyvqlikecksrg kegefstcftelqrdflrnrptklkslirlvkhwyqtckkthgnklppqyalelltvyaw eqgsrktdfstaqgfqtvlelvlkhqklcifweayydftnpvvgrcmlqqlkkprpvild padptgnvgggdthswqrlaqearvwlgypccknldgslvgawtmlqki
>1px5B (B:) melrhtpardldkfiedhllpntcfrtqvkeaidivcrflkercfqgtadpvrvskvvkg gssgkgrgrsdadlvvfltkltsfedqlrrrgefiqeirrqleacqreqkfkvtfevqsp ralsfvlsspqlqqevefdvlpafdalgqwtpgykpnpeiyvqlikecksrgkegefstc ftelqrdflrnrptklkslirlvkhwyqtckkthgnklppqyalelltvyaweqgsrktd fstaqgfqtvlelvlkhqklcifweayydftnpvvgrcmlqqlkkprpvildpadptgnv gggdthswqrlaqearvwlgypccknldgslvgawtmlqki