Chains and heterogens:
PDB Chain Sequences:
>1x72A (A:) mslkrmlaefekiqailmafphefsdwaycieearesflhiiqtiakhakvlvcvhtndt igyemlknlpgveiaridtndtwardfgaisienhgvlecldfgfngwglkypsnldnqv nfklkhlgflkhplktmpyileggsiesdgagsiltntqclleknrnphlnqngietmlk kelgakqvlwysygylkgddtdshtdtlarflnkdtivysacedendehytalkkmqeel ktfkkldgtpyklipleipkaiynenqqrlpatyvnfllcnnalivptyndpndtlilet lrqhtplevigvdcntlikqhgslhcvtmqlyeg