Chains and heterogens:
PDB Chain Sequences:
>1c3wA (A:) tgrpewiwlalgtalmglgtlyflvkgmgvsdpdakkfyaittlvpaiaftmylsmllgy gltmvpfggeqnpiywaryadwlfttplllldlallvdadqgtilalvgadgimigtglv galtkvysyrfvwwaistaamlyilyvlffgfsmrpevastfkvlrnvtvvlwsaypvvw ligsegagivplnietllfmvldvsakvgfglillrsraifg