Chains and heterogens:
PDB Chain Sequences:
>1lauE (E:) ldwttfrrvfliddawrplmepelanpltahllaeynrrcqteevlppredvfswtryct pdevrvviigqdpyhhpgqahglafsvranvppppslrnvlaavkncypearmsghgcle kwardgvlllnttltvkrgaaashsrigwdrfvggvirrlaarrpglvfmlwgthaqnai rpdprvhcvlkfshpsplskvpfgtcqhflvanryletrsispidwsv