Chains and heterogens:
PDB Chain Sequences:
>1j8rA (A:) wnnivfyslgdvnsyqggnvvitqrpqfitswrpgiatvtwnqcngpefadgfwayyrey iawvvfpkkvmtqngyplfievhnkgswseentgdndsyfflkgykwderafdagnlcqk pgeitrltekfddiifkvalpadlplgdysvkipytsgmqrhfasylgarfkipynvakt lprenemlflfknigg