Chains and heterogens:
PDB Chain Sequences:
>4matA (A:) aisiktpediekmrvagrlaaevlemiepyvkpgvstgeldricndyivneqhavsaclg yhgypksvcisinevvchgipddakllkdgdivnidvtvikdgfhgdtskmfivgkptim gerlcritqeslylalrmvkpginlreigaaiqkfveaegfsvvreycghgigqgfheep qvlhydsretnvvlkpgmtftiepmvnagkkeirtmkdgwtvktkdrslsaqyehtivvt dngceiltlrkddtipaiishdelvprgsle