Chains and heterogens:
PDB Chain Sequences:
>1ewmA (A:) apaavdwrargavtavkdqgqcgscwafsaignvecqwflaghpltnlseqmlvscdktd sgcsgglmnnafewivqenngavytedsypyasgegisppcttsghtvgatitghvelpq deaqiaawlavngpvavavdasswmtytggvmtscvseqldhgvllvgyndsaavpywii knswttqwgeegyiriakgsnqclvkeeassavvg