Chains and heterogens:
PDB Chain Sequences:
>1e25A (A:) spllkeqiesivigkkatvgvavwgpddlepllinpfekfpmqsvfklhlamlvlhqvdq gkldlnqtvivnrakvlqntwapimkayqgdefsvpvqqllqysvshsdnvacdllfelv ggpaalhdyiqsmgiketavvaneaqmhaddqvqyqnwtsmkgaaeilkkfeqktqlset sqallwkwmvetttgperlkgllpagtvvahktgtsqikagktaatndlgiillpdgrpl lvavfvkdsaessrtneaiiaqvaqtayqfelkklsal