Chains and heterogens:
PDB Chain Sequences:
>1sefA (A:) mslmgyknnrvgyqkelltsravikkdnyaiiphdglvqnavpgfenvdisilgspklga tfvdyiatfhkngqqttgfggdgiqtlvyvidgrlrvsdgqetheleaggyayftpemkm ylanaqeadtevflykkryqplaghqpykvvgsihdqqpeeyegmtdvllwsllpkefdf dmnmhilsfepgashayiethvqehgaylisgqgmynldnewypvekgdyifmsayvpqa ayavgreeplmyvyskdanrepeleggshhhhhh
>1sefA (A:) kelltsravikkdnyaiiphdglvqnavpgfenvdisilgspklgatfvdyiatfhkngq qttgfggdgiqtlvyvidgrlrvsdgqetheleaggyayftpemkmylanaqeadtevfl ykkryqplaghqpykvvgsihdqqpeeyegmtdvllwsllpkefdfdmnmhilsfepgas hayiethvqehgaylisgqgmynldnewypvekgdyifmsayvpqaayavgreeplmyvy skdanrepel