Chains and heterogens:
PDB Chain Sequences:
>1suc_ (-) vpygvsqikapalhsqgytgsnvkvavidsgidsshpdlkvaggasfvpsetnpfqdnns hgthvagtvaavapsaslyavkvlgadgsgqyswiingiewaiannmdvinmslggpsgs aalkaavdkavasgvvvvaaagnegtsgssstvgypgkypsviavgavdssnqrasfssv gpeldvmapgvsiqstlpgnkygaksgtcmasphvagaaalilskhpnwtntqvrsslen tttklgdsfyygkglinvqaaaq