Chains and heterogens:
PDB Chain Sequences:
>3dc0A (A:) psiksgtilhawnwsfntlknnmkdihdagytaiqtspinqvkegnkgdksmgnwywlyq ptsyqignrylgseeefkemcaaaeeygvkvivdavinhttsdyaaisneiksisnwthg ntqiknwsdrwdvtqnsllglydwntqntqvqsylkrfleralndgadgfrydaakhiel pddgnygsqfwpnitntsaefqygeilqdsasrdaayanymnvtasnyghsirsalknrn lsvsnishyasdvsadklvtwveshdtyanddeestwmsdddirlgwaviasrsgstplf fsrpdgggngvrfpgktqigdrgsalfedqaivavntfhnvmagqpeelsnpngnnqifm nqrgskgvvlanagsssvsinastklpdgsydnkagtgsfqvrdgkltgtinarsvavly pd