Chains and heterogens:
PDB Chain Sequences:
>1cs6A (A:) rsygpvfeeqpahtlfpegsaeekvtltcraranppatyrwkmngtelkmgpdsryrlva gdlvisnpvkakdagsyqcvatnargtvvsreaslrfgflqefsaeerdpvkitegwgvm ftcsppphypalsyrwllnefpnfipadgrrfvsqttgnlyiakteasdlgnyscfatsh idfitksvfskfsqlslaaedarqyapsikakfpadtyaltgqmvtlecfafgnpvpqik wrkldgsqtskwlssepllhiqnvdfedegtyeceaenikgrdtyqgriiihaqpdwldv itdteadigsdlrwscvasgkprpavrwlrdgqplasqnrievsggelrfsklvledsgm yqcvaenkhgtvyasaeltvqa