Chains and heterogens:
PDB Chain Sequences:
>1npxA (A:) mkvivlgsshggyeaveellnlhpdaeiqwyekgdfisflscgmqlylegkvkdvnsvry mtgekmesrgvnvfsnteitaiqpkehqvtvkdlvsgeervenydkliispgavpfeldi pgkdldniylmrgrqwaiklkqktvdpevnnvvvigsgyigieaaeafakagkkvtvidi ldrplgvyldkeftdvlteemeannitiatgetveryegdgrvqkvvtdknaydadlvvv avgvrpntawlkgtlelhpngliktdeymrtsepdvfavgdatlikynpadtevnialat narkqgrfavknleepvkpfpgvqgssglavfdykfastginevmaqklgketkavtvve dylmdfnpdkqkawfklvydpettqilgaqlmskadltaninaislaiqakmtiedlaya dfffqpafdkpwniintaaleavkqer