Chains and heterogens:
PDB Chain Sequences:
>1r52A (A:) mstfgklfrvttygeshcksvgcivdgvppgmslteadiqpqltrrrpgqsklstprdek drveiqsgtefgktlgtpiammiknedqrphdysdmdkfprpshadftysekygikassg ggrasaretigrvasgaiaekflaqnsnveivafvtqigeikmnrdsfdpefqhllntit rekvdsmgpircpdasvaglmvkeiekyrgnkdsiggvvtcvvrnlptglgepcfdklea mlahamlsipaskgfeigsgfqgvsvpgskhndpfyfeketnrlrtktnnsggvqggisn geniyfsvpfksvatisqeqktatydgeegilaakgrhdpavtpraipiveamtalvlad alliqkardfsrsvvhhhhhhh
>1r52A (A:) mstfgklfrvttygeshcksvgcivdgvppgmslteadiqpqltrrrdrveiqsgtefgk tlgtpiammiketigrvasgaiaekflaqnsnveivafvtqigeikmnrdsfdpefqhll ntitrekvdsmgpircpdasvaglmvkeiekyrgnkdsiggvvtcvvrnlptglgepcfd kleamlahamlsipaskgfeigsgfqgvsvpgskhndpfyftktnnsggvqggisngeni yfsvpfksvrhdpavtpraipiveamtalvladalliqkardf
>1r52B (B:) mstfgklfrvttygeshcksvgcivdgvppgmslteadiqpqltrrrpgqsklstprdek drveiqsgtefgktlgtpiammiknedqrphdysdmdkfprpshadftysekygikassg ggrasaretigrvasgaiaekflaqnsnveivafvtqigeikmnrdsfdpefqhllntit rekvdsmgpircpdasvaglmvkeiekyrgnkdsiggvvtcvvrnlptglgepcfdklea mlahamlsipaskgfeigsgfqgvsvpgskhndpfyfeketnrlrtktnnsggvqggisn geniyfsvpfksvatisqeqktatydgeegilaakgrhdpavtpraipiveamtalvlad alliqkardfsrsvvhhhhhhh
>1r52B (B:) mstfgklfrvttygeshcksvgcivdgvppgmslteadiqpqltrrrrveiqsgtefgkt lgtpiammikretigrvasgaiaekflaqnsnveivafvtqigeikmnrdsfdpefqhll ntitrekvdsmgpircpdasvaglmvkeiekyrgnkdsiggvvtcvvrnlptglgepcfd kleamlahamlsipaskgfeigsgfqgvsvpgskhndpfytktnnsggvqggisngeniy fsvpfksvrhdpavtpraipiveamtalvladalliqkardf
>1r52C (C:) mstfgklfrvttygeshcksvgcivdgvppgmslteadiqpqltrrrpgqsklstprdek drveiqsgtefgktlgtpiammiknedqrphdysdmdkfprpshadftysekygikassg ggrasaretigrvasgaiaekflaqnsnveivafvtqigeikmnrdsfdpefqhllntit rekvdsmgpircpdasvaglmvkeiekyrgnkdsiggvvtcvvrnlptglgepcfdklea mlahamlsipaskgfeigsgfqgvsvpgskhndpfyfeketnrlrtktnnsggvqggisn geniyfsvpfksvatisqeqktatydgeegilaakgrhdpavtpraipiveamtalvlad alliqkardfsrsvvhhhhhhh
>1r52C (C:) mstfgklfrvttygeshcksvgcivdgvppgmslteadiqpqltrrrdrveiqsgtefgk tlgtpiammikretigrvasgaiaekflaqnsnveivafvtqigeikmnrdsfdpefqhl lntitrekvdsmgpircpdasvaglmvkeiekyrgnkdsiggvvtcvvrnlptglgepcf dkleamlahamlsipaskgfeigsgfqgvsvpgskhndpfytktnnsggvqggisngeni yfsvpfksvrhdpavtpraipiveamtalvladalliqkardf
>1r52D (D:) mstfgklfrvttygeshcksvgcivdgvppgmslteadiqpqltrrrpgqsklstprdek drveiqsgtefgktlgtpiammiknedqrphdysdmdkfprpshadftysekygikassg ggrasaretigrvasgaiaekflaqnsnveivafvtqigeikmnrdsfdpefqhllntit rekvdsmgpircpdasvaglmvkeiekyrgnkdsiggvvtcvvrnlptglgepcfdklea mlahamlsipaskgfeigsgfqgvsvpgskhndpfyfeketnrlrtktnnsggvqggisn geniyfsvpfksvatisqeqktatydgeegilaakgrhdpavtpraipiveamtalvlad alliqkardfsrsvvhhhhhhh
>1r52D (D:) mstfgklfrvttygeshcksvgcivdgvppgmslteadiqpqltrrrrveiqsgtefgkt lgtpiammikretigrvasgaiaekflaqnsnveivafvtqigeikmnrdsfdpefqhll ntitrekvdsmgpircpdasvaglmvkeiekyrgnkdsiggvvtcvvrnlptglgepcfd kleamlahamlsipaskgfeigsgfqgvsvpgskhndpfytktnnsggvqggisngeniy fsvpfksvrhdpavtpraipiveamtalvladalliqkardf