Chains and heterogens:
PDB Chain Sequences:
>1rrgA (A:) mgnifanlfkglfgkkemrilmvgldaagkttilyklklgeivttiptigfnvetveykn isftvwdvggqdkirplwrhyfqntqglifvvdsndrervneareelmrmlaedelrdav llvfankqdlpnamnaaeitdklglhslrhrnwyiqatcatsgdglyegldwlsnqlrnq k
>1rrgA (A:) gnifanlfkglfgkkemrilmvgldaagkttilyklklgeivttiptigfnvetveykni sftvwdvggirplwrhyfqntqglifvvdsndrervneareelmrmlaedelrdavllvf ankqdlpnamnaaeitdklglhslrhrnwyiqatcatsgdglyegldwlsnqlrnqk
>1rrgB (B:) mgnifanlfkglfgkkemrilmvgldaagkttilyklklgeivttiptigfnvetveykn isftvwdvggqdkirplwrhyfqntqglifvvdsndrervneareelmrmlaedelrdav llvfankqdlpnamnaaeitdklglhslrhrnwyiqatcatsgdglyegldwlsnqlrnq k
>1rrgB (B:) gnifanlfkglfgkkemrilmvgldaagkttilyklklgeivttiptigfnvetveykni sftvwdvggirplwrhyfqntqglifvvdsndrervneareelmrmlaedelrdavllvf ankqdlpnamnaaeitdklglhslrhrnwyiqatcatsgdglyegldwlsnqlrnqk