Chains and heterogens:
PDB Chain Sequences:
>2an0A (A:) gshaailwneakafiaecyaelgkaeevadrldsikseidrtgsyvhtkeelehgakmaw rnsnrcigrlfwnslnvidrrdvrtkedvrdalfhhietatnngkirpsitifppeekge kqveiwnhqliryagyegeaigdpasrsltaaceqlgwrgertdfdllplifrmrgdeqp vwyelprslvievpithpdieafsdlelkwygvpiisdmklevggihynaapfngwymgt eigarnladekrydklkkvasvigistnyntdlwkdqalvelnkavlysykkqgvsivdh htaasqfkrfeeqeeeagrkltgdwtwlippisgaathifhrsydnsivkpnyfyqdkpy e