Chains and heterogens:
PDB Chain Sequences:
>1eh3A (A:) grrrrsvqwcavsqpeatkcfqwqrnmrrvrgppvscikrdspiqciqaiaenradavtl dggfiyeaglapyklrpvaaevygterqprthyyavavvkkggsfqlnelqglkschtgl rrtagwnvpigtlrpfldwtgppepieaavarffsascvpgadkgqfpnlcrlcagtgen kcafssqepyfsysgafkclrdgagdvafikestvfedlsdeaerdeyellcpdntrkpv dkfkdchlarvpshavvarsvngkedaiwnllrqaqekfgkdkspkfqlfgspsgqkdll fkdsaigfsrvppridsglylgsgyftaiqnlrk
>1eh3A (A:) rsvqwcavsqpeatkcfqwqrnmrrvrgppvscikrdspiqciqaiaenradavtldggf iyeaglapyklrpvaaevygterqprthyyavavvkkggsfqlnelqglkschtglrrta gwnvpigtlrpfldwtgppepieaavarffsascvpgadkgqfpnlcrlcagtgenkcaf ssqepyfsysgafkclrdgagdvafikestvfedlsdeaerdeyellcpdntrkpvdkfk dchlarvpshavvarsvngkedaiwnllrqaqekfgkdkspkfqlfgspsgqkdllfkds aigfsrvppridsglylgsgyfta