Chains and heterogens:
PDB Chain Sequences:
>1eerA (A:) apprlicdsrvlerylleakeaekittgcaehcslnekitvpdtkvnfyawkrmevgqqa vevwqglallseavlrgqallvkssqpweplqlhvdkavsglrslttllralgaqkeais nsdaasaaplrtitadtfrklfrvysnflrgklklytgeacrtgdr
>1eerB (B:) dpkfeskaallaargpeellcfterledlvcfweeaasagvgpgqysfsyqledepwklc rlhqaptargavrfwcslptadtssfvplelrvtaasgapryhrvihinevvlldapvgl varladesghvvlrwlpppetpmtshiryevdvsagqgagsvqrveilegrtecvlsnlr grtrytfavrarmaepsfggfwsewsepvsllt
>1eerC (C:) dpkfeskaallaargpeellcfterledlvcfweeaasagvgpgqysfsyqledepwklc rlhqaptargavrfwcslptadtssfvplelrvtaasgapryhrvihinevvlldapvgl varladesghvvlrwlpppetpmtshiryevdvsagqgagsvqrveilegrtecvlsnlr grtrytfavrarmaepsfggfwsewsepvsllt