Chains and heterogens:
PDB Chain Sequences:
>4btlA (A:) egredpqllvrvrggqlrgirlkapggpvsaflgipfaeppvgsrrfmppepkrpwsgvl dattfqnvcyqyvdtlypgfegtemwnpnrelsedclylnvwtpyprpasptpvliwiyg ggfysgaasldvydgrflaqvegavlvsmnyrvgtfgflalpgsreapgnvglldqrlal qwvqeniaafggdpmsvtlfgesagaasvgmhilslpsrslfhravlqsgtpngpwatvs agearrratllarlvgcppggaggndteliaclrtrpaqdlvdhewhvlpqesifrfsfv pvvdgdflsdtpealintgdfqdlqvlvgvvkdegsyflvygvpgfskdneslisraqfl agvrigvpqasdlaaeavvlhytdwlhpedpthlrdamsavvgdhnvvcpvaqlagrlaa qgarvyayifehrastltwplwmgvphgyeiefifglpldpslnytteerifaqrlmkyw tnfartgdpndprdskspqwppyttaaqqyvslnlkplevrrglraqtcafwnrflpkll sat
>4btlA (A:) egredpqllvrvrggqlrgirlkapggpvsaflgipfaeppvgsrrfmppepkrpwsgvl dattfqnvcyqyvdtlypgfegtemwnpnrelsedclylnvwtpyprpasptpvliwiyg ggfysgaasldvydgrflaqvegavlvsmnyrvgtfgflalpgsreapgnvglldqrlal qwvqeniaafggdpmsvtlfgesagaasvgmhilslpsrslfhravlqsgtpngpwatvs agearrratllarlvgcndteliaclrtrpaqdlvdhewhvlpqesifrfsfvpvvdgdf lsdtpealintgdfqdlqvlvgvvkdegsyflvygvpgfskdneslisraqflagvrigv pqasdlaaeavvlhytdwlhpedpthlrdamsavvgdhnvvcpvaqlagrlaaqgarvya yifehrastltwplwmgvphgyeiefifglpldpslnytteerifaqrlmkywtnfartg dpndprdskspqwppyttaaqqyvslnlkplevrrglraqtcafwnrflpkllsa
>4btlB (B:) egredpqllvrvrggqlrgirlkapggpvsaflgipfaeppvgsrrfmppepkrpwsgvl dattfqnvcyqyvdtlypgfegtemwnpnrelsedclylnvwtpyprpasptpvliwiyg ggfysgaasldvydgrflaqvegavlvsmnyrvgtfgflalpgsreapgnvglldqrlal qwvqeniaafggdpmsvtlfgesagaasvgmhilslpsrslfhravlqsgtpngpwatvs agearrratllarlvgcppggaggndteliaclrtrpaqdlvdhewhvlpqesifrfsfv pvvdgdflsdtpealintgdfqdlqvlvgvvkdegsyflvygvpgfskdneslisraqfl agvrigvpqasdlaaeavvlhytdwlhpedpthlrdamsavvgdhnvvcpvaqlagrlaa qgarvyayifehrastltwplwmgvphgyeiefifglpldpslnytteerifaqrlmkyw tnfartgdpndprdskspqwppyttaaqqyvslnlkplevrrglraqtcafwnrflpkll sat
>4btlB (B:) edpqllvrvrggqlrgirlkapggpvsaflgipfaeppvgsrrfmppepkrpwsgvldat tfqnvcyqyvdtlypgfegtemwnpnrelsedclylnvwtpyprpasptpvliwiygggf ysgaasldvydgrflaqvegavlvsmnyrvgtfgflalpgsreapgnvglldqrlalqwv qeniaafggdpmsvtlfgesagaasvgmhilslpsrslfhravlqsgtpngpwatvsage arrratllarlvgcgndteliaclrtrpaqdlvdhewhvlpqesifrfsfvpvvdgdfls dtpealintgdfqdlqvlvgvvkdegsyflvygvpgfskdneslisraqflagvrigvpq asdlaaeavvlhytdwlhpedpthlrdamsavvgdhnvvcpvaqlagrlaaqgarvyayi fehrastltwplwmgvphgyeiefifglpldpslnytteerifaqrlmkywtnfartgdp ndprdskspqwppyttaaqqyvslnlkplevrrglraqtcafwnrflpkllsat