Chains and heterogens:
PDB Chain Sequences:
>2a7vA (A:) gsgqlvrmairaqhsnaaqtqtgeanrgwtgqeslsdsdpemwellqrekdrqcrgleli asenfcsraalealgsclnnkysegypgkryyggaevvdeiellcqrraleafdldpaqw gvnvqpysgspanlavytallqphdrimgldlpdgghlthgymsdvkrisatsiffesmp yklnpktglidynqlaltarlfrprliiagtsayarlidyarmrevcdevkahlladmah isglvaakvipspfkhadivtttthktlrgarsglifyrkgvkavdpktgreipytfedr infavfpslqggphnhaiaavavalkqactpmfreyslqvlknaramadallergyslvs ggtdnhlvlvdlrpkgldgaraervlelvsitankntcpgdrsaitpgglrlgapaltsr qfreddfrrvvdfidegvniglevksktaklqdfksfllkdsetsqrlanlrqrveqfar afpmpgfdeh
>2a7vA (A:) gwtgqeslsdsdpemwellqrekdrqcrgleliasenfcsraalealgsclnnkysegvd eiellcqrraleafdldpaqwgvnvqpysgspanlavytallqphdrimgyklnpktgli dynqlaltarlfrprliiagtsayarlidyarmrevcdevkahlladmahisglvaakvi pspfkhadivtttthktlrgarsglifyrkgvkavdpktgreipytfedrinfavfpslq ggphnhaiaavavalkqactpmfreyslqvlknaramadallergyslvsggtdnhlvlv dlrpkgldgaraervlelvsitankntcpgdrsaitpgglrlgapaltsrqfreddfrrv vdfidegvniglevksktaklqdfksfllkdsetsqrlanlrqrveqfarafpmpgfdeh