Chains and heterogens:
PDB Chain Sequences:
>7ch5H (H:) evqlvesgggliqpggslrlscaasefivsrnymswvrqapgkglewvsviysggstyya dsvkgrftisrdnskntlnlqmnslraedtavyycardygdyyfdywgqgtlvtvssast kgpsvfplapsskstsggtaalgclvkdyfpepvtvswnsgaltsgvhtfpavlqssgly slssvvtvpssslgtqtyicnvnhkpsntkvdkkvepkscdk
>7ch5H (H:) evqlvesgggliqpggslrlscaasefivsrnymswvrqapgkglewvsviysggstyya dsvkgrftisrdnskntlnlqmnslraedtavyycardygdyyfdywgqgtlvtvssast kgpsvfplapsgtaalgclvkdyfpepvtvswnsgaltsgvhtfpavlqssglyslssvv tvpssslgtqtyicnvnhkpsntkvdkkvep
>7ch5L (L:) eivltqspgtlslspgeratlscrasqgvssflawyqqkpgqaprllihgassratgipd rfsgsgsgtdftltitrlepedfavyycqqygssprtfgqgtkveikrtvaapsvfifpp sdeqlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskdstyslsstlt lskadyekhkvyacevthqglsspvtksfnrgec
>7ch5L (L:) eivltqspgtlslspgeratlscrasqgvssflawyqqkpgqaprllihgassratgipd rfsgsgsgtdftltitrlepedfavyycqqygssprtfgqgtkveikrtvaapsvfifpp sdeqlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskdstyslsstlt lskadyekhkvyacevthqglsspvtksfnrge
>7ch5R (R:) rvqptesivrfpnitnlcpfgevfnatrfasvyawnrkrisncvadysvlynsasfstfk cygvsptklndlcftnvyadsfvirgdevrqiapgqtgkiadynyklpddftgcviawns nnldskvggnynylyrlfrksnlkpferdisteiyqagstpcngvegfncyfplqsygfq ptngvgyqpyrvvvlsfellhapatvcgpkkstnlvknkcvnf
>7ch5R (R:) nlcpfgevfnatrfasvyawnrkrisncvadysvlynsasfstfkcygvsptklndlcft nvyadsfvirgdevrqiapgqtgkiadynyklpddftgcviawnsnnldskvggnynyly rlfrksnlkpferdisteiyqagstpcngvegfncyfplqsygfqptngvgyqpyrvvvl sfe