Chains and heterogens:
PDB Chain Sequences:
>1hygA (A:) mkvtiigasgrvgsatalllakepfmkdlvligrehsinkleglrediydalagtrsdan iyvesdenlriidesdvviitsgvprkegmsrmdlaktnakivgkyakkiaeicdtkifv itnpvdvmtykalvdskfernqvfglgthldslrfkvaiakffgvhidevrtriigehgd smvpllsatsiggipiqkferfkelpideiiedvktkgeqiirlkggsefgpaaailnvv rcivnnekrlltlsayvdgefdgirdvcigvpvkigrdgieevvsieldkdeiiafrksa eiikkyceevknl
>1hygB (B:) mkvtiigasgrvgsatalllakepfmkdlvligrehsinkleglrediydalagtrsdan iyvesdenlriidesdvviitsgvprkegmsrmdlaktnakivgkyakkiaeicdtkifv itnpvdvmtykalvdskfernqvfglgthldslrfkvaiakffgvhidevrtriigehgd smvpllsatsiggipiqkferfkelpideiiedvktkgeqiirlkggsefgpaaailnvv rcivnnekrlltlsayvdgefdgirdvcigvpvkigrdgieevvsieldkdeiiafrksa eiikkyceevknl