Chains and heterogens:
PDB Chain Sequences:
>1b99A (A:) mstnkvnkertflavkpdgvarglvgeiiaryekkgfvlvglkqlvptkdlaeshyaehk erpffgglvsfitsgpvvamvfegkgvvasarlmigvtnplasapgsirgdfgvdvgrni ihgsdsvesanreialwfkpeelltevkpnpnlye
>1b99A (A:) vnkertflavkpdgvarglvgeiiaryekkgfvlvglkqlvptkdlaeshyaehkerpff gglvsfitsgpvvamvfegkgvvasarlmigvtnplasapgsirgdfgvdvgrniihgsd svesanreialwfkpeelltevkpnpnlye
>1b99B (B:) mstnkvnkertflavkpdgvarglvgeiiaryekkgfvlvglkqlvptkdlaeshyaehk erpffgglvsfitsgpvvamvfegkgvvasarlmigvtnplasapgsirgdfgvdvgrni ihgsdsvesanreialwfkpeelltevkpnpnlye
>1b99B (B:) vnkertflavkpdgvarglvgeiiaryekkgfvlvglkqlvptkdlaeshyaehkerpff gglvsfitsgpvvamvfegkgvvasarlmigvtnplasapgsirgdfgvdvgrniihgsd svesanreialwfkpeelltevkpnpnlye
>1b99C (C:) mstnkvnkertflavkpdgvarglvgeiiaryekkgfvlvglkqlvptkdlaeshyaehk erpffgglvsfitsgpvvamvfegkgvvasarlmigvtnplasapgsirgdfgvdvgrni ihgsdsvesanreialwfkpeelltevkpnpnlye
>1b99C (C:) vnkertflavkpdgvarglvgeiiaryekkgfvlvglkqlvptkdlaeshyaehkerpff gglvsfitsgpvvamvfegkgvvasarlmigvtnplasapgsirgdfgvdvgrniihgsd svesanreialwfkpeelltevkpnpnlye
>1b99D (D:) mstnkvnkertflavkpdgvarglvgeiiaryekkgfvlvglkqlvptkdlaeshyaehk erpffgglvsfitsgpvvamvfegkgvvasarlmigvtnplasapgsirgdfgvdvgrni ihgsdsvesanreialwfkpeelltevkpnpnlye
>1b99D (D:) vnkertflavkpdgvarglvgeiiaryekkgfvlvglkqlvptkdlaeshyaehkerpff gglvsfitsgpvvamvfegkgvvasarlmigvtnplasapgsirgdfgvdvgrniihgsd svesanreialwfkpeelltevkpnpnlye
>1b99E (E:) mstnkvnkertflavkpdgvarglvgeiiaryekkgfvlvglkqlvptkdlaeshyaehk erpffgglvsfitsgpvvamvfegkgvvasarlmigvtnplasapgsirgdfgvdvgrni ihgsdsvesanreialwfkpeelltevkpnpnlye
>1b99E (E:) vnkertflavkpdgvarglvgeiiaryekkgfvlvglkqlvptkdlaeshyaehkerpff gglvsfitsgpvvamvfegkgvvasarlmigvtnplasapgsirgdfgvdvgrniihgsd svesanreialwfkpeelltevkpnpnlye
>1b99F (F:) mstnkvnkertflavkpdgvarglvgeiiaryekkgfvlvglkqlvptkdlaeshyaehk erpffgglvsfitsgpvvamvfegkgvvasarlmigvtnplasapgsirgdfgvdvgrni ihgsdsvesanreialwfkpeelltevkpnpnlye
>1b99F (F:) vnkertflavkpdgvarglvgeiiaryekkgfvlvglkqlvptkdlaeshyaehkerpff gglvsfitsgpvvamvfegkgvvasarlmigvtnplasapgsirgdfgvdvgrniihgsd svesanreialwfkpeelltevkpnpnlye