Chains and heterogens:
PDB Chain Sequences:
>4d99A (A:) mrgshhhhhhgmasmplhhltrfprlefigaptpleylprlsdylgreiyikrddvtpia mggnklrkleflvadalregadtlitagaiqsnhvrqtaavaaklglhcvallenpigtt aenyltngnrllldlfntqiemcdaltdpdaqlqtlatrieaqgfrpyvipvggssalga mgyvesaleiaqqceevvglssvvvasgsagthaglavglehlmpdveligvtvsrsvae qkpkvialqqaiagqlaltatadihlwddyfapgygvpndagmeavkllaslegvlldpv ytgkamaglidgisqkrfnddgpilfihtggapalfayhphv
>4d99A (A:) mplhhltrfprlefigaptpleylprlsdylgreiyikrddvtpiamggnklrkleflva dalregadtlitagaiqsnhvrqtaavaaklglhcvallenpigttaenyltngnrllld lfntqiemcdaltdpdaqlqtlatrieaqgfrpyvipvggssalgamgyvesaleiaqqc eevvglssvvvasgsagthaglavglehlmpdveligvtvsrsvaeqkpkvialqqaiag qlaltatadihlwddyfapgygvpndagmeavkllaslegvlldpvytgkamaglidgis qkrfnddgpilfihtggapalfayhphv
>4d99B (B:) mrgshhhhhhgmasmplhhltrfprlefigaptpleylprlsdylgreiyikrddvtpia mggnklrkleflvadalregadtlitagaiqsnhvrqtaavaaklglhcvallenpigtt aenyltngnrllldlfntqiemcdaltdpdaqlqtlatrieaqgfrpyvipvggssalga mgyvesaleiaqqceevvglssvvvasgsagthaglavglehlmpdveligvtvsrsvae qkpkvialqqaiagqlaltatadihlwddyfapgygvpndagmeavkllaslegvlldpv ytgkamaglidgisqkrfnddgpilfihtggapalfayhphv
>4d99B (B:) hhltrfprlefigaptpleylprlsdylgreiyikrddvtpiamggnklrkleflvadal regadtlitagaiqsnhvrqtaavaaklglhcvallenpigttaenyltngnrllldlfn tqiemcdaltdpdaqlqtlatrieaqgfrpyvipvggssalgamgyvesaleiaqqceev glssvvvasgsagthaglavglehlmpdveligvtvsrsvaeqkpkvialqqaiagqlal tatadihlwddyfapgygvpndagmeavkllaslegvlldpvytgkamaglidgisqkrf nddgpilfihtggapalfayhphv
>4d99C (C:) mrgshhhhhhgmasmplhhltrfprlefigaptpleylprlsdylgreiyikrddvtpia mggnklrkleflvadalregadtlitagaiqsnhvrqtaavaaklglhcvallenpigtt aenyltngnrllldlfntqiemcdaltdpdaqlqtlatrieaqgfrpyvipvggssalga mgyvesaleiaqqceevvglssvvvasgsagthaglavglehlmpdveligvtvsrsvae qkpkvialqqaiagqlaltatadihlwddyfapgygvpndagmeavkllaslegvlldpv ytgkamaglidgisqkrfnddgpilfihtggapalfayhphv
>4d99C (C:) ltrfprlefigaptpleylprlsdylgreiyikrddvtpiamggnklrkleflvadalre gadtlitagaiqsnhvrqtaavaaklglhcvallenpigttaenyltngnrllldlfntq iemcdaltdpdaqlqtlatrieaqgfrpyvipvggssalgamgyvesaleiaqqceevvg lssvvvasgsagthaglavglehlmpdveligvtvsrsvaeqkpkvialqqaiagqlalt atadihlwddyfapgygvpndagmeavkllaslegvlldpvytgkamaglidgisqkrfn ddgpilfihtggapalfayhphv
>4d99D (D:) mrgshhhhhhgmasmplhhltrfprlefigaptpleylprlsdylgreiyikrddvtpia mggnklrkleflvadalregadtlitagaiqsnhvrqtaavaaklglhcvallenpigtt aenyltngnrllldlfntqiemcdaltdpdaqlqtlatrieaqgfrpyvipvggssalga mgyvesaleiaqqceevvglssvvvasgsagthaglavglehlmpdveligvtvsrsvae qkpkvialqqaiagqlaltatadihlwddyfapgygvpndagmeavkllaslegvlldpv ytgkamaglidgisqkrfnddgpilfihtggapalfayhphv
>4d99D (D:) mplhhltrfprlefigaptpleylprlsdylgreiyikrddvtpiamggnklrkleflva dalregadtlitagaiqsnhvrqtaavaaklglhcvallenpigttaenyltngnrllld lfntqiemcdaltdpdaqlqtlatrieaqgfrpyvipvggssalgamgyvesaleiaqqc eevvglssvvvasgsagthaglavglehlmpdveligvtvsrsvaeqkpkvialqqaiag qlaltatadihlwddyfapgygvpndagmeavkllaslegvlldpvytgkamaglidgis qkrfnddgpilfihtggapalfayhphv