Chains and heterogens:
PDB Chain Sequences:
>1v4eA (A:) mtknklnqnsyelekvkerieqilsqffpeqimkdlplygkmlrvrlsilsfknrgveig edaisslaalelvhlasllhddvidgarfrrgketinfmygdkaavaagdlvlvsafhtv eeignnklrraflnvigkmseaelieqlsrykpitkeeylrivegksgalfglalqlpal legelgedlynlgvtigtiyqmfddimdfagmekigkdgfldlkngvasfplvtamekfp earqmfenrdwsglmsfmrekgilkeceetlkvlvknviienswlrdfvdgifkikiss
>1v4eA (A:) nsyelekvkerieqilsqffpeqimkdlplygkmlrvrlsilsfknrgveigedaissla alelvhlasllhddvidgarfrrgketinfmygdkaavaagdlvlvsafhtveeignnkl rraflnvigkmseaelieqlsrykpitkeeylrivegksgalfglalqlpallegelged lynlgvtigtiyqmfddimdfagmekigkdgfldlkngvasfplvtamekfpearqmfen rdwsglmsfmrekgilkeceetlkvlvknviienswlrdf
>1v4eB (B:) mtknklnqnsyelekvkerieqilsqffpeqimkdlplygkmlrvrlsilsfknrgveig edaisslaalelvhlasllhddvidgarfrrgketinfmygdkaavaagdlvlvsafhtv eeignnklrraflnvigkmseaelieqlsrykpitkeeylrivegksgalfglalqlpal legelgedlynlgvtigtiyqmfddimdfagmekigkdgfldlkngvasfplvtamekfp earqmfenrdwsglmsfmrekgilkeceetlkvlvknviienswlrdfvdgifkikiss
>1v4eB (B:) nsyelekvkerieqilsqffpeqimkdlplygkmlrvrlsilsfknrgveigedaissla alelvhlasllhddvidgarfrrgketinfmygdkaavaagdlvlvsafhtveeignnkl rraflnvigkmseaelieqlsrykpitkeeylrivegksgalfglalqlpallegelged lynlgvtigtiyqmfddimdfagmekigkdgfldlkngvasfplvtamekfpearqmfen rdwsglmsfmrekgilkeceetlkvlvknviienswlrdf