Chains and heterogens:
PDB Chain Sequences:
>1v4jA (A:) mtknklnqnsyelekvkerieqilsqffpeqimkdlplygkmlrvrlsilsfknrgveig edaisslaalelyhlasllhddvidgarfrrgketinfmygdkaavaagdlvlvsafhtv eeignnklrraflnvigkmseaelieqlsrykpitkeeylrivegksgalfglalqlpal legelgedlynlgvtigtiyqmfddimdfagmekigkdgfldlkngvasfplvtamekfp earqmfenrdwsglmsfmrekgilkeceetlkvlvknviienswlrdfvdgifkikiss
>1v4jA (A:) nsyelekvkerieqilsqffpeqimkdlplygkmlrvrlsilsfknrgveigedaissla alelyhlasllhddvidgarfrrgketinfmygdkaavaagdlvlvsafhtveeignnkl rraflnvigkmseaelieqlsrykpitkeeylrivegksgalfglalqlpallegelged lynlgvtigtiyqmfddimdfagmekigkdgfldlkngvasfplvtamekfpearqmfen rdwsglmsfmrekgilkeceetlkvlvknviienswlrdf
>1v4jB (B:) mtknklnqnsyelekvkerieqilsqffpeqimkdlplygkmlrvrlsilsfknrgveig edaisslaalelyhlasllhddvidgarfrrgketinfmygdkaavaagdlvlvsafhtv eeignnklrraflnvigkmseaelieqlsrykpitkeeylrivegksgalfglalqlpal legelgedlynlgvtigtiyqmfddimdfagmekigkdgfldlkngvasfplvtamekfp earqmfenrdwsglmsfmrekgilkeceetlkvlvknviienswlrdfvdgifkikiss
>1v4jB (B:) nsyelekvkerieqilsqffpeqimkdlplygkmlrvrlsilsfknrgveigedaissla alelyhlasllhddvidgarfrrgketinfmygdkaavaagdlvlvsafhtveeignnkl rraflnvigkmseaelieqlsrykpitkeeylrivegksgalfglalqlpallegelged lynlgvtigtiyqmfddimdfagmekigkdgfldlkngvasfplvtamekfpearqmfen rdwsglmsfmrekgilkeceetlkvlvknviienswlrdf