Chains and heterogens:
PDB Chain Sequences:
>1s2uA (A:) mstkvkkttqlkqmlnskdlefimeahnglsarivqeagfkgiwgsglsvsaqlgvrasn easwtqvvevlefmsdasdvpilldadtgygnfnnarrlvrkledrgvagacledklfpk tnslhdgraqpladieefalkikackdsqtdpdfcivarveafiagwgldealkraeayr nagadailmhskkadpsdieafmkawnnqgpvvivptkyyktptdhfrdmgvsmviwanh nlrasvsaiqqttkqiyddqslvnvedkivsvkeifrlqrddelvqaedkylpkn
>1s2uA (A:) vkkttqlkqmlnskdlefimeahnglsarivqeagfkgiwgsglsvsaqlgvrasneasw tqvvevlefmsdasdvpilldadtgygnfnnarrlvrkledrgvagacledklfpktnsl hdgraqpladieefalkikackdsqtdpdfcivarveafiagwgldealkraeayrnaga dailmhskkadpsdieafmkawnnqgpvvivptkyyktptdhfrdmgvsmviwanhnlra svsaiqqttkqiyddqslvnvedkivsvkeifrlqrddelvqaedkylpk
>1s2uB (B:) mstkvkkttqlkqmlnskdlefimeahnglsarivqeagfkgiwgsglsvsaqlgvrasn easwtqvvevlefmsdasdvpilldadtgygnfnnarrlvrkledrgvagacledklfpk tnslhdgraqpladieefalkikackdsqtdpdfcivarveafiagwgldealkraeayr nagadailmhskkadpsdieafmkawnnqgpvvivptkyyktptdhfrdmgvsmviwanh nlrasvsaiqqttkqiyddqslvnvedkivsvkeifrlqrddelvqaedkylpkn
>1s2uB (B:) vkkttqlkqmlnskdlefimeahnglsarivqeagfkgiwgsglsvsaqlgvrasneasw tqvvevlefmsdasdvpilldadtgygnfnnarrlvrkledrgvagacledklfpktnsl hdgraqpladieefalkikackdsqtdpdfcivarveafiagwgldealkraeayrnaga dailmhskkadpsdieafmkawnnqgpvvivptkyyktptdhfrdmgvsmviwanhnlra svsaiqqttkqiyddqslvnvedkivsvkeifrlqrddelvqaedkylp