Chains and heterogens:
PDB Chain Sequences:
>2ihr1 (1:) mdlerlaqrleglggifdipqketrlkelerrledpslwndpeaarkvsqeaarlrrtvd tfrslesdlqgllelmeelpaeerealkpeleeaakkldelyhqtllnfphaeknailti qpgaggteacdwaemllrmytrfaerqgfqvevvdltpgpeagidyaqilvkgenaygll speagvhrlvrpspfdasgrrhtsfagvevipevdeevevvlkpeelridvmrasgpggq gvnttdsavrvvhlptgitvtcqttrsqiknkelalkilkarlyelerkkreeelkalrg evrpiewgsqirsyvldknyvkdhrtglmrhdpenvldgdlmdliwaglewkagrrqgte eveae
>2ihr1 (1:) laqrleglggifdipqketrlkelerrledpslwndpeaarkvsqeaarlrrtvdtfrsl esdlqgllelmeelpaeerealkpeleeaakkldelyhqtllnfphaeknailtiqpgag gteacdwaemllrmytrfaerqgfqvevvdltpgpeagidyaqilvkgenaygllspeag vhrlvrpspfdasgrrhtsfagvevipevdeevevvlkpeelridvmrasgpggqgvntt dsavrvvhlptgitvtcqttrsqiknkelalkilkarlyelerkkreeelkalrgevrpi ewgsqirsyvldknyvkdhrtglmrhdpenvldgdlmdliwaglewkagrr