Chains and heterogens:
PDB Chain Sequences:
>1iw0A (A:) mttataglavelkqstaqahekaehstfmsdllkgrlgvaeftrlqeqawlfytaleqav davrasgfaeslldpalnraevlardldklngssewrsritaspavidyvnrleeirdnv dgpalvahhyvrylgdlsggqviarmmqrhygvdpealgfyhfegiaklkvykdeyrekl nnlelsdeqrehllkeatdafvfnhqvfadlgkgl
>1iw0A (A:) glavelkqstaqahekaehstfmsdllkgrlgvaeftrlqeqawlfytaleqavdavras gfaeslldpalnraevlardldklngssewrsritaspavidyvnrleeirdnvdgpalv ahhyvrylgdlsggqviarmmqrhygvdpealgfyhfegiaklkvykdeyreklnnlels deqrehllkeatdafvfnhqvfadlgk
>1iw0B (B:) mttataglavelkqstaqahekaehstfmsdllkgrlgvaeftrlqeqawlfytaleqav davrasgfaeslldpalnraevlardldklngssewrsritaspavidyvnrleeirdnv dgpalvahhyvrylgdlsggqviarmmqrhygvdpealgfyhfegiaklkvykdeyrekl nnlelsdeqrehllkeatdafvfnhqvfadlgkgl
>1iw0B (B:) glavelkqstaqahekaehstfmsdllkgrlgvaeftrlqeqawlfytaleqavdavras gfaeslldpalnraevlardldklngssewrsritaspavidyvnrleeirdnvdgpalv ahhyvrylgdlsggqviarmmqrhygvdpealgfyhfegiaklkvykdeyreklnnlels deqrehllkeatdafvfnhqvfadlgkgl
>1iw0C (C:) mttataglavelkqstaqahekaehstfmsdllkgrlgvaeftrlqeqawlfytaleqav davrasgfaeslldpalnraevlardldklngssewrsritaspavidyvnrleeirdnv dgpalvahhyvrylgdlsggqviarmmqrhygvdpealgfyhfegiaklkvykdeyrekl nnlelsdeqrehllkeatdafvfnhqvfadlgkgl
>1iw0C (C:) glavelkqstaqahekaehstfmsdllkgrlgvaeftrlqeqawlfytaleqavdavras gfaeslldpalnraevlardldklngssewrsritaspavidyvnrleeirdnvdgpalv ahhyvrylgdlsggqviarmmqrhygvdpealgfyhfegiaklkvykdeyreklnnlels deqrehllkeatdafvfnhqvfadlgk