Chains and heterogens:
PDB Chain Sequences:
>4iqpA (A:) kniintsilnlryesnhlidlsryaskinigskvnfdpidknqiqlfnlesskievilkn aivynsmyenfstsfwiripkyfnsislnneytiincmennsgwkvslnygeiiwtlqdt qeikqrvvfkysqminisdyinrwifvtitnnrlnnskiyingrlidqkpisnlgnihas nnimfkldgcrdthryiwikyfnlfdkelnekeikdlydnqsnsgilkdfwgdylqydkp yymlnlydpnkyvdvnnvgirgymylkgprgsvmttniylnsslyrgtkfiikkyasgnk dnivrnndrvyinvvvknkeyrlatnasqagvekilsaleipdvgnlsqvvvmkskndqg itnkckmnlqdnngndigfigfhqfnniaklvasnaynrqierssrtlgcswefipvddg wgerpl
>4iqpA (A:) tsilnlryesnhlidlsryaskinigskvnfdpidknqiqlfnlesskievilknaivyn smyenfstsfwiripkyfnsislnneytiincmennsgwkvslnygeiiwtlqdtqeikq rvvfkysqminisdyinrwifvtitnnrlnnskiyingrlidqkpisnlgnihasnnimf kldgcrdthryiwikyfnlfdkelnekeikdlydnqsnsgilkdfwgdylqydkpyymln lydpnkyvdvnnvgirgymylkgprgsvmttniylnsslyrgtkfiikkyasgnkdnivr nndrvyinvvvknkeyrlatnasqagvekilsaleipdvgnlsqvvvmksknqgitnkck mnlqdnngndigfigfhqfnniaklvasnaynrqirssrtlgcswefipvddgwgerpl