Chains and heterogens:
PDB Chain Sequences:
>4p1hA (A:) esactlqsethppltwqkcssggtctqqtgsvvidanwrwthatnsstncydgntwsstl cpdnetcaknccldgaayastygvttsgnslsigfvtqsaqknvgarlylmasdttyqef tllgnefsfdvdvsqlpcglngalyfvsmdadggvskyptntagakygtgycdsqcprdl kfingqanvegwepssnnantgigghgsccsemdiweansisealtphpcttvgqeiceg dgcggtysdnryggtcdpdgcdwnpyrlgntsfygpgssftldttkkltvvtqfetsgai nryyvqngvtfqqpnaelgsysgnelnddyctaeeaefggssfsdkggltqfkkatsggm vlvmslwddyyanmlwldstyptnetsstpgavrgscstssgvpaqvesqspnakvtfsn ikfgpigstgnp