Chains and heterogens:
PDB Chain Sequences:
>4uwtA (A:) esactlqsethppltwqkcssggtctqqtgsvvidanwrwthatnsstncydgntwsstl cpdnetcaknccldgaayastygvttsgnslsidfvtqsaqknvgarlylmasdttyqef tllgnefsfdvdvsqlpcglngalyfvsmdadggvskyptntagakygtgycdsqcprdl kfingqanvegwepssnnantgigghgsccsqmdiweansisealtphpcttvgqeiceg dgcggtysdnryggtcdpdgcdwnpyrlgntsfygpgssftldttkkltvvtqfetsgai nryyvqngvtfqqpnaelgsysgnelnddyctaeeaefggssfsdkggltqfkkatsggm vlvmslwddyyanmlwldstyptnetsstpgavrgscstssgvpaqvesqspnakvtfsn ikfgpigstgnpsg