Chains and heterogens:
PDB Chain Sequences:
>4ragA (A:) gafldkpkmekhnaqgqgnglryglssmqgwrvemekahtaviglpsgleswsffavydg hagsqvakyccehlldhitnnqdfkgsagapsvenvkngirtgfleidehmrvmsekkhg adrsgstavgvlispqhtyfincgdsrgllcrnrkvhfftqdhkpsnplekeriqnaggs vmiqrvngslavsralgdfdykcvhgkgpteqlvspepevhdierseeddqfiilacdgi wdvmgneelcdfvrsrlevtddlekvcnevvdtclykgsrdnmsvilicfpnapkvspea vkkeaeldkylecrveeiikkqgegvpdlvhvmrtlasenipslppggelaskrnvieav ynrlnpy
>4ragA (A:) gafldkpkmekhnaqgqgnglryglssmqgwrvemekahtaviglpsgleswsffavydg hagsqvakyccehlldhitnnqdfkgsagapsvenvkngirtgfleidehmrvmsekkhg adrsgstavgvlispqhtyfincgdsrgllcrnrkvhfftqdhkpsnplekeriqnaggs vmiqrvngslavsralgdfdykcvhgkgpteqlvspepevhdierseeddqfiilacdgi wdvmgneelcdfvrsrlevtddlekvcnevvdtclykgsrdnmsvilicfpnapkvspea vkkeaeldkylecrveeiikvpdlvhvmrtlasenipslppggelaskrnvieavynrln py