Chains and heterogens:
PDB Chain Sequences:
>1pw4A (A:) gsifkpaphkarlpaaeidptyrrlrwqiflgiffgyaayylvrknfalampylveqgfs rgdlgfalsgisiaygfskfimgsvsdrsnprvflpaglilaaavmlfmgfvpwatssia vmfvllflcgwfqgmgwppcgrtmvhwwsqkerggivsvwncahnvgggippllfllgma wfndwhaalympafcailvalfafammrdtpqscglppieeykndypddynekaeqelta kqifmqyvlpnkllwyiaianvfvyllrygildwsptylkevkhfaldksswayflyeya gipgtllcgwmsdkvfrgnrgatgvffmtlvtiativywmnpagnptvdmicmivigfli ygpvmliglhalelapkkaagtaagftglfgylggsvaasaivgytvdffgwdggfmvmi ggsilavillivvmigekrrheqllqelvpr
>1pw4A (A:) fkpaphkarlpaaeidptyrrlrwqiflgiffgyaayylvrknfalampylveqgfsrgd lgfalsgisiaygfskfimgsvsdrsnprvflpaglilaaavmlfmgfvpwatssiavmf vllflcgwfqgmgwppcgrtmvhwwsqkerggivsvwncahnvgggippllfllgmawfn dwhaalympafcailvalfafammrdtpqscglppieeykndtakqifmqyvlpnkllwy iaianvfvyllrygildwsptylkevkhfaldksswayflyeyagipgtllcgwmsdkvf rgnrgatgvffmtlvtiativywmnpagnptvdmicmivigfliygpvmliglhalelap kkaagtaagftglfgylggsvaasaivgytvdffgwdggfmvmiggsilavillivvmig ekrrheqllqelvp