Chains and heterogens:
PDB Chain Sequences:
>4iwhA (A:) mahhhhhhmkiavlpgdgigpeivneavkvlnaldekfelehapvggagyeasghplpda tlalakeadailfgavgdwkydsleralrpeqailglrkhlelfanfrpaicypqlvdas plkpelvagldilivrelngdiyfgqprgvraapdgpfageregfdtmrysepevrriah vafqaaqkrakkllsvdksnvletsqfwrdvmidvskeyadvelshmyvdnaamqlakap kqfdvivtgnmfgdilsdeasmltgsigmlpsasldknnkglyepshgsapdiagkgian platilsaamllryslnraeqadrieravktvleqgyrtgdiatpgcrqvgtaamgdavv aal
>4iwhA (A:) hhhmkiavlpgdgigpeivneavkvlnaldekfelehapvggagyeasghplpdatlala keadailfgavgdwkydsleralrpeqailglrkhlelfanfrpaicypqlvdasplkpe lvagldilivrelngdiyfgqprgvraapdgpfageregfdtmrysepevrriahvafqa aqkrakkllsvdksnvletsqfwrdvmidvskeyadvelshmyvdnaamqlakapkqfdv ivtgnmfgdilsdeasmltgsigmlpsasldknnkglyepshgsapdiagkgianplati lsaamllryslnraeqadrieravktvleqgyrtgdiatpgcrqvgtaamgdavvaal
>4iwhB (B:) mahhhhhhmkiavlpgdgigpeivneavkvlnaldekfelehapvggagyeasghplpda tlalakeadailfgavgdwkydsleralrpeqailglrkhlelfanfrpaicypqlvdas plkpelvagldilivrelngdiyfgqprgvraapdgpfageregfdtmrysepevrriah vafqaaqkrakkllsvdksnvletsqfwrdvmidvskeyadvelshmyvdnaamqlakap kqfdvivtgnmfgdilsdeasmltgsigmlpsasldknnkglyepshgsapdiagkgian platilsaamllryslnraeqadrieravktvleqgyrtgdiatpgcrqvgtaamgdavv aal
>4iwhB (B:) mkiavlpgdgigpeivneavkvlnaldekfelehapvggagyeasghplpdatlalakea dailfgavgdwkydsleralrpeqailglrkhlelfanfrpaicypqlvdasplkpelva gldilivrelngdiyfgqprgvraapdgpfageregfdtmrysepevrriahvafqaaqk rakkllsvdksnvletsqfwrdvmidvskeyadvelshmyvdnaamqlakapkqfdvivt gnmfgdilsdeasmltgsigmlpsasldknnkglyepshgsapdiagkgianplatilsa amllryslnraeqadrieravktvleqgyrtgdiatpgcrqvgtaamgdavvaal