Chains and heterogens:
PDB Chain Sequences:
>4f21A (A:) mhhhhhhssgvdlgtenlyfqsnamnyelmepakqarfcviwlhglgadghdfvdivnyf dvsldeirfifphadiipvtinmgmqmrawydiksldanslnrvvdveginssiakvnkl idsqvnqgiaseniilagfsqggiiatytaitsqrklggimalstylpawdnfkgkitsi nkglpilvchgtddqvlpevlghdlsdklkvsgfaneykhyvgmqhsvcmeeikdisnfi aktfki
>4f21A (A:) namnyelmepakqarfcviwlhgadghdfvdivnyfdvsldeirfifphadiipvtinmg mqmrawydikslslnrvvdveinssiakvnklidsqvnqiaseniilagfsqggiiatyt aitsqrklggimalstylpawdnfkgkitsinkglpilvchgtddqvlpevlghdlsdkl kvsgfaneykhyvgmqhsvcmeeikdisnfiaktfki
>4f21B (B:) mhhhhhhssgvdlgtenlyfqsnamnyelmepakqarfcviwlhglgadghdfvdivnyf dvsldeirfifphadiipvtinmgmqmrawydiksldanslnrvvdveginssiakvnkl idsqvnqgiaseniilagfsqggiiatytaitsqrklggimalstylpawdnfkgkitsi nkglpilvchgtddqvlpevlghdlsdklkvsgfaneykhyvgmqhsvcmeeikdisnfi aktfki
>4f21B (B:) namnyelmepakqarfcviwlhgadghdfvdivnyfdvsldeirfifphadiipvtinmg mqmrawydiksldslnrvvdveginssiakvnklidsqvnqgiaseniilagfsqggiia tytaitsqrklggimalstylpawdnfkgkitsinkglpilvchgtddqvlpevlghdls dklkvsgfaneykhyvgmqhsvcmeeikdisnfiaktfki
>4f21C (C:) mhhhhhhssgvdlgtenlyfqsnamnyelmepakqarfcviwlhglgadghdfvdivnyf dvsldeirfifphadiipvtinmgmqmrawydiksldanslnrvvdveginssiakvnkl idsqvnqgiaseniilagfsqggiiatytaitsqrklggimalstylpawdnfkgkitsi nkglpilvchgtddqvlpevlghdlsdklkvsgfaneykhyvgmqhsvcmeeikdisnfi aktfki
>4f21C (C:) namnyelmepakqarfcviwlhgadghdfvdivnyfdvsldeirfifphadiipvtinmg mqmrawydiksldslnrvvdveginssiakvnklidsqvnqgiaseniilagfsqggiia tytaitsqrklggimalstylpawdnfkgkitsinkglpilvchgtddqvlpevlghdls dklkvsgfaneykhyvgmqhsvcmeeikdisnfiaktfki
>4f21D (D:) mhhhhhhssgvdlgtenlyfqsnamnyelmepakqarfcviwlhglgadghdfvdivnyf dvsldeirfifphadiipvtinmgmqmrawydiksldanslnrvvdveginssiakvnkl idsqvnqgiaseniilagfsqggiiatytaitsqrklggimalstylpawdnfkgkitsi nkglpilvchgtddqvlpevlghdlsdklkvsgfaneykhyvgmqhsvcmeeikdisnfi aktfki
>4f21D (D:) namnyelmepakqarfcviwlhgadghdfvdivnyfdvsldeirfifphadiipvtinmg mqmrawydiksldslnrvvdveginssiakvnklidsqvnqgiaseniilagfsqggiia tytaitsqrklggimalstylpawdnfkgkitsinkglpilvchgtddqvlpevlghdls dklkvsgfaneykhyvgmqhsvcmeeikdisnfiaktfki
>4f21E (E:) mhhhhhhssgvdlgtenlyfqsnamnyelmepakqarfcviwlhglgadghdfvdivnyf dvsldeirfifphadiipvtinmgmqmrawydiksldanslnrvvdveginssiakvnkl idsqvnqgiaseniilagfsqggiiatytaitsqrklggimalstylpawdnfkgkitsi nkglpilvchgtddqvlpevlghdlsdklkvsgfaneykhyvgmqhsvcmeeikdisnfi aktfki
>4f21E (E:) snamnyelmepakqarfcviwlhglghdfvdivnyfdvsldeirfifphadigmqmrawy diksvdveginssiakvnklidsqvnqgiaseniilagfsqggiiatytaitsqrklggi malstylpawdnfkgkitsinkglpilvchgtddqvlpevlghdlsdklkvsgfaneykh yvgmqhsvcmeeikdisnfiaktfki
>4f21F (F:) mhhhhhhssgvdlgtenlyfqsnamnyelmepakqarfcviwlhglgadghdfvdivnyf dvsldeirfifphadiipvtinmgmqmrawydiksldanslnrvvdveginssiakvnkl idsqvnqgiaseniilagfsqggiiatytaitsqrklggimalstylpawdnfkgkitsi nkglpilvchgtddqvlpevlghdlsdklkvsgfaneykhyvgmqhsvcmeeikdisnfi aktfki
>4f21F (F:) snamnyelmepakqarfcviwlhglghdfvdivnyfdvsldeirfifphadimgmqmraw ydiksveginssiakvnklidsqvnqgiaseniilagfsqggiiatytaitsqrklggim alstylpawdnfkgkitsinkglpilvchgtddqvlpevlghdlsdklkvsgfaneykhy vgmqhsvcmeeikdisnfiaktfki
>4f21G (G:) mhhhhhhssgvdlgtenlyfqsnamnyelmepakqarfcviwlhglgadghdfvdivnyf dvsldeirfifphadiipvtinmgmqmrawydiksldanslnrvvdveginssiakvnkl idsqvnqgiaseniilagfsqggiiatytaitsqrklggimalstylpawdnfkgkitsi nkglpilvchgtddqvlpevlghdlsdklkvsgfaneykhyvgmqhsvcmeeikdisnfi aktfki
>4f21G (G:) snamnyelmepakqarfcviwlhhdfvdivnyfdvsldeirfifphaipvtigmqmrawy dikvvdveginssikvnklidsqvnqgiaseniilagfsqggiiatytaitsqrklggim alstylpawdnkgkitsinkglpilvchgtddqvlpevlghdlsdklkvsgfaneykhyv gmqhsvcmeeikdisnfiaktfki
>4f21H (H:) mhhhhhhssgvdlgtenlyfqsnamnyelmepakqarfcviwlhglgadghdfvdivnyf dvsldeirfifphadiipvtinmgmqmrawydiksldanslnrvvdveginssiakvnkl idsqvnqgiaseniilagfsqggiiatytaitsqrklggimalstylpawdnfkgkitsi nkglpilvchgtddqvlpevlghdlsdklkvsgfaneykhyvgmqhsvcmeeikdisnfi aktfki
>4f21H (H:) snamnyelmepakqarfcviwlhghdfvdivnyfdvsldeirfifphaipvtimrawydi kvvdveginssiakvnklidsqvnqgiaseniilagfsqggiiatytaitsqrklggima lstylpawdnfkgkitsinkglpilvchgtddqvlpevlghdlsdklkvsgfaneykhyv gmqhsvcmeeikdisnfiaktfki