Chains and heterogens:
PDB Chain Sequences:
>1b4nA (A:) mygwwgrilrvnlttgevkvqeypeevakkfiggrglaawilwneargveplspenklif aagpfnglptpsggklvvaakspltggygdgnlgtmasvhlrragydalvvegkakkpvy iyieddnvsilsaeglwgkttfeterelkeihgknvgvltigpagenlvkyavvisqegr aagrpgmgavmgskklkavvirgtkeipvadkeelkklsqeayneilnspgypfwkrqgt maavewcntnyalptrnfsdgyfefarsidgytmegmkvqqrgcpycnmpcgnvvldaeg qeseldyenvallgsnlgigklnevsvlnriademgmdtislgvsiahvmeavergilke gptfgdfkgakqlaldiayrkgelgnlaaegvkamaeklgthdfamhvkglevsgyncyi ypamalaygtsaigahhkeawviaweigtapiegekaekveykisydpikaqkvvelqrl rgglfemltacrlpwvevglsldyypkllkaitgvtytwddlykaadrvysliraywvre fngkwdrkmdyppkrwfteglksgphkgehldekkydellseyyrirgwdergipkketl keldldfvipelekvtnle
>1b4nA (A:) mygwwgrilrvnlttgevkvqeypeevakkfiggrglaawilwneargveplspenklif aagpfnglptpsggklvvaakspltggygdgnlgtmasvhlrragydalvvegkakkpvy iyieddnvsilsaeglwgkttfeterelkeihgknvgvltigpagenlvkyavvisqegr aagrpgmgavmgskklkavvirgtkeipvadkeelkklsqeayneilnspgypfwkrqgt maavewcntnyalptrnfsdgyfefarsidgytmegmkvqqrgcpycnmpcgnvvldaeg qeseldyenvallgsnlgigklnevsvlnriademgmdtislgvsiahvmeavergilke gptfgdfkgakqlaldiayrkgelgnlaaegvkamaeklgthdfamhvkglevsgyncyi ypamalaygtsaigahhkeawviaweigtapieykisydpikaqkvvelqrlrgglfeml tacrlpwvevglsldyypkllkaitgvtytwddlykaadrvysliraywvrefngkwdrk mdyppkrwfteglksgphkgehldekkydellseyyrirgwdergipkketlkeldldfv ipelekvtnle
>1b4nB (B:) mygwwgrilrvnlttgevkvqeypeevakkfiggrglaawilwneargveplspenklif aagpfnglptpsggklvvaakspltggygdgnlgtmasvhlrragydalvvegkakkpvy iyieddnvsilsaeglwgkttfeterelkeihgknvgvltigpagenlvkyavvisqegr aagrpgmgavmgskklkavvirgtkeipvadkeelkklsqeayneilnspgypfwkrqgt maavewcntnyalptrnfsdgyfefarsidgytmegmkvqqrgcpycnmpcgnvvldaeg qeseldyenvallgsnlgigklnevsvlnriademgmdtislgvsiahvmeavergilke gptfgdfkgakqlaldiayrkgelgnlaaegvkamaeklgthdfamhvkglevsgyncyi ypamalaygtsaigahhkeawviaweigtapiegekaekveykisydpikaqkvvelqrl rgglfemltacrlpwvevglsldyypkllkaitgvtytwddlykaadrvysliraywvre fngkwdrkmdyppkrwfteglksgphkgehldekkydellseyyrirgwdergipkketl keldldfvipelekvtnle
>1b4nB (B:) mygwwgrilrvnlttgevkvqeypeevakkfiggrglaawilwneargveplspenklif aagpfnglptpsggklvvaakspltggygdgnlgtmasvhlrragydalvvegkakkpvy iyieddnvsilsaeglwgkttfeterelkeihgknvgvltigpagenlvkyavvisqegr aagrpgmgavmgskklkavvirgtkeipvadkeelkklsqeayneilnspgypfwkrqgt maavewcntnyalptrnfsdgyfefarsidgytmegmkvqqrgcpycnmpcgnvvldaeg qeseldyenvallgsnlgigklnevsvlnriademgmdtislgvsiahvmeavergilke gptfgdfkgakqlaldiayrkgelgnlaaegvkamaeklgthdfamhvkglevsgyncyi ypamalaygtsaigahhkeawviaweigtapieykisydpikaqkvvelqrlrgglfeml tacrlpwvevglsldyypkllkaitgvtytwddlykaadrvysliraywvrefngkwdrk mdyppkrwfteglksgphkgehldekkydellseyyrirgwdergipkketlkeldldfv ipelekvtnle
>1b4nC (C:) mygwwgrilrvnlttgevkvqeypeevakkfiggrglaawilwneargveplspenklif aagpfnglptpsggklvvaakspltggygdgnlgtmasvhlrragydalvvegkakkpvy iyieddnvsilsaeglwgkttfeterelkeihgknvgvltigpagenlvkyavvisqegr aagrpgmgavmgskklkavvirgtkeipvadkeelkklsqeayneilnspgypfwkrqgt maavewcntnyalptrnfsdgyfefarsidgytmegmkvqqrgcpycnmpcgnvvldaeg qeseldyenvallgsnlgigklnevsvlnriademgmdtislgvsiahvmeavergilke gptfgdfkgakqlaldiayrkgelgnlaaegvkamaeklgthdfamhvkglevsgyncyi ypamalaygtsaigahhkeawviaweigtapiegekaekveykisydpikaqkvvelqrl rgglfemltacrlpwvevglsldyypkllkaitgvtytwddlykaadrvysliraywvre fngkwdrkmdyppkrwfteglksgphkgehldekkydellseyyrirgwdergipkketl keldldfvipelekvtnle
>1b4nC (C:) mygwwgrilrvnlttgevkvqeypeevakkfiggrglaawilwneargveplspenklif aagpfnglptpsggklvvaakspltggygdgnlgtmasvhlrragydalvvegkakkpvy iyieddnvsilsaeglwgkttfeterelkeihgknvgvltigpagenlvkyavvisqegr aagrpgmgavmgskklkavvirgtkeipvadkeelkklsqeayneilnspgypfwkrqgt maavewcntnyalptrnfsdgyfefarsidgytmegmkvqqrgcpycnmpcgnvvldaeg qeseldyenvallgsnlgigklnevsvlnriademgmdtislgvsiahvmeavergilke gptfgdfkgakqlaldiayrkgelgnlaaegvkamaeklgthdfamhvkglevsgyncyi ypamalaygtsaigahhkeawviaweigtapieykisydpikaqkvvelqrlrgglfeml tacrlpwvevglsldyypkllkaitgvtytwddlykaadrvysliraywvrefngkwdrk mdyppkrwfteglksgphkgehldekkydellseyyrirgwdergipkketlkeldldfv ipelekvtnle
>1b4nD (D:) mygwwgrilrvnlttgevkvqeypeevakkfiggrglaawilwneargveplspenklif aagpfnglptpsggklvvaakspltggygdgnlgtmasvhlrragydalvvegkakkpvy iyieddnvsilsaeglwgkttfeterelkeihgknvgvltigpagenlvkyavvisqegr aagrpgmgavmgskklkavvirgtkeipvadkeelkklsqeayneilnspgypfwkrqgt maavewcntnyalptrnfsdgyfefarsidgytmegmkvqqrgcpycnmpcgnvvldaeg qeseldyenvallgsnlgigklnevsvlnriademgmdtislgvsiahvmeavergilke gptfgdfkgakqlaldiayrkgelgnlaaegvkamaeklgthdfamhvkglevsgyncyi ypamalaygtsaigahhkeawviaweigtapiegekaekveykisydpikaqkvvelqrl rgglfemltacrlpwvevglsldyypkllkaitgvtytwddlykaadrvysliraywvre fngkwdrkmdyppkrwfteglksgphkgehldekkydellseyyrirgwdergipkketl keldldfvipelekvtnle
>1b4nD (D:) mygwwgrilrvnlttgevkvqeypeevakkfiggrglaawilwneargveplspenklif aagpfnglptpsggklvvaakspltggygdgnlgtmasvhlrragydalvvegkakkpvy iyieddnvsilsaeglwgkttfeterelkeihgknvgvltigpagenlvkyavvisqegr aagrpgmgavmgskklkavvirgtkeipvadkeelkklsqeayneilnspgypfwkrqgt maavewcntnyalptrnfsdgyfefarsidgytmegmkvqqrgcpycnmpcgnvvldaeg qeseldyenvallgsnlgigklnevsvlnriademgmdtislgvsiahvmeavergilke gptfgdfkgakqlaldiayrkgelgnlaaegvkamaeklgthdfamhvkglevsgyncyi ypamalaygtsaigahhkeawviaweigtapieykisydpikaqkvvelqrlrgglfeml tacrlpwvevglsldyypkllkaitgvtytwddlykaadrvysliraywvrefngkwdrk mdyppkrwfteglksgphkgehldekkydellseyyrirgwdergipkketlkeldldfv ipelekvtnle