Chains and heterogens:
PDB Chain Sequences:
>1keyA (A:) msvseifvelqgflaaeqdireeirkvvqsleqtareiltllqgvhqgtgfqdipkrclk arehfstvkthltslktkfpaeqyyrfhehwrfvlqrlvflaafvvyletetlvtreavt eilgiepdrekgfhldvedylsgvlilaselsrlsvnsvtagdysrplhistfineldsg frllnlkndslrkrydglkydvkkveevvydlsirgfn
>1keyA (A:) msvseifvelqgflaaeqdireeirkvvqsleqtareiltllqgvhdipkrclkarehfs tvkthltslktkfpaeqyyrfhehwrfvlqrlvflaafvvyletetlvtreavteilgie pdrekgfhldvedylsgvlilaselsrlsvnsvtagdysrplhistfineldsgfrllnl kndslrkrydglkydvkkveevvydlsirgfn
>1keyB (B:) fatmsvseifvelqgflaaeqdireeirkvvqsleqtareiltllqgvhqgtgfqdipkr clkarehfstvkthltslktkfpaeqyyrfhehwrfvlqrlvflaafvvyletetlvtre avteilgiepdrekgfhldvedylsgvlilaselsrlsvnsvtagdysrplhistfinel dsgfrllnlkndslrkrydglkydvkkveevvydlsirgfn
>1keyC (C:) msvseifvelqgflaaeqdireeirkvvqsleqtareiltllqgvhqgtgfqdipkrclk arehfstvkthltslktkfpaeqyyrfhehwrfvlqrlvflaafvvyletetlvtreavt eilgiepdrekgfhldvedylsgvlilaselsrlsvnsvtagdysrplhistfineldsg frllnlkndslrkrydglkydvkkveevvydlsirgf
>1keyC (C:) msvseifvelqgflaaeqdireeirkvvqsleqtareiltllqgvdipkrclkarehfst vkthltslktkfpaeqyyrfhehwrfvlqrlvflaafvvyletetlvtreavteilgiep drekgfhldvedylsgvlilaselsrlsvnsvtagdysrplhistfineldsgfrllnlk ndslrkrydglkydvkkveevvydlsirgf
>1keyD (D:) msvseifvelqgflaaeqdireeirkvvqsleqtareiltllqgvhqgtgfqdipkrclk arehfstvkthltslktkfpaeqyyrfhehwrfvlqrlvflaafvvyletetlvtreavt eilgiepdrekgfhldvedylsgvlilaselsrlsvnsvtagdysrplhistfineldsg frllnlkndslrkrydglkydvkkveevvydlsirg
>1keyD (D:) msvseifvelqgflaaeqdireeirkvvqsleqtareiltllqgvhqdipkrclkarehf stvkthltslktkfpaeqyyrfhehwrfvlqrlvflaafvvyletetlvtreavteilgi epdrekgfhldvedylsgvlilaselsrlsvnsvtagdysrplhistfineldsgfrlln lkndslrkrydglkydvkkveevvydlsirg