Chains and heterogens:
PDB Chain Sequences:
>1cerO (O:) mkvgingfgrigrqvfrilhsrgvevalindltdnktlahllkydsiyhrfpgevayddq ylyvdgkairatavkdpkeipwaeagvgvviestgvftdadkakahleggakkviitapa kgeditivmgvnheaydpsrhhiisnascttnslapvmkvleeafgvekalmttvhsytn dqrlldlphkdlrraraaainiiptttgaakatalvlpslkgrfdgmalrvptatgsisd itallkrevtaeevnaalkaaaegplkgilaytedeivlqdivmdphssivdakltkalg nmvkvfawydnewgyanrvadlvelvlrkgv
>1cerP (P:) mkvgingfgrigrqvfrilhsrgvevalindltdnktlahllkydsiyhrfpgevayddq ylyvdgkairatavkdpkeipwaeagvgvviestgvftdadkakahleggakkviitapa kgeditivmgvnheaydpsrhhiisnascttnslapvmkvleeafgvekalmttvhsytn dqrlldlphkdlrraraaainiiptttgaakatalvlpslkgrfdgmalrvptatgsisd itallkrevtaeevnaalkaaaegplkgilaytedeivlqdivmdphssivdakltkalg nmvkvfawydnewgyanrvadlvelvlrkgv
>1cerQ (Q:) mkvgingfgrigrqvfrilhsrgvevalindltdnktlahllkydsiyhrfpgevayddq ylyvdgkairatavkdpkeipwaeagvgvviestgvftdadkakahleggakkviitapa kgeditivmgvnheaydpsrhhiisnascttnslapvmkvleeafgvekalmttvhsytn dqrlldlphkdlrraraaainiiptttgaakatalvlpslkgrfdgmalrvptatgsisd itallkrevtaeevnaalkaaaegplkgilaytedeivlqdivmdphssivdakltkalg nmvkvfawydnewgyanrvadlvelvlrkgv
>1cerR (R:) mkvgingfgrigrqvfrilhsrgvevalindltdnktlahllkydsiyhrfpgevayddq ylyvdgkairatavkdpkeipwaeagvgvviestgvftdadkakahleggakkviitapa kgeditivmgvnheaydpsrhhiisnascttnslapvmkvleeafgvekalmttvhsytn dqrlldlphkdlrraraaainiiptttgaakatalvlpslkgrfdgmalrvptatgsisd itallkrevtaeevnaalkaaaegplkgilaytedeivlqdivmdphssivdakltkalg nmvkvfawydnewgyanrvadlvelvlrkgv