COMPND    MOL_ID: 2;
COMPND   2 MOLECULE: Cytochrome c oxidase subunit 2;
COMPND   3 CHAIN: B, O;
COMPND   4 MOL_ID: 4;
COMPND   5 Cytochrome c oxidase subunit 4 isoform 1, mitochondrial;
COMPND   6 CHAIN: D, Q;
COMPND   7 MOL_ID: 5;
COMPND   8 Cytochrome c oxidase subunit 5A, mitochondrial;
COMPND   9 CHAIN: E, R;
COMPND   10 MOL_ID: 9;
COMPND   11 Cytochrome c oxidase subunit 6C;
COMPND   12 CHAIN: I, V;
EXPDTA     X-RAY DIFFRACTION
REMARK   2 RESOLUTION.    1.68 ANGSTORMS
DBREF  5B3S B    2   227  UNP    P68530   COX2_BOVIN       2    227
DBREF  5B3S D    1   147  UNP    P00423   COX41_BOVIN     23    169
DBREF  5B3S E    1   109  UNP    P00426   COX5A_BOVIN     44    152
DBREF  5B3S I    2    73  UNP    P04038   COX6C_BOVIN      3     74
SEQRES   1 I   73  SAC THR ALA LEU ALA LYS PRO GLN MET ARG GLY LEU LEU
SEQRES   2 I   73  ALA ARG ARG LEU ARG PHE HIS ILE VAL GLY ALA PHE MET
SEQRES   3 I   73  VAL SER LEU GLY PHE ALA THR PHE TYR LYS PHE ALA VAL
SEQRES   4 I   73  ALA GLU LYS ARG LYS LYS ALA TYR ALA ASP PHE TYR ARG
SEQRES   5 I   73  ASN TYR ASP SER MET LYS ASP PHE GLU GLU MET ARG LYS
SEQRES   6 I   73  ALA GLY ILE PHE GLN SER ALA LYS