HEADER    TRANSCRIPTION                           31-DEC-69   2XGE
TITLE     Crystal structure of a designed heterodimeric variant T-A(A)B of the
TITLE   2 tetracycline repressor
COMPND    MOL_ID: 1;
COMPND   2 MOLECULE: TETRACYCLINE REPRESSOR PROTEIN CLASS B FROM TRANSPOSON
COMPND   3 TN10, TETRACYCLINE REPRESSOR PROTEIN CLASS D;
COMPND   4 CHAIN: A;
COMPND   5 RESIDUES ;
COMPND   6 ENGINEERED: YES;
COMPND   7 MOL_ID: 2;
COMPND   8 TETRACYCLINE REPRESSOR PROTEIN CLASS B FROM TRANSPOSON
COMPND   9 TN10, TETRACYCLINE REPRESSOR PROTEIN CLASS D;
COMPND   10 CHAIN: B;
COMPND   11 MUTATION: YES;
COMPND   12 RESIDUES ;
COMPND   13 ENGINEERED: YES;
EXPDTA     X-RAY DIFFRACTION
REMARK   2 RESOLUTION.    2.14 ANGSTORMS
DBREF  2XGE A    1    50  UNP    P04483   TETR2_ECOLX      1     50
DBREF  2XGE A   51   208  UNP    P0ACT4   TETR4_ECOLX     51    208
DBREF  2XGE B    1    50  UNP    P04483   TETR2_ECOLX      1     50
DBREF  2XGE B   51   208  UNP    P0ACT4   TETR4_ECOLX     51    208
SEQRES   1 B   66  SER ARG LEU ASP LYS SER LYS VAL ILE ASN SER ALA LEU
SEQRES   2 B   66  GLU LEU LEU ASN GLU VAL GLY ILE GLU GLY LEU THR THR
SEQRES   3 B   66  ARG LYS LEU ALA GLN LYS LEU GLY VAL GLU GLN PRO THR
SEQRES   4 B   66  LEU TYR TRP HIS VAL LYS ASN LYS ARG ALA LEU LEU ASP
SEQRES   5 B   66  ALA LEU ALA VAL GLU ILE LEU ALA ARG HIS HIS ASP TYR
SEQRES   6 B   66  SER                                                
ATOM      1  CL  CL  B 594       8.886  18.390   7.743  1.00 74.07
TER