HEADER TRANSCRIPTION/GENE REGULATION 14-JAN-00 1DU7 OBSLTE 23-MAR-11 1DU7 2X9D TITLE CRYSTAL STRUCTURE OF TET REPRESSOR CLASS D WITH 4-EPI-TETRACYCLINE COMPND MOL_ID: 1; COMPND 2 MOLECULE: PROTEIN (TETRACYCLINE REPRESSOR PROTEIN CLASS D); COMPND 3 CHAIN: A; COMPND 4 ENGINEERED: YES; COMPND 5 MUTATION: YES; COMPND 6 OTHER_DETAILS: COMPLEXED WITH 7-CHLOROTETRACYCLINE SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI; SOURCE 3 ORGANISM_TAXID: 562; SOURCE 4 OTHER_DETAILS: ALA 1 FROM SWISS-PROT ENTRY P09164 WAS SUBSTITUTED TO SOURCE 5 SER AND RENUMBERED TO SER 2. RESIDUES 153 TILL 161 FROM THE SEQUENCE SOURCE 6 WERE NOT MODELLED. KEYWDS TRANSCRIPTION REGULATION, DNA-BINDING PROTEIN, HTH-MOTIF, KEYWDS 2 TRANSCRIPTION-GENE REGULATION COMPLEX EXPDTA X-RAY DIFFRACTION AUTHOR P.ORTH,W.SAENGER,W.HINRICHS REVDAT 3 23-MAR-11 1DU7 1 OBSLTE REVDAT 2 24-FEB-09 1DU7 1 VERSN REVDAT 1 20-MAR-00 1DU7 0 JRNL AUTH P.ORTH,D.SCHNAPPINGER,W.HILLEN,W.SAENGER,W.HINRICHS JRNL TITL STRUCTURAL BASIS OF GENE REGULATION BY THE TETRACYCLINE JRNL TITL 2 INDUCIBLE TET REPRESSOR-OPERATOR SYSTEM. JRNL REF NAT.STRUCT.BIOL. V. 7 215 2000 JRNL REFN ISSN 1072-8368 JRNL PMID 10700280 JRNL DOI 10.1038/73324 REMARK 2 REMARK 2 RESOLUTION. 2.51 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CNS 0.9 REMARK 3 AUTHORS : BRUNGER,ADAMS,CLORE,DELANO,GROS,GROSSE- REMARK 3 : KUNSTLEVE,JIANG,KUSZEWSKI,NILGES,PANNU, REMARK 3 : READ,RICE,SIMONSON,WARREN REMARK 3 REMARK 3 REFINEMENT TARGET : ENGH & HUBER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.51 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 33.47 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : 2115676.700 REMARK 3 DATA CUTOFF LOW (ABS(F)) : 0.0000 REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 93.8 REMARK 3 NUMBER OF REFLECTIONS : 7565 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : THROUGHOUT REMARK 3 FREE R VALUE TEST SET SELECTION : RANDOM REMARK 3 R VALUE (WORKING SET) : 0.227 REMARK 3 FREE R VALUE : 0.280 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 10.700 REMARK 3 FREE R VALUE TEST SET COUNT : 807 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : 0.010 REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : 6 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 2.51 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.67 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 97.30 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 1145 REMARK 3 BIN R VALUE (WORKING SET) : 0.3370 REMARK 3 BIN FREE R VALUE : 0.4050 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 10.30 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 131 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : 0.035 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1578 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 33 REMARK 3 SOLVENT ATOMS : 41 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 56.70 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 67.50 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 7.14000 REMARK 3 B22 (A**2) : 7.14000 REMARK 3 B33 (A**2) : -14.28000 REMARK 3 B12 (A**2) : 0.00000 REMARK 3 B13 (A**2) : 0.00000 REMARK 3 B23 (A**2) : 0.00000 REMARK 3 REMARK 3 ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM LUZZATI PLOT (A) : 0.36 REMARK 3 ESD FROM SIGMAA (A) : 0.46 REMARK 3 LOW RESOLUTION CUTOFF (A) : 5.00 REMARK 3 REMARK 3 CROSS-VALIDATED ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM C-V LUZZATI PLOT (A) : 0.48 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.65 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.011 REMARK 3 BOND ANGLES (DEGREES) : 1.40 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 18.00 REMARK 3 IMPROPER ANGLES (DEGREES) : 1.26 REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : RESTRAINED REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. RMS SIGMA REMARK 3 MAIN-CHAIN BOND (A**2) : 2.810 ; 1.500 REMARK 3 MAIN-CHAIN ANGLE (A**2) : 4.510 ; 2.000 REMARK 3 SIDE-CHAIN BOND (A**2) : 3.950 ; 2.000 REMARK 3 SIDE-CHAIN ANGLE (A**2) : 5.900 ; 2.500 REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED : FLAT MODEL REMARK 3 KSOL : 0.33 REMARK 3 BSOL : 69.37 REMARK 3 REMARK 3 NCS MODEL : NULL REMARK 3 REMARK 3 NCS RESTRAINTS. RMS SIGMA/WEIGHT REMARK 3 GROUP 1 POSITIONAL (A) : NULL ; NULL REMARK 3 GROUP 1 B-FACTOR (A**2) : NULL ; NULL REMARK 3 REMARK 3 PARAMETER FILE 1 : PROTEIN_REP.PA REMARK 3 PARAMETER FILE 2 : EPI_XPLOR_PAR.TXT REMARK 3 PARAMETER FILE 3 : WATER_REP.PARA REMARK 3 PARAMETER FILE 4 : NULL REMARK 3 TOPOLOGY FILE 1 : PROTEIN.TOP REMARK 3 TOPOLOGY FILE 2 : CTC_XPLOR_TOP.TXT REMARK 3 TOPOLOGY FILE 3 : WATER.TOP REMARK 3 TOPOLOGY FILE 4 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1DU7 COMPLIES WITH FORMAT V. 3.15, 01-DEC-08 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 27-JAN-00. REMARK 100 THE RCSB ID CODE IS RCSB010372. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 17-NOV-95 REMARK 200 TEMPERATURE (KELVIN) : 277 REMARK 200 PH : 8 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : SRS REMARK 200 BEAMLINE : PX9.6 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.87 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : MARRESEARCH REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : CCP4 (SCALA) REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 7661 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.510 REMARK 200 RESOLUTION RANGE LOW (A) : 33.470 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 95.1 REMARK 200 DATA REDUNDANCY : 3.720 REMARK 200 R MERGE (I) : 0.07300 REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 4.6000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.50 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.63 REMARK 200 COMPLETENESS FOR SHELL (%) : 94.0 REMARK 200 DATA REDUNDANCY IN SHELL : 3.80 REMARK 200 R MERGE FOR SHELL (I) : 0.49600 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 <I/SIGMA(I)> FOR SHELL : NULL REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: NULL REMARK 200 SOFTWARE USED: CNS REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 48.13 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.37 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 1M AMMONIUM SULFATE, TRIS HCL, PH 8, REMARK 280 VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 291K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: I 41 2 2 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X+1/2,-Y+1/2,Z+1/2 REMARK 290 3555 -Y,X+1/2,Z+1/4 REMARK 290 4555 Y+1/2,-X,Z+3/4 REMARK 290 5555 -X+1/2,Y,-Z+3/4 REMARK 290 6555 X,-Y+1/2,-Z+1/4 REMARK 290 7555 Y+1/2,X+1/2,-Z+1/2 REMARK 290 8555 -Y,-X,-Z REMARK 290 9555 X+1/2,Y+1/2,Z+1/2 REMARK 290 10555 -X,-Y,Z REMARK 290 11555 -Y+1/2,X,Z+3/4 REMARK 290 12555 Y,-X+1/2,Z+1/4 REMARK 290 13555 -X,Y+1/2,-Z+1/4 REMARK 290 14555 X+1/2,-Y,-Z+3/4 REMARK 290 15555 Y,X,-Z REMARK 290 16555 -Y+1/2,-X+1/2,-Z+1/2 REMARK 290 REMARK 290 WHERE NNN -> OPERATOR NUMBER REMARK 290 MMM -> TRANSLATION VECTOR REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY TRANSFORMATIONS REMARK 290 THE FOLLOWING TRANSFORMATIONS OPERATE ON THE ATOM/HETATM REMARK 290 RECORDS IN THIS ENTRY TO PRODUCE CRYSTALLOGRAPHICALLY REMARK 290 RELATED MOLECULES. REMARK 290 SMTRY1 1 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 1 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 1 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 2 -1.000000 0.000000 0.000000 34.76500 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 34.76500 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 91.40500 REMARK 290 SMTRY1 3 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 1.000000 0.000000 0.000000 34.76500 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 45.70250 REMARK 290 SMTRY1 4 0.000000 1.000000 0.000000 34.76500 REMARK 290 SMTRY2 4 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 137.10750 REMARK 290 SMTRY1 5 -1.000000 0.000000 0.000000 34.76500 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 5 0.000000 0.000000 -1.000000 137.10750 REMARK 290 SMTRY1 6 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 34.76500 REMARK 290 SMTRY3 6 0.000000 0.000000 -1.000000 45.70250 REMARK 290 SMTRY1 7 0.000000 1.000000 0.000000 34.76500 REMARK 290 SMTRY2 7 1.000000 0.000000 0.000000 34.76500 REMARK 290 SMTRY3 7 0.000000 0.000000 -1.000000 91.40500 REMARK 290 SMTRY1 8 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY2 8 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 8 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 9 1.000000 0.000000 0.000000 34.76500 REMARK 290 SMTRY2 9 0.000000 1.000000 0.000000 34.76500 REMARK 290 SMTRY3 9 0.000000 0.000000 1.000000 91.40500 REMARK 290 SMTRY1 10 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 10 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 10 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 11 0.000000 -1.000000 0.000000 34.76500 REMARK 290 SMTRY2 11 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 11 0.000000 0.000000 1.000000 137.10750 REMARK 290 SMTRY1 12 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY2 12 -1.000000 0.000000 0.000000 34.76500 REMARK 290 SMTRY3 12 0.000000 0.000000 1.000000 45.70250 REMARK 290 SMTRY1 13 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 13 0.000000 1.000000 0.000000 34.76500 REMARK 290 SMTRY3 13 0.000000 0.000000 -1.000000 45.70250 REMARK 290 SMTRY1 14 1.000000 0.000000 0.000000 34.76500 REMARK 290 SMTRY2 14 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 14 0.000000 0.000000 -1.000000 137.10750 REMARK 290 SMTRY1 15 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY2 15 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 15 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 16 0.000000 -1.000000 0.000000 34.76500 REMARK 290 SMTRY2 16 -1.000000 0.000000 0.000000 34.76500 REMARK 290 SMTRY3 16 0.000000 0.000000 -1.000000 91.40500 REMARK 290 REMARK 290 REMARK: NULL REMARK 300 REMARK 300 BIOMOLECULE: 1 REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON REMARK 300 BURIED SURFACE AREA. REMARK 300 REMARK: THE BIOLOGICAL ASSEMBLY IS A REMARK 300 DIMER CONSTRUCTED FROM CHAIN A REMARK 300 A SYMMETRY PARTNER GENERATED REMARK 300 BY THE CRYSTALLOGRAPHIC REMARK 300 TWO-FOLD AXIS -X, -Y, Z. REMARK 350 REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS REMARK 350 GIVEN BELOW. BOTH NON-CRYSTALLOGRAPHIC AND REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN. REMARK 350 REMARK 350 BIOMOLECULE: 1 REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: DIMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 7110 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 19420 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -51.0 KCAL/MOL REMARK 350 APPLY THE FOLLOWING TO CHAINS: A REMARK 350 BIOMT1 1 1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT2 1 0.000000 1.000000 0.000000 0.00000 REMARK 350 BIOMT3 1 0.000000 0.000000 1.000000 0.00000 REMARK 350 BIOMT1 2 -1.000000 0.000000 0.000000 69.53000 REMARK 350 BIOMT2 2 0.000000 -1.000000 0.000000 69.53000 REMARK 350 BIOMT3 2 0.000000 0.000000 1.000000 0.00000 REMARK 465 REMARK 465 MISSING RESIDUES REMARK 465 THE FOLLOWING RESIDUES WERE NOT LOCATED IN THE REMARK 465 EXPERIMENT. (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN REMARK 465 IDENTIFIER; SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.) REMARK 465 REMARK 465 M RES C SSSEQI REMARK 465 ALA A 154 REMARK 465 LEU A 155 REMARK 465 THR A 156 REMARK 465 ASP A 157 REMARK 465 ARG A 158 REMARK 465 PRO A 159 REMARK 465 ALA A 160 REMARK 465 ALA A 161 REMARK 465 PRO A 162 REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: TORSION ANGLES REMARK 500 REMARK 500 TORSION ANGLES OUTSIDE THE EXPECTED RAMACHANDRAN REGIONS: REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 STANDARD TABLE: REMARK 500 FORMAT:(10X,I3,1X,A3,1X,A1,I4,A1,4X,F7.2,3X,F7.2) REMARK 500 REMARK 500 EXPECTED VALUES: GJ KLEYWEGT AND TA JONES (1996). PHI/PSI- REMARK 500 CHOLOGY: RAMACHANDRAN REVISITED. STRUCTURE 4, 1395 - 1400 REMARK 500 REMARK 500 M RES CSSEQI PSI PHI REMARK 500 TYR A 66 70.82 -100.30 REMARK 500 PRO A 105 124.35 -39.91 REMARK 500 ALA A 144 -71.82 -50.74 REMARK 500 GLU A 150 -19.18 -48.72 REMARK 500 HIS A 151 -64.68 -94.22 REMARK 500 THR A 152 22.26 -53.52 REMARK 500 GLU A 164 -85.74 -57.15 REMARK 500 ASN A 165 -22.02 -38.37 REMARK 500 LEU A 174 -18.99 -46.67 REMARK 500 LEU A 204 -83.33 63.01 REMARK 500 REMARK 500 REMARK: NULL REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CTC A 210 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 2TCT RELATED DB: PDB REMARK 900 RELATED ID: 2TRT RELATED DB: PDB REMARK 900 RELATED ID: 1A6I RELATED DB: PDB REMARK 900 RELATED ID: 1BJ0 RELATED DB: PDB REMARK 900 RELATED ID: 1BJY RELATED DB: PDB REMARK 900 RELATED ID: 1BJZ RELATED DB: PDB DBREF 1DU7 A 2 208 UNP P0ACT4 TETR4_ECOLI 1 207 SEQADV 1DU7 SER A 2 UNP P0ACT4 ALA 2 MUTATION SEQRES 1 A 207 SER ARG LEU ASN ARG GLU SER VAL ILE ASP ALA ALA LEU SEQRES 2 A 207 GLU LEU LEU ASN GLU THR GLY ILE ASP GLY LEU THR THR SEQRES 3 A 207 ARG LYS LEU ALA GLN LYS LEU GLY ILE GLU GLN PRO THR SEQRES 4 A 207 LEU TYR TRP HIS VAL LYS ASN LYS ARG ALA LEU LEU ASP SEQRES 5 A 207 ALA LEU ALA VAL GLU ILE LEU ALA ARG HIS HIS ASP TYR SEQRES 6 A 207 SER LEU PRO ALA ALA GLY GLU SER TRP GLN SER PHE LEU SEQRES 7 A 207 ARG ASN ASN ALA MET SER PHE ARG ARG ALA LEU LEU ARG SEQRES 8 A 207 TYR ARG ASP GLY ALA LYS VAL HIS LEU GLY THR ARG PRO SEQRES 9 A 207 ASP GLU LYS GLN TYR ASP THR VAL GLU THR GLN LEU ARG SEQRES 10 A 207 PHE MET THR GLU ASN GLY PHE SER LEU ARG ASP GLY LEU SEQRES 11 A 207 TYR ALA ILE SER ALA VAL SER HIS PHE THR LEU GLY ALA SEQRES 12 A 207 VAL LEU GLU GLN GLN GLU HIS THR ALA ALA LEU THR ASP SEQRES 13 A 207 ARG PRO ALA ALA PRO ASP GLU ASN LEU PRO PRO LEU LEU SEQRES 14 A 207 ARG GLU ALA LEU GLN ILE MET ASP SER ASP ASP GLY GLU SEQRES 15 A 207 GLN ALA PHE LEU HIS GLY LEU GLU SER LEU ILE ARG GLY SEQRES 16 A 207 PHE GLU VAL GLN LEU THR ALA LEU LEU GLN ILE VAL HET CTC A 210 33 HETNAM CTC 7-CHLOROTETRACYCLINE FORMUL 2 CTC C22 H23 CL N2 O8 FORMUL 3 HOH *41(H2 O) HELIX 1 1 ASN A 5 GLY A 21 1 17 HELIX 2 2 THR A 20 LEU A 25 1 6 HELIX 3 3 THR A 26 LEU A 34 1 9 HELIX 4 4 GLU A 37 VAL A 45 1 9 HELIX 5 5 ASN A 47 HIS A 64 1 18 HELIX 6 6 SER A 74 ARG A 92 1 19 HELIX 7 7 ASP A 95 GLY A 102 1 8 HELIX 8 8 ASP A 106 LYS A 108 5 3 HELIX 9 9 GLN A 109 GLU A 122 1 14 HELIX 10 10 SER A 126 THR A 152 1 27 HELIX 11 11 PRO A 167 MET A 177 1 11 HELIX 12 12 GLY A 182 THR A 202 1 21 SITE 1 AC1 16 HIS A 64 SER A 67 ASN A 82 PHE A 86 SITE 2 AC1 16 HIS A 100 ARG A 104 PRO A 105 THR A 112 SITE 3 AC1 16 VAL A 113 GLN A 116 LEU A 131 ILE A 134 SITE 4 AC1 16 SER A 138 LEU A 174 HOH A 235 HOH A 244 CRYST1 69.530 69.530 182.810 90.00 90.00 90.00 I 41 2 2 16 ORIGX1 1.000000 0.000000 0.000000 0.00000 ORIGX2 0.000000 1.000000 0.000000 0.00000 ORIGX3 0.000000 0.000000 1.000000 0.00000 SCALE1 0.014382 0.000000 0.000000 0.00000 SCALE2 0.000000 0.014382 0.000000 0.00000 SCALE3 0.000000 0.000000 0.005470 0.00000