HEADER TRANSFERASE 19-JUN-07 2QC6 TITLE PROTEIN KINASE CK2 IN COMPLEX WITH DBC COMPND MOL_ID: 1; COMPND 2 MOLECULE: CASEIN KINASE II SUBUNIT ALPHA; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: CK II, CK2-ALPHA; COMPND 5 EC: 2.7.11.1; COMPND 6 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ZEA MAYS; SOURCE 3 ORGANISM_TAXID: 4577; SOURCE 4 GENE: ACK2; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 562 KEYWDS CK2, DBC, KINASE INHIBITORS, COUMARINS, TRANSFERASE EXPDTA X-RAY DIFFRACTION AUTHOR R.BATTISTUTTA REVDAT 3 24-FEB-09 2QC6 1 VERSN REVDAT 2 15-APR-08 2QC6 1 JRNL REVDAT 1 26-FEB-08 2QC6 0 JRNL AUTH A.CHILIN,R.BATTISTUTTA,A.BORTOLATO,G.COZZA, JRNL AUTH 2 S.ZANATTA,G.POLETTO,M.MAZZORANA,G.ZAGOTTO, JRNL AUTH 3 E.URIARTE,A.GUIOTTO,L.A.PINNA,F.MEGGIO,S.MORO JRNL TITL COUMARIN AS ATTRACTIVE CASEIN KINASE 2 (CK2) JRNL TITL 2 INHIBITOR SCAFFOLD: AN INTEGRATE APPROACH TO JRNL TITL 3 ELUCIDATE THE PUTATIVE BINDING MOTIF AND EXPLAIN JRNL TITL 4 STRUCTURE-ACTIVITY RELATIONSHIPS. JRNL REF J.MED.CHEM. V. 51 752 2008 JRNL REFN ISSN 0022-2623 JRNL PMID 18251491 JRNL DOI 10.1021/JM070909T REMARK 1 REMARK 2 REMARK 2 RESOLUTION. 1.85 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC 5.2.0019 REMARK 3 AUTHORS : MURSHUDOV,VAGIN,DODSON REMARK 3 REMARK 3 REFINEMENT TARGET : MAXIMUM LIKELIHOOD REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.85 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 20.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 88.4 REMARK 3 NUMBER OF REFLECTIONS : 26399 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 + TEST SET) : 0.217 REMARK 3 R VALUE (WORKING SET) : 0.214 REMARK 3 FREE R VALUE : 0.268 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 4.900 REMARK 3 FREE R VALUE TEST SET COUNT : 1370 REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : 20 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 1.85 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.90 REMARK 3 REFLECTION IN BIN (WORKING SET) : 1265 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 58.52 REMARK 3 BIN R VALUE (WORKING SET) : 0.3440 REMARK 3 BIN FREE R VALUE SET COUNT : 68 REMARK 3 BIN FREE R VALUE : 0.4090 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 2728 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 15 REMARK 3 SOLVENT ATOMS : 218 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 27.98 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : -2.46000 REMARK 3 B22 (A**2) : 0.94000 REMARK 3 B33 (A**2) : 0.73000 REMARK 3 B12 (A**2) : 0.00000 REMARK 3 B13 (A**2) : -1.76000 REMARK 3 B23 (A**2) : 0.00000 REMARK 3 REMARK 3 ESTIMATED OVERALL COORDINATE ERROR. REMARK 3 ESU BASED ON R VALUE (A): 0.190 REMARK 3 ESU BASED ON FREE R VALUE (A): 0.177 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.143 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 9.261 REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : 0.947 REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : 0.904 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES COUNT RMS WEIGHT REMARK 3 BOND LENGTHS REFINED ATOMS (A): 2813 ; 0.011 ; 0.022 REMARK 3 BOND LENGTHS OTHERS (A): NULL ; NULL ; NULL REMARK 3 BOND ANGLES REFINED ATOMS (DEGREES): 3805 ; 1.273 ; 1.966 REMARK 3 BOND ANGLES OTHERS (DEGREES): NULL ; NULL ; NULL REMARK 3 TORSION ANGLES, PERIOD 1 (DEGREES): 326 ; 5.588 ; 5.000 REMARK 3 TORSION ANGLES, PERIOD 2 (DEGREES): 145 ;38.331 ;23.862 REMARK 3 TORSION ANGLES, PERIOD 3 (DEGREES): 506 ;12.871 ;15.000 REMARK 3 TORSION ANGLES, PERIOD 4 (DEGREES): 19 ;19.712 ;15.000 REMARK 3 CHIRAL-CENTER RESTRAINTS (A**3): 399 ; 0.093 ; 0.200 REMARK 3 GENERAL PLANES REFINED ATOMS (A): 2152 ; 0.005 ; 0.020 REMARK 3 GENERAL PLANES OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED CONTACTS REFINED ATOMS (A): 1402 ; 0.202 ; 0.200 REMARK 3 NON-BONDED CONTACTS OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED TORSION REFINED ATOMS (A): 1924 ; 0.309 ; 0.200 REMARK 3 NON-BONDED TORSION OTHERS (A): NULL ; NULL ; NULL REMARK 3 H-BOND (X...Y) REFINED ATOMS (A): 249 ; 0.164 ; 0.200 REMARK 3 H-BOND (X...Y) OTHERS (A): NULL ; NULL ; NULL REMARK 3 POTENTIAL METAL-ION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 POTENTIAL METAL-ION OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY VDW REFINED ATOMS (A): 46 ; 0.162 ; 0.200 REMARK 3 SYMMETRY VDW OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY H-BOND REFINED ATOMS (A): 17 ; 0.230 ; 0.200 REMARK 3 SYMMETRY H-BOND OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY METAL-ION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY METAL-ION OTHERS (A): NULL ; NULL ; NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. COUNT RMS WEIGHT REMARK 3 MAIN-CHAIN BOND REFINED ATOMS (A**2): 1680 ; 0.700 ; 1.500 REMARK 3 MAIN-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE REFINED ATOMS (A**2): 2643 ; 1.128 ; 2.000 REMARK 3 SIDE-CHAIN BOND REFINED ATOMS (A**2): 1344 ; 1.801 ; 3.000 REMARK 3 SIDE-CHAIN ANGLE REFINED ATOMS (A**2): 1162 ; 2.594 ; 4.500 REMARK 3 REMARK 3 ANISOTROPIC THERMAL FACTOR RESTRAINTS. COUNT RMS WEIGHT REMARK 3 RIGID-BOND RESTRAINTS (A**2): NULL ; NULL ; NULL REMARK 3 SPHERICITY; FREE ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SPHERICITY; BONDED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 REMARK 3 NCS RESTRAINTS STATISTICS REMARK 3 NUMBER OF DIFFERENT NCS GROUPS : NULL REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : NULL REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : MASK REMARK 3 PARAMETERS FOR MASK CALCULATION REMARK 3 VDW PROBE RADIUS : 1.40 REMARK 3 ION PROBE RADIUS : 0.80 REMARK 3 SHRINKAGE RADIUS : 0.80 REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: HYDROGENS HAVE BEEN ADDED IN THE REMARK 3 RIDING POSITIONS REMARK 4 REMARK 4 2QC6 COMPLIES WITH FORMAT V. 3.15, 01-DEC-08 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 07-JUL-07. REMARK 100 THE RCSB ID CODE IS RCSB043414. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 01-DEC-05 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 8 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : ELETTRA REMARK 200 BEAMLINE : 5.2R REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.979 REMARK 200 MONOCHROMATOR : SI 111 CHANNEL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : MAR CCD 165 MM REMARK 200 INTENSITY-INTEGRATION SOFTWARE : MOSFLM REMARK 200 DATA SCALING SOFTWARE : SCALA REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 27834 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.850 REMARK 200 RESOLUTION RANGE LOW (A) : 69.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 2.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 86.5 REMARK 200 DATA REDUNDANCY : NULL REMARK 200 R MERGE (I) : 0.05700 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : NULL REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.85 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.94 REMARK 200 COMPLETENESS FOR SHELL (%) : 57.4 REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : 0.32900 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : NULL REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: AMORE REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 48.20 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.37 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 10-20% PEG4000, 0.2 M SODIUM REMARK 280 ACETATE, 0.1 M TRIS, PH 8, VAPOR DIFFUSION, TEMPERATURE 293.0K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: C 1 2 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,Y,-Z REMARK 290 3555 X+1/2,Y+1/2,Z REMARK 290 4555 -X+1/2,Y+1/2,-Z 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 0.00000 REMARK 290 SMTRY2 2 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 3 1.000000 0.000000 0.000000 70.83800 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 30.12600 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 4 -1.000000 0.000000 0.000000 70.83800 REMARK 290 SMTRY2 4 0.000000 1.000000 0.000000 30.12600 REMARK 290 SMTRY3 4 0.000000 0.000000 -1.000000 0.00000 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 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: MONOMERIC 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 375 REMARK 375 SPECIAL POSITION REMARK 375 THE FOLLOWING ATOMS ARE FOUND TO BE WITHIN 0.15 ANGSTROMS REMARK 375 OF A SYMMETRY RELATED ATOM AND ARE ASSUMED TO BE ON SPECIAL REMARK 375 POSITIONS. REMARK 375 REMARK 375 ATOM RES CSSEQI REMARK 375 HOH A 464 LIES ON A SPECIAL POSITION. REMARK 375 HOH A 470 LIES ON A SPECIAL POSITION. 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 MET A 6 REMARK 465 ARG A 334 REMARK 465 THR A 335 REMARK 465 ARG A 336 REMARK 465 ALA A 337 REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS IN SAME ASYMMETRIC UNIT REMARK 500 REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT. REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI DISTANCE REMARK 500 O HOH A 418 O HOH A 533 2.00 REMARK 500 REMARK 500 REMARK: NULL 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 ASN A 93 16.87 56.66 REMARK 500 GLU A 114 150.06 -48.51 REMARK 500 ASP A 156 43.72 -155.08 REMARK 500 ASP A 175 77.67 53.85 REMARK 500 ALA A 193 -161.75 60.46 REMARK 500 TYR A 234 73.74 -109.11 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 G12 A 1 DBREF 2QC6 A 6 337 UNP P28523 CSK2A_MAIZE 1 332 SEQADV 2QC6 CSO A 89 UNP P28523 CYS 84 MODIFIED RESIDUE SEQRES 1 A 332 MET SER LYS ALA ARG VAL TYR ALA ASP VAL ASN VAL LEU SEQRES 2 A 332 ARG PRO LYS GLU TYR TRP ASP TYR GLU ALA LEU THR VAL SEQRES 3 A 332 GLN TRP GLY GLU GLN ASP ASP TYR GLU VAL VAL ARG LYS SEQRES 4 A 332 VAL GLY ARG GLY LYS TYR SER GLU VAL PHE GLU GLY ILE SEQRES 5 A 332 ASN VAL ASN ASN ASN GLU LYS CYS ILE ILE LYS ILE LEU SEQRES 6 A 332 LYS PRO VAL LYS LYS LYS LYS ILE LYS ARG GLU ILE LYS SEQRES 7 A 332 ILE LEU GLN ASN LEU CSO GLY GLY PRO ASN ILE VAL LYS SEQRES 8 A 332 LEU LEU ASP ILE VAL ARG ASP GLN HIS SER LYS THR PRO SEQRES 9 A 332 SER LEU ILE PHE GLU TYR VAL ASN ASN THR ASP PHE LYS SEQRES 10 A 332 VAL LEU TYR PRO THR LEU THR ASP TYR ASP ILE ARG TYR SEQRES 11 A 332 TYR ILE TYR GLU LEU LEU LYS ALA LEU ASP TYR CYS HIS SEQRES 12 A 332 SER GLN GLY ILE MET HIS ARG ASP VAL LYS PRO HIS ASN SEQRES 13 A 332 VAL MET ILE ASP HIS GLU LEU ARG LYS LEU ARG LEU ILE SEQRES 14 A 332 ASP TRP GLY LEU ALA GLU PHE TYR HIS PRO GLY LYS GLU SEQRES 15 A 332 TYR ASN VAL ARG VAL ALA SER ARG TYR PHE LYS GLY PRO SEQRES 16 A 332 GLU LEU LEU VAL ASP LEU GLN ASP TYR ASP TYR SER LEU SEQRES 17 A 332 ASP MET TRP SER LEU GLY CYS MET PHE ALA GLY MET ILE SEQRES 18 A 332 PHE ARG LYS GLU PRO PHE PHE TYR GLY HIS ASP ASN HIS SEQRES 19 A 332 ASP GLN LEU VAL LYS ILE ALA LYS VAL LEU GLY THR ASP SEQRES 20 A 332 GLY LEU ASN VAL TYR LEU ASN LYS TYR ARG ILE GLU LEU SEQRES 21 A 332 ASP PRO GLN LEU GLU ALA LEU VAL GLY ARG HIS SER ARG SEQRES 22 A 332 LYS PRO TRP LEU LYS PHE MET ASN ALA ASP ASN GLN HIS SEQRES 23 A 332 LEU VAL SER PRO GLU ALA ILE ASP PHE LEU ASP LYS LEU SEQRES 24 A 332 LEU ARG TYR ASP HIS GLN GLU ARG LEU THR ALA LEU GLU SEQRES 25 A 332 ALA MET THR HIS PRO TYR PHE GLN GLN VAL ARG ALA ALA SEQRES 26 A 332 GLU ASN SER ARG THR ARG ALA MODRES 2QC6 CSO A 89 CYS S-HYDROXYCYSTEINE HET CSO A 89 7 HET G12 A 1 15 HETNAM CSO S-HYDROXYCYSTEINE HETNAM G12 3,8-DIBROMO-7-HYDROXY-4-METHYL-2H-CHROMEN-2-ONE HETSYN G12 3,8-DIBROMO-7-HYDROXY-4-METHYLCHROMEN-2-ONE FORMUL 1 CSO C3 H7 N O3 S FORMUL 2 G12 C10 H6 BR2 O3 FORMUL 3 HOH *218(H2 O) HELIX 1 1 ASP A 14 ARG A 19 1 6 HELIX 2 2 PRO A 20 ASP A 25 1 6 HELIX 3 3 TYR A 26 LEU A 29 5 4 HELIX 4 4 GLU A 35 ASP A 37 5 3 HELIX 5 5 LYS A 74 CSO A 89 1 16 HELIX 6 6 ASP A 120 TYR A 125 1 6 HELIX 7 7 PRO A 126 LEU A 128 5 3 HELIX 8 8 THR A 129 GLN A 150 1 22 HELIX 9 9 LYS A 158 HIS A 160 5 3 HELIX 10 10 ASP A 175 ALA A 179 5 5 HELIX 11 11 SER A 194 LYS A 198 5 5 HELIX 12 12 GLY A 199 VAL A 204 1 6 HELIX 13 13 TYR A 211 ARG A 228 1 18 HELIX 14 14 ASP A 237 GLY A 250 1 14 HELIX 15 15 GLY A 250 TYR A 261 1 12 HELIX 16 16 ASP A 266 GLY A 274 1 9 HELIX 17 17 PRO A 280 MET A 285 5 6 HELIX 18 18 ASN A 289 VAL A 293 5 5 HELIX 19 19 SER A 294 LEU A 305 1 12 HELIX 20 20 THR A 314 THR A 320 1 7 HELIX 21 21 HIS A 321 TYR A 323 5 3 HELIX 22 22 PHE A 324 ASN A 332 1 9 SHEET 1 A 5 TYR A 39 ARG A 47 0 SHEET 2 A 5 SER A 51 ASN A 58 -1 O GLU A 55 N ARG A 43 SHEET 3 A 5 LYS A 64 LEU A 70 -1 O ILE A 69 N GLU A 52 SHEET 4 A 5 PRO A 109 PHE A 113 -1 O LEU A 111 N LYS A 68 SHEET 5 A 5 LEU A 97 ARG A 102 -1 N LEU A 98 O ILE A 112 SHEET 1 B 2 ILE A 152 MET A 153 0 SHEET 2 B 2 GLU A 180 PHE A 181 -1 O GLU A 180 N MET A 153 SHEET 1 C 2 VAL A 162 ASP A 165 0 SHEET 2 C 2 LYS A 170 LEU A 173 -1 O LYS A 170 N ASP A 165 LINK C LEU A 88 N CSO A 89 1555 1555 1.33 LINK C CSO A 89 N GLY A 90 1555 1555 1.34 CISPEP 1 GLU A 230 PRO A 231 0 -5.99 SITE 1 AC1 7 ILE A 66 LYS A 68 PHE A 113 MET A 163 SITE 2 AC1 7 ILE A 174 ASP A 175 HOH A 366 CRYST1 141.676 60.252 44.901 90.00 103.00 90.00 C 1 2 1 4 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 0.007058 0.000000 0.001629 0.00000 SCALE2 0.000000 0.016597 0.000000 0.00000 SCALE3 0.000000 0.000000 0.022857 0.00000 MASTER 288 0 2 22 9 0 2 6 0 0 0 26 END