HEADER TRANSCRIPTION 06-MAR-26 24KN TITLE CRYSTAL STRUCTURE OF THE SECOND BROMODOMAIN (BD2) OF HUMAN BRD2 IN TITLE 2 COMPLEX WITH NIMESULIDE COMPND MOL_ID: 1; COMPND 2 MOLECULE: BROMODOMAIN-CONTAINING PROTEIN 2; COMPND 3 CHAIN: A; COMPND 4 FRAGMENT: UNP RESIDUES 348-454; COMPND 5 SYNONYM: O27.1.1,REALLY INTERESTING NEW GENE 3 PROTEIN; COMPND 6 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: HOMO SAPIENS; SOURCE 3 ORGANISM_COMMON: HUMAN; SOURCE 4 ORGANISM_TAXID: 9606; SOURCE 5 GENE: BRD2, KIAA9001, RING3; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3); SOURCE 7 EXPRESSION_SYSTEM_TAXID: 469008 KEYWDS INHIBITOR, TRANSCRIPTION EXPDTA X-RAY DIFFRACTION AUTHOR B.PADMANABHAN,S.ASHOK REVDAT 1 29-JUL-26 24KN 0 JRNL AUTH A.SRIDHAR,N.KANDHASAMI,S.MATHUR,G.KRISHNAPPA,S.THIYAGARAJAN, JRNL AUTH 2 B.PADMANABHAN JRNL TITL BET BROMODOMAIN TARGETING BY NSAIDS: STRUCTURAL, JRNL TITL 2 BIOPHYSICAL, AND COMPUTATIONAL INSIGHTS. JRNL REF PROTEINS 2026 JRNL REFN ESSN 1097-0134 JRNL PMID 42458221 JRNL DOI 10.1002/PROT.70154 REMARK 2 REMARK 2 RESOLUTION. 1.69 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PHENIX (1.20.1_4487: ???) REMARK 3 AUTHORS : PAUL ADAMS,PAVEL AFONINE,VINCENT CHEN,IAN REMARK 3 : DAVIS,KRESHNA GOPAL,RALF GROSSE-KUNSTLEVE, REMARK 3 : LI-WEI HUNG,ROBERT IMMORMINO,TOM IOERGER, REMARK 3 : AIRLIE MCCOY,ERIK MCKEE,NIGEL MORIARTY, REMARK 3 : REETAL PAI,RANDY READ,JANE RICHARDSON, REMARK 3 : DAVID RICHARDSON,TOD ROMO,JIM SACCHETTINI, REMARK 3 : NICHOLAS SAUTER,JACOB SMITH,LAURENT REMARK 3 : STORONI,TOM TERWILLIGER,PETER ZWART REMARK 3 REMARK 3 REFINEMENT TARGET : ML REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.69 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 29.58 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 1.350 REMARK 3 COMPLETENESS FOR RANGE (%) : 86.9 REMARK 3 NUMBER OF REFLECTIONS : 12164 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.172 REMARK 3 R VALUE (WORKING SET) : 0.170 REMARK 3 FREE R VALUE : 0.209 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.010 REMARK 3 FREE R VALUE TEST SET COUNT : 609 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT (IN BINS). REMARK 3 BIN RESOLUTION RANGE COMPL. NWORK NFREE RWORK RFREE REMARK 3 1 3.6600 - 2.6900 0.99 3406 179 0.1579 0.1888 REMARK 3 2 2.6900 - 2.1400 0.96 3183 168 0.1696 0.2177 REMARK 3 3 2.1400 - 1.8700 0.84 2746 145 0.1810 0.2063 REMARK 3 4 1.8700 - 1.6900 0.69 2220 117 0.2284 0.3098 REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : FLAT BULK SOLVENT MODEL REMARK 3 SOLVENT RADIUS : 1.10 REMARK 3 SHRINKAGE RADIUS : 0.90 REMARK 3 K_SOL : NULL REMARK 3 B_SOL : NULL REMARK 3 REMARK 3 ERROR ESTIMATES. REMARK 3 COORDINATE ERROR (MAXIMUM-LIKELIHOOD BASED) : 0.180 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 20.850 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : NULL REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : NULL REMARK 3 B22 (A**2) : NULL REMARK 3 B33 (A**2) : NULL REMARK 3 B12 (A**2) : NULL REMARK 3 B13 (A**2) : NULL REMARK 3 B23 (A**2) : NULL REMARK 3 REMARK 3 TWINNING INFORMATION. REMARK 3 FRACTION: NULL REMARK 3 OPERATOR: NULL REMARK 3 REMARK 3 DEVIATIONS FROM IDEAL VALUES. REMARK 3 RMSD COUNT REMARK 3 BOND : 0.007 1032 REMARK 3 ANGLE : 0.949 1399 REMARK 3 CHIRALITY : 0.058 136 REMARK 3 PLANARITY : 0.009 189 REMARK 3 DIHEDRAL : 4.465 155 REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : NULL REMARK 3 REMARK 3 NCS DETAILS REMARK 3 NUMBER OF NCS GROUPS : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 24KN COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 09-MAR-26. REMARK 100 THE DEPOSITION ID IS D_1300068287. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 16-MAR-24 REMARK 200 TEMPERATURE (KELVIN) : 300 REMARK 200 PH : NULL REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : N REMARK 200 RADIATION SOURCE : ROTATING ANODE REMARK 200 BEAMLINE : NULL REMARK 200 X-RAY GENERATOR MODEL : RIGAKU MICROMAX-007 HF REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.54056 REMARK 200 MONOCHROMATOR : M REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : PIXEL REMARK 200 DETECTOR MANUFACTURER : RIGAKU HYPIX-6000HE REMARK 200 INTENSITY-INTEGRATION SOFTWARE : HKL-3000 REMARK 200 DATA SCALING SOFTWARE : HKL-3000 REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 12212 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.690 REMARK 200 RESOLUTION RANGE LOW (A) : 29.580 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 93.9 REMARK 200 DATA REDUNDANCY : 3.700 REMARK 200 R MERGE (I) : 0.14600 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 12.6000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.70 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.73 REMARK 200 COMPLETENESS FOR SHELL (%) : 66.0 REMARK 200 DATA REDUNDANCY IN SHELL : 2.50 REMARK 200 R MERGE FOR SHELL (I) : 0.50900 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: PHENIX REMARK 200 STARTING MODEL: 7VRM REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 45.49 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.26 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PEG MME 2000, 50MM TRIS, 50MM NACL, REMARK 280 VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 300K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 21 2 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 26.26350 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 35.79450 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 26.26350 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 35.79450 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: DIMERIC 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 APPLY THE FOLLOWING TO CHAINS: A REMARK 350 BIOMT1 2 1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT2 2 0.000000 1.000000 0.000000 0.00000 REMARK 350 BIOMT3 2 0.000000 0.000000 1.000000 32.06300 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 619 LIES ON A SPECIAL POSITION. REMARK 375 HOH A 724 LIES ON A SPECIAL POSITION. REMARK 375 HOH A 796 LIES ON A SPECIAL POSITION. REMARK 525 REMARK 525 SOLVENT REMARK 525 REMARK 525 THE SOLVENT MOLECULES HAVE CHAIN IDENTIFIERS THAT REMARK 525 INDICATE THE POLYMER CHAIN WITH WHICH THEY ARE MOST REMARK 525 CLOSELY ASSOCIATED. THE REMARK LISTS ALL THE SOLVENT REMARK 525 MOLECULES WHICH ARE MORE THAN 5A AWAY FROM THE REMARK 525 NEAREST POLYMER CHAIN (M = MODEL NUMBER; REMARK 525 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE REMARK 525 NUMBER; I=INSERTION CODE): REMARK 525 REMARK 525 M RES CSSEQI REMARK 525 HOH A 794 DISTANCE = 5.84 ANGSTROMS REMARK 525 HOH A 795 DISTANCE = 5.92 ANGSTROMS REMARK 525 HOH A 796 DISTANCE = 6.46 ANGSTROMS DBREF 24KN A 348 454 UNP P25440 BRD2_HUMAN 348 454 SEQADV 24KN GLY A 341 UNP P25440 EXPRESSION TAG SEQADV 24KN SER A 342 UNP P25440 EXPRESSION TAG SEQADV 24KN HIS A 343 UNP P25440 EXPRESSION TAG SEQADV 24KN MET A 344 UNP P25440 EXPRESSION TAG SEQADV 24KN GLN A 345 UNP P25440 EXPRESSION TAG SEQADV 24KN ASP A 346 UNP P25440 EXPRESSION TAG SEQADV 24KN PRO A 347 UNP P25440 EXPRESSION TAG SEQADV 24KN ALA A 455 UNP P25440 EXPRESSION TAG SEQRES 1 A 115 GLY SER HIS MET GLN ASP PRO GLU GLN LEU LYS HIS CYS SEQRES 2 A 115 ASN GLY ILE LEU LYS GLU LEU LEU SER LYS LYS HIS ALA SEQRES 3 A 115 ALA TYR ALA TRP PRO PHE TYR LYS PRO VAL ASP ALA SER SEQRES 4 A 115 ALA LEU GLY LEU HIS ASP TYR HIS ASP ILE ILE LYS HIS SEQRES 5 A 115 PRO MET ASP LEU SER THR VAL LYS ARG LYS MET GLU ASN SEQRES 6 A 115 ARG ASP TYR ARG ASP ALA GLN GLU PHE ALA ALA ASP VAL SEQRES 7 A 115 ARG LEU MET PHE SER ASN CYS TYR LYS TYR ASN PRO PRO SEQRES 8 A 115 ASP HIS ASP VAL VAL ALA MET ALA ARG LYS LEU GLN ASP SEQRES 9 A 115 VAL PHE GLU PHE ARG TYR ALA LYS MET PRO ALA HET NIM A 501 21 HETNAM NIM 4-NITRO-2-PHENOXYMETHANESULFONANILIDE HETSYN NIM NIMESULIDE FORMUL 2 NIM C13 H12 N2 O5 S FORMUL 3 HOH *196(H2 O) HELIX 1 AA1 GLN A 345 LEU A 361 1 17 HELIX 2 AA2 SER A 362 LYS A 364 5 3 HELIX 3 AA3 HIS A 365 TRP A 370 1 6 HELIX 4 AA4 PRO A 371 TYR A 373 5 3 HELIX 5 AA5 ASP A 377 GLY A 382 1 6 HELIX 6 AA6 ASP A 385 ILE A 390 1 6 HELIX 7 AA7 ASP A 395 ASN A 405 1 11 HELIX 8 AA8 ASP A 410 ASN A 429 1 20 HELIX 9 AA9 HIS A 433 ALA A 451 1 19 CRYST1 52.527 71.589 32.063 90.00 90.00 90.00 P 21 21 2 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 0.019038 0.000000 0.000000 0.00000 SCALE2 0.000000 0.013969 0.000000 0.00000 SCALE3 0.000000 0.000000 0.031189 0.00000 CONECT 980 981 CONECT 981 980 982 983 CONECT 982 981 CONECT 983 981 984 992 CONECT 984 983 985 CONECT 985 984 986 CONECT 986 985 987 993 CONECT 987 986 988 CONECT 988 987 989 990 991 CONECT 989 988 CONECT 990 988 CONECT 991 988 CONECT 992 983 993 CONECT 993 986 992 994 CONECT 994 993 995 CONECT 995 994 996 1000 CONECT 996 995 997 CONECT 997 996 998 CONECT 998 997 999 CONECT 999 998 1000 CONECT 1000 995 999 MASTER 219 0 1 9 0 0 0 6 1162 1 21 9 END