HEADER TRANSCRIPTION 26-SEP-03 1R2B TITLE CRYSTAL STRUCTURE OF THE BCL6 BTB DOMAIN COMPLEXED WITH A SMRT CO- TITLE 2 REPRESSOR PEPTIDE COMPND MOL_ID: 1; COMPND 2 MOLECULE: B-CELL LYMPHOMA 6 PROTEIN; COMPND 3 CHAIN: A, B; COMPND 4 FRAGMENT: BCL6 (RESIDUES 5-129); COMPND 5 SYNONYM: BCL-6, ZINC FINGER PROTEIN 51, LAZ-3 PROTEIN, POZ DOMAIN, COMPND 6 BTB/POZ DOMAIN; COMPND 7 ENGINEERED: YES; COMPND 8 MUTATION: YES; COMPND 9 MOL_ID: 2; COMPND 10 MOLECULE: NUCLEAR RECEPTOR CO-REPRESSOR 2; COMPND 11 CHAIN: C, D; COMPND 12 FRAGMENT: SMRT - BBD (RESIDUES 1414-1430); COMPND 13 SYNONYM: N-COR2, SILENCING MEDIATOR OF RETINOIC ACID AND THYROID COMPND 14 HORMONE RECEPTOR, SMRT, SMRTE, THYROID-, RETINOIC-ACID-RECEPTOR- COMPND 15 ASSOCIATED CO-REPRESSOR, T3 RECEPTOR- ASSOCIATING FACTOR, TRAC, CTG COMPND 16 REPEAT PROTEIN 26; COMPND 17 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: BCL6; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3); SOURCE 7 EXPRESSION_SYSTEM_TAXID: 469008; SOURCE 8 EXPRESSION_SYSTEM_STRAIN: BL21(DE3); SOURCE 9 EXPRESSION_SYSTEM_PLASMID: PET-32(A); SOURCE 10 MOL_ID: 2; SOURCE 11 ORGANISM_SCIENTIFIC: HOMO SAPIENS; SOURCE 12 ORGANISM_COMMON: HUMAN; SOURCE 13 ORGANISM_TAXID: 9606; SOURCE 14 GENE: NCOR2 OR CTG26; SOURCE 15 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3); SOURCE 16 EXPRESSION_SYSTEM_TAXID: 469008; SOURCE 17 EXPRESSION_SYSTEM_STRAIN: BL21(DE3); SOURCE 18 EXPRESSION_SYSTEM_PLASMID: PET-32(A) KEYWDS BTB DOMAIN, HDAC COMPLEX, B-CELL LYMPHOMA, TRANSCRIPTIONAL KEYWDS 2 REPRESSION, TRANSCRIPTION EXPDTA X-RAY DIFFRACTION AUTHOR K.F.AHMAD,A.MELNICK,S.A.LAX,D.BOUCHARD,J.LIU,C.L.KIANG,S.MAYER, AUTHOR 2 J.D.LICHT,G.G.PRIVE REVDAT 4 14-FEB-24 1R2B 1 REMARK REVDAT 3 27-OCT-21 1R2B 1 SEQADV REVDAT 2 24-FEB-09 1R2B 1 VERSN REVDAT 1 23-DEC-03 1R2B 0 JRNL AUTH K.F.AHMAD,A.MELNICK,S.LAX,D.BOUCHARD,J.LIU,C.L.KIANG, JRNL AUTH 2 S.MAYER,S.TAKAHASHI,J.D.LICHT,G.G.PRIVE JRNL TITL MECHANISM OF SMRT COREPRESSOR RECRUITMENT BY THE BCL6 BTB JRNL TITL 2 DOMAIN. JRNL REF MOL.CELL V. 12 1551 2003 JRNL REFN ISSN 1097-2765 JRNL PMID 14690607 JRNL DOI 10.1016/S1097-2765(03)00454-4 REMARK 2 REMARK 2 RESOLUTION. 2.20 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CNS 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) : 2.20 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 27.08 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : NULL REMARK 3 DATA CUTOFF LOW (ABS(F)) : NULL REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 96.7 REMARK 3 NUMBER OF REFLECTIONS : 15876 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 : 0.267 REMARK 3 FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 FREE R VALUE TEST SET COUNT : 768 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : NULL REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : NULL REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 2.20 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.34 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 89.50 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : NULL REMARK 3 BIN R VALUE (WORKING SET) : 0.2980 REMARK 3 BIN FREE R VALUE : 0.3990 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 BIN FREE R VALUE TEST SET COUNT : 104 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : 0.039 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 2275 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 0 REMARK 3 SOLVENT ATOMS : 130 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 19.00 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 37.70 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 0.69700 REMARK 3 B22 (A**2) : -5.14100 REMARK 3 B33 (A**2) : 4.44400 REMARK 3 B12 (A**2) : 0.00000 REMARK 3 B13 (A**2) : -0.44500 REMARK 3 B23 (A**2) : 0.00000 REMARK 3 REMARK 3 ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM LUZZATI PLOT (A) : 0.29 REMARK 3 ESD FROM SIGMAA (A) : 0.28 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) : 0.36 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.39 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.010 REMARK 3 BOND ANGLES (DEGREES) : 1.400 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 22.60 REMARK 3 IMPROPER ANGLES (DEGREES) : 0.760 REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. RMS SIGMA REMARK 3 MAIN-CHAIN BOND (A**2) : 1.483 ; 1.500 REMARK 3 MAIN-CHAIN ANGLE (A**2) : 2.424 ; 2.000 REMARK 3 SIDE-CHAIN BOND (A**2) : 2.133 ; 2.000 REMARK 3 SIDE-CHAIN ANGLE (A**2) : 3.087 ; 2.500 REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED : NULL REMARK 3 KSOL : 0.31 REMARK 3 BSOL : 37.37 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.PARAM REMARK 3 PARAMETER FILE 2 : WATER_REP.PARAM REMARK 3 PARAMETER FILE 3 : NULL REMARK 3 TOPOLOGY FILE 1 : NULL REMARK 3 TOPOLOGY FILE 2 : NULL REMARK 3 TOPOLOGY FILE 3 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1R2B COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 10-OCT-03. REMARK 100 THE DEPOSITION ID IS D_1000020349. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 20-NOV-01 REMARK 200 TEMPERATURE (KELVIN) : 100 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 RU200 REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418 REMARK 200 MONOCHROMATOR : OSMIC CONFOCAL REMARK 200 OPTICS : OSMIC CONFOCAL REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : MARRESEARCH REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 16405 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.200 REMARK 200 RESOLUTION RANGE LOW (A) : 30.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.2 REMARK 200 DATA REDUNDANCY : 3.600 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.05000 REMARK 200 FOR THE DATA SET : 24.0000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.20 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.28 REMARK 200 COMPLETENESS FOR SHELL (%) : 92.1 REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : 0.25600 REMARK 200 FOR SHELL : 3.700 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT 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 (%): 49.00 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.41 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PEG 3350, SODIUM ACETATE, VAPOR REMARK 280 DIFFUSION, HANGING DROP, TEMPERATURE 298K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 1 21 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,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 19.27150 REMARK 290 SMTRY3 2 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: TETRAMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TETRAMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 8310 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 13920 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -45.0 KCAL/MOL REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B, C, D 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 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 GLY A 3 REMARK 465 SER A 4 REMARK 465 GLY B 3 REMARK 465 SER B 4 REMARK 465 ALA B 5 REMARK 465 GLU B 129 REMARK 465 GLY D 1412 REMARK 465 SER D 1413 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 SER A 39 -130.24 57.34 REMARK 500 MET A 114 78.26 -117.88 REMARK 500 LEU B 31 7.44 56.95 REMARK 500 SER B 39 -142.89 70.54 REMARK 500 LEU B 65 -72.70 -73.38 REMARK 500 LYS B 66 30.86 -80.15 REMARK 500 SER B 93 -2.77 75.83 REMARK 500 REMARK 500 REMARK: NULL REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1R28 RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF THE B-CELL LYMPHOMA (BCL6) BTB DOMAIN TO 2.2 REMARK 900 ANGSTROM REMARK 900 RELATED ID: 1R29 RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF THE B-CELL LYMPHOMA (BCL6) BTB DOMAIN TO 1.3 REMARK 900 ANGSTROM DBREF 1R2B A 5 129 UNP P41182 BCL6_HUMAN 5 129 DBREF 1R2B B 5 129 UNP P41182 BCL6_HUMAN 5 129 DBREF 1R2B C 1414 1430 UNP Q9Y618 NCOR2_HUMAN 1414 1430 DBREF 1R2B D 1414 1430 UNP Q9Y618 NCOR2_HUMAN 1414 1430 SEQADV 1R2B GLY A 3 UNP P41182 CLONING ARTIFACT SEQADV 1R2B SER A 4 UNP P41182 CLONING ARTIFACT SEQADV 1R2B GLN A 8 UNP P41182 CYS 8 ENGINEERED MUTATION SEQADV 1R2B ARG A 67 UNP P41182 CYS 67 ENGINEERED MUTATION SEQADV 1R2B ASN A 84 UNP P41182 CYS 84 ENGINEERED MUTATION SEQADV 1R2B GLY B 3 UNP P41182 CLONING ARTIFACT SEQADV 1R2B SER B 4 UNP P41182 CLONING ARTIFACT SEQADV 1R2B GLN B 8 UNP P41182 CYS 8 ENGINEERED MUTATION SEQADV 1R2B ARG B 67 UNP P41182 CYS 67 ENGINEERED MUTATION SEQADV 1R2B ASN B 84 UNP P41182 CYS 84 ENGINEERED MUTATION SEQADV 1R2B GLY C -1 UNP Q9Y618 CLONING ARTIFACT SEQADV 1R2B SER C 0 UNP Q9Y618 CLONING ARTIFACT SEQADV 1R2B GLY D 1412 UNP Q9Y618 CLONING ARTIFACT SEQADV 1R2B SER D 1413 UNP Q9Y618 CLONING ARTIFACT SEQRES 1 A 127 GLY SER ALA ASP SER GLN ILE GLN PHE THR ARG HIS ALA SEQRES 2 A 127 SER ASP VAL LEU LEU ASN LEU ASN ARG LEU ARG SER ARG SEQRES 3 A 127 ASP ILE LEU THR ASP VAL VAL ILE VAL VAL SER ARG GLU SEQRES 4 A 127 GLN PHE ARG ALA HIS LYS THR VAL LEU MET ALA CYS SER SEQRES 5 A 127 GLY LEU PHE TYR SER ILE PHE THR ASP GLN LEU LYS ARG SEQRES 6 A 127 ASN LEU SER VAL ILE ASN LEU ASP PRO GLU ILE ASN PRO SEQRES 7 A 127 GLU GLY PHE ASN ILE LEU LEU ASP PHE MET TYR THR SER SEQRES 8 A 127 ARG LEU ASN LEU ARG GLU GLY ASN ILE MET ALA VAL MET SEQRES 9 A 127 ALA THR ALA MET TYR LEU GLN MET GLU HIS VAL VAL ASP SEQRES 10 A 127 THR CYS ARG LYS PHE ILE LYS ALA SER GLU SEQRES 1 B 127 GLY SER ALA ASP SER GLN ILE GLN PHE THR ARG HIS ALA SEQRES 2 B 127 SER ASP VAL LEU LEU ASN LEU ASN ARG LEU ARG SER ARG SEQRES 3 B 127 ASP ILE LEU THR ASP VAL VAL ILE VAL VAL SER ARG GLU SEQRES 4 B 127 GLN PHE ARG ALA HIS LYS THR VAL LEU MET ALA CYS SER SEQRES 5 B 127 GLY LEU PHE TYR SER ILE PHE THR ASP GLN LEU LYS ARG SEQRES 6 B 127 ASN LEU SER VAL ILE ASN LEU ASP PRO GLU ILE ASN PRO SEQRES 7 B 127 GLU GLY PHE ASN ILE LEU LEU ASP PHE MET TYR THR SER SEQRES 8 B 127 ARG LEU ASN LEU ARG GLU GLY ASN ILE MET ALA VAL MET SEQRES 9 B 127 ALA THR ALA MET TYR LEU GLN MET GLU HIS VAL VAL ASP SEQRES 10 B 127 THR CYS ARG LYS PHE ILE LYS ALA SER GLU SEQRES 1 C 19 GLY SER LEU VAL ALA THR VAL LYS GLU ALA GLY ARG SER SEQRES 2 C 19 ILE HIS GLU ILE PRO ARG SEQRES 1 D 19 GLY SER LEU VAL ALA THR VAL LYS GLU ALA GLY ARG SER SEQRES 2 D 19 ILE HIS GLU ILE PRO ARG FORMUL 5 HOH *130(H2 O) HELIX 1 1 ARG A 13 ARG A 28 1 16 HELIX 2 2 LYS A 47 CYS A 53 1 7 HELIX 3 3 GLY A 55 PHE A 61 1 7 HELIX 4 4 PRO A 80 TYR A 91 1 12 HELIX 5 5 ASN A 101 LEU A 112 1 12 HELIX 6 6 GLU A 115 ALA A 127 1 13 HELIX 7 7 ARG B 13 ARG B 28 1 16 HELIX 8 8 LYS B 47 CYS B 53 1 7 HELIX 9 9 GLY B 55 PHE B 61 1 7 HELIX 10 10 PRO B 80 TYR B 91 1 12 HELIX 11 11 ASN B 101 LEU B 112 1 12 HELIX 12 12 GLU B 115 LYS B 126 1 12 SHEET 1 A 3 ARG B 94 ARG B 98 0 SHEET 2 A 3 ASP A 6 PHE A 11 -1 N SER A 7 O LEU B 97 SHEET 3 A 3 ALA D1416 GLU D1420 1 O VAL D1418 N GLN A 10 SHEET 1 B 3 GLU A 41 ALA A 45 0 SHEET 2 B 3 VAL A 34 VAL A 38 -1 N VAL A 38 O GLU A 41 SHEET 3 B 3 VAL A 71 ASN A 73 1 O ILE A 72 N VAL A 37 SHEET 1 C 3 ARG A 94 LEU A 97 0 SHEET 2 C 3 SER B 7 PHE B 11 -1 O SER B 7 N LEU A 97 SHEET 3 C 3 ALA C1416 GLU C1420 1 O GLU C1420 N GLN B 10 SHEET 1 D 3 GLU B 41 ALA B 45 0 SHEET 2 D 3 VAL B 34 VAL B 38 -1 N ILE B 36 O PHE B 43 SHEET 3 D 3 VAL B 71 ASN B 73 1 O ILE B 72 N VAL B 37 CRYST1 54.228 38.543 76.659 90.00 92.92 90.00 P 1 21 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 0.018441 0.000000 0.000941 0.00000 SCALE2 0.000000 0.025945 0.000000 0.00000 SCALE3 0.000000 0.000000 0.013062 0.00000