HEADER MEMBRANE PROTEIN 16-SEP-02 1MQH TITLE CRYSTAL STRUCTURE OF THE GLUR2 LIGAND BINDING CORE (S1S2J) IN COMPLEX TITLE 2 WITH BROMO-WILLARDIINE AT 1.8 ANGSTROMS RESOLUTION COMPND MOL_ID: 1; COMPND 2 MOLECULE: GLUTAMATE RECEPTOR 2; COMPND 3 CHAIN: A; COMPND 4 FRAGMENT: LIGAND BINDING CORE (S1S2J); COMPND 5 SYNONYM: GLUR-2, GLUR-B, GLUR-K2, GLUTAMATE RECEPTOR IONOTROPIC, AMPA COMPND 6 2; COMPND 7 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: RATTUS NORVEGICUS; SOURCE 3 ORGANISM_COMMON: NORWAY RAT; SOURCE 4 ORGANISM_TAXID: 10116; SOURCE 5 GENE: GLUR-2 OR GLUR-B; 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_VECTOR_TYPE: PLASMID; SOURCE 10 EXPRESSION_SYSTEM_PLASMID: PETGQ KEYWDS IONOTROPIC GLUTAMATE RECEPTOR, GLUR2, LIGAND BINDING CORE, S1S2, KEYWDS 2 PARTIAL AGONIST, WILLARDIINES, BROMO-WILLARDIINE, MEMBRANE PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR R.JIN,T.G.BANKE,M.L.MAYER,S.F.TRAYNELIS,E.GOUAUX REVDAT 4 02-AUG-17 1MQH 1 SOURCE REMARK REVDAT 3 24-FEB-09 1MQH 1 VERSN REVDAT 2 23-DEC-03 1MQH 1 JRNL REVDAT 1 05-AUG-03 1MQH 0 JRNL AUTH R.JIN,T.G.BANKE,M.L.MAYER,S.F.TRAYNELIS,E.GOUAUX JRNL TITL STRUCTURAL BASIS FOR PARTIAL AGONIST ACTION AT IONOTROPIC JRNL TITL 2 GLUTAMATE RECEPTORS JRNL REF NAT.NEUROSCI. V. 6 803 2003 JRNL REFN ISSN 1097-6256 JRNL PMID 12872125 JRNL DOI 10.1038/NN1091 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH N.ARMSTRONG,E.GOUAUX REMARK 1 TITL MECHANISMS FOR ACTIVATION AND ANTAGONISM OF AN REMARK 1 TITL 2 AMPA-SENSITIVE GLUTAMATE RECEPTOR: CRYSTAL STRUCTURES OF THE REMARK 1 TITL 3 GLUR2 LIGAND BINDING CORE REMARK 1 REF NEURON V. 28 165 2000 REMARK 1 REFN ISSN 0896-6273 REMARK 1 DOI 10.1016/S0896-6273(00)00094-5 REMARK 2 REMARK 2 RESOLUTION. 1.80 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 : NULL REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.80 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 27.60 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : 1324197.930 REMARK 3 DATA CUTOFF LOW (ABS(F)) : 0.0000 REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 89.7 REMARK 3 NUMBER OF REFLECTIONS : 24293 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) : 0.198 REMARK 3 FREE R VALUE : 0.231 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 9.900 REMARK 3 FREE R VALUE TEST SET COUNT : 2399 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : 0.005 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) : 1.80 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.91 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 53.60 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 2143 REMARK 3 BIN R VALUE (WORKING SET) : 0.2720 REMARK 3 BIN FREE R VALUE : 0.3070 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 9.50 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 225 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : 0.020 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1959 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 15 REMARK 3 SOLVENT ATOMS : 241 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 17.90 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 20.60 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : -2.11000 REMARK 3 B22 (A**2) : 4.01000 REMARK 3 B33 (A**2) : -1.90000 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) : 0.20 REMARK 3 ESD FROM SIGMAA (A) : 0.09 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) : 0.24 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.12 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.005 REMARK 3 BOND ANGLES (DEGREES) : 1.200 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 21.50 REMARK 3 IMPROPER ANGLES (DEGREES) : 0.760 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) : 1.170 ; 1.500 REMARK 3 MAIN-CHAIN ANGLE (A**2) : 1.710 ; 2.000 REMARK 3 SIDE-CHAIN BOND (A**2) : 2.040 ; 2.000 REMARK 3 SIDE-CHAIN ANGLE (A**2) : 2.920 ; 2.500 REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED : FLAT MODEL REMARK 3 KSOL : 0.34 REMARK 3 BSOL : 33.33 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 : ION.PARAM REMARK 3 PARAMETER FILE 4 : PARA_BR.TEST REMARK 3 PARAMETER FILE 5 : NULL REMARK 3 TOPOLOGY FILE 1 : PROTEIN.TOP REMARK 3 TOPOLOGY FILE 2 : WATER.TOP REMARK 3 TOPOLOGY FILE 3 : ION.TOP REMARK 3 TOPOLOGY FILE 4 : TOPO_BR.TEST REMARK 3 TOPOLOGY FILE 5 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1MQH COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 19-SEP-02. REMARK 100 THE DEPOSITION ID IS D_1000017102. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 28-MAR-01 REMARK 200 TEMPERATURE (KELVIN) : 110 REMARK 200 PH : 5.5 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 RUH3R REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.54 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : MIRRORS REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : RIGAKU RAXIS IV REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 24332 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.800 REMARK 200 RESOLUTION RANGE LOW (A) : 30.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : -3.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 89.5 REMARK 200 DATA REDUNDANCY : 4.030 REMARK 200 R MERGE (I) : 0.03900 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) : 1.80 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.86 REMARK 200 COMPLETENESS FOR SHELL (%) : 45.0 REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : 0.15700 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: FOURIER SYNTHESIS REMARK 200 SOFTWARE USED: CNS REMARK 200 STARTING MODEL: PDB ENTRY 1MQI REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 49.37 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.43 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PEG 8K, AMMONIUM SULFATE, NA ACETATE, REMARK 280 PH 5.5, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 277K 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 31.89300 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 45.92550 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 31.89300 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 45.92550 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 300 REMARK: THE ENTRY CONTAINS ONE MOLECULE WHICH FORMS A DIMER WITH REMARK 300 CRYSTALLOGRAPHIC SYMMETRY EQUIVALENT MOLECULE IN AN ADJACENT REMARK 300 ASYMMETRIC UNIT. THE SYMMETRY OPERATION IS (-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 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 63.78600 REMARK 350 BIOMT2 2 0.000000 -1.000000 0.000000 91.85100 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 GLY A 1 REMARK 465 ALA A 2 REMARK 465 SER A 263 REMARK 470 REMARK 470 MISSING ATOM REMARK 470 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (M=MODEL NUMBER; REMARK 470 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; REMARK 470 I=INSERTION CODE): REMARK 470 M RES CSSEQI ATOMS REMARK 470 ASN A 3 CB CG OD1 ND2 REMARK 470 LYS A 4 CB CG CD CE NZ REMARK 470 LYS A 21 CB CG CD CE NZ REMARK 470 ASN A 22 CB CG OD1 ND2 REMARK 470 GLU A 30 CD OE1 OE2 REMARK 470 LYS A 45 CG CD CE NZ REMARK 470 LYS A 50 CD CE NZ REMARK 470 LYS A 69 CB CG CD CE NZ REMARK 470 GLU A 122 CB CG CD OE1 OE2 REMARK 470 GLU A 132 CG CD OE1 OE2 REMARK 470 ARG A 149 CG CD NE CZ NH1 NH2 REMARK 470 LYS A 151 CD CE NZ REMARK 470 ARG A 172 CG CD NE CZ NH1 NH2 REMARK 470 LYS A 183 CD CE NZ REMARK 470 LYS A 185 CG CD CE NZ REMARK 470 LYS A 258 CG CD CE NZ 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 22 47.20 -104.39 REMARK 500 PRO A 205 23.58 -79.82 REMARK 500 LYS A 218 -167.97 -162.49 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 BWD A 301 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1FTJ RELATED DB: PDB REMARK 900 1FTJ IS THE SAME PROTEIN COMPLEXED WITH GLUTAMATE REMARK 900 RELATED ID: 1FTM RELATED DB: PDB REMARK 900 1FTM IS THE SAME PROTEIN COMPLEXED WITH AMPA REMARK 900 RELATED ID: 1MM6 RELATED DB: PDB REMARK 900 1MM6 IS THE SAME PROTEIN COMPLEXED WITH QUISQUALATE REMARK 900 RELATED ID: 1MM7 RELATED DB: PDB REMARK 900 1MM7 IS THE SAME PROTEIN COMPLEXED WITH QUISQUALATE REMARK 900 RELATED ID: 1MQG RELATED DB: PDB REMARK 900 1MQG IS THE SAME PROTEIN COMPLEXED WITH IODO-WILLARDIINE REMARK 900 RELATED ID: 1MQI RELATED DB: PDB REMARK 900 1MQI IS THE SAME PROTEIN COMPLEXED WITH FLUORO-WILLARDIINE REMARK 900 RELATED ID: 1MQJ RELATED DB: PDB REMARK 900 1MQJ IS THE SAME PROTEIN COMPLEXED WITH WILLARDIINE DBREF 1MQH A 3 117 UNP P19491 GRIA2_RAT 413 527 DBREF 1MQH A 120 263 UNP P19491 GLR2_RAT 653 796 SEQADV 1MQH GLY A 1 UNP P19491 CLONING ARTIFACT SEQADV 1MQH ALA A 2 UNP P19491 CLONING ARTIFACT SEQADV 1MQH GLY A 118 UNP P19491 LINKER SEQADV 1MQH THR A 119 UNP P19491 LINKER SEQRES 1 A 263 GLY ALA ASN LYS THR VAL VAL VAL THR THR ILE LEU GLU SEQRES 2 A 263 SER PRO TYR VAL MET MET LYS LYS ASN HIS GLU ALA LEU SEQRES 3 A 263 GLU GLY ASN GLU ARG TYR GLU GLY TYR CYS VAL ASP LEU SEQRES 4 A 263 ALA ALA GLU ILE ALA LYS HIS CYS GLY PHE LYS TYR LYS SEQRES 5 A 263 LEU THR ILE VAL GLY ASP GLY LYS TYR GLY ALA ARG ASP SEQRES 6 A 263 ALA ASP THR LYS ILE TRP ASN GLY MET VAL GLY GLU LEU SEQRES 7 A 263 VAL TYR GLY LYS ALA ASP ILE ALA ILE ALA PRO LEU THR SEQRES 8 A 263 ILE THR LEU VAL ARG GLU GLU VAL ILE ASP PHE SER LYS SEQRES 9 A 263 PRO PHE MET SER LEU GLY ILE SER ILE MET ILE LYS LYS SEQRES 10 A 263 GLY THR PRO ILE GLU SER ALA GLU ASP LEU SER LYS GLN SEQRES 11 A 263 THR GLU ILE ALA TYR GLY THR LEU ASP SER GLY SER THR SEQRES 12 A 263 LYS GLU PHE PHE ARG ARG SER LYS ILE ALA VAL PHE ASP SEQRES 13 A 263 LYS MET TRP THR TYR MET ARG SER ALA GLU PRO SER VAL SEQRES 14 A 263 PHE VAL ARG THR THR ALA GLU GLY VAL ALA ARG VAL ARG SEQRES 15 A 263 LYS SER LYS GLY LYS TYR ALA TYR LEU LEU GLU SER THR SEQRES 16 A 263 MET ASN GLU TYR ILE GLU GLN ARG LYS PRO CYS ASP THR SEQRES 17 A 263 MET LYS VAL GLY GLY ASN LEU ASP SER LYS GLY TYR GLY SEQRES 18 A 263 ILE ALA THR PRO LYS GLY SER SER LEU GLY ASN ALA VAL SEQRES 19 A 263 ASN LEU ALA VAL LEU LYS LEU ASN GLU GLN GLY LEU LEU SEQRES 20 A 263 ASP LYS LEU LYS ASN LYS TRP TRP TYR ASP LYS GLY GLU SEQRES 21 A 263 CYS GLY SER HET BWD A 301 15 HETNAM BWD 2-AMINO-3-(5-BROMO-2,4-DIOXO-3,4-DIHYDRO-2H-PYRIMIDIN- HETNAM 2 BWD 1-YL)-PROPIONIC ACID HETSYN BWD BROMO-WILLARDIINE FORMUL 2 BWD C7 H8 BR N3 O4 FORMUL 3 HOH *241(H2 O) HELIX 1 2 GLU A 27 GLU A 30 5 4 HELIX 2 3 GLY A 34 GLY A 48 1 15 HELIX 3 4 ASN A 72 TYR A 80 1 9 HELIX 4 5 THR A 93 GLU A 98 1 6 HELIX 5 6 SER A 123 LYS A 129 1 7 HELIX 6 7 GLY A 141 SER A 150 1 10 HELIX 7 8 ILE A 152 ALA A 165 1 14 HELIX 8 9 THR A 173 SER A 184 1 12 HELIX 9 10 SER A 194 GLN A 202 1 9 HELIX 10 11 LEU A 230 GLN A 244 1 15 HELIX 11 12 GLY A 245 TYR A 256 1 12 SHEET 1 A 3 TYR A 51 ILE A 55 0 SHEET 2 A 3 VAL A 6 THR A 10 1 N VAL A 8 O LYS A 52 SHEET 3 A 3 ILE A 85 ALA A 86 1 O ILE A 85 N THR A 9 SHEET 1 B 2 MET A 18 MET A 19 0 SHEET 2 B 2 TYR A 32 GLU A 33 -1 O GLU A 33 N MET A 18 SHEET 1 C 2 ILE A 100 PHE A 102 0 SHEET 2 C 2 ALA A 223 PRO A 225 -1 O THR A 224 N ASP A 101 SHEET 1 D 2 MET A 107 LEU A 109 0 SHEET 2 D 2 LYS A 218 TYR A 220 -1 O LYS A 218 N LEU A 109 SHEET 1 E 4 ALA A 134 GLY A 136 0 SHEET 2 E 4 TYR A 188 GLU A 193 1 O LEU A 191 N GLY A 136 SHEET 3 E 4 ILE A 111 LYS A 116 -1 N MET A 114 O TYR A 190 SHEET 4 E 4 THR A 208 VAL A 211 -1 O MET A 209 N ILE A 115 SSBOND 1 CYS A 206 CYS A 261 1555 1555 2.03 CISPEP 1 SER A 14 PRO A 15 0 0.33 CISPEP 2 GLU A 166 PRO A 167 0 -0.19 CISPEP 3 LYS A 204 PRO A 205 0 0.21 SITE 1 AC1 15 TYR A 61 PRO A 89 LEU A 90 THR A 91 SITE 2 AC1 15 ARG A 96 GLY A 141 SER A 142 THR A 143 SITE 3 AC1 15 THR A 174 LEU A 192 GLU A 193 MET A 196 SITE 4 AC1 15 TYR A 220 HOH A 325 HOH A 365 CRYST1 63.786 91.851 48.377 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 0.015677 0.000000 0.000000 0.00000 SCALE2 0.000000 0.010887 0.000000 0.00000 SCALE3 0.000000 0.000000 0.020671 0.00000