HEADER MEMBRANE PROTEIN 12-SEP-00 1FTL TITLE CRYSTAL STRUCTURE OF THE GLUR2 LIGAND BINDING CORE (S1S2J) IN COMPLEX TITLE 2 WITH THE ANTAGONIST DNQX AT 1.8 A RESOLUTION COMPND MOL_ID: 1; COMPND 2 MOLECULE: GLUTAMATE RECEPTOR SUBUNIT 2; COMPND 3 CHAIN: A, B; COMPND 4 FRAGMENT: LIGAND BINDING CORE (S1S2J); COMPND 5 SYNONYM: GLUR-2; COMPND 6 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 ORGAN: BRAIN; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 9 EXPRESSION_SYSTEM_VECTOR: PET30B KEYWDS GLUTAMATE RECEPTOR, S1S2, LIGAND BINDING CORE, ANTAGONIST, DNQX, KEYWDS 2 MEMBRANE PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR N.ARMSTRONG,E.GOUAUX REVDAT 4 13-NOV-24 1FTL 1 REMARK SEQADV REVDAT 3 02-AUG-17 1FTL 1 SOURCE REMARK REVDAT 2 24-FEB-09 1FTL 1 VERSN REVDAT 1 01-NOV-00 1FTL 0 JRNL AUTH N.ARMSTRONG,E.GOUAUX JRNL TITL MECHANISMS FOR ACTIVATION AND ANTAGONISM OF AN JRNL TITL 2 AMPA-SENSITIVE GLUTAMATE RECEPTOR: CRYSTAL STRUCTURES OF THE JRNL TITL 3 GLUR2 LIGAND BINDING CORE. JRNL REF NEURON V. 28 165 2000 JRNL REFN ISSN 0896-6273 JRNL PMID 11086992 JRNL DOI 10.1016/S0896-6273(00)00094-5 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH G.Q.CHEN,Y.SUN,R.JIN,E.GOUAUX REMARK 1 TITL PROBING THE LIGAND BINDING DOMAIN OF THE GLUR2 RECEPTOR BY REMARK 1 TITL 2 PROTEOLYSIS AND DELETION MUTATGENESIS DEFINES DOMAIN REMARK 1 TITL 3 BOUNDARIES AND YIELDS A CRYSTALLIZABLE CONSTRUCT REMARK 1 REF PROTEIN SCI. V. 7 2623 1998 REMARK 1 REFN ISSN 0961-8368 REMARK 2 REMARK 2 RESOLUTION. 1.80 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : X-PLOR 3.851 REMARK 3 AUTHORS : BRUNGER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.80 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 20.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 2.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : NULL REMARK 3 DATA CUTOFF LOW (ABS(F)) : NULL REMARK 3 COMPLETENESS (WORKING+TEST) (%) : NULL REMARK 3 NUMBER OF REFLECTIONS : 50699 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : NULL REMARK 3 FREE R VALUE TEST SET SELECTION : RANDOM REMARK 3 R VALUE (WORKING SET) : 0.219 REMARK 3 FREE R VALUE : 0.272 REMARK 3 FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 FREE R VALUE TEST SET COUNT : 5149 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) : NULL REMARK 3 BIN RESOLUTION RANGE LOW (A) : NULL REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : NULL REMARK 3 REFLECTIONS IN BIN (WORKING SET) : NULL REMARK 3 BIN R VALUE (WORKING SET) : NULL REMARK 3 BIN FREE R VALUE : NULL REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 BIN FREE R VALUE TEST SET COUNT : NULL REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : NULL REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 3847 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 41 REMARK 3 SOLVENT ATOMS : 363 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 14.96 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 ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM LUZZATI PLOT (A) : NULL REMARK 3 ESD FROM SIGMAA (A) : NULL REMARK 3 LOW RESOLUTION CUTOFF (A) : NULL REMARK 3 REMARK 3 CROSS-VALIDATED ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM C-V LUZZATI PLOT (A) : NULL REMARK 3 ESD FROM C-V SIGMAA (A) : NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.010 REMARK 3 BOND ANGLES (DEGREES) : 1.421 REMARK 3 DIHEDRAL ANGLES (DEGREES) : NULL REMARK 3 IMPROPER ANGLES (DEGREES) : NULL 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) : NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE (A**2) : NULL ; NULL REMARK 3 SIDE-CHAIN BOND (A**2) : NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE (A**2) : NULL ; NULL 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 : NULL REMARK 3 TOPOLOGY FILE 1 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1FTL COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 05-OCT-00. REMARK 100 THE DEPOSITION ID IS D_1000011889. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 20-OCT-99 REMARK 200 TEMPERATURE (KELVIN) : 110 REMARK 200 PH : 5.0 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : NSLS REMARK 200 BEAMLINE : X4A 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 : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : ADSC QUANTUM 4 REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 50796 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.800 REMARK 200 RESOLUTION RANGE LOW (A) : 30.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 95.0 REMARK 200 DATA REDUNDANCY : 5.880 REMARK 200 R MERGE (I) : 0.05300 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 40.6000 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 (%) : 83.8 REMARK 200 DATA REDUNDANCY IN SHELL : 4.60 REMARK 200 R MERGE FOR SHELL (I) : 0.08400 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: NULL REMARK 200 SOFTWARE USED: SOLVE REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 49.28 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.43 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 19% PEG 4000 0.3 M AMMONIUM SULFATE REMARK 280 0.1 M SODIUM ACETATE, PH 5.0, VAPOR DIFFUSION, HANGING DROP, REMARK 280 TEMPERATURE 277K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 21 21 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X+1/2,-Y,Z+1/2 REMARK 290 3555 -X,Y+1/2,-Z+1/2 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 31.07650 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 48.68450 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 46.85150 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 48.68450 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 31.07650 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 46.85150 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, B 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 1 REMARK 465 ALA A 2 REMARK 465 ASN A 3 REMARK 465 LYS A 4 REMARK 465 GLY A 262 REMARK 465 SER A 263 REMARK 465 GLY B 1 REMARK 465 ALA B 2 REMARK 465 ASN B 3 REMARK 465 LYS B 4 REMARK 465 GLY B 262 REMARK 465 SER B 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 LYS A 21 CB CG CD CE NZ REMARK 470 MET A 25 CG SD CE REMARK 470 GLU A 27 CB CG CD OE1 OE2 REMARK 470 GLU A 30 CG CD OE1 OE2 REMARK 470 LYS A 52 CB CG CD CE NZ REMARK 470 ASP A 65 CG OD1 OD2 REMARK 470 THR A 68 CB OG1 CG2 REMARK 470 LYS A 69 CB CG CD CE NZ REMARK 470 GLU A 122 CG CD OE1 OE2 REMARK 470 LYS A 129 CG CD CE NZ REMARK 470 GLU A 132 CG CD OE1 OE2 REMARK 470 SER A 140 CB OG REMARK 470 GLU A 145 CG CD OE1 OE2 REMARK 470 ARG A 149 CG CD NE CZ NH1 NH2 REMARK 470 LYS A 151 CG CD CE NZ REMARK 470 ARG A 163 CG CD NE CZ NH1 NH2 REMARK 470 ARG A 172 CG CD NE CZ NH1 NH2 REMARK 470 LYS A 204 CB CG CD CE NZ REMARK 470 LYS A 226 CG CD CE NZ REMARK 470 LEU A 246 CG CD1 CD2 REMARK 470 CYS A 261 O REMARK 470 LYS B 21 CG CD CE NZ REMARK 470 GLU B 30 CG CD OE1 OE2 REMARK 470 LYS B 50 CG CD CE NZ REMARK 470 LYS B 52 CG CD CE NZ REMARK 470 ASP B 65 CG OD1 OD2 REMARK 470 ASP B 67 CB CG OD1 OD2 REMARK 470 THR B 68 CB OG1 CG2 REMARK 470 LYS B 69 CB CG CD CE NZ REMARK 470 LYS B 82 CG CD CE NZ REMARK 470 GLU B 125 CG CD OE1 OE2 REMARK 470 GLU B 132 CG CD OE1 OE2 REMARK 470 SER B 140 CB OG REMARK 470 SER B 142 OG REMARK 470 ARG B 148 CG CD NE CZ NH1 NH2 REMARK 470 ARG B 149 CB CG CD NE CZ NH1 NH2 REMARK 470 LYS B 151 CB CG CD CE NZ REMARK 470 ARG B 172 CG CD NE CZ NH1 NH2 REMARK 470 LYS B 185 CG CD CE NZ REMARK 470 LYS B 204 CG CD CE NZ REMARK 470 SER B 229 CB OG REMARK 470 ASN B 232 CB CG OD1 ND2 REMARK 470 CYS B 261 O 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 LYS A 69 -1.53 76.43 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 SO4 B 366 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE DNQ B 364 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE DNQ A 365 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1GR2 RELATED DB: PDB REMARK 900 GLUR2 S1S2I IN COMPLEX WITH THE PARTIAL AGONIST KAINATE REMARK 900 RELATED ID: 1FTJ RELATED DB: PDB REMARK 900 GLUR2 S1S2J IN COMPLEX WITH FULL AGONIST GLUTAMATE REMARK 900 RELATED ID: 1FTK RELATED DB: PDB REMARK 900 GLUR2 S1S2J IN COMPLEX WITH THE PARTIAL AGONIST KAINATE REMARK 900 RELATED ID: 1FTM RELATED DB: PDB REMARK 900 GLUR2 LIGAND BINDING CORE (S1S2J) IN COMPLEX WITH AMPA REMARK 900 RELATED ID: 1FTO RELATED DB: PDB REMARK 900 GLUR2 LIGAND BINDING CORE (S1S2J) IN THE APO STATE REMARK 900 RELATED ID: 1FW0 RELATED DB: PDB REMARK 900 GLUR2 LIGAND BINDING CORE (S1S2J) IN COMPLEX WITH KAINATE DBREF 1FTL A 3 117 UNP P19491 GRIA2_RAT 413 527 DBREF 1FTL A 120 263 UNP P19491 GRIA2_RAT 653 796 DBREF 1FTL B 3 117 UNP P19491 GRIA2_RAT 413 527 DBREF 1FTL B 120 263 UNP P19491 GRIA2_RAT 653 796 SEQADV 1FTL GLY A 1 UNP P19491 CLONING ARTIFACT SEQADV 1FTL ALA A 2 UNP P19491 CLONING ARTIFACT SEQADV 1FTL GLY B 1 UNP P19491 CLONING ARTIFACT SEQADV 1FTL ALA B 2 UNP P19491 CLONING ARTIFACT SEQADV 1FTL GLY A 118 UNP P19491 LINKER SEQADV 1FTL THR A 119 UNP P19491 LINKER SEQADV 1FTL GLY B 118 UNP P19491 LINKER SEQADV 1FTL THR B 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 MET 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 SEQRES 1 B 263 GLY ALA ASN LYS THR VAL VAL VAL THR THR ILE LEU GLU SEQRES 2 B 263 SER PRO TYR VAL MET MET LYS LYS ASN HIS GLU MET LEU SEQRES 3 B 263 GLU GLY ASN GLU ARG TYR GLU GLY TYR CYS VAL ASP LEU SEQRES 4 B 263 ALA ALA GLU ILE ALA LYS HIS CYS GLY PHE LYS TYR LYS SEQRES 5 B 263 LEU THR ILE VAL GLY ASP GLY LYS TYR GLY ALA ARG ASP SEQRES 6 B 263 ALA ASP THR LYS ILE TRP ASN GLY MET VAL GLY GLU LEU SEQRES 7 B 263 VAL TYR GLY LYS ALA ASP ILE ALA ILE ALA PRO LEU THR SEQRES 8 B 263 ILE THR LEU VAL ARG GLU GLU VAL ILE ASP PHE SER LYS SEQRES 9 B 263 PRO PHE MET SER LEU GLY ILE SER ILE MET ILE LYS LYS SEQRES 10 B 263 GLY THR PRO ILE GLU SER ALA GLU ASP LEU SER LYS GLN SEQRES 11 B 263 THR GLU ILE ALA TYR GLY THR LEU ASP SER GLY SER THR SEQRES 12 B 263 LYS GLU PHE PHE ARG ARG SER LYS ILE ALA VAL PHE ASP SEQRES 13 B 263 LYS MET TRP THR TYR MET ARG SER ALA GLU PRO SER VAL SEQRES 14 B 263 PHE VAL ARG THR THR ALA GLU GLY VAL ALA ARG VAL ARG SEQRES 15 B 263 LYS SER LYS GLY LYS TYR ALA TYR LEU LEU GLU SER THR SEQRES 16 B 263 MET ASN GLU TYR ILE GLU GLN ARG LYS PRO CYS ASP THR SEQRES 17 B 263 MET LYS VAL GLY GLY ASN LEU ASP SER LYS GLY TYR GLY SEQRES 18 B 263 ILE ALA THR PRO LYS GLY SER SER LEU GLY ASN ALA VAL SEQRES 19 B 263 ASN LEU ALA VAL LEU LYS LEU ASN GLU GLN GLY LEU LEU SEQRES 20 B 263 ASP LYS LEU LYS ASN LYS TRP TRP TYR ASP LYS GLY GLU SEQRES 21 B 263 CYS GLY SER HET DNQ A 365 18 HET SO4 B 366 5 HET DNQ B 364 18 HETNAM DNQ 6,7-DINITROQUINOXALINE-2,3-DIONE HETNAM SO4 SULFATE ION HETSYN DNQ DNQX FORMUL 3 DNQ 2(C8 H2 N4 O6) FORMUL 4 SO4 O4 S 2- FORMUL 6 HOH *363(H2 O) HELIX 1 1 ASN A 22 LEU A 26 5 5 HELIX 2 2 GLU A 27 GLU A 30 5 4 HELIX 3 3 GLY A 34 GLY A 48 1 15 HELIX 4 4 ASN A 72 TYR A 80 1 9 HELIX 5 5 THR A 93 GLU A 98 1 6 HELIX 6 6 SER A 123 LYS A 129 1 7 HELIX 7 7 GLY A 141 SER A 150 1 10 HELIX 8 8 ILE A 152 ALA A 165 1 14 HELIX 9 9 THR A 173 SER A 184 1 12 HELIX 10 10 SER A 194 GLN A 202 1 9 HELIX 11 11 LEU A 230 GLN A 244 1 15 HELIX 12 12 GLY A 245 TYR A 256 1 12 HELIX 13 13 ASN B 22 LEU B 26 5 5 HELIX 14 14 GLU B 27 GLU B 30 5 4 HELIX 15 15 GLY B 34 GLY B 48 1 15 HELIX 16 16 ASN B 72 TYR B 80 1 9 HELIX 17 17 THR B 93 GLU B 98 1 6 HELIX 18 18 SER B 123 LYS B 129 1 7 HELIX 19 19 GLY B 141 SER B 150 1 10 HELIX 20 20 ILE B 152 ALA B 165 1 14 HELIX 21 21 THR B 173 SER B 184 1 12 HELIX 22 22 SER B 194 GLU B 201 1 8 HELIX 23 23 LEU B 230 GLN B 244 1 15 HELIX 24 24 GLY B 245 TYR B 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 O VAL A 6 N 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 N LYS A 218 O 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 N ALA A 189 O ALA A 134 SHEET 3 E 4 ILE A 111 LYS A 116 -1 N SER A 112 O LEU A 192 SHEET 4 E 4 THR A 208 VAL A 211 -1 O MET A 209 N ILE A 115 SHEET 1 F 5 TYR B 51 ILE B 55 0 SHEET 2 F 5 VAL B 6 THR B 10 1 O VAL B 6 N LYS B 52 SHEET 3 F 5 ILE B 85 THR B 91 1 O ILE B 85 N THR B 9 SHEET 4 F 5 LYS B 218 PRO B 225 -1 N GLY B 221 O LEU B 90 SHEET 5 F 5 ILE B 100 PHE B 102 -1 N ASP B 101 O THR B 224 SHEET 1 G 5 TYR B 51 ILE B 55 0 SHEET 2 G 5 VAL B 6 THR B 10 1 O VAL B 6 N LYS B 52 SHEET 3 G 5 ILE B 85 THR B 91 1 O ILE B 85 N THR B 9 SHEET 4 G 5 LYS B 218 PRO B 225 -1 N GLY B 221 O LEU B 90 SHEET 5 G 5 MET B 107 LEU B 109 -1 O MET B 107 N TYR B 220 SHEET 1 H 2 MET B 18 MET B 19 0 SHEET 2 H 2 TYR B 32 GLU B 33 -1 O GLU B 33 N MET B 18 SHEET 1 I 4 ALA B 134 GLY B 136 0 SHEET 2 I 4 TYR B 188 GLU B 193 1 N ALA B 189 O ALA B 134 SHEET 3 I 4 ILE B 111 LYS B 116 -1 N SER B 112 O LEU B 192 SHEET 4 I 4 THR B 208 VAL B 211 -1 N MET B 209 O ILE B 115 SSBOND 1 CYS A 206 CYS A 261 1555 1555 2.04 SSBOND 2 CYS B 206 CYS B 261 1555 1555 2.26 CISPEP 1 SER A 14 PRO A 15 0 0.11 CISPEP 2 GLU A 166 PRO A 167 0 -0.06 CISPEP 3 LYS A 204 PRO A 205 0 0.79 CISPEP 4 SER B 14 PRO B 15 0 -0.60 CISPEP 5 GLU B 166 PRO B 167 0 -0.42 CISPEP 6 LYS B 204 PRO B 205 0 0.50 SITE 1 AC1 7 GLY B 141 SER B 142 THR B 143 GLU B 193 SITE 2 AC1 7 DNQ B 364 HOH B 476 HOH B 493 SITE 1 AC2 14 GLU B 13 TYR B 16 TYR B 61 PRO B 89 SITE 2 AC2 14 LEU B 90 THR B 91 ARG B 96 THR B 174 SITE 3 AC2 14 GLU B 193 MET B 196 TYR B 220 SO4 B 366 SITE 4 AC2 14 HOH B 484 HOH B 493 SITE 1 AC3 12 GLU A 13 TYR A 61 PRO A 89 LEU A 90 SITE 2 AC3 12 THR A 91 ARG A 96 THR A 174 GLU A 193 SITE 3 AC3 12 THR A 195 MET A 196 TYR A 220 HOH A 488 CRYST1 62.153 93.703 97.369 90.00 90.00 90.00 P 21 21 21 8 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 0.016089 0.000000 0.000000 0.00000 SCALE2 0.000000 0.010672 0.000000 0.00000 SCALE3 0.000000 0.000000 0.010270 0.00000