1SYI - Header Asymmetric Unit

HEADER MEMBRANE PROTEIN 01-APR-04 1SYI

TITLE X-RAY STRUCTURE OF THE Y702F MUTANT OF THE GLUR2 LIGAND- TITLE 2 BINDING CORE (S1S2J) IN COMPLEX WITH (S)-CPW399 AT 2.1 A TITLE 3 RESOLUTION.

COMPND MOL_ID: 1; COMPND 2 MOLECULE: GLUTAMATE RECEPTOR 2; COMPND 3 CHAIN: A, B; COMPND 4 FRAGMENT: GLUR2-FLOP LIGAND-BINDING CORE (S1S2J); COMPND 5 SYNONYM: GLUR-2, GLUR-B, GLUR-K2, GLUTAMATE RECEPTOR COMPND 6 IONOTROPIC, AMPA 2; COMPND 7 ENGINEERED: YES; COMPND 8 MUTATION: 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: GRIA2, GLUR2; 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: PET30B

KEYWDS IONOTROPIC GLUTAMATE RECEPTOR GLUR2, LIGAND-BINDING CORE, KEYWDS 2 AGONIST COMPLEX, MUTANT, MEMBRANE PROTEIN

EXPDTA X-RAY DIFFRACTION

AUTHOR A.FRANDSEN,D.S.PICKERING,B.VESTERGAARD,C.KASPER,B.B.NIELSEN, AUTHOR 2 J.R.GREENWOOD,G.CAMPIANI,M.GAJHEDE,A.SCHOUSBOE,J.S.KASTRUP

REVDAT 2 24-FEB-09 1SYI 1 VERSN REVDAT 1 22-MAR-05 1SYI 0

JRNL AUTH A.FRANDSEN,D.S.PICKERING,B.VESTERGAARD,C.KASPER, JRNL AUTH 2 B.B.NIELSEN,J.R.GREENWOOD,G.CAMPIANI,C.FATTORUSSO, JRNL AUTH 3 M.GAJHEDE,A.SCHOUSBOE,J.S.KASTRUP JRNL TITL TYR702 IS AN IMPORTANT DETERMINANT OF AGONIST JRNL TITL 2 BINDING AND DOMAIN CLOSURE OF THE LIGAND-BINDING JRNL TITL 3 CORE OF GLUR2. JRNL REF MOL.PHARMACOL. V. 67 703 2005 JRNL REFN ISSN 0026-895X JRNL PMID 15591246 JRNL DOI 10.1124/MOL.104.002931

REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH A.HOGNER,J.S.KASTRUP,R.JIN,T.LILJEFORS,M.L.MAYER, REMARK 1 AUTH 2 J.EGEBJERG,I.LARSEN,E.GOUAUX REMARK 1 TITL STRUCTURAL BASIS FOR AMPA RECEPTOR ACTIVATION AND REMARK 1 TITL 2 LIGAND SELECTIVITY: CRYSTAL STRUCTURES OF FIVE REMARK 1 TITL 3 AGONIST COMPLEXES WITH THE GLUR2 LIGAND BINDING REMARK 1 TITL 4 CORE. REMARK 1 REF J.MOL.BIOL. V. 322 93 2002 REMARK 1 REFN ISSN 0022-2836 REMARK 1 DOI 10.1016/S0022-2836(02)00650-2 REMARK 1 REFERENCE 2 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 REMARK 1 TITL 3 STRUCTURES OF THE 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 1 REFERENCE 3 REMARK 1 AUTH G.Q.CHEN,R.SUN,R.JIN,E.GOUAUX REMARK 1 TITL PROBING THE LIGAND BINDING DOMAIN OF THE GLUR2 REMARK 1 TITL 2 RECEPTOR BY PROTEOLYSIS AND DELETION MUTAGENESIS REMARK 1 TITL 3 DEFINES DOMAIN BOUNDARIES AND YIELDS A REMARK 1 TITL 4 CRYSTALLIZABLE CONSTRUCT. REMARK 1 REF PROTEIN SCI. V. 7 2623 1998 REMARK 1 REFN ISSN 0961-8368

REMARK 2 REMARK 2 RESOLUTION. 2.10 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) : 2.10 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 19.42 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : 1812154.000 REMARK 3 DATA CUTOFF LOW (ABS(F)) : 0.0000 REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 92.3 REMARK 3 NUMBER OF REFLECTIONS : 28365 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) : 0.206 REMARK 3 FREE R VALUE : 0.254 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 2.500 REMARK 3 FREE R VALUE TEST SET COUNT : 710 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : 0.010 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) : 2.10 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.23 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 91.50 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 4560 REMARK 3 BIN R VALUE (WORKING SET) : 0.2350 REMARK 3 BIN FREE R VALUE : 0.2880 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 2.30 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 108 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : 0.028 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 4050 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 34 REMARK 3 SOLVENT ATOMS : 372 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 23.80 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 24.70 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : -2.66000 REMARK 3 B22 (A**2) : -2.24000 REMARK 3 B33 (A**2) : 4.90000 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) : 0.24 REMARK 3 ESD FROM SIGMAA (A) : 0.21 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) : 0.31 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.31 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.006 REMARK 3 BOND ANGLES (DEGREES) : 1.20 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 21.90 REMARK 3 IMPROPER ANGLES (DEGREES) : 0.75 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) : 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 BULK SOLVENT MODELING. REMARK 3 METHOD USED : FLAT MODEL REMARK 3 KSOL : 0.37 REMARK 3 BSOL : 53.50 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: RESIDUES 1-2 AND 262-263 WERE NOT REMARK 3 LOCATED IN THE ELECTRON DENSITY MAP.

REMARK 4 REMARK 4 1SYI COMPLIES WITH FORMAT V. 3.15, 01-DEC-08

REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 13-APR-04. REMARK 100 THE RCSB ID CODE IS RCSB022092.

REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 28-NOV-02 REMARK 200 TEMPERATURE (KELVIN) : 110 REMARK 200 PH : 6.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : EMBL/DESY, HAMBURG REMARK 200 BEAMLINE : X11 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.8111 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD 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 : 28467 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.100 REMARK 200 RESOLUTION RANGE LOW (A) : 25.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : -3.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 92.3 REMARK 200 DATA REDUNDANCY : 3.200 REMARK 200 R MERGE (I) : 0.08600 REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 10.3000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.10 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.18 REMARK 200 COMPLETENESS FOR SHELL (%) : 90.2 REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : 0.34700 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 <I/SIGMA(I)> FOR SHELL : 3.300 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: PDB ENTRY 1SYH REMARK 200 REMARK 200 REMARK: NULL

REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 47.00 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.31 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PEG8000, CACODYLATE, (NH4)2SO4, PH REMARK 280 6.5, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 280K

REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 41 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,-Y,Z+1/2 REMARK 290 3555 -Y,X,Z+1/4 REMARK 290 4555 Y,-X,Z+3/4 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 118.70050 REMARK 290 SMTRY1 3 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 59.35025 REMARK 290 SMTRY1 4 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY2 4 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 178.05075 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 -2 REMARK 465 ALA A -1 REMARK 465 GLY A 259 REMARK 465 SER A 260 REMARK 465 GLY B -2 REMARK 465 ALA B -1 REMARK 465 GLY B 259 REMARK 465 SER B 260

REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS REMARK 500 REMARK 500 THE FOLLOWING ATOMS THAT ARE RELATED BY CRYSTALLOGRAPHIC REMARK 500 SYMMETRY ARE IN CLOSE CONTACT. AN ATOM LOCATED WITHIN 0.15 REMARK 500 ANGSTROMS OF A SYMMETRY RELATED ATOM IS ASSUMED TO BE ON A REMARK 500 SPECIAL POSITION AND IS, THEREFORE, LISTED IN REMARK 375 REMARK 500 INSTEAD OF REMARK 500. ATOMS WITH NON-BLANK ALTERNATE REMARK 500 LOCATION INDICATORS ARE NOT INCLUDED IN THE CALCULATIONS. REMARK 500 REMARK 500 DISTANCE CUTOFF: REMARK 500 2.2 ANGSTROMS FOR CONTACTS NOT INVOLVING HYDROGEN ATOMS REMARK 500 1.6 ANGSTROMS FOR CONTACTS INVOLVING HYDROGEN ATOMS REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI SSYMOP DISTANCE REMARK 500 NZ LYS A 66 O HOH A 534 1565 2.06 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 PRO A 117 58.63 -68.25 REMARK 500 LYS A 126 30.17 -94.74 REMARK 500 SER A 137 126.93 69.24 REMARK 500 PRO A 202 21.21 -79.41 REMARK 500 LYS B 126 30.42 -97.67 REMARK 500 PRO B 202 8.17 -67.94 REMARK 500 REMARK 500 REMARK: NULL

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 B 557 DISTANCE = 5.52 ANGSTROMS REMARK 525 HOH A 564 DISTANCE = 6.30 ANGSTROMS

REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CPW A 381 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CPW B 382

REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1FTJ RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF THE GLUR2 LIGAND BINDING CORE (S1S2J) REMARK 900 IN COMPLEX WITH GLUTAMATE AT 1.9 RESOLUTION REMARK 900 RELATED ID: 1FTM RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF THE GLUR2 LIGAND BINDING CORE (S1S2J) REMARK 900 IN COMPLEX WITH AMPA AT 1.7 RESOLUTION REMARK 900 RELATED ID: 1FW0 RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF THE GLUR2 LIGAND BINDING CORE (S1S2J) REMARK 900 IN COMPLEX WITH KAINATE AT 2.0 A RESOLUTION REMARK 900 RELATED ID: 1GR2 RELATED DB: PDB REMARK 900 STRUCTURE OF A GLUTAMATE RECEPTOR LIGAND BINDING CORE REMARK 900 (GLUR2) COMPLEXED WITH KAINATE REMARK 900 RELATED ID: 1M5B RELATED DB: PDB REMARK 900 X-RAY STRUCTURE OF THE GLUR2 LIGAND BINDING CORE (S1S2J) IN REMARK 900 COMPLEX WITH 2-ME-TET-AMPA AT 1.85 A REMARK 900 RELATED ID: 1M5C RELATED DB: PDB REMARK 900 X-RAY STRUCTURE OF THE GLUR2 LIGAND BINDING CORE (S1S2J) IN REMARK 900 COMPLEX WITH BR-HIBO AT 1.65 A RESOLUTION REMARK 900 RELATED ID: 1M5E RELATED DB: PDB REMARK 900 X-RAY STRUCTURE OF THE GLUR2 LIGAND BINDING CORE (S1S2J) IN REMARK 900 COMPLEX WITH ACPA AT 1.46 A RESOLUTION REMARK 900 RELATED ID: 1MQD RELATED DB: PDB REMARK 900 X-RAY STRUCTURE OF THE GLUR2 LIGAND-BINDING CORE (S1S2J) IN REMARK 900 COMPLEX WITH (S)-DES-ME-AMPA AT 1.46 A RESOLUTION. REMARK 900 CRYSTALLIZATION IN THE PRESENCE OF LITHIUM SULFATE. REMARK 900 RELATED ID: 1MQG RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF THE GLUR2 LIGAND BINDING CORE (S1S2J) REMARK 900 IN COMPLEX WITH IODO-WILLARDIINE AT 2.15 A RESOLUTION REMARK 900 RELATED ID: 1NNP RELATED DB: PDB REMARK 900 X-RAY STRUCTURE OF THE GLUR2 LIGAND-BINDING CORE (S1S2J) IN REMARK 900 COMPLEX WITH (S)-ATPA AT 1.9 A RESOLUTION REMARK 900 RELATED ID: 1SYH RELATED DB: PDB REMARK 900 X-RAY STRUCTURE OF THE GLUR2 LIGAND-BINDING CORE (S1S2J) IN REMARK 900 COMPLEX WITH (S)-CPW399 AT 1.85 A RESOLUTION.

REMARK 999 REMARK 999 SEQUENCE TRANSMEMBRANE REGIONS WERE GENETICALLY REMOVED AND REMARK 999 REPLACED WITH A GLY-THR LINKER (RESIDUES 115 AND 116)

DBREF 1SYI A 0 260 UNP P19491 GRIA2_RAT 413 796 DBREF 1SYI B 0 260 UNP P19491 GRIA2_RAT 413 796

SEQADV 1SYI GLY A -2 UNP P19491 CLONING ARTIFACT SEQADV 1SYI ALA A -1 UNP P19491 CLONING ARTIFACT SEQADV 1SYI GLY A 115 UNP P19491 SEE REMARK 999 SEQADV 1SYI THR A 116 UNP P19491 SEE REMARK 999 SEQADV 1SYI GLY B -2 UNP P19491 CLONING ARTIFACT SEQADV 1SYI ALA B -1 UNP P19491 CLONING ARTIFACT SEQADV 1SYI GLY B 115 UNP P19491 SEE REMARK 999 SEQADV 1SYI THR B 116 UNP P19491 SEE REMARK 999 SEQADV 1SYI PHE A 187 UNP P19491 TYR 723 ENGINEERED SEQADV 1SYI PHE B 187 UNP P19491 TYR 723 ENGINEERED

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 PHE 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 PHE 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 CPW A 381 17 HET CPW B 382 17

HETNAM CPW (S)-2-AMINO-3-(1,3,5,7-PENTAHYDRO-2,4-DIOXO- HETNAM 2 CPW CYCLOPENTA[E]PYRIMIDIN-1-YL) PROIONIC ACID

FORMUL 3 CPW 2(C10 H13 N3 O4) FORMUL 5 HOH *372(H2 O)

HELIX 1 1 ASN A 19 LEU A 23 5 5 HELIX 2 2 GLU A 24 GLU A 27 5 4 HELIX 3 3 GLY A 31 GLY A 45 1 15 HELIX 4 4 ASN A 69 TYR A 77 1 9 HELIX 5 5 THR A 90 GLU A 95 1 6 HELIX 6 6 SER A 120 LYS A 126 1 7 HELIX 7 7 GLY A 138 SER A 147 1 10 HELIX 8 8 ILE A 149 ALA A 162 1 14 HELIX 9 9 THR A 170 SER A 181 1 12 HELIX 10 10 SER A 191 GLN A 199 1 9 HELIX 11 11 LEU A 227 GLN A 241 1 15 HELIX 12 12 GLY A 242 TYR A 253 1 12 HELIX 13 13 ASN B 19 LEU B 23 5 5 HELIX 14 14 GLU B 24 GLU B 27 5 4 HELIX 15 15 GLY B 31 GLY B 45 1 15 HELIX 16 16 ASN B 69 TYR B 77 1 9 HELIX 17 17 THR B 90 GLU B 95 1 6 HELIX 18 18 SER B 120 LYS B 126 1 7 HELIX 19 19 GLY B 138 SER B 147 1 10 HELIX 20 20 ILE B 149 ALA B 162 1 14 HELIX 21 21 THR B 170 LYS B 180 1 11 HELIX 22 22 SER B 191 GLN B 199 1 9 HELIX 23 23 LEU B 227 GLN B 241 1 15 HELIX 24 24 GLY B 242 TYR B 253 1 12

SHEET 1 A 3 TYR A 48 ILE A 52 0 SHEET 2 A 3 VAL A 3 THR A 7 1 N VAL A 5 O LYS A 49 SHEET 3 A 3 ILE A 82 ALA A 83 1 O ILE A 82 N THR A 6 SHEET 1 B 2 MET A 15 MET A 16 0 SHEET 2 B 2 TYR A 29 GLU A 30 -1 O GLU A 30 N MET A 15 SHEET 1 C 2 ILE A 97 PHE A 99 0 SHEET 2 C 2 ALA A 220 PRO A 222 -1 O THR A 221 N ASP A 98 SHEET 1 D 2 MET A 104 LEU A 106 0 SHEET 2 D 2 LYS A 215 TYR A 217 -1 O LYS A 215 N LEU A 106 SHEET 1 E 4 ALA A 131 GLY A 133 0 SHEET 2 E 4 TYR A 185 GLU A 190 1 O ALA A 186 N ALA A 131 SHEET 3 E 4 ILE A 108 LYS A 113 -1 N SER A 109 O LEU A 189 SHEET 4 E 4 THR A 205 VAL A 208 -1 O MET A 206 N ILE A 112 SHEET 1 F 3 TYR B 48 ILE B 52 0 SHEET 2 F 3 VAL B 3 THR B 7 1 N THR B 7 O THR B 51 SHEET 3 F 3 ILE B 82 ALA B 83 1 O ILE B 82 N THR B 6 SHEET 1 G 2 MET B 15 MET B 16 0 SHEET 2 G 2 TYR B 29 GLU B 30 -1 O GLU B 30 N MET B 15 SHEET 1 H 2 ILE B 97 PHE B 99 0 SHEET 2 H 2 ALA B 220 PRO B 222 -1 O THR B 221 N ASP B 98 SHEET 1 I 2 MET B 104 LEU B 106 0 SHEET 2 I 2 LYS B 215 TYR B 217 -1 O LYS B 215 N LEU B 106 SHEET 1 J 4 ALA B 131 GLY B 133 0 SHEET 2 J 4 TYR B 185 GLU B 190 1 O ALA B 186 N ALA B 131 SHEET 3 J 4 ILE B 108 LYS B 113 -1 N SER B 109 O LEU B 189 SHEET 4 J 4 THR B 205 VAL B 208 -1 O VAL B 208 N ILE B 110

SSBOND 1 CYS A 203 CYS A 258 1555 1555 2.03 SSBOND 2 CYS B 203 CYS B 258 1555 1555 2.03

CISPEP 1 SER A 11 PRO A 12 0 -0.26 CISPEP 2 GLU A 163 PRO A 164 0 -0.01 CISPEP 3 LYS A 201 PRO A 202 0 0.05 CISPEP 4 SER B 11 PRO B 12 0 0.08 CISPEP 5 GLU B 163 PRO B 164 0 -0.05 CISPEP 6 LYS B 201 PRO B 202 0 -0.47

SITE 1 AC1 14 TYR A 58 PRO A 86 LEU A 87 THR A 88 SITE 2 AC1 14 ARG A 93 LEU A 135 GLY A 138 SER A 139 SITE 3 AC1 14 THR A 140 LEU A 189 GLU A 190 MET A 193 SITE 4 AC1 14 TYR A 217 HOH A 410 SITE 1 AC2 12 TYR B 58 PRO B 86 LEU B 87 THR B 88 SITE 2 AC2 12 ARG B 93 LEU B 135 GLY B 138 SER B 139 SITE 3 AC2 12 THR B 140 LEU B 189 GLU B 190 TYR B 217

CRYST1 47.719 47.719 237.401 90.00 90.00 90.00 P 41 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 0.020956 0.000000 0.000000 0.00000

SCALE2 0.000000 0.020956 0.000000 0.00000

SCALE3 0.000000 0.000000 0.004212 0.00000