HEADER MEMBRANE PROTEIN 09-JUL-02 1M5C TITLE X-RAY STRUCTURE OF THE GLUR2 LIGAND BINDING CORE (S1S2J) IN COMPLEX TITLE 2 WITH BR-HIBO AT 1.65 A RESOLUTION COMPND MOL_ID: 1; COMPND 2 MOLECULE: GLUTAMATE RECEPTOR 2; COMPND 3 CHAIN: A; COMPND 4 FRAGMENT: FLOP 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; 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, AGONIST KEYWDS 2 COMPLEX, MEMBRANE PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR A.HOGNER,J.S.KASTRUP,R.JIN,T.LILJEFORS,M.L.MAYER,J.EGEBJERG, AUTHOR 2 I.K.LARSEN,E.GOUAUX REVDAT 4 16-AUG-17 1M5C 1 SOURCE REMARK REVDAT 3 26-NOV-14 1M5C 1 REMARK VERSN REVDAT 2 24-FEB-09 1M5C 1 VERSN REVDAT 1 18-SEP-02 1M5C 0 JRNL AUTH A.HOGNER,J.S.KASTRUP,R.JIN,T.LILJEFORS,M.L.MAYER,J.EGEBJERG, JRNL AUTH 2 I.K.LARSEN,E.GOUAUX JRNL TITL STRUCTURAL BASIS FOR AMPA RECEPTOR ACTIVATION AND LIGAND JRNL TITL 2 SELECTIVITY: CRYSTAL STRUCTURES OF FIVE AGONIST COMPLEXES JRNL TITL 3 WITH THE GLUR2 LIGAND-BINDING CORE JRNL REF J.MOL.BIOL. V. 322 93 2002 JRNL REFN ISSN 0022-2836 JRNL PMID 12215417 JRNL DOI 10.1016/S0022-2836(02)00650-2 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 1 REFERENCE 2 REMARK 1 AUTH Y.SUN,R.OLSON,M.HORNING,N.ARMSTRONG,M.MAYER,E.GOUAUX REMARK 1 TITL MECHANISM OF GLUTAMATE RECEPTOR DESENSITIZATION. REMARK 1 REF NATURE V. 417 245 2002 REMARK 1 REFN ISSN 0028-0836 REMARK 1 DOI 10.1038/417245A REMARK 1 REFERENCE 3 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 MUTAGENESIS 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. 1.65 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CNS 1.0 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) : 1.65 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 19.50 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : 1082704.000 REMARK 3 DATA CUTOFF LOW (ABS(F)) : NULL REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 99.3 REMARK 3 NUMBER OF REFLECTIONS : 33121 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) : 0.192 REMARK 3 FREE R VALUE : 0.221 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 0.101 REMARK 3 FREE R VALUE TEST SET COUNT : 3340 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : 0.004 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) : 1.65 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.75 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 98.80 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 4818 REMARK 3 BIN R VALUE (WORKING SET) : 0.2620 REMARK 3 BIN FREE R VALUE : 0.2760 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 0.10 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 555 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : 0.012 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 2018 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 13 REMARK 3 SOLVENT ATOMS : 404 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 19.80 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 21.20 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 5.55000 REMARK 3 B22 (A**2) : 0.00000 REMARK 3 B33 (A**2) : 0.00000 REMARK 3 B12 (A**2) : -0.73000 REMARK 3 B13 (A**2) : -4.82000 REMARK 3 B23 (A**2) : 0.00000 REMARK 3 REMARK 3 ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM LUZZATI PLOT (A) : 0.18 REMARK 3 ESD FROM SIGMAA (A) : 0.14 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) : 0.21 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.16 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) : 22.00 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) : 1.000 ; 1.500 REMARK 3 MAIN-CHAIN ANGLE (A**2) : 1.450 ; 2.000 REMARK 3 SIDE-CHAIN BOND (A**2) : 1.980 ; 2.000 REMARK 3 SIDE-CHAIN ANGLE (A**2) : 2.980 ; 2.500 REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED : FLAT MODEL REMARK 3 KSOL : 0.34 REMARK 3 BSOL : 36.96 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 : NULL REMARK 3 TOPOLOGY FILE 1 : PROTEIN.TOP REMARK 3 TOPOLOGY FILE 2 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: RESIDUES 1-3 AND 262-263 WERE NOT REMARK 3 LOCATED IN THE ELECTRON DENSITY MAP. THE SIDE CHAINS OF THE REMARK 3 FOLLOWING RESIDUES ARE NOT FULLY DEFINED: LYS A21, GLU A30, LYS REMARK 3 A50, LYS A69, LYS A151 REMARK 4 REMARK 4 1M5C COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 11-JUL-02. REMARK 100 THE DEPOSITION ID IS D_1000016617. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 27-APR-00 REMARK 200 TEMPERATURE (KELVIN) : 110 REMARK 200 PH : 4.5 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 : BW7A REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.886 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 : 35035 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.650 REMARK 200 RESOLUTION RANGE LOW (A) : 20.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : -3.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.3 REMARK 200 DATA REDUNDANCY : 4.200 REMARK 200 R MERGE (I) : 0.05600 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 21.7000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.65 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.68 REMARK 200 COMPLETENESS FOR SHELL (%) : 95.1 REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : 0.53800 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 2.200 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 1M5B (S1S2J:2-ME-TET-AMPA, MOLECULE A). REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 46.79 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.31 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PEG 1450, LI2SO4, PHOSPHATE-CITRATE, REMARK 280 PH 4.5, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 279K 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 43.93900 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 32.00450 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 43.93900 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 32.00450 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 BIOLOGICAL ASSEMBLY IS A DIMER. THE DIMER OF CHAIN A REMARK 300 CAN BE GENERATED BY THE TWO FOLD AXIS: -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 87.87800 REMARK 350 BIOMT2 2 0.000000 -1.000000 0.000000 64.00900 REMARK 350 BIOMT3 2 0.000000 0.000000 1.000000 0.00000 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 709 LIES ON A SPECIAL POSITION. 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 GLY A 262 REMARK 465 SER A 263 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 32.07 -98.95 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 BRH A 611 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1FTJ RELATED DB: PDB REMARK 900 GLUR2 S1S2J IN COMPLEX WITH THE AGONIST GLUTAMATE. REMARK 900 RELATED ID: 1FTK RELATED DB: PDB REMARK 900 GLUR2 S1S2I IN COMPLEX WITH THE AGONIST KAINATE. REMARK 900 RELATED ID: 1FTO RELATED DB: PDB REMARK 900 GLUR2 S1S2J IN THE APO FORM. REMARK 900 RELATED ID: 1FWO RELATED DB: PDB REMARK 900 GLUR2 S1S2J IN COMPLEX WITH THE AGONIST KAINATE. REMARK 900 RELATED ID: 1FTM RELATED DB: PDB REMARK 900 GLUR2 S1S2J IN COMPLEX WITH THE AGONIST AMPA. REMARK 900 RELATED ID: 1FTL RELATED DB: PDB REMARK 900 GLUR2 S1S2J IN COMPLEX WITH THE ANTAGONIST DNQX. REMARK 900 RELATED ID: 1GR2 RELATED DB: PDB REMARK 900 GLUR2 S1S2I IN COMPLEX WITH THE AGONIST KAINATE. REMARK 900 RELATED ID: 1LB8 RELATED DB: PDB REMARK 900 NON-DESENSITIZING FORM OF GLUR2 S1S2J-L483Y IN COMPLEX WITH THE REMARK 900 AGONIST AMPA. REMARK 900 RELATED ID: 1LB9 RELATED DB: PDB REMARK 900 NON-DESENSITIZING FORM OF GLUR2 S1S2J-L483Y IN COMPLEX WITH THE REMARK 900 ANTAGONIST DNQX. REMARK 900 RELATED ID: 1M5B RELATED DB: PDB REMARK 900 X-RAY STRUCTURE OF THE GLUR2 LIGAND BINDING CORE (S1S2J) IN COMPLEX REMARK 900 WITH 2-ME-TET-AMPA AT 1.85 A RESOLUTION. REMARK 900 RELATED ID: 1M5D RELATED DB: PDB REMARK 900 X-RAY STRUCTURE OF THE GLUR2 LIGAND BINDING CORE (S1S2J-Y702F) IN REMARK 900 COMPLEX WITH BR-HIBO AT 1.73 A RESOLUTION REMARK 900 RELATED ID: 1M5E RELATED DB: PDB REMARK 900 X-RAY STRUCTURE OF THE GLUR2 LIGAND BINDING CORE (S1S2J) IN COMPLEX REMARK 900 WITH ACPA AT 1.46 A RESOLUTION REMARK 900 RELATED ID: 1M5F RELATED DB: PDB REMARK 900 X-RAY STRUCTURE OF THE GLUR2 LIGAND BINDING CORE (S1S2J-Y702F) IN REMARK 900 COMPLEX WITH ACPA AT 1.95 A RESOLUTION REMARK 999 REMARK 999 SEQUENCE REMARK 999 NATIVE GLUR2 IS A MEMBRANE PROTEIN. THE PROTEIN REMARK 999 CRYSTALLIZED IS THE EXTRACELLULAR LIGAND BINDING REMARK 999 DOMAIN OF GLUR2. TRANSMEMBRANE REGIONS WERE REMARK 999 GENETICALLY REMOVED AND REPLACED WITH A GLY-THR REMARK 999 LINKER (RESIDUES 118 AND 119). THEREFORE, THE REMARK 999 SEQUENCE MATCHES DISCONTINUOUSLY WITH THE REFERENCE REMARK 999 DATABASE (413-527, 653-796). RESIDUES GLY1 AND ALA2 REMARK 999 ARE CLONING ARTIFACTS. DBREF 1M5C A 3 117 UNP P19491 GRIA2_RAT 413 527 DBREF 1M5C A 120 263 UNP P19491 GRIA2_RAT 653 796 SEQADV 1M5C GLY A 1 UNP P19491 CLONING ARTIFACT SEQADV 1M5C ALA A 2 UNP P19491 CLONING ARTIFACT SEQADV 1M5C GLY A 118 UNP P19491 LINKER SEQADV 1M5C 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 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 HET BRH A 611 13 HETNAM BRH (S)-2-AMINO-3-(4-BROMO-3-HYDROXY-ISOXAZOL-5-YL) HETNAM 2 BRH PROPIONIC ACID HETSYN BRH BR-HIBO FORMUL 2 BRH C6 H7 BR N2 O4 FORMUL 3 HOH *404(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 GLU A 201 1 8 HELIX 11 11 LEU A 230 GLN A 244 1 15 HELIX 12 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 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 SSBOND 1 CYS A 206 CYS A 261 1555 1555 2.03 CISPEP 1 SER A 14 PRO A 15 0 -0.31 CISPEP 2 GLU A 166 PRO A 167 0 -0.21 CISPEP 3 LYS A 204 PRO A 205 0 0.30 SITE 1 AC1 17 GLU A 13 TYR A 61 PRO A 89 LEU A 90 SITE 2 AC1 17 THR A 91 ARG A 96 GLY A 141 SER A 142 SITE 3 AC1 17 THR A 143 THR A 174 LEU A 192 GLU A 193 SITE 4 AC1 17 TYR A 220 HOH A 617 HOH A 634 HOH A 637 SITE 5 AC1 17 HOH A 751 CRYST1 87.878 64.009 48.032 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 0.011379 0.000000 0.000000 0.00000 SCALE2 0.000000 0.015623 0.000000 0.00000 SCALE3 0.000000 0.000000 0.020819 0.00000