HEADER MEMBRANE PROTEIN 02-APR-02 1LB8 TITLE CRYSTAL STRUCTURE OF THE NON-DESENSITIZING GLUR2 LIGAND BINDING CORE TITLE 2 MUTANT (S1S2J-L483Y) IN COMPLEX WITH AMPA AT 2.3 RESOLUTION COMPND MOL_ID: 1; COMPND 2 MOLECULE: GLUTAMATE RECEPTOR 2; COMPND 3 CHAIN: A, B; COMPND 4 FRAGMENT: LIGAND-BINDING CORE (FLOP); COMPND 5 SYNONYM: GLUR-2, GLUR-B, GLUR-K2, GLUTAMATE RECEPTOR IONOTROPIC AMPA COMPND 6 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: 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: PETGQ KEYWDS AMPA RECEPTOR, GLUR2, S1S2, LIGAND-BINDING CORE, NON-DESENSITIZING, KEYWDS 2 POINT MUTATION, L483Y, AGONIST, MEMBRANE PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR Y.SUN,R.OLSON,M.HORNING,N.ARMSTRONG,M.MAYER,E.GOUAUX REVDAT 4 27-OCT-21 1LB8 1 REMARK SEQADV SHEET REVDAT 3 16-AUG-17 1LB8 1 SOURCE REMARK REVDAT 2 24-FEB-09 1LB8 1 VERSN REVDAT 1 05-JUN-02 1LB8 0 JRNL AUTH Y.SUN,R.OLSON,M.HORNING,N.ARMSTRONG,M.MAYER,E.GOUAUX JRNL TITL MECHANISM OF GLUTAMATE RECEPTOR DESENSITIZATION. JRNL REF NATURE V. 417 245 2002 JRNL REFN ISSN 0028-0836 JRNL PMID 12015593 JRNL DOI 10.1038/417245A REMARK 2 REMARK 2 RESOLUTION. 2.30 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) : 2.30 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 19.52 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : 1223530.540 REMARK 3 DATA CUTOFF LOW (ABS(F)) : 0.0000 REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 96.4 REMARK 3 NUMBER OF REFLECTIONS : 25055 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) : 0.218 REMARK 3 FREE R VALUE : 0.267 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 9.900 REMARK 3 FREE R VALUE TEST SET COUNT : 2483 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) : 2.30 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.44 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 90.80 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 3488 REMARK 3 BIN R VALUE (WORKING SET) : 0.2360 REMARK 3 BIN FREE R VALUE : 0.2980 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 9.60 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 372 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : 0.015 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 4011 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 26 REMARK 3 SOLVENT ATOMS : 226 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 21.90 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 22.90 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 5.63000 REMARK 3 B22 (A**2) : -3.65000 REMARK 3 B33 (A**2) : -1.98000 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) : 0.28 REMARK 3 ESD FROM SIGMAA (A) : 0.18 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) : 0.35 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.29 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.006 REMARK 3 BOND ANGLES (DEGREES) : 1.200 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 21.40 REMARK 3 IMPROPER ANGLES (DEGREES) : 0.790 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 : 0.35 REMARK 3 BSOL : 28.62 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 : AMPA.PAR REMARK 3 PARAMETER FILE 3 : WATER_REP.PARAM REMARK 3 PARAMETER FILE 4 : ION.PARAM REMARK 3 PARAMETER FILE 5 : NULL REMARK 3 TOPOLOGY FILE 1 : PROTEIN.TOP REMARK 3 TOPOLOGY FILE 2 : AMPA.TOP REMARK 3 TOPOLOGY FILE 3 : WATER.TOP REMARK 3 TOPOLOGY FILE 4 : ION.TOP REMARK 3 TOPOLOGY FILE 5 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1LB8 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 04-APR-02. REMARK 100 THE DEPOSITION ID IS D_1000015808. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 30-MAY-01 REMARK 200 TEMPERATURE (KELVIN) : 110.0 REMARK 200 PH : 5.0 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 REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL 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 : 25961 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.300 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 (%) : 99.6 REMARK 200 DATA REDUNDANCY : NULL REMARK 200 R MERGE (I) : NULL 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) : 2.30 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.38 REMARK 200 COMPLETENESS FOR SHELL (%) : 98.8 REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : NULL 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: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: AMORE REMARK 200 STARTING MODEL: PDB ENTRY 1FTM REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 49.13 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.42 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PEG 8000, AMMONIUM SULFATE, SODIUM REMARK 280 ACETATE, PH 5.0, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE REMARK 280 277.0K 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 49.28000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 60.68800 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 49.28000 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 60.68800 REMARK 290 SMTRY3 4 0.000000 0.000000 -1.000000 0.00000 REMARK 290 REMARK 290 REMARK: NULL REMARK 300 REMARK 300 BIOMOLECULE: 1, 2 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: MONOMERIC 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 REMARK 350 BIOMOLECULE: 2 REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: MONOMERIC REMARK 350 APPLY THE FOLLOWING TO CHAINS: 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 SER A 263 REMARK 465 GLY B 1 REMARK 465 ALA B 2 REMARK 465 ASN B 3 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 4 CG CD CE NZ REMARK 470 LYS A 21 CG CD CE NZ REMARK 470 ASN A 22 CB CG OD1 ND2 REMARK 470 ALA A 66 CB REMARK 470 ASP A 67 CB CG OD1 OD2 REMARK 470 LYS A 69 CG CD CE NZ REMARK 470 ILE A 152 CD1 REMARK 470 ARG A 172 CG CD NE CZ NH1 NH2 REMARK 470 LYS A 258 CG CD CE NZ REMARK 470 LYS B 4 CG CD CE NZ REMARK 470 LYS B 21 CG CD CE NZ REMARK 470 LYS B 50 CG CD CE NZ REMARK 470 ALA B 66 CB REMARK 470 LYS B 183 CG CD CE NZ REMARK 470 LYS B 258 CB 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 44.02 -98.83 REMARK 500 ASP A 67 -76.79 96.16 REMARK 500 ASN A 72 -166.04 -110.85 REMARK 500 LEU A 109 -174.13 -170.47 REMARK 500 TRP A 255 -60.34 -104.13 REMARK 500 LEU B 109 -176.50 -170.26 REMARK 500 TRP B 255 -73.46 -113.34 REMARK 500 LYS B 258 43.62 117.01 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 AMQ A 427 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE AMQ B 428 REMARK 999 REMARK 999 SEQUENCE REMARK 999 THE NATIVE GLUR-2 IS A MEMBRANE PROTEIN. THE PROTEIN REMARK 999 CRYSTALLIZED BY THE AUTHOR IS THE EXTRACELLULAR LIGAND REMARK 999 BINDING DOMAIN OF GLUR-2. TRANSMEMBRANE REGIONS WERE REMARK 999 GENETICALLY REMOVED AND REPLACED WITH A GLY-THR LINKER. REMARK 999 THE SEQUENCE, AS A RESULT, MATCHES DISCONTINUOUSLY REMARK 999 WITH THE REFERENCE DATABASE. DBREF 1LB8 A 3 117 UNP P19491 GRIA2_RAT 413 527 DBREF 1LB8 A 120 263 UNP P19491 GRIA2_RAT 653 796 DBREF 1LB8 B 3 117 UNP P19491 GRIA2_RAT 413 527 DBREF 1LB8 B 120 263 UNP P19491 GRIA2_RAT 653 796 SEQADV 1LB8 GLY A 1 UNP P19491 CLONING ARTIFACT SEQADV 1LB8 ALA A 2 UNP P19491 CLONING ARTIFACT SEQADV 1LB8 TYR A 94 UNP P19491 LEU 504 ENGINEERED MUTATION SEQADV 1LB8 GLY A 118 UNP P19491 LINKER SEQADV 1LB8 THR A 119 UNP P19491 LINKER SEQADV 1LB8 GLY B 1 UNP P19491 CLONING ARTIFACT SEQADV 1LB8 ALA B 2 UNP P19491 CLONING ARTIFACT SEQADV 1LB8 TYR B 94 UNP P19491 LEU 504 ENGINEERED MUTATION SEQADV 1LB8 GLY B 118 UNP P19491 LINKER SEQADV 1LB8 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 TYR 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 TYR 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 AMQ A 427 13 HET AMQ B 428 13 HETNAM AMQ (S)-ALPHA-AMINO-3-HYDROXY-5-METHYL-4-ISOXAZOLEPROPIONIC HETNAM 2 AMQ ACID HETSYN AMQ AMPA FORMUL 3 AMQ 2(C7 H10 N2 O4) FORMUL 5 HOH *226(H2 O) HELIX 1 1 GLU A 27 GLU A 30 5 4 HELIX 2 2 GLY A 34 GLY A 48 1 15 HELIX 3 3 ASN A 72 TYR A 80 1 9 HELIX 4 4 THR A 93 GLU A 98 1 6 HELIX 5 5 SER A 123 LYS A 129 1 7 HELIX 6 6 GLY A 141 SER A 150 1 10 HELIX 7 8 THR A 173 LYS A 183 1 11 HELIX 8 9 SER A 194 GLU A 201 1 8 HELIX 9 10 LEU A 230 GLN A 244 1 15 HELIX 10 11 GLY A 245 TRP A 255 1 11 HELIX 11 12 ASN B 22 LEU B 26 5 5 HELIX 12 13 GLU B 27 GLU B 30 5 4 HELIX 13 14 GLY B 34 GLY B 48 1 15 HELIX 14 15 ASN B 72 TYR B 80 1 9 HELIX 15 16 THR B 93 GLU B 98 1 6 HELIX 16 17 SER B 123 LYS B 129 1 7 HELIX 17 18 GLY B 141 SER B 150 1 10 HELIX 18 19 ILE B 152 ALA B 165 1 14 HELIX 19 21 SER B 194 GLN B 202 1 9 HELIX 20 22 LEU B 230 GLN B 244 1 15 HELIX 21 23 GLY B 245 TRP B 255 1 11 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 ALA A 189 N ALA A 134 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 SHEET 1 F 2 THR B 5 THR B 10 0 SHEET 2 F 2 ILE B 85 ALA B 86 1 O ILE B 85 N THR B 9 SHEET 1 G 2 MET B 18 MET B 19 0 SHEET 2 G 2 TYR B 32 GLU B 33 -1 O GLU B 33 N MET B 18 SHEET 1 H 2 ILE B 100 PHE B 102 0 SHEET 2 H 2 ALA B 223 PRO B 225 -1 O THR B 224 N ASP B 101 SHEET 1 I 2 MET B 107 LEU B 109 0 SHEET 2 I 2 LYS B 218 TYR B 220 -1 O LYS B 218 N LEU B 109 SHEET 1 J 4 ALA B 134 THR B 137 0 SHEET 2 J 4 TYR B 188 GLU B 193 1 O ALA B 189 N ALA B 134 SHEET 3 J 4 ILE B 111 LYS B 116 -1 N MET B 114 O TYR B 190 SHEET 4 J 4 THR B 208 VAL B 211 -1 O MET B 209 N ILE B 115 SSBOND 1 CYS A 206 CYS A 261 1555 1555 2.03 SSBOND 2 CYS B 206 CYS B 261 1555 1555 2.03 CISPEP 1 SER A 14 PRO A 15 0 -0.29 CISPEP 2 GLU A 166 PRO A 167 0 -0.21 CISPEP 3 LYS A 204 PRO A 205 0 0.13 CISPEP 4 SER B 14 PRO B 15 0 -0.16 CISPEP 5 GLU B 166 PRO B 167 0 -0.09 CISPEP 6 LYS B 204 PRO B 205 0 -0.03 SITE 1 AC1 12 TYR A 61 PRO A 89 THR A 91 ARG A 96 SITE 2 AC1 12 GLY A 141 SER A 142 THR A 143 GLU A 193 SITE 3 AC1 12 MET A 196 TYR A 220 HOH A 432 HOH A 434 SITE 1 AC2 13 TYR B 61 PRO B 89 LEU B 90 THR B 91 SITE 2 AC2 13 ARG B 96 GLY B 141 SER B 142 THR B 143 SITE 3 AC2 13 GLU B 193 MET B 196 TYR B 220 HOH B 436 SITE 4 AC2 13 HOH B 446 CRYST1 98.560 121.376 47.342 90.00 90.00 90.00 P 21 21 2 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 0.010146 0.000000 0.000000 0.00000 SCALE2 0.000000 0.008239 0.000000 0.00000 SCALE3 0.000000 0.000000 0.021123 0.00000 MASTER 300 0 2 21 25 0 7 6 0 0 0 42 END