HEADER MEMBRANE PROTEIN 25-SEP-08 3EN3 TITLE CRYSTAL STRUCTURE OF THE GLUR4 LIGAND-BINDING DOMAIN IN COMPLEX WITH TITLE 2 KAINATE COMPND MOL_ID: 1; COMPND 2 MOLECULE: GLUTAMATE RECEPTOR 4,GLUTAMATE RECEPTOR; COMPND 3 CHAIN: A; COMPND 4 FRAGMENT: LIGAND BINDING DOMAIN (UNP RESIDUES 416-528 AND 654-958); COMPND 5 SYNONYM: GLUR-4, GLUR4, GLUR-D, GLUTAMATE RECEPTOR IONOTROPIC, AMPA COMPND 6 4, AMPA-SELECTIVE GLUTAMATE RECEPTOR 4; COMPND 7 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: RATTUS NORVEGICUS; SOURCE 3 ORGANISM_COMMON: RAT; SOURCE 4 ORGANISM_TAXID: 10116; SOURCE 5 STRAIN: SPRAGUE-DAWLEY; SOURCE 6 GENE: GLUR4,GLUTAMATE RECEPTOR; SOURCE 7 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 8 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 9 EXPRESSION_SYSTEM_STRAIN: XJB(DE3); SOURCE 10 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 11 EXPRESSION_SYSTEM_PLASMID: PET16-B KEYWDS GLUR4, AMPA RECEPTOR, LIGAND-GATED ION CHANNEL, LIGAND-BINDING KEYWDS 2 DOMAIN, KAINATE, CELL JUNCTION, CELL MEMBRANE, GLYCOPROTEIN, ION KEYWDS 3 TRANSPORT, IONIC CHANNEL, LIPOPROTEIN, MEMBRANE PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR A.GILL,D.R.MADDEN REVDAT 4 26-JUL-17 3EN3 1 SOURCE REMARK REVDAT 3 02-APR-14 3EN3 1 SOURCE REVDAT 2 13-JUL-11 3EN3 1 VERSN REVDAT 1 19-MAY-09 3EN3 0 JRNL AUTH A.GILL,A.BIRDSEY-BENSON,B.L.JONES,L.P.HENDERSON,D.R.MADDEN JRNL TITL CORRELATING AMPA RECEPTOR ACTIVATION AND CLEFT CLOSURE JRNL TITL 2 ACROSS SUBUNITS: CRYSTAL STRUCTURES OF THE GLUR4 JRNL TITL 3 LIGAND-BINDING DOMAIN IN COMPLEX WITH FULL AND PARTIAL JRNL TITL 4 AGONISTS JRNL REF BIOCHEMISTRY V. 47 13831 2008 JRNL REFN ISSN 0006-2960 JRNL PMID 19102704 JRNL DOI 10.1021/BI8013196 REMARK 2 REMARK 2 RESOLUTION. 2.43 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC 5.2.0019 REMARK 3 AUTHORS : MURSHUDOV,VAGIN,DODSON REMARK 3 REMARK 3 REFINEMENT TARGET : ENGH & HUBER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.43 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 11.95 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : NULL REMARK 3 NUMBER OF REFLECTIONS : 10025 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 + TEST SET) : 0.159 REMARK 3 R VALUE (WORKING SET) : 0.156 REMARK 3 FREE R VALUE : 0.219 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.000 REMARK 3 FREE R VALUE TEST SET COUNT : 502 REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : 20 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 2.43 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.49 REMARK 3 REFLECTION IN BIN (WORKING SET) : 652 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 100.0 REMARK 3 BIN R VALUE (WORKING SET) : 0.1990 REMARK 3 BIN FREE R VALUE SET COUNT : 35 REMARK 3 BIN FREE R VALUE : 0.2920 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 2014 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 15 REMARK 3 SOLVENT ATOMS : 97 REMARK 3 REMARK 3 B VALUES. REMARK 3 B VALUE TYPE : LIKELY RESIDUAL REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 43.63 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 0.02000 REMARK 3 B22 (A**2) : -0.21000 REMARK 3 B33 (A**2) : 0.24000 REMARK 3 B12 (A**2) : 0.00000 REMARK 3 B13 (A**2) : 0.08000 REMARK 3 B23 (A**2) : 0.00000 REMARK 3 REMARK 3 ESTIMATED OVERALL COORDINATE ERROR. REMARK 3 ESU BASED ON R VALUE (A): 0.557 REMARK 3 ESU BASED ON FREE R VALUE (A): 0.256 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.187 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 15.988 REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : 0.964 REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : 0.925 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES COUNT RMS WEIGHT REMARK 3 BOND LENGTHS REFINED ATOMS (A): 2058 ; 0.008 ; 0.022 REMARK 3 BOND LENGTHS OTHERS (A): NULL ; NULL ; NULL REMARK 3 BOND ANGLES REFINED ATOMS (DEGREES): 2774 ; 1.173 ; 1.979 REMARK 3 BOND ANGLES OTHERS (DEGREES): NULL ; NULL ; NULL REMARK 3 TORSION ANGLES, PERIOD 1 (DEGREES): 256 ; 5.149 ; 5.000 REMARK 3 TORSION ANGLES, PERIOD 2 (DEGREES): 79 ;32.023 ;24.051 REMARK 3 TORSION ANGLES, PERIOD 3 (DEGREES): 380 ;16.088 ;15.000 REMARK 3 TORSION ANGLES, PERIOD 4 (DEGREES): 10 ;17.547 ;15.000 REMARK 3 CHIRAL-CENTER RESTRAINTS (A**3): 309 ; 0.077 ; 0.200 REMARK 3 GENERAL PLANES REFINED ATOMS (A): 1498 ; 0.003 ; 0.020 REMARK 3 GENERAL PLANES OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED CONTACTS REFINED ATOMS (A): 834 ; 0.196 ; 0.200 REMARK 3 NON-BONDED CONTACTS OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED TORSION REFINED ATOMS (A): 1437 ; 0.296 ; 0.200 REMARK 3 NON-BONDED TORSION OTHERS (A): NULL ; NULL ; NULL REMARK 3 H-BOND (X...Y) REFINED ATOMS (A): 90 ; 0.148 ; 0.200 REMARK 3 H-BOND (X...Y) OTHERS (A): NULL ; NULL ; NULL REMARK 3 POTENTIAL METAL-ION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 POTENTIAL METAL-ION OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY VDW REFINED ATOMS (A): 18 ; 0.135 ; 0.200 REMARK 3 SYMMETRY VDW OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY H-BOND REFINED ATOMS (A): 5 ; 0.044 ; 0.200 REMARK 3 SYMMETRY H-BOND OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY METAL-ION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY METAL-ION OTHERS (A): NULL ; NULL ; NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. COUNT RMS WEIGHT REMARK 3 MAIN-CHAIN BOND REFINED ATOMS (A**2): 1313 ; 0.396 ; 1.500 REMARK 3 MAIN-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE REFINED ATOMS (A**2): 2059 ; 0.697 ; 2.000 REMARK 3 MAIN-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN BOND REFINED ATOMS (A**2): 860 ; 1.054 ; 3.000 REMARK 3 SIDE-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE REFINED ATOMS (A**2): 715 ; 1.796 ; 4.500 REMARK 3 SIDE-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 LONG RANGE B REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 LONG RANGE B OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 REMARK 3 ANISOTROPIC THERMAL FACTOR RESTRAINTS. COUNT RMS WEIGHT REMARK 3 RIGID-BOND RESTRAINTS (A**2): NULL ; NULL ; NULL REMARK 3 SPHERICITY; FREE ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SPHERICITY; BONDED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 REMARK 3 NCS RESTRAINTS STATISTICS REMARK 3 NUMBER OF DIFFERENT NCS GROUPS : NULL REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : 2 REMARK 3 REMARK 3 TLS GROUP : 1 REMARK 3 NUMBER OF COMPONENTS GROUP : 2 REMARK 3 COMPONENTS C SSSEQI TO C SSSEQI REMARK 3 RESIDUE RANGE : A 1 A 103 REMARK 3 RESIDUE RANGE : A 215 A 257 REMARK 3 ORIGIN FOR THE GROUP (A): 10.7600 15.7850 10.9010 REMARK 3 T TENSOR REMARK 3 T11: -0.2035 T22: -0.2155 REMARK 3 T33: -0.2909 T12: 0.0440 REMARK 3 T13: -0.0177 T23: 0.0058 REMARK 3 L TENSOR REMARK 3 L11: 4.9532 L22: 4.1363 REMARK 3 L33: 3.8863 L12: -0.7797 REMARK 3 L13: 0.5450 L23: 0.2694 REMARK 3 S TENSOR REMARK 3 S11: -0.1351 S12: -0.5100 S13: -0.0685 REMARK 3 S21: 0.5187 S22: 0.1806 S23: -0.4211 REMARK 3 S31: 0.0524 S32: 0.0678 S33: -0.0456 REMARK 3 REMARK 3 TLS GROUP : 2 REMARK 3 NUMBER OF COMPONENTS GROUP : 1 REMARK 3 COMPONENTS C SSSEQI TO C SSSEQI REMARK 3 RESIDUE RANGE : A 104 A 214 REMARK 3 ORIGIN FOR THE GROUP (A): 18.1220 33.5820 -3.7200 REMARK 3 T TENSOR REMARK 3 T11: -0.1948 T22: -0.1547 REMARK 3 T33: -0.1516 T12: -0.0369 REMARK 3 T13: 0.0162 T23: -0.0400 REMARK 3 L TENSOR REMARK 3 L11: 6.2127 L22: 7.0591 REMARK 3 L33: 5.6564 L12: 2.8659 REMARK 3 L13: 0.4059 L23: 2.0739 REMARK 3 S TENSOR REMARK 3 S11: -0.3166 S12: 0.3655 S13: 0.0487 REMARK 3 S21: -0.4429 S22: 0.4737 S23: -0.6613 REMARK 3 S31: -0.3842 S32: 0.3855 S33: -0.1570 REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : BABINET MODEL WITH MASK REMARK 3 PARAMETERS FOR MASK CALCULATION REMARK 3 VDW PROBE RADIUS : 1.40 REMARK 3 ION PROBE RADIUS : 0.80 REMARK 3 SHRINKAGE RADIUS : 0.80 REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: HYDROGENS HAVE BEEN ADDED IN THE RIDING REMARK 3 POSITIONS REMARK 4 REMARK 4 3EN3 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 30-SEP-08. REMARK 100 THE DEPOSITION ID IS D_1000049529. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 01-MAR-06 REMARK 200 TEMPERATURE (KELVIN) : 298 REMARK 200 PH : 4.5 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 : FOCUSING MIRRORS REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : MAR SCANNER 345 MM PLATE REMARK 200 INTENSITY-INTEGRATION SOFTWARE : XDS REMARK 200 DATA SCALING SOFTWARE : XDS REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 10025 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.430 REMARK 200 RESOLUTION RANGE LOW (A) : 11.950 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : -3.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 95.3 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) : 2.43 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.49 REMARK 200 COMPLETENESS FOR SHELL (%) : 94.1 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: NULL REMARK 200 SOFTWARE USED: CNS REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 48.98 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.41 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 25.5% PEG 1500, 0.05M NA-ACETATE, PH REMARK 280 4.5, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 291K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: C 1 2 1 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 62.95300 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 24.37450 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 4 -1.000000 0.000000 0.000000 62.95300 REMARK 290 SMTRY2 4 0.000000 1.000000 0.000000 24.37450 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: 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 0.00000 REMARK 350 BIOMT2 2 0.000000 1.000000 0.000000 0.00000 REMARK 350 BIOMT3 2 0.000000 0.000000 -1.000000 0.00000 REMARK 350 REMARK 350 BIOMOLECULE: 2 REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: MONOMERIC REMARK 350 SOFTWARE USED: PISA 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 480 REMARK 480 ZERO OCCUPANCY ATOM REMARK 480 THE FOLLOWING RESIDUES HAVE ATOMS MODELED WITH ZERO REMARK 480 OCCUPANCY. THE LOCATION AND PROPERTIES OF THESE ATOMS REMARK 480 MAY NOT BE RELIABLE. (M=MODEL NUMBER; RES=RESIDUE NAME; REMARK 480 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE): REMARK 480 M RES C SSEQI ATOMS REMARK 480 LYS A 48 CE NZ REMARK 480 LYS A 153 CD CE NZ REMARK 480 LYS A 179 CE NZ REMARK 480 CYS A 257 O OXT REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE KAI A 999 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 3EPE RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF THE GLUR4 LIGAND-BINDING DOMAIN IN COMPLEX REMARK 900 WITH GLUTAMATE DBREF 3EN3 A 1 113 UNP P19493 GRIA4_RAT 416 528 DBREF 3EN3 A 116 257 UNP P19493 GRIA4_RAT 654 795 SEQADV 3EN3 GLY A 114 UNP P19493 LINKER SEQADV 3EN3 THR A 115 UNP P19493 LINKER SEQADV 3EN3 ARG A 227 UNP P19493 GLY 765 VARIANT SEQADV 3EN3 THR A 228 UNP P19493 ASN 766 VARIANT SEQADV 3EN3 PRO A 229 UNP P19493 ALA 767 VARIANT SEQADV 3EN3 SER A 238 UNP P19493 ASN 776 VARIANT SEQADV 3EN3 ALA A 240 UNP P19493 GLN 778 VARIANT SEQADV 3EN3 VAL A 242 UNP P19493 LEU 780 VARIANT SEQRES 1 A 257 THR VAL VAL VAL THR THR ILE MET GLU SER PRO TYR VAL SEQRES 2 A 257 MET TYR LYS LYS ASN HIS GLU MET PHE GLU GLY ASN ASP SEQRES 3 A 257 LYS TYR GLU GLY TYR CYS VAL ASP LEU ALA SER GLU ILE SEQRES 4 A 257 ALA LYS HIS ILE GLY ILE LYS TYR LYS ILE ALA ILE VAL SEQRES 5 A 257 PRO ASP GLY LYS TYR GLY ALA ARG ASP ALA ASP THR LYS SEQRES 6 A 257 ILE TRP ASN GLY MET VAL GLY GLU LEU VAL TYR GLY LYS SEQRES 7 A 257 ALA GLU ILE ALA ILE ALA PRO LEU THR ILE THR LEU VAL SEQRES 8 A 257 ARG GLU GLU VAL ILE ASP PHE SER LYS PRO PHE MET SER SEQRES 9 A 257 LEU GLY ILE SER ILE MET ILE LYS LYS GLY THR PRO ILE SEQRES 10 A 257 GLU SER ALA GLU ASP LEU ALA LYS GLN THR GLU ILE ALA SEQRES 11 A 257 TYR GLY THR LEU ASP SER GLY SER THR LYS GLU PHE PHE SEQRES 12 A 257 ARG ARG SER LYS ILE ALA VAL TYR GLU LYS MET TRP THR SEQRES 13 A 257 TYR MET ARG SER ALA GLU PRO SER VAL PHE THR ARG THR SEQRES 14 A 257 THR ALA GLU GLY VAL ALA ARG VAL ARG LYS SER LYS GLY SEQRES 15 A 257 LYS PHE ALA PHE LEU LEU GLU SER THR MET ASN GLU TYR SEQRES 16 A 257 THR GLU GLN ARG LYS PRO CYS ASP THR MET LYS VAL GLY SEQRES 17 A 257 GLY ASN LEU ASP SER LYS GLY TYR GLY VAL ALA THR PRO SEQRES 18 A 257 LYS GLY SER SER LEU ARG THR PRO VAL ASN LEU ALA VAL SEQRES 19 A 257 LEU LYS LEU SER GLU ALA GLY VAL LEU ASP LYS LEU LYS SEQRES 20 A 257 ASN LYS TRP TRP TYR ASP LYS GLY GLU CYS HET KAI A 999 15 HETNAM KAI 3-(CARBOXYMETHYL)-4-ISOPROPENYLPROLINE HETSYN KAI KAINATE FORMUL 2 KAI C10 H15 N O4 FORMUL 3 HOH *97(H2 O) HELIX 1 1 ASN A 18 PHE A 22 5 5 HELIX 2 2 GLU A 23 ASP A 26 5 4 HELIX 3 3 GLY A 30 GLY A 44 1 15 HELIX 4 4 ASN A 68 TYR A 76 1 9 HELIX 5 5 THR A 89 GLU A 94 1 6 HELIX 6 6 SER A 119 LYS A 125 1 7 HELIX 7 7 GLY A 137 SER A 146 1 10 HELIX 8 8 ILE A 148 ALA A 161 1 14 HELIX 9 9 THR A 169 SER A 180 1 12 HELIX 10 10 SER A 190 GLN A 198 1 9 HELIX 11 11 LEU A 226 ALA A 240 1 15 HELIX 12 12 GLY A 241 TYR A 252 1 12 SHEET 1 A 3 TYR A 47 ILE A 51 0 SHEET 2 A 3 VAL A 2 THR A 6 1 N VAL A 4 O LYS A 48 SHEET 3 A 3 ILE A 81 ALA A 82 1 O ILE A 81 N THR A 5 SHEET 1 B 2 MET A 14 TYR A 15 0 SHEET 2 B 2 TYR A 28 GLU A 29 -1 O GLU A 29 N MET A 14 SHEET 1 C 2 ILE A 96 PHE A 98 0 SHEET 2 C 2 ALA A 219 PRO A 221 -1 O THR A 220 N ASP A 97 SHEET 1 D 2 MET A 103 LEU A 105 0 SHEET 2 D 2 LYS A 214 TYR A 216 -1 O LYS A 214 N LEU A 105 SHEET 1 E 4 ALA A 130 GLY A 132 0 SHEET 2 E 4 PHE A 184 GLU A 189 1 O LEU A 187 N GLY A 132 SHEET 3 E 4 ILE A 107 LYS A 112 -1 N MET A 110 O PHE A 186 SHEET 4 E 4 THR A 204 VAL A 207 -1 O MET A 205 N ILE A 111 SSBOND 1 CYS A 202 CYS A 257 1555 1555 2.03 CISPEP 1 SER A 10 PRO A 11 0 -4.59 CISPEP 2 GLU A 162 PRO A 163 0 1.40 CISPEP 3 LYS A 200 PRO A 201 0 5.10 SITE 1 AC1 11 GLU A 9 TYR A 57 PRO A 85 THR A 87 SITE 2 AC1 11 ARG A 92 GLY A 137 SER A 138 THR A 139 SITE 3 AC1 11 GLU A 189 HOH A1040 HOH A1053 CRYST1 125.906 48.749 47.766 90.00 109.06 90.00 C 1 2 1 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 0.007942 0.000000 0.002744 0.00000 SCALE2 0.000000 0.020513 0.000000 0.00000 SCALE3 0.000000 0.000000 0.022150 0.00000