HEADER MEMBRANE PROTEIN 03-MAR-16 5IKB TITLE CRYSTAL STRUCTURE OF THE KAINATE RECEPTOR GLUK4 LIGAND BINDING DOMAIN TITLE 2 IN COMPLEX WITH KAINATE COMPND MOL_ID: 1; COMPND 2 MOLECULE: GLUTAMATE RECEPTOR IONOTROPIC, KAINATE 4,GLUTAMATE RECEPTOR COMPND 3 IONOTROPIC, KAINATE 4; COMPND 4 CHAIN: A; COMPND 5 SYNONYM: GLUK4,GLUTAMATE RECEPTOR KA-1,KA1,GLUK4,GLUTAMATE RECEPTOR COMPND 6 KA-1,KA1; 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 GENE: GRIK4; SOURCE 6 EXPRESSION_SYSTEM: TRICHOPLUSIA NI; SOURCE 7 EXPRESSION_SYSTEM_COMMON: CABBAGE LOOPER; SOURCE 8 EXPRESSION_SYSTEM_TAXID: 7111; SOURCE 9 EXPRESSION_SYSTEM_CELL_LINE: HIGH FIVE; SOURCE 10 EXPRESSION_SYSTEM_VECTOR_TYPE: VIRUS; SOURCE 11 EXPRESSION_SYSTEM_PLASMID: PPEU6 KEYWDS HIGH-AFFINITY KAINATE RECEPTOR, MEMBRANE PROTEIN, LIGAND BINDING KEYWDS 2 DOMAIN, ION CHANNEL EXPDTA X-RAY DIFFRACTION AUTHOR O.KRISTENSEN,L.B.KRISTENSEN,K.FRYDENVANG,J.S.KASTRUP REVDAT 5 10-JAN-24 5IKB 1 REMARK REVDAT 4 27-MAR-19 5IKB 1 SOURCE ATOM REVDAT 3 09-AUG-17 5IKB 1 JRNL REVDAT 2 14-SEP-16 5IKB 1 JRNL REVDAT 1 24-AUG-16 5IKB 0 JRNL AUTH O.KRISTENSEN,L.B.KRISTENSEN,S.MOLLERUD,K.FRYDENVANG, JRNL AUTH 2 D.S.PICKERING,J.S.KASTRUP JRNL TITL THE STRUCTURE OF A HIGH-AFFINITY KAINATE RECEPTOR: GLUK4 JRNL TITL 2 LIGAND-BINDING DOMAIN CRYSTALLIZED WITH KAINATE. JRNL REF STRUCTURE V. 24 1582 2016 JRNL REFN ISSN 0969-2126 JRNL PMID 27524200 JRNL DOI 10.1016/J.STR.2016.06.019 REMARK 2 REMARK 2 RESOLUTION. 2.05 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC 5.8.0135 REMARK 3 AUTHORS : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER, REMARK 3 : NICHOLLS,WINN,LONG,VAGIN REMARK 3 REMARK 3 REFINEMENT TARGET : NULL REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.05 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 40.69 REMARK 3 DATA CUTOFF (SIGMA(F)) : NULL REMARK 3 COMPLETENESS FOR RANGE (%) : 99.1 REMARK 3 NUMBER OF REFLECTIONS : 15326 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) : 0.195 REMARK 3 R VALUE (WORKING SET) : 0.191 REMARK 3 FREE R VALUE : 0.262 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.500 REMARK 3 FREE R VALUE TEST SET COUNT : 897 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) : 2.05 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.10 REMARK 3 REFLECTION IN BIN (WORKING SET) : 1068 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 95.99 REMARK 3 BIN R VALUE (WORKING SET) : 0.2410 REMARK 3 BIN FREE R VALUE SET COUNT : 58 REMARK 3 BIN FREE R VALUE : 0.3420 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1995 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 27 REMARK 3 SOLVENT ATOMS : 220 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 23.95 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 26.71 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 0.21000 REMARK 3 B22 (A**2) : 0.08000 REMARK 3 B33 (A**2) : -0.29000 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 OVERALL COORDINATE ERROR. REMARK 3 ESU BASED ON R VALUE (A): 0.244 REMARK 3 ESU BASED ON FREE R VALUE (A): 0.212 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.158 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 5.919 REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : 0.938 REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : 0.879 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES COUNT RMS WEIGHT REMARK 3 BOND LENGTHS REFINED ATOMS (A): 2116 ; 0.017 ; 0.019 REMARK 3 BOND LENGTHS OTHERS (A): 1993 ; 0.002 ; 0.020 REMARK 3 BOND ANGLES REFINED ATOMS (DEGREES): 2866 ; 1.805 ; 1.963 REMARK 3 BOND ANGLES OTHERS (DEGREES): 4583 ; 1.078 ; 3.000 REMARK 3 TORSION ANGLES, PERIOD 1 (DEGREES): 262 ; 6.332 ; 5.000 REMARK 3 TORSION ANGLES, PERIOD 2 (DEGREES): 101 ;37.144 ;24.257 REMARK 3 TORSION ANGLES, PERIOD 3 (DEGREES): 370 ;15.398 ;15.000 REMARK 3 TORSION ANGLES, PERIOD 4 (DEGREES): 14 ;18.375 ;15.000 REMARK 3 CHIRAL-CENTER RESTRAINTS (A**3): 314 ; 0.113 ; 0.200 REMARK 3 GENERAL PLANES REFINED ATOMS (A): 2427 ; 0.008 ; 0.020 REMARK 3 GENERAL PLANES OTHERS (A): 501 ; 0.002 ; 0.020 REMARK 3 NON-BONDED CONTACTS REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED CONTACTS OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED TORSION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED TORSION OTHERS (A): NULL ; NULL ; NULL REMARK 3 H-BOND (X...Y) REFINED ATOMS (A): NULL ; NULL ; NULL 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): NULL ; NULL ; NULL REMARK 3 SYMMETRY VDW OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY H-BOND REFINED ATOMS (A): NULL ; NULL ; NULL 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): 1033 ; 2.131 ; 2.416 REMARK 3 MAIN-CHAIN BOND OTHER ATOMS (A**2): 1033 ; 2.131 ; 2.416 REMARK 3 MAIN-CHAIN ANGLE REFINED ATOMS (A**2): 1300 ; 3.251 ; 3.608 REMARK 3 MAIN-CHAIN ANGLE OTHER ATOMS (A**2): 1301 ; 3.249 ; 3.608 REMARK 3 SIDE-CHAIN BOND REFINED ATOMS (A**2): 1083 ; 2.919 ; 2.807 REMARK 3 SIDE-CHAIN BOND OTHER ATOMS (A**2): 1083 ; 2.914 ; 2.808 REMARK 3 SIDE-CHAIN ANGLE REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE OTHER ATOMS (A**2): 1567 ; 4.576 ; 4.071 REMARK 3 LONG RANGE B REFINED ATOMS (A**2): 2531 ; 6.899 ;20.333 REMARK 3 LONG RANGE B OTHER ATOMS (A**2): 2461 ; 6.729 ;20.032 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 : NULL REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : NULL REMARK 3 PARAMETERS FOR MASK CALCULATION REMARK 3 VDW PROBE RADIUS : 1.20 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 5IKB COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 03-MAR-16. REMARK 100 THE DEPOSITION ID IS D_1000215687. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 07-OCT-15 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : NULL REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : ESRF REMARK 200 BEAMLINE : MASSIF-1 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.966 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : PIXEL REMARK 200 DETECTOR MANUFACTURER : DECTRIS PILATUS3 2M REMARK 200 INTENSITY-INTEGRATION SOFTWARE : XIA2 3.6.3, XDS MARCH 1, 2015 REMARK 200 DATA SCALING SOFTWARE : NULL REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 16260 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.050 REMARK 200 RESOLUTION RANGE LOW (A) : 40.690 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.3 REMARK 200 DATA REDUNDANCY : 5.800 REMARK 200 R MERGE (I) : 0.13600 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 8.9000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.05 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.10 REMARK 200 COMPLETENESS FOR SHELL (%) : 96.3 REMARK 200 DATA REDUNDANCY IN SHELL : 5.50 REMARK 200 R MERGE FOR SHELL (I) : 0.70900 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 2.000 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: PHASER 2.6.0 REMARK 200 STARTING MODEL: 2XXT REMARK 200 REMARK 200 REMARK: NEEDLE CLUSTER REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 43.70 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.20 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 15 % GLYCEROL, 25.5 % PEG4000, 0.17 M REMARK 280 AMMONIUM SULFATE, VAPOR DIFFUSION, SITTING DROP, TEMPERATURE 277K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: C 2 2 21 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 -X,Y,-Z+1/2 REMARK 290 4555 X,-Y,-Z REMARK 290 5555 X+1/2,Y+1/2,Z REMARK 290 6555 -X+1/2,-Y+1/2,Z+1/2 REMARK 290 7555 -X+1/2,Y+1/2,-Z+1/2 REMARK 290 8555 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 81.38000 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 81.38000 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 4 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 5 1.000000 0.000000 0.000000 22.25000 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 34.93500 REMARK 290 SMTRY3 5 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 6 -1.000000 0.000000 0.000000 22.25000 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 34.93500 REMARK 290 SMTRY3 6 0.000000 0.000000 1.000000 81.38000 REMARK 290 SMTRY1 7 -1.000000 0.000000 0.000000 22.25000 REMARK 290 SMTRY2 7 0.000000 1.000000 0.000000 34.93500 REMARK 290 SMTRY3 7 0.000000 0.000000 -1.000000 81.38000 REMARK 290 SMTRY1 8 1.000000 0.000000 0.000000 22.25000 REMARK 290 SMTRY2 8 0.000000 -1.000000 0.000000 34.93500 REMARK 290 SMTRY3 8 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 SOFTWARE DETERMINED QUATERNARY STRUCTURE: MONOMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 510 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 12190 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: 1.0 KCAL/MOL 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 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 463 LIES ON A SPECIAL POSITION. REMARK 375 HOH A 574 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 PRO A 2 REMARK 465 ASN A 3 REMARK 465 THR A 4 REMARK 465 GLY A 254 REMARK 465 LYS A 255 REMARK 465 CYS A 256 REMARK 465 PRO A 257 REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS IN SAME ASYMMETRIC UNIT REMARK 500 REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT. REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI DISTANCE REMARK 500 O HOH A 568 O HOH A 582 2.15 REMARK 500 REMARK 500 REMARK: NULL 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 OH TYR A 162 ND2 ASN A 184 8456 2.06 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: COVALENT BOND ANGLES REMARK 500 REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 STANDARD TABLE: REMARK 500 FORMAT: (10X,I3,1X,A3,1X,A1,I4,A1,3(1X,A4,2X),12X,F5.1) REMARK 500 REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999 REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996 REMARK 500 REMARK 500 M RES CSSEQI ATM1 ATM2 ATM3 REMARK 500 ARG A 248 NE - CZ - NH1 ANGL. DEV. = 3.3 DEGREES 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 GLU A 13 116.15 -163.14 REMARK 500 ASN A 22 57.83 -103.82 REMARK 500 ASN A 201 91.71 -162.90 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 A 619 DISTANCE = 5.91 ANGSTROMS REMARK 525 HOH A 620 DISTANCE = 6.28 ANGSTROMS 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 301 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue GOL A 302 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue GOL A 303 DBREF 5IKB A 3 114 UNP Q01812 GRIK4_RAT 415 526 DBREF 5IKB A 119 257 UNP Q01812 GRIK4_RAT 652 790 SEQADV 5IKB GLY A 1 UNP Q01812 EXPRESSION TAG SEQADV 5IKB PRO A 2 UNP Q01812 EXPRESSION TAG SEQADV 5IKB ARG A 115 UNP Q01812 LINKER SEQADV 5IKB LYS A 116 UNP Q01812 LINKER SEQADV 5IKB GLY A 117 UNP Q01812 LINKER SEQADV 5IKB THR A 118 UNP Q01812 LINKER SEQRES 1 A 257 GLY PRO ASN THR THR LEU VAL VAL THR THR ILE LEU GLU SEQRES 2 A 257 ASN PRO TYR LEU MET LEU LYS GLY ASN HIS GLN ASP MET SEQRES 3 A 257 GLU GLY ASN ASP ARG TYR GLU GLY PHE CYS VAL ASP MET SEQRES 4 A 257 LEU LYS GLU LEU ALA GLU ILE LEU ARG PHE ASN TYR LYS SEQRES 5 A 257 ILE ARG LEU VAL GLY ASP GLY VAL TYR GLY VAL PRO GLU SEQRES 6 A 257 ALA ASN GLY THR TRP THR GLY MET VAL GLY GLU LEU ILE SEQRES 7 A 257 ALA ARG LYS ALA ASP LEU ALA VAL ALA GLY LEU THR ILE SEQRES 8 A 257 THR ALA GLU ARG GLU LYS VAL ILE ASP PHE SER LYS PRO SEQRES 9 A 257 PHE MET THR LEU GLY ILE SER ILE LEU TYR ARG LYS GLY SEQRES 10 A 257 THR PRO ILE GLU SER VAL ASP ASP LEU ALA ASP GLN THR SEQRES 11 A 257 ALA ILE GLU TYR GLY THR ILE HIS GLY GLY SER SER MET SEQRES 12 A 257 THR PHE PHE GLN ASN SER ARG TYR GLN THR TYR GLN ARG SEQRES 13 A 257 MET TRP ASN TYR MET TYR SER LYS GLN PRO SER VAL PHE SEQRES 14 A 257 VAL LYS SER THR GLU GLU GLY ILE ALA ARG VAL LEU ASN SEQRES 15 A 257 SER ASN TYR ALA PHE LEU LEU GLU SER THR MET ASN GLU SEQRES 16 A 257 TYR TYR ARG GLN ARG ASN CYS ASN LEU THR GLN ILE GLY SEQRES 17 A 257 GLY LEU LEU ASP THR LYS GLY TYR GLY ILE GLY MET PRO SEQRES 18 A 257 VAL GLY SER VAL PHE ARG ASP GLU PHE ASP LEU ALA ILE SEQRES 19 A 257 LEU GLN LEU GLN GLU ASN ASN ARG LEU GLU ILE LEU LYS SEQRES 20 A 257 ARG LYS TRP TRP GLU GLY GLY LYS CYS PRO HET KAI A 301 15 HET GOL A 302 6 HET GOL A 303 6 HETNAM KAI 3-(CARBOXYMETHYL)-4-ISOPROPENYLPROLINE HETNAM GOL GLYCEROL HETSYN KAI KAINATE HETSYN GOL GLYCERIN; PROPANE-1,2,3-TRIOL FORMUL 2 KAI C10 H15 N O4 FORMUL 3 GOL 2(C3 H8 O3) FORMUL 5 HOH *220(H2 O) HELIX 1 AA1 ASN A 22 MET A 26 5 5 HELIX 2 AA2 GLU A 27 ASP A 30 5 4 HELIX 3 AA3 GLY A 34 ARG A 48 1 15 HELIX 4 AA4 THR A 71 ALA A 79 1 9 HELIX 5 AA5 THR A 92 LYS A 97 1 6 HELIX 6 AA6 SER A 122 ASP A 128 1 7 HELIX 7 AA7 GLY A 140 ASN A 148 1 9 HELIX 8 AA8 TYR A 151 LYS A 164 1 14 HELIX 9 AA9 SER A 172 SER A 183 1 12 HELIX 10 AB1 SER A 191 ARG A 200 1 10 HELIX 11 AB2 PHE A 226 ASN A 240 1 15 HELIX 12 AB3 ASN A 241 GLU A 252 1 12 SHEET 1 AA1 3 TYR A 51 LEU A 55 0 SHEET 2 AA1 3 LEU A 6 THR A 10 1 N VAL A 8 O ARG A 54 SHEET 3 AA1 3 LEU A 84 ALA A 85 1 O LEU A 84 N THR A 9 SHEET 1 AA2 2 MET A 18 LEU A 19 0 SHEET 2 AA2 2 TYR A 32 GLU A 33 -1 O GLU A 33 N MET A 18 SHEET 1 AA3 2 ILE A 99 PHE A 101 0 SHEET 2 AA3 2 GLY A 219 PRO A 221 -1 O MET A 220 N ASP A 100 SHEET 1 AA4 2 MET A 106 LEU A 108 0 SHEET 2 AA4 2 LYS A 214 TYR A 216 -1 O LYS A 214 N LEU A 108 SHEET 1 AA5 4 GLU A 133 GLY A 135 0 SHEET 2 AA5 4 TYR A 185 GLU A 190 1 O LEU A 188 N GLY A 135 SHEET 3 AA5 4 ILE A 110 ARG A 115 -1 N LEU A 113 O PHE A 187 SHEET 4 AA5 4 LEU A 204 GLN A 206 -1 O THR A 205 N TYR A 114 CISPEP 1 ASN A 14 PRO A 15 0 -10.74 CISPEP 2 GLN A 165 PRO A 166 0 -10.80 SITE 1 AC1 14 GLU A 13 TYR A 61 GLY A 88 THR A 90 SITE 2 AC1 14 ARG A 95 ILE A 137 GLY A 140 SER A 141 SITE 3 AC1 14 SER A 142 THR A 173 GLU A 190 HOH A 470 SITE 4 AC1 14 HOH A 482 HOH A 504 SITE 1 AC2 10 GLY A 62 VAL A 63 PRO A 64 TRP A 70 SITE 2 AC2 10 THR A 92 ARG A 95 GLY A 139 SER A 141 SITE 3 AC2 10 THR A 144 HOH A 466 SITE 1 AC3 4 ALA A 44 ARG A 48 PHE A 49 ASN A 50 CRYST1 44.500 69.870 162.760 90.00 90.00 90.00 C 2 2 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 0.022472 0.000000 0.000000 0.00000 SCALE2 0.000000 0.014312 0.000000 0.00000 SCALE3 0.000000 0.000000 0.006144 0.00000