HEADER MEMBRANE PROTEIN 01-AUG-05 2AIX TITLE X-RAY STRUCTURE OF THE GLUR2 LIGAND-BINDING CORE (S1S2J) IN COMPLEX TITLE 2 WITH (S)-THIO-ATPA AT 2.2 A RESOLUTION. COMPND MOL_ID: 1; COMPND 2 MOLECULE: GLUTAMATE RECEPTOR 2; COMPND 3 CHAIN: A; COMPND 4 FRAGMENT: GLUR2-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: 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, AGONIST KEYWDS 2 COMPLEX., MEMBRANE PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR J.S.KASTRUP REVDAT 4 23-AUG-23 2AIX 1 REMARK SEQADV REVDAT 3 02-AUG-17 2AIX 1 SOURCE REMARK REVDAT 2 24-FEB-09 2AIX 1 VERSN REVDAT 1 09-AUG-05 2AIX 0 JRNL AUTH M.M.HOLM,M.L.LUNN,S.F.TRAYNELIS,J.S.KASTRUP,J.EGEBJERG JRNL TITL DISTINCT KINETICS OF IONOTROPIC GLUTAMATE RECEPTOR 2 SPLICE JRNL TITL 2 VARIANTS CHARACTERIZED BY FAST AGONIST APPLICATION AND JRNL TITL 3 CRYSTALLIZATION OF A RECEPTOR-LIGAND COMPLEX. JRNL REF TO BE PUBLISHED JRNL REFN REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH A.HOGNER,J.S.KASTRUP,R.JIN,T.LILJEFORS,M.L.MAYER,J.EGEBJERG, REMARK 1 AUTH 2 I.LARSEN,E.GOUAUX REMARK 1 TITL STRUCTURAL BASIS FOR AMPA RECEPTOR ACTIVATION AND LIGAND REMARK 1 TITL 2 SELECTIVITY: CRYSTAL STRUCTURES OF FIVE AGONIST COMPLEXES REMARK 1 TITL 3 WITH THE GLUR2 LIGAND BINDING CORE. REMARK 1 REF J.MOL.BIOL. V. 322 93 2002 REMARK 1 REFN ISSN 0022-2836 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 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 REFERENCE 3 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 REFERENCE 4 REMARK 1 AUTH G.Q.CHEN,R.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. 2.17 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) : 2.17 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 20.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : 1987987.790 REMARK 3 DATA CUTOFF LOW (ABS(F)) : 0.0000 REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 98.3 REMARK 3 NUMBER OF REFLECTIONS : 15528 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) : 0.198 REMARK 3 FREE R VALUE : 0.230 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 4.800 REMARK 3 FREE R VALUE TEST SET COUNT : 741 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : 0.008 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) : 2.17 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.31 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 95.10 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 2301 REMARK 3 BIN R VALUE (WORKING SET) : 0.1950 REMARK 3 BIN FREE R VALUE : 0.2420 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 4.60 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 111 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : 0.023 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 : 16 REMARK 3 SOLVENT ATOMS : 234 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 24.50 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 25.70 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : -3.62000 REMARK 3 B22 (A**2) : -3.62000 REMARK 3 B33 (A**2) : 7.24000 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) : 0.22 REMARK 3 ESD FROM SIGMAA (A) : 0.10 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) : 0.28 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.17 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.005 REMARK 3 BOND ANGLES (DEGREES) : 1.220 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 21.90 REMARK 3 IMPROPER ANGLES (DEGREES) : 0.770 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) : 1.370 ; 1.500 REMARK 3 MAIN-CHAIN ANGLE (A**2) : 2.180 ; 2.000 REMARK 3 SIDE-CHAIN BOND (A**2) : 2.300 ; 2.000 REMARK 3 SIDE-CHAIN ANGLE (A**2) : 3.420 ; 2.500 REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED : FLAT MODEL REMARK 3 KSOL : 0.41 REMARK 3 BSOL : 60.35 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 : WATER_REP.PARAM REMARK 3 PARAMETER FILE 3 : NULL REMARK 3 TOPOLOGY FILE 1 : PROTEIN.TOP REMARK 3 TOPOLOGY FILE 2 : WATER_REP.TOP REMARK 3 TOPOLOGY FILE 3 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: THE FIRST THREE N-TERMINAL RESIDUES AND REMARK 3 THE LAST TWO C-TERMINAL RESIDUES WERE NOT LOCATED IN THE REMARK 3 ELECTRON DENSITY MAP. REMARK 4 REMARK 4 2AIX COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 02-AUG-05. REMARK 100 THE DEPOSITION ID IS D_1000033947. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 14-OCT-00 REMARK 200 TEMPERATURE (KELVIN) : 100.0 REMARK 200 PH : 6.50 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : MAX II REMARK 200 BEAMLINE : I711 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.0835 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE 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 : 15624 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.170 REMARK 200 RESOLUTION RANGE LOW (A) : 20.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 98.3 REMARK 200 DATA REDUNDANCY : 6.300 REMARK 200 R MERGE (I) : 0.06700 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 24.6000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.17 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.25 REMARK 200 COMPLETENESS FOR SHELL (%) : 93.4 REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : 0.22800 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 7.600 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. REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 48.80 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.42 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: SODIUM CHLORIDE, CACODYLATE, PEG 8000, REMARK 280 PH 6.50, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 279K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 41 2 2 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 5555 -X,Y,-Z REMARK 290 6555 X,-Y,-Z+1/2 REMARK 290 7555 Y,X,-Z+3/4 REMARK 290 8555 -Y,-X,-Z+1/4 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 120.33200 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 60.16600 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 180.49800 REMARK 290 SMTRY1 5 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 5 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 6 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 6 0.000000 0.000000 -1.000000 120.33200 REMARK 290 SMTRY1 7 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY2 7 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 7 0.000000 0.000000 -1.000000 180.49800 REMARK 290 SMTRY1 8 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY2 8 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 8 0.000000 0.000000 -1.000000 60.16600 REMARK 290 REMARK 290 REMARK: NULL REMARK 300 REMARK 300 BIOMOLECULE: 1 REMARK 300 THIS ENTRY CONTAINS THE CRYSTALLOGRAPHIC ASYMMETRIC UNIT REMARK 300 WHICH CONSISTS OF 1 CHAIN(S). THE RECEPTOR CONSISTS OF REMARK 300 FOUR SUBUNITS CONSTITUTING A TETRAMER. ONE DIMER OF REMARK 300 THE TETRAMER CAN BE GENERATED IN THE CRYSTAL. SEE REMARK REMARK 300 350 FOR INFORMATION ON GENERATING THE BIOLOGICAL MOLECULE(S). 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 0.000000 -1.000000 0.000000 47.87500 REMARK 350 BIOMT2 2 -1.000000 0.000000 0.000000 47.87500 REMARK 350 BIOMT3 2 0.000000 0.000000 -1.000000 60.16600 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 ASN A 0 REMARK 465 GLY A 259 REMARK 465 SER A 260 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 19 58.88 38.18 REMARK 500 LYS A 215 -167.38 -160.65 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 U1K A 261 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 CORE OF GLUR2. TRANSMEMBRANE REGIONS WERE GENETICALLY REMARK 999 REMOVED AND REPLACED WITH A GLY-THR LINKER (RESIDUES REMARK 999 115-116). THEREFORE, THE SEQUENCE MATCHES DISCONTINUOUSLY REMARK 999 WITH THE REFERENCE DATABASE (413-527, 653-796). DBREF 2AIX A 0 114 UNP P19491 GRIA2_RAT 413 527 DBREF 2AIX A 117 260 UNP P19491 GRIA2_RAT 653 796 SEQADV 2AIX GLY A -2 UNP P19491 CLONING ARTIFACT SEQADV 2AIX ALA A -1 UNP P19491 CLONING ARTIFACT SEQADV 2AIX GLY A 115 UNP P19491 SEE REMARK 999 SEQADV 2AIX THR A 116 UNP P19491 SEE REMARK 999 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 U1K A 261 16 HETNAM U1K (S)-2-AMINO-3-(3-HYDROXY-5-TERT-BUTYLISOTHIAZOL-4-YL) HETNAM 2 U1K PROPRIONIC ACID HETSYN U1K THIO-ATPA FORMUL 2 U1K C10 H16 N2 O3 S FORMUL 3 HOH *234(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 SER A 226 GLN A 241 1 16 HELIX 12 12 GLY A 242 TYR A 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 SSBOND 1 CYS A 203 CYS A 258 1555 1555 2.03 CISPEP 1 SER A 11 PRO A 12 0 -0.49 CISPEP 2 GLU A 163 PRO A 164 0 0.04 CISPEP 3 LYS A 201 PRO A 202 0 0.73 SITE 1 AC1 14 GLU A 10 TYR A 58 PRO A 86 LEU A 87 SITE 2 AC1 14 THR A 88 ARG A 93 GLY A 138 SER A 139 SITE 3 AC1 14 THR A 140 THR A 171 GLU A 190 MET A 193 SITE 4 AC1 14 HOH A 269 HOH A 276 CRYST1 47.875 47.875 240.664 90.00 90.00 90.00 P 41 2 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 0.020888 0.000000 0.000000 0.00000 SCALE2 0.000000 0.020888 0.000000 0.00000 SCALE3 0.000000 0.000000 0.004155 0.00000