HEADER MEMBRANE PROTEIN 31-OCT-02 1N4K TITLE CRYSTAL STRUCTURE OF THE INOSITOL 1,4,5-TRISPHOSPHATE TITLE 2 RECEPTOR BINDING CORE IN COMPLEX WITH IP3 COMPND MOL_ID: 1; COMPND 2 MOLECULE: INOSITOL 1,4,5-TRISPHOSPHATE RECEPTOR TYPE 1; COMPND 3 CHAIN: A; COMPND 4 FRAGMENT: IP3-BINDING CORE; COMPND 5 SYNONYM: TYPE 1 INOSITOL 1,4,5- TRISPHOSPHATE RECEPTOR, COMPND 6 TYPE 1 INSP3 RECEPTOR, IP3 RECEPTOR ISOFORM 1, INSP3R1, COMPND 7 INOSITOL 1,4,5-TRISPHOSPHATE-BINDING PROTEIN P400, COMPND 8 PURKINJE CELL PROTEIN 1; COMPND 9 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: MUS MUSCULUS; SOURCE 3 ORGANISM_COMMON: HOUSE MOUSE; SOURCE 4 ORGANISM_TAXID: 10090; SOURCE 5 GENE: ITPR1 OR INSP3R; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 8 EXPRESSION_SYSTEM_STRAIN: BL21-CODONPLUS(DE3); SOURCE 9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 10 EXPRESSION_SYSTEM_PLASMID: PGEX-2T KEYWDS IP3 RECEPTOR, IP3-BINDING CORE, CALCIUM CHANNEL,PROTEIN- KEYWDS 2 LIGAND COMPLEX, B-TREFOIL FOLD, ARMADILLO-LIKE FOLD, KEYWDS 3 MEMBRANE PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR I.BOSANAC,J.R.ALATTIA,T.K.MAL,J.CHAN,S.TALARICO,F.K.TONG, AUTHOR 2 K.I.TONG,F.YOSHIKAWA,T.FURUICHI,M.IWAI,T.MICHIKAWA, AUTHOR 3 K.MIKOSHIBA,M.IKURA REVDAT 2 24-FEB-09 1N4K 1 VERSN REVDAT 1 25-DEC-02 1N4K 0 JRNL AUTH I.BOSANAC,J.R.ALATTIA,T.K.MAL,J.CHAN,S.TALARICO, JRNL AUTH 2 F.K.TONG,K.I.TONG,F.YOSHIKAWA,T.FURUICHI,M.IWAI, JRNL AUTH 3 T.MICHIKAWA,K.MIKOSHIBA,M.IKURA JRNL TITL STRUCTURE OF THE INOSITOL 1,4,5-TRISPHOSPHATE JRNL TITL 2 RECEPTOR BINDING CORE IN COMPLEX WITH ITS LIGAND. JRNL REF NATURE V. 420 696 2002 JRNL REFN ISSN 0028-0836 JRNL PMID 12442173 JRNL DOI 10.1038/NATURE01268 REMARK 1 REMARK 2 REMARK 2 RESOLUTION. 2.20 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 : NULL REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.20 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 37.82 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : 2424922.970 REMARK 3 DATA CUTOFF LOW (ABS(F)) : 0.0000 REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 97.1 REMARK 3 NUMBER OF REFLECTIONS : 20935 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) : 0.224 REMARK 3 FREE R VALUE : 0.248 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 9.800 REMARK 3 FREE R VALUE TEST SET COUNT : 2060 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) : 2.20 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.34 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 86.00 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 2745 REMARK 3 BIN R VALUE (WORKING SET) : 0.2260 REMARK 3 BIN FREE R VALUE : 0.2870 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 9.30 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 281 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : 0.017 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 2355 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 24 REMARK 3 SOLVENT ATOMS : 140 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 20.20 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 34.60 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 1.05000 REMARK 3 B22 (A**2) : 0.99000 REMARK 3 B33 (A**2) : -2.04000 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) : NULL REMARK 3 ESD FROM SIGMAA (A) : NULL REMARK 3 LOW RESOLUTION CUTOFF (A) : NULL REMARK 3 REMARK 3 CROSS-VALIDATED ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM C-V LUZZATI PLOT (A) : 0.31 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.23 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.009 REMARK 3 BOND ANGLES (DEGREES) : 1.10 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 21.60 REMARK 3 IMPROPER ANGLES (DEGREES) : 0.63 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) : 1.580 ; 1.500 REMARK 3 MAIN-CHAIN ANGLE (A**2) : 2.550 ; 2.000 REMARK 3 SIDE-CHAIN BOND (A**2) : 2.400 ; 2.000 REMARK 3 SIDE-CHAIN ANGLE (A**2) : 3.550 ; 2.500 REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED : FLAT MODEL REMARK 3 KSOL : 0.37 REMARK 3 BSOL : 41.09 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 : I3P_XPLOR_PAR.TXT REMARK 3 PARAMETER FILE 3 : WATER_REP.PARAM REMARK 3 PARAMETER FILE 4 : NULL REMARK 3 TOPOLOGY FILE 1 : PROTEIN.TOP REMARK 3 TOPOLOGY FILE 2 : I3P_XPLOR_TOP.TXT REMARK 3 TOPOLOGY FILE 3 : WATER_REP.TOP REMARK 3 TOPOLOGY FILE 4 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1N4K COMPLIES WITH FORMAT V. 3.15, 01-DEC-08 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 13-NOV-02. REMARK 100 THE RCSB ID CODE IS RCSB017510. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 12-NOV-01 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 6.0 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : SPRING-8 REMARK 200 BEAMLINE : BL44XU REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.9500 REMARK 200 MONOCHROMATOR : ROTATED-INCLINED DOUBLE REMARK 200 CRYSTAL AS A MONOCHROMETER REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : OXFORD PX210 REMARK 200 INTENSITY-INTEGRATION SOFTWARE : D*TREK REMARK 200 DATA SCALING SOFTWARE : D*TREK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 20991 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.200 REMARK 200 RESOLUTION RANGE LOW (A) : 37.820 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 3.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 97.3 REMARK 200 DATA REDUNDANCY : 6.500 REMARK 200 R MERGE (I) : 0.06600 REMARK 200 R SYM (I) : 0.06600 REMARK 200 FOR THE DATA SET : 14.8000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.20 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.28 REMARK 200 COMPLETENESS FOR SHELL (%) : 80.8 REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : 0.21900 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 8.400 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MAD 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 (%): 48.03 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.37 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: MES, PEG 3350, AMMONIUM FORMATE, REMARK 280 TCEP, DIOXANE, PH 6.0, VAPOR DIFFUSION, HANGING DROP, REMARK 280 TEMPERATURE 295K 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 103.55850 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 103.55850 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 22.05050 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 45.21000 REMARK 290 SMTRY3 5 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 6 -1.000000 0.000000 0.000000 22.05050 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 45.21000 REMARK 290 SMTRY3 6 0.000000 0.000000 1.000000 103.55850 REMARK 290 SMTRY1 7 -1.000000 0.000000 0.000000 22.05050 REMARK 290 SMTRY2 7 0.000000 1.000000 0.000000 45.21000 REMARK 290 SMTRY3 7 0.000000 0.000000 -1.000000 103.55850 REMARK 290 SMTRY1 8 1.000000 0.000000 0.000000 22.05050 REMARK 290 SMTRY2 8 0.000000 -1.000000 0.000000 45.21000 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 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 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 MET A 224 REMARK 465 LYS A 225 REMARK 465 TRP A 226 REMARK 465 SER A 227 REMARK 465 ASP A 228 REMARK 465 ASN A 229 REMARK 465 LYS A 230 REMARK 465 ASP A 231 REMARK 465 ASP A 232 REMARK 465 ILE A 233 REMARK 465 LEU A 234 REMARK 465 LYS A 235 REMARK 465 HIS A 289 REMARK 465 ASP A 290 REMARK 465 PRO A 291 REMARK 465 CYS A 292 REMARK 465 ARG A 293 REMARK 465 GLY A 294 REMARK 465 GLY A 295 REMARK 465 ALA A 296 REMARK 465 GLY A 297 REMARK 465 TYR A 298 REMARK 465 TRP A 299 REMARK 465 ASN A 300 REMARK 465 SER A 301 REMARK 465 PRO A 320 REMARK 465 ASP A 321 REMARK 465 PHE A 322 REMARK 465 GLU A 323 REMARK 465 GLU A 324 REMARK 465 GLU A 325 REMARK 465 CYS A 326 REMARK 465 LEU A 327 REMARK 465 GLU A 328 REMARK 465 PHE A 329 REMARK 465 GLN A 330 REMARK 465 PRO A 331 REMARK 465 SER A 332 REMARK 465 VAL A 333 REMARK 465 ASP A 334 REMARK 465 PRO A 335 REMARK 465 ASP A 336 REMARK 465 GLN A 337 REMARK 465 ASP A 338 REMARK 465 ALA A 339 REMARK 465 SER A 340 REMARK 465 ARG A 341 REMARK 465 SER A 342 REMARK 465 ARG A 343 REMARK 465 LEU A 344 REMARK 465 ARG A 345 REMARK 465 ASN A 346 REMARK 465 ALA A 347 REMARK 465 GLN A 348 REMARK 465 GLU A 349 REMARK 465 LYS A 350 REMARK 465 THR A 373 REMARK 465 THR A 374 REMARK 465 LEU A 375 REMARK 465 ARG A 376 REMARK 465 GLY A 377 REMARK 465 GLY A 378 REMARK 465 ASP A 379 REMARK 465 SER A 380 REMARK 465 LEU A 381 REMARK 465 VAL A 382 REMARK 465 PRO A 383 REMARK 465 ARG A 384 REMARK 465 ASN A 385 REMARK 465 SER A 386 REMARK 465 ASP A 529 REMARK 465 CYS A 530 REMARK 465 GLY A 531 REMARK 465 ASP A 532 REMARK 465 GLY A 533 REMARK 465 PRO A 534 REMARK 465 MET A 535 REMARK 465 LEU A 536 REMARK 465 ARG A 537 REMARK 465 LEU A 538 REMARK 465 GLU A 539 REMARK 465 GLU A 540 REMARK 465 LEU A 541 REMARK 465 GLY A 542 REMARK 465 ASP A 543 REMARK 465 GLN A 544 REMARK 465 ARG A 545 REMARK 465 ARG A 603 REMARK 465 LYS A 604 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 SER A 271 89.17 -157.61 REMARK 500 LYS A 427 32.45 -94.22 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 I3P A 1000 DBREF 1N4K A 224 604 UNP P11881 ITPR1_MOUSE 224 604 SEQRES 1 A 381 MET LYS TRP SER ASP ASN LYS ASP ASP ILE LEU LYS GLY SEQRES 2 A 381 GLY ASP VAL VAL ARG LEU PHE HIS ALA GLU GLN GLU LYS SEQRES 3 A 381 PHE LEU THR CYS ASP GLU HIS ARG LYS LYS GLN HIS VAL SEQRES 4 A 381 PHE LEU ARG THR THR GLY ARG GLN SER ALA THR SER ALA SEQRES 5 A 381 THR SER SER LYS ALA LEU TRP GLU VAL GLU VAL VAL GLN SEQRES 6 A 381 HIS ASP PRO CYS ARG GLY GLY ALA GLY TYR TRP ASN SER SEQRES 7 A 381 LEU PHE ARG PHE LYS HIS LEU ALA THR GLY HIS TYR LEU SEQRES 8 A 381 ALA ALA GLU VAL ASP PRO ASP PHE GLU GLU GLU CYS LEU SEQRES 9 A 381 GLU PHE GLN PRO SER VAL ASP PRO ASP GLN ASP ALA SER SEQRES 10 A 381 ARG SER ARG LEU ARG ASN ALA GLN GLU LYS MET VAL TYR SEQRES 11 A 381 SER LEU VAL SER VAL PRO GLU GLY ASN ASP ILE SER SER SEQRES 12 A 381 ILE PHE GLU LEU ASP PRO THR THR LEU ARG GLY GLY ASP SEQRES 13 A 381 SER LEU VAL PRO ARG ASN SER TYR VAL ARG LEU ARG HIS SEQRES 14 A 381 LEU CYS THR ASN THR TRP VAL HIS SER THR ASN ILE PRO SEQRES 15 A 381 ILE ASP LYS GLU GLU GLU LYS PRO VAL MET LEU LYS ILE SEQRES 16 A 381 GLY THR SER PRO LEU LYS GLU ASP LYS GLU ALA PHE ALA SEQRES 17 A 381 ILE VAL PRO VAL SER PRO ALA GLU VAL ARG ASP LEU ASP SEQRES 18 A 381 PHE ALA ASN ASP ALA SER LYS VAL LEU GLY SER ILE ALA SEQRES 19 A 381 GLY LYS LEU GLU LYS GLY THR ILE THR GLN ASN GLU ARG SEQRES 20 A 381 ARG SER VAL THR LYS LEU LEU GLU ASP LEU VAL TYR PHE SEQRES 21 A 381 VAL THR GLY GLY THR ASN SER GLY GLN ASP VAL LEU GLU SEQRES 22 A 381 VAL VAL PHE SER LYS PRO ASN ARG GLU ARG GLN LYS LEU SEQRES 23 A 381 MET ARG GLU GLN ASN ILE LEU LYS GLN ILE PHE LYS LEU SEQRES 24 A 381 LEU GLN ALA PRO PHE THR ASP CYS GLY ASP GLY PRO MET SEQRES 25 A 381 LEU ARG LEU GLU GLU LEU GLY ASP GLN ARG HIS ALA PRO SEQRES 26 A 381 PHE ARG HIS ILE CYS ARG LEU CYS TYR ARG VAL LEU ARG SEQRES 27 A 381 HIS SER GLN GLN ASP TYR ARG LYS ASN GLN GLU TYR ILE SEQRES 28 A 381 ALA LYS GLN PHE GLY PHE MET GLN LYS GLN ILE GLY TYR SEQRES 29 A 381 ASP VAL LEU ALA GLU ASP THR ILE THR ALA LEU LEU HIS SEQRES 30 A 381 ASN ASN ARG LYS HET I3P A1000 24 HETNAM I3P D-MYO-INOSITOL-1,4,5-TRIPHOSPHATE FORMUL 2 I3P C6 H15 O15 P3 FORMUL 3 HOH *140(H2 O) HELIX 1 1 SER A 271 ALA A 275 5 5 HELIX 2 2 SER A 277 ALA A 280 5 4 HELIX 3 3 ASP A 363 SER A 366 5 4 HELIX 4 4 SER A 436 LYS A 462 1 27 HELIX 5 5 THR A 466 THR A 485 1 20 HELIX 6 6 VAL A 494 SER A 500 5 7 HELIX 7 7 ASN A 503 GLN A 513 1 11 HELIX 8 8 ASN A 514 ALA A 525 1 12 HELIX 9 9 PRO A 526 THR A 528 5 3 HELIX 10 10 HIS A 546 GLN A 565 1 20 HELIX 11 11 TYR A 567 GLY A 586 1 20 HELIX 12 12 ASP A 588 HIS A 600 1 13 SHEET 1 A19 PHE A 430 PRO A 434 0 SHEET 2 A19 VAL A 239 HIS A 244 -1 O ARG A 241 N VAL A 433 SHEET 3 A19 LYS A 249 GLU A 255 1 O LYS A 249 N HIS A 244 SHEET 4 A19 GLN A 260 ARG A 265 -1 N HIS A 261 O ASP A 254 SHEET 5 A19 MET A 415 SER A 421 -1 N LEU A 416 O LEU A 264 SHEET 6 A19 THR A 397 PRO A 405 -1 N TRP A 398 O SER A 421 SHEET 7 A19 ARG A 389 HIS A 392 -1 O LEU A 390 N VAL A 399 SHEET 8 A19 PHE A 368 ASP A 371 -1 O GLU A 369 N ARG A 391 SHEET 9 A19 PHE A 303 HIS A 307 -1 O PHE A 303 N PHE A 368 SHEET 10 A19 TYR A 313 VAL A 318 -1 N LEU A 314 O PHE A 305 SHEET 11 A19 TYR A 353 VAL A 358 1 N SER A 354 O GLU A 317 SHEET 12 A19 MET A 415 SER A 421 -1 O ILE A 418 N LEU A 355 SHEET 13 A19 GLN A 260 ARG A 265 -1 O VAL A 262 N ILE A 418 SHEET 14 A19 LYS A 249 GLU A 255 -1 O PHE A 250 N ARG A 265 SHEET 15 A19 VAL A 239 HIS A 244 1 O LEU A 242 N LEU A 251 SHEET 16 A19 PHE A 430 PRO A 434 -1 N ALA A 431 O PHE A 243 SHEET 17 A19 VAL A 239 HIS A 244 -1 O ARG A 241 N VAL A 433 SHEET 18 A19 TRP A 282 VAL A 286 -1 O TRP A 282 N VAL A 240 SHEET 19 A19 PHE A 303 HIS A 307 -1 O ARG A 304 N GLU A 285 SITE 1 AC1 18 ARG A 265 THR A 267 GLY A 268 ARG A 269 SITE 2 AC1 18 LYS A 508 ARG A 511 TYR A 567 ARG A 568 SITE 3 AC1 18 LYS A 569 HOH A1126 HOH A1128 HOH A1139 SITE 4 AC1 18 HOH A1146 HOH A1148 HOH A1157 HOH A1193 SITE 5 AC1 18 HOH A1198 HOH A1222 CRYST1 44.101 90.420 207.117 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 0.022675 0.000000 0.000000 0.00000 SCALE2 0.000000 0.011060 0.000000 0.00000 SCALE3 0.000000 0.000000 0.004828 0.00000 MASTER 353 0 1 12 19 0 5 6 0 0 0 30 END