HEADER HYDROLASE 20-FEB-07 2EF1 TITLE CRYSTAL STRUCTURE OF THE EXTRACELLULAR DOMAIN OF HUMAN CD38 COMPND MOL_ID: 1; COMPND 2 MOLECULE: ADP-RIBOSYL CYCLASE 1; COMPND 3 CHAIN: A, B; COMPND 4 FRAGMENT: EXTRACELLULAR DOMAIN; COMPND 5 SYNONYM: CYCLIC ADP-RIBOSE HYDROLASE 1, CADPR HYDROLASE 1, LYMPHOCYTE COMPND 6 DIFFERENTIATION ANTIGEN CD38, T10, ACUTE LYMPHOBLASTIC LEUKEMIA CELLS COMPND 7 ANTIGEN CD38; COMPND 8 EC: 3.2.2.5; COMPND 9 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: HOMO SAPIENS; SOURCE 3 ORGANISM_COMMON: HUMAN; SOURCE 4 ORGANISM_TAXID: 9606; SOURCE 5 GENE: CD38; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 8 EXPRESSION_SYSTEM_STRAIN: JM109(DE3); SOURCE 9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 10 EXPRESSION_SYSTEM_PLASMID: PMAL-CR1 KEYWDS HYDROLASE, CELL SUEFACE ANTIGEN, STRUCTURAL GENOMICS, NPPSFA, KEYWDS 2 NATIONAL PROJECT ON PROTEIN STRUCTURAL AND FUNCTIONAL ANALYSES, KEYWDS 3 RIKEN STRUCTURAL GENOMICS/PROTEOMICS INITIATIVE, RSGI EXPDTA X-RAY DIFFRACTION AUTHOR M.KUKIMOTO-NIINO,O.NUREKI,K.MURAYAMA,M.SHIROUZU,T.KATADA,M.HARA- AUTHOR 2 YOKOYAMA,S.YOKOYAMA,RIKEN STRUCTURAL GENOMICS/PROTEOMICS INITIATIVE AUTHOR 3 (RSGI) REVDAT 3 25-OCT-23 2EF1 1 REMARK REVDAT 2 24-FEB-09 2EF1 1 VERSN REVDAT 1 27-FEB-07 2EF1 0 SPRSDE 27-FEB-07 2EF1 2DF1 JRNL AUTH M.KUKIMOTO-NIINO,O.NUREKI,K.MURAYAMA,M.SHIROUZU,T.KATADA, JRNL AUTH 2 M.HARA-YOKOYAMA,S.YOKOYAMA JRNL TITL CRYSTAL STRUCTURE OF THE EXTRACELLULAR DOMAIN OF HUMAN CD38 JRNL REF TO BE PUBLISHED JRNL REFN REMARK 2 REMARK 2 RESOLUTION. 2.40 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CNS 1.1 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) : 2.40 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 45.57 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : 1217355.380 REMARK 3 DATA CUTOFF LOW (ABS(F)) : 0.0000 REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 93.2 REMARK 3 NUMBER OF REFLECTIONS : 21492 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) : 0.203 REMARK 3 FREE R VALUE : 0.256 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 9.900 REMARK 3 FREE R VALUE TEST SET COUNT : 2133 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : 0.006 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) : 2.40 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.55 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 77.40 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 2674 REMARK 3 BIN R VALUE (WORKING SET) : 0.2550 REMARK 3 BIN FREE R VALUE : 0.3610 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 9.80 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 290 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : 0.021 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 3973 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 30 REMARK 3 SOLVENT ATOMS : 182 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 26.50 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 38.70 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 10.36000 REMARK 3 B22 (A**2) : -13.11000 REMARK 3 B33 (A**2) : 2.75000 REMARK 3 B12 (A**2) : 0.00000 REMARK 3 B13 (A**2) : -2.31000 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) : 0.25 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) : 0.37 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.41 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) : 21.60 REMARK 3 IMPROPER ANGLES (DEGREES) : 0.760 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 : 0.31 REMARK 3 BSOL : 27.74 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 : EPE_XPLOR_PAR.TXT REMARK 3 PARAMETER FILE 4 : NULL REMARK 3 TOPOLOGY FILE 1 : PROTEIN.TOP REMARK 3 TOPOLOGY FILE 2 : WATER.TOP REMARK 3 TOPOLOGY FILE 3 : EPE_XPLOR_TOP.TXT REMARK 3 TOPOLOGY FILE 4 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 2EF1 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 21-FEB-07. REMARK 100 THE DEPOSITION ID IS D_1000026584. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 11-FEB-00 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 7.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : SPRING-8 REMARK 200 BEAMLINE : BL44B2 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.0 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : MARRESEARCH REMARK 200 INTENSITY-INTEGRATION SOFTWARE : HKL-2000 REMARK 200 DATA SCALING SOFTWARE : HKL-2000 REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 21501 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.400 REMARK 200 RESOLUTION RANGE LOW (A) : 50.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : -3.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 93.9 REMARK 200 DATA REDUNDANCY : 3.082 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.06000 REMARK 200 FOR THE DATA SET : 17.9641 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.40 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.49 REMARK 200 COMPLETENESS FOR SHELL (%) : 81.4 REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : 0.19400 REMARK 200 FOR SHELL : 4.627 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: MOLREP REMARK 200 STARTING MODEL: PDB ENTRY 1YH3 REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 50.54 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.49 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 20% PEG 10000, 0.1M HEPES, 0.1M SODIUM REMARK 280 IODIDE, PH 7.5, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 293K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 1 21 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,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 25.58200 REMARK 290 SMTRY3 2 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 GLU A 292 REMARK 465 ASP A 293 REMARK 465 SER A 294 REMARK 465 SER A 295 REMARK 465 CYS A 296 REMARK 465 THR A 297 REMARK 465 SER A 298 REMARK 465 GLU A 299 REMARK 465 ILE A 300 REMARK 465 GLY B 245 REMARK 465 GLY B 246 REMARK 465 ARG B 247 REMARK 465 GLU B 248 REMARK 465 ASP B 249 REMARK 465 SER B 250 REMARK 465 ASN B 290 REMARK 465 PRO B 291 REMARK 465 GLU B 292 REMARK 465 ASP B 293 REMARK 465 SER B 294 REMARK 465 SER B 295 REMARK 465 CYS B 296 REMARK 465 THR B 297 REMARK 465 SER B 298 REMARK 465 GLU B 299 REMARK 465 ILE B 300 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 PRO A 98 15.01 -64.82 REMARK 500 PRO A 118 108.64 -49.16 REMARK 500 ILE A 128 42.93 -154.48 REMARK 500 ASP A 179 -71.07 -106.58 REMARK 500 ASN A 182 53.06 -92.07 REMARK 500 ASP A 202 -113.90 59.64 REMARK 500 VAL A 225 -42.08 -135.47 REMARK 500 ASN A 290 56.20 -142.42 REMARK 500 PRO B 98 19.47 -62.98 REMARK 500 PRO B 118 108.08 -44.59 REMARK 500 ILE B 128 46.92 -161.72 REMARK 500 ARG B 140 1.06 -59.76 REMARK 500 ASN B 164 25.27 47.19 REMARK 500 ASP B 179 -68.18 -109.62 REMARK 500 ASN B 182 46.87 -84.65 REMARK 500 ASP B 202 -110.72 58.23 REMARK 500 ASN B 219 38.85 -88.35 REMARK 500 VAL B 225 -43.78 -137.36 REMARK 500 PRO B 257 -80.28 -37.00 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 EPE A 301 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE EPE B 302 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: SRZ001000050.1 RELATED DB: TARGETDB DBREF 2EF1 A 45 300 UNP P28907 CD38_HUMAN 45 300 DBREF 2EF1 B 45 300 UNP P28907 CD38_HUMAN 45 300 SEQADV 2EF1 THR A 49 UNP P28907 GLN 49 SEE REMARK 999 SEQADV 2EF1 THR B 49 UNP P28907 GLN 49 SEE REMARK 999 SEQRES 1 A 256 ARG TRP ARG GLN THR TRP SER GLY PRO GLY THR THR LYS SEQRES 2 A 256 ARG PHE PRO GLU THR VAL LEU ALA ARG CYS VAL LYS TYR SEQRES 3 A 256 THR GLU ILE HIS PRO GLU MET ARG HIS VAL ASP CYS GLN SEQRES 4 A 256 SER VAL TRP ASP ALA PHE LYS GLY ALA PHE ILE SER LYS SEQRES 5 A 256 HIS PRO CYS ASN ILE THR GLU GLU ASP TYR GLN PRO LEU SEQRES 6 A 256 MET LYS LEU GLY THR GLN THR VAL PRO CYS ASN LYS ILE SEQRES 7 A 256 LEU LEU TRP SER ARG ILE LYS ASP LEU ALA HIS GLN PHE SEQRES 8 A 256 THR GLN VAL GLN ARG ASP MET PHE THR LEU GLU ASP THR SEQRES 9 A 256 LEU LEU GLY TYR LEU ALA ASP ASP LEU THR TRP CYS GLY SEQRES 10 A 256 GLU PHE ASN THR SER LYS ILE ASN TYR GLN SER CYS PRO SEQRES 11 A 256 ASP TRP ARG LYS ASP CYS SER ASN ASN PRO VAL SER VAL SEQRES 12 A 256 PHE TRP LYS THR VAL SER ARG ARG PHE ALA GLU ALA ALA SEQRES 13 A 256 CYS ASP VAL VAL HIS VAL MET LEU ASN GLY SER ARG SER SEQRES 14 A 256 LYS ILE PHE ASP LYS ASN SER THR PHE GLY SER VAL GLU SEQRES 15 A 256 VAL HIS ASN LEU GLN PRO GLU LYS VAL GLN THR LEU GLU SEQRES 16 A 256 ALA TRP VAL ILE HIS GLY GLY ARG GLU ASP SER ARG ASP SEQRES 17 A 256 LEU CYS GLN ASP PRO THR ILE LYS GLU LEU GLU SER ILE SEQRES 18 A 256 ILE SER LYS ARG ASN ILE GLN PHE SER CYS LYS ASN ILE SEQRES 19 A 256 TYR ARG PRO ASP LYS PHE LEU GLN CYS VAL LYS ASN PRO SEQRES 20 A 256 GLU ASP SER SER CYS THR SER GLU ILE SEQRES 1 B 256 ARG TRP ARG GLN THR TRP SER GLY PRO GLY THR THR LYS SEQRES 2 B 256 ARG PHE PRO GLU THR VAL LEU ALA ARG CYS VAL LYS TYR SEQRES 3 B 256 THR GLU ILE HIS PRO GLU MET ARG HIS VAL ASP CYS GLN SEQRES 4 B 256 SER VAL TRP ASP ALA PHE LYS GLY ALA PHE ILE SER LYS SEQRES 5 B 256 HIS PRO CYS ASN ILE THR GLU GLU ASP TYR GLN PRO LEU SEQRES 6 B 256 MET LYS LEU GLY THR GLN THR VAL PRO CYS ASN LYS ILE SEQRES 7 B 256 LEU LEU TRP SER ARG ILE LYS ASP LEU ALA HIS GLN PHE SEQRES 8 B 256 THR GLN VAL GLN ARG ASP MET PHE THR LEU GLU ASP THR SEQRES 9 B 256 LEU LEU GLY TYR LEU ALA ASP ASP LEU THR TRP CYS GLY SEQRES 10 B 256 GLU PHE ASN THR SER LYS ILE ASN TYR GLN SER CYS PRO SEQRES 11 B 256 ASP TRP ARG LYS ASP CYS SER ASN ASN PRO VAL SER VAL SEQRES 12 B 256 PHE TRP LYS THR VAL SER ARG ARG PHE ALA GLU ALA ALA SEQRES 13 B 256 CYS ASP VAL VAL HIS VAL MET LEU ASN GLY SER ARG SER SEQRES 14 B 256 LYS ILE PHE ASP LYS ASN SER THR PHE GLY SER VAL GLU SEQRES 15 B 256 VAL HIS ASN LEU GLN PRO GLU LYS VAL GLN THR LEU GLU SEQRES 16 B 256 ALA TRP VAL ILE HIS GLY GLY ARG GLU ASP SER ARG ASP SEQRES 17 B 256 LEU CYS GLN ASP PRO THR ILE LYS GLU LEU GLU SER ILE SEQRES 18 B 256 ILE SER LYS ARG ASN ILE GLN PHE SER CYS LYS ASN ILE SEQRES 19 B 256 TYR ARG PRO ASP LYS PHE LEU GLN CYS VAL LYS ASN PRO SEQRES 20 B 256 GLU ASP SER SER CYS THR SER GLU ILE HET EPE A 301 15 HET EPE B 302 15 HETNAM EPE 4-(2-HYDROXYETHYL)-1-PIPERAZINE ETHANESULFONIC ACID HETSYN EPE HEPES FORMUL 3 EPE 2(C8 H18 N2 O4 S) FORMUL 5 HOH *182(H2 O) HELIX 1 1 ARG A 58 HIS A 74 1 17 HELIX 2 2 PRO A 75 ARG A 78 5 4 HELIX 3 3 ASP A 81 ILE A 94 1 14 HELIX 4 4 THR A 102 GLY A 113 1 12 HELIX 5 5 PRO A 118 LYS A 121 5 4 HELIX 6 6 ILE A 128 GLN A 139 1 12 HELIX 7 7 THR A 144 ASP A 147 5 4 HELIX 8 8 THR A 148 ASP A 155 1 8 HELIX 9 9 ASN A 183 ALA A 200 1 18 HELIX 10 10 SER A 220 VAL A 225 1 6 HELIX 11 11 GLU A 226 LEU A 230 5 5 HELIX 12 12 ASP A 252 GLN A 255 5 4 HELIX 13 13 ASP A 256 ARG A 269 1 14 HELIX 14 14 ARG A 280 ASN A 290 1 11 HELIX 15 15 ARG B 58 HIS B 74 1 17 HELIX 16 16 PRO B 75 ARG B 78 5 4 HELIX 17 17 ASP B 81 ILE B 94 1 14 HELIX 18 18 THR B 102 ASP B 105 5 4 HELIX 19 19 TYR B 106 GLY B 113 1 8 HELIX 20 20 ILE B 128 GLN B 139 1 12 HELIX 21 21 THR B 144 ASP B 147 5 4 HELIX 22 22 THR B 148 ASP B 155 1 8 HELIX 23 23 ASN B 183 ALA B 199 1 17 HELIX 24 24 SER B 220 VAL B 225 1 6 HELIX 25 25 VAL B 225 LEU B 230 1 6 HELIX 26 26 ASP B 252 GLN B 255 5 4 HELIX 27 27 ASP B 256 ARG B 269 1 14 HELIX 28 28 ARG B 280 LYS B 289 1 10 SHEET 1 A 2 GLY A 52 PRO A 53 0 SHEET 2 A 2 SER A 172 CYS A 173 -1 O CYS A 173 N GLY A 52 SHEET 1 B 4 LEU A 123 SER A 126 0 SHEET 2 B 4 ASP A 202 ASN A 209 1 O HIS A 205 N LEU A 124 SHEET 3 B 4 VAL A 235 ILE A 243 1 O TRP A 241 N LEU A 208 SHEET 4 B 4 GLN A 272 ILE A 278 1 O SER A 274 N ALA A 240 SHEET 1 C 2 GLY B 52 PRO B 53 0 SHEET 2 C 2 SER B 172 CYS B 173 -1 O CYS B 173 N GLY B 52 SHEET 1 D 4 LEU B 123 SER B 126 0 SHEET 2 D 4 ASP B 202 ASN B 209 1 O HIS B 205 N LEU B 124 SHEET 3 D 4 VAL B 235 ILE B 243 1 O TRP B 241 N LEU B 208 SHEET 4 D 4 GLN B 272 ILE B 278 1 O SER B 274 N ALA B 240 SSBOND 1 CYS A 67 CYS A 82 1555 1555 2.04 SSBOND 2 CYS A 99 CYS A 180 1555 1555 2.03 SSBOND 3 CYS A 119 CYS A 201 1555 1555 2.04 SSBOND 4 CYS A 160 CYS A 173 1555 1555 2.04 SSBOND 5 CYS A 254 CYS A 275 1555 1555 2.03 SSBOND 6 CYS B 67 CYS B 82 1555 1555 2.03 SSBOND 7 CYS B 99 CYS B 180 1555 1555 2.03 SSBOND 8 CYS B 119 CYS B 201 1555 1555 2.04 SSBOND 9 CYS B 160 CYS B 173 1555 1555 2.03 SSBOND 10 CYS B 254 CYS B 275 1555 1555 2.03 SITE 1 AC1 7 ARG A 127 LEU A 157 THR A 158 SER A 220 SITE 2 AC1 7 THR A 221 HOH A 345 HOH A 355 SITE 1 AC2 6 ARG B 127 LEU B 157 SER B 220 THR B 221 SITE 2 AC2 6 HOH B 340 HOH B 347 CRYST1 57.593 51.164 101.135 90.00 97.53 90.00 P 1 21 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 0.017363 0.000000 0.002294 0.00000 SCALE2 0.000000 0.019545 0.000000 0.00000 SCALE3 0.000000 0.000000 0.009974 0.00000