HEADER IMMUNE SYSTEM 04-MAR-04 1SK3 TITLE CRYSTAL STRUCTURE OF THE C-TERMINAL PEPTIDOGLYCAN-BINDING TITLE 2 DOMAIN OF HUMAN PEPTIDOGLYCAN RECOGNITION PROTEIN IALPHA COMPND MOL_ID: 1; COMPND 2 MOLECULE: PEPTIDOGLYCAN RECOGNITION PROTEIN I-ALPHA; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: PEPTIDOGLYCAN RECOGNITION PROTEIN INTERMEDIATE COMPND 5 ALPHA, PGRP-I-ALPHA, PGLYRPIALPHA; COMPND 6 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: PGRPIA; 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: PT7-7 KEYWDS ALPHA/BETA MIX, IMMUNE SYSTEM EXPDTA X-RAY DIFFRACTION AUTHOR R.GUAN,E.L.MALCHIODI,W.QIAN,P.SCHUCK,R.A.MARIUZZA REVDAT 2 24-FEB-09 1SK3 1 VERSN REVDAT 1 13-JUL-04 1SK3 0 JRNL AUTH R.GUAN,E.L.MALCHIODI,W.QIAN,P.SCHUCK,R.A.MARIUZZA JRNL TITL CRYSTAL STRUCTURE OF THE C-TERMINAL JRNL TITL 2 PEPTIDOGLYCAN-BINDING DOMAIN OF HUMAN JRNL TITL 3 PEPTIDOGLYCAN RECOGNITION PROTEIN IALPHA JRNL REF J.BIOL.CHEM. V. 279 31873 2004 JRNL REFN ISSN 0021-9258 JRNL PMID 15140887 JRNL DOI 10.1074/JBC.M404920200 REMARK 1 REMARK 2 REMARK 2 RESOLUTION. 2.80 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 : ENGH & HUBER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.80 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 29.63 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : 1047715.810 REMARK 3 DATA CUTOFF LOW (ABS(F)) : 0.0000 REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 100.0 REMARK 3 NUMBER OF REFLECTIONS : 6405 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) : 0.219 REMARK 3 FREE R VALUE : 0.253 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.400 REMARK 3 FREE R VALUE TEST SET COUNT : 346 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : 0.014 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) : 2.80 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.98 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 99.90 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 1042 REMARK 3 BIN R VALUE (WORKING SET) : 0.3290 REMARK 3 BIN FREE R VALUE : NULL REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 BIN FREE R VALUE TEST SET COUNT : NULL REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : NULL REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1286 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 7 REMARK 3 SOLVENT ATOMS : 11 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 58.90 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 33.60 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 2.35000 REMARK 3 B22 (A**2) : 2.35000 REMARK 3 B33 (A**2) : -4.70000 REMARK 3 B12 (A**2) : 7.23000 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) : 0.35 REMARK 3 ESD FROM SIGMAA (A) : 0.52 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) : 0.45 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.59 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.008 REMARK 3 BOND ANGLES (DEGREES) : 1.50 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 24.00 REMARK 3 IMPROPER ANGLES (DEGREES) : 0.95 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 : 0.36 REMARK 3 BSOL : 34.53 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 : ION.PARAM REMARK 3 PARAMETER FILE 4 : NULL REMARK 3 TOPOLOGY FILE 1 : PROTEIN.TOP REMARK 3 TOPOLOGY FILE 2 : NULL REMARK 3 TOPOLOGY FILE 3 : NULL REMARK 3 TOPOLOGY FILE 4 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1SK3 COMPLIES WITH FORMAT V. 3.15, 01-DEC-08 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 05-MAR-04. REMARK 100 THE RCSB ID CODE IS RCSB021779. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 09-NOV-03 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 8.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : NSLS REMARK 200 BEAMLINE : X25 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 : SI REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : ADSC QUANTUM 4 REMARK 200 INTENSITY-INTEGRATION SOFTWARE : HKL-2000 REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 6416 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.800 REMARK 200 RESOLUTION RANGE LOW (A) : 30.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 100.0 REMARK 200 DATA REDUNDANCY : NULL REMARK 200 R MERGE (I) : 0.13100 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) : 2.80 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.90 REMARK 200 COMPLETENESS FOR SHELL (%) : 100.0 REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : 0.50500 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: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: AMORE REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 64.36 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 3.45 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PEG-MME 2000, NICKLEOUS SULFATE, REMARK 280 TRIS, PH 8.5, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 298K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 32 2 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -Y,X-Y,Z+2/3 REMARK 290 3555 -X+Y,-X,Z+1/3 REMARK 290 4555 Y,X,-Z REMARK 290 5555 X-Y,-Y,-Z+1/3 REMARK 290 6555 -X,-X+Y,-Z+2/3 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 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 2 0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 27.66400 REMARK 290 SMTRY1 3 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 3 -0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 13.83200 REMARK 290 SMTRY1 4 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 4 0.866025 0.500000 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 0.00000 REMARK 290 SMTRY2 5 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 5 0.000000 0.000000 -1.000000 13.83200 REMARK 290 SMTRY1 6 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 6 -0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 6 0.000000 0.000000 -1.000000 27.66400 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 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 ND2 ASN A 180 ND2 ASN A 180 6765 2.01 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 PRO A 200 C - N - CA ANGL. DEV. = -9.1 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 PRO A 179 -178.06 -64.23 REMARK 500 ILE A 181 93.88 31.86 REMARK 500 GLU A 188 60.03 68.19 REMARK 500 ALA A 210 -5.47 63.93 REMARK 500 ASN A 236 37.61 70.46 REMARK 500 ASP A 239 -162.59 -162.23 REMARK 500 GLN A 248 5.08 -69.21 REMARK 500 HIS A 259 1.97 -69.48 REMARK 500 SER A 324 143.85 -170.33 REMARK 500 HIS A 338 10.19 58.34 REMARK 500 REMARK 500 REMARK: NULL REMARK 620 REMARK 620 METAL COORDINATION REMARK 620 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 620 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE): REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 NI A 21 NI REMARK 620 N RES CSSEQI ATOM REMARK 620 1 VAL A 177 O REMARK 620 2 ASP A 296 OD2 110.7 REMARK 620 3 HOH A 1 O 74.5 85.1 REMARK 620 4 VAL A 177 N 71.8 176.4 93.2 REMARK 620 5 HIS A 338 NE2 139.3 94.0 76.0 82.5 REMARK 620 N 1 2 3 4 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NI A 21 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NI A 22 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 342 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1OHT RELATED DB: PDB REMARK 900 PEPTIDOGLYCAN RECOGNITION PROTEIN-LB DBREF 1SK3 A 177 341 UNP Q96LB9 PGRP3_HUMAN 177 341 SEQRES 1 A 165 VAL CYS PRO ASN ILE ILE LYS ARG SER ALA TRP GLU ALA SEQRES 2 A 165 ARG GLU THR HIS CYS PRO LYS MET ASN LEU PRO ALA LYS SEQRES 3 A 165 TYR VAL ILE ILE ILE HIS THR ALA GLY THR SER CYS THR SEQRES 4 A 165 VAL SER THR ASP CYS GLN THR VAL VAL ARG ASN ILE GLN SEQRES 5 A 165 SER PHE HIS MET ASP THR ARG ASN PHE CYS ASP ILE GLY SEQRES 6 A 165 TYR HIS PHE LEU VAL GLY GLN ASP GLY GLY VAL TYR GLU SEQRES 7 A 165 GLY VAL GLY TRP HIS ILE GLN GLY SER HIS THR TYR GLY SEQRES 8 A 165 PHE ASN ASP ILE ALA LEU GLY ILE ALA PHE ILE GLY TYR SEQRES 9 A 165 PHE VAL GLU LYS PRO PRO ASN ALA ALA ALA LEU GLU ALA SEQRES 10 A 165 ALA GLN ASP LEU ILE GLN CYS ALA VAL VAL GLU GLY TYR SEQRES 11 A 165 LEU THR PRO ASN TYR LEU LEU MET GLY HIS SER ASP VAL SEQRES 12 A 165 VAL ASN ILE LEU SER PRO GLY GLN ALA LEU TYR ASN ILE SEQRES 13 A 165 ILE SER THR TRP PRO HIS PHE LYS HIS HET NI A 21 1 HET NI A 22 1 HET SO4 A 342 5 HETNAM NI NICKEL (II) ION HETNAM SO4 SULFATE ION FORMUL 2 NI 2(NI 2+) FORMUL 4 SO4 O4 S 2- FORMUL 5 HOH *11(H2 O) HELIX 1 1 VAL A 216 THR A 234 1 19 HELIX 2 2 ASN A 287 GLU A 304 1 18 HELIX 3 3 SER A 317 VAL A 319 5 3 HELIX 4 4 GLY A 326 SER A 334 1 9 SHEET 1 A 5 VAL A 252 GLU A 254 0 SHEET 2 A 5 PHE A 244 VAL A 246 -1 N LEU A 245 O TYR A 253 SHEET 3 A 5 ALA A 272 PHE A 277 1 O ALA A 276 N PHE A 244 SHEET 4 A 5 ALA A 201 HIS A 208 1 N ILE A 205 O ILE A 275 SHEET 5 A 5 LEU A 307 GLY A 315 1 O THR A 308 N ALA A 201 SSBOND 1 CYS A 178 CYS A 300 1555 1555 2.04 SSBOND 2 CYS A 194 CYS A 238 1555 1555 2.04 SSBOND 3 CYS A 214 CYS A 220 1555 1555 2.04 LINK NI NI A 21 O VAL A 177 1555 1555 2.09 LINK NI NI A 21 OD2 ASP A 296 1555 1555 2.13 LINK NI NI A 21 O HOH A 1 1555 1555 2.45 LINK NI NI A 21 N VAL A 177 1555 1555 2.58 LINK NI NI A 21 NE2 HIS A 338 1555 6764 2.14 LINK NI NI A 22 NE2 HIS A 341 1555 6764 2.24 CISPEP 1 SER A 324 PRO A 325 0 0.42 SITE 1 AC1 4 HOH A 1 VAL A 177 ASP A 296 HIS A 338 SITE 1 AC2 2 GLU A 292 HIS A 341 SITE 1 AC3 2 HIS A 193 ARG A 235 CRYST1 102.632 102.632 41.496 90.00 90.00 120.00 P 32 2 1 6 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 0.009744 0.005625 0.000000 0.00000 SCALE2 0.000000 0.011251 0.000000 0.00000 SCALE3 0.000000 0.000000 0.024099 0.00000