HEADER CELL ADHESION 08-MAR-11 3R0N TITLE CRYSTAL STRUCTURE OF THE IMMUNOGLOBULIN VARIABLE DOMAIN OF NECTIN-2 COMPND MOL_ID: 1; COMPND 2 MOLECULE: POLIOVIRUS RECEPTOR-RELATED PROTEIN 2; COMPND 3 CHAIN: A; COMPND 4 FRAGMENT: IG-LIKE V-TYPE DOMAIN RESIDUES 32-158; COMPND 5 SYNONYM: HERPES VIRUS ENTRY MEDIATOR B, HERPESVIRUS ENTRY MEDIATOR B, COMPND 6 HVEB, NECTIN-2; COMPND 7 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: HVEB, PRR2, PVRL2; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; 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: PET3A KEYWDS IG-DOMAIN, CELL-ADHESION MOLECULE, VIRUS ENTRY RECEPTOR, STRUCTURAL KEYWDS 2 GENOMICS, PSI-BIOLOGY, NEW YORK STRUCTURAL GENOMICS RESEARCH KEYWDS 3 CONSORTIUM, NYSGRC, CELL ADHESION EXPDTA X-RAY DIFFRACTION AUTHOR U.A.RAMAGOPAL,D.SAMANTA,S.G.NATHENSON,S.C.ALMO,NEW YORK STRUCTURAL AUTHOR 2 GENOMICS RESEARCH CONSORTIUM (NYSGRC),ATOMS-TO-ANIMALS: THE IMMUNE AUTHOR 3 FUNCTION NETWORK (IFN) REVDAT 5 07-NOV-12 3R0N 1 REMARK REVDAT 4 03-OCT-12 3R0N 1 JRNL REVDAT 3 12-SEP-12 3R0N 1 AUTHOR REVDAT 2 05-SEP-12 3R0N 1 JRNL VERSN REVDAT 1 27-APR-11 3R0N 0 JRNL AUTH D.SAMANTA,U.A.RAMAGOPAL,R.RUBINSTEIN,V.VIGDOROVICH, JRNL AUTH 2 S.G.NATHENSON,S.C.ALMO JRNL TITL STRUCTURE OF NECTIN-2 REVEALS DETERMINANTS OF HOMOPHILIC AND JRNL TITL 2 HETEROPHILIC INTERACTIONS THAT CONTROL CELL-CELL ADHESION. JRNL REF PROC.NATL.ACAD.SCI.USA V. 109 14836 2012 JRNL REFN ISSN 0027-8424 JRNL PMID 22927415 JRNL DOI 10.1073/PNAS.1212912109 REMARK 2 REMARK 2 RESOLUTION. 1.30 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC 5.5.0109 REMARK 3 AUTHORS : MURSHUDOV,VAGIN,DODSON REMARK 3 REMARK 3 REFINEMENT TARGET : MAXIMUM LIKELIHOOD REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.30 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 28.90 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 97.0 REMARK 3 NUMBER OF REFLECTIONS : 28078 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) : 0.153 REMARK 3 R VALUE (WORKING SET) : 0.152 REMARK 3 FREE R VALUE : 0.173 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.100 REMARK 3 FREE R VALUE TEST SET COUNT : 1423 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) : 1.30 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.33 REMARK 3 REFLECTION IN BIN (WORKING SET) : 1279 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 65.09 REMARK 3 BIN R VALUE (WORKING SET) : 0.2080 REMARK 3 BIN FREE R VALUE SET COUNT : 73 REMARK 3 BIN FREE R VALUE : 0.2510 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 980 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 2 REMARK 3 SOLVENT ATOMS : 134 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 18.26 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 0.16000 REMARK 3 B22 (A**2) : 0.16000 REMARK 3 B33 (A**2) : -0.32000 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): 0.058 REMARK 3 ESU BASED ON FREE R VALUE (A): 0.050 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.025 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 1.233 REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : 0.974 REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : 0.972 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES COUNT RMS WEIGHT REMARK 3 BOND LENGTHS REFINED ATOMS (A): 1148 ; 0.009 ; 0.022 REMARK 3 BOND LENGTHS OTHERS (A): NULL ; NULL ; NULL REMARK 3 BOND ANGLES REFINED ATOMS (DEGREES): 1588 ; 1.310 ; 1.960 REMARK 3 BOND ANGLES OTHERS (DEGREES): NULL ; NULL ; NULL REMARK 3 TORSION ANGLES, PERIOD 1 (DEGREES): 156 ; 6.664 ; 5.000 REMARK 3 TORSION ANGLES, PERIOD 2 (DEGREES): 50 ;38.698 ;24.400 REMARK 3 TORSION ANGLES, PERIOD 3 (DEGREES): 183 ;13.047 ;15.000 REMARK 3 TORSION ANGLES, PERIOD 4 (DEGREES): 7 ;11.320 ;15.000 REMARK 3 CHIRAL-CENTER RESTRAINTS (A**3): 170 ; 0.079 ; 0.200 REMARK 3 GENERAL PLANES REFINED ATOMS (A): 928 ; 0.008 ; 0.022 REMARK 3 GENERAL PLANES OTHERS (A): NULL ; NULL ; NULL 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): 727 ; 1.270 ; 1.500 REMARK 3 MAIN-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE REFINED ATOMS (A**2): 1199 ; 2.120 ; 2.000 REMARK 3 SIDE-CHAIN BOND REFINED ATOMS (A**2): 421 ; 2.757 ; 3.000 REMARK 3 SIDE-CHAIN ANGLE REFINED ATOMS (A**2): 388 ; 4.364 ; 4.500 REMARK 3 REMARK 3 ANISOTROPIC THERMAL FACTOR RESTRAINTS. COUNT RMS WEIGHT REMARK 3 RIGID-BOND RESTRAINTS (A**2): 1148 ; 1.204 ; 3.000 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 : MASK REMARK 3 PARAMETERS FOR MASK CALCULATION REMARK 3 VDW PROBE RADIUS : 1.40 REMARK 3 ION PROBE RADIUS : 0.80 REMARK 3 SHRINKAGE RADIUS : 0.80 REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: REMARK 3 HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS U VALUES : REMARK 3 REFINED INDIVIDUALLY : REMARK 3 SYMMETRY VIOLATING CLASH FOUND BETWEEN ONE OF THE ROTAMERS (~ 50% REMARK 3 OCCUPANCY) OF TRP-155. REMARK 4 REMARK 4 3R0N COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 10-MAR-11. REMARK 100 THE RCSB ID CODE IS RCSB064340. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 28-JAN-11 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 : X29A REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : NULL REMARK 200 WAVELENGTH OR RANGE (A) : 0.9793 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : ADSC QUANTUM 315 REMARK 200 INTENSITY-INTEGRATION SOFTWARE : HKL-3000 REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 28989 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.300 REMARK 200 RESOLUTION RANGE LOW (A) : 28.900 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 100.0 REMARK 200 DATA REDUNDANCY : 14.200 REMARK 200 R MERGE (I) : 0.04900 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 12.3000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.30 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.32 REMARK 200 COMPLETENESS FOR SHELL (%) : 99.9 REMARK 200 DATA REDUNDANCY IN SHELL : 7.30 REMARK 200 R MERGE FOR SHELL (I) : 0.53500 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: 1NEU REMARK 200 SOFTWARE USED: PHASER REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 39.51 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.03 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 0.2 M MGCL2.6H20, 0.1M TRIS REMARK 280 HYDROCHLORIDE PH 8.5, 30% PEG 4000, VAPOR DIFFUSION, SITTING REMARK 280 DROP, TEMPERATURE 298K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 41 21 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+1/2,X+1/2,Z+1/4 REMARK 290 4555 Y+1/2,-X+1/2,Z+3/4 REMARK 290 5555 -X+1/2,Y+1/2,-Z+1/4 REMARK 290 6555 X+1/2,-Y+1/2,-Z+3/4 REMARK 290 7555 Y,X,-Z REMARK 290 8555 -Y,-X,-Z+1/2 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 33.77200 REMARK 290 SMTRY1 3 0.000000 -1.000000 0.000000 28.98200 REMARK 290 SMTRY2 3 1.000000 0.000000 0.000000 28.98200 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 16.88600 REMARK 290 SMTRY1 4 0.000000 1.000000 0.000000 28.98200 REMARK 290 SMTRY2 4 -1.000000 0.000000 0.000000 28.98200 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 50.65800 REMARK 290 SMTRY1 5 -1.000000 0.000000 0.000000 28.98200 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 28.98200 REMARK 290 SMTRY3 5 0.000000 0.000000 -1.000000 16.88600 REMARK 290 SMTRY1 6 1.000000 0.000000 0.000000 28.98200 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 28.98200 REMARK 290 SMTRY3 6 0.000000 0.000000 -1.000000 50.65800 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 0.00000 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 33.77200 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: DIMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 2260 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 12400 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -36.0 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 350 BIOMT1 2 0.000000 1.000000 0.000000 0.00000 REMARK 350 BIOMT2 2 1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT3 2 0.000000 0.000000 -1.000000 67.54400 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 CH2 TRP A 155 LIES ON A SPECIAL POSITION. 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 94 33.15 -81.46 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 MG A 201 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HOH A 192 O REMARK 620 2 HOH A 177 O 85.9 REMARK 620 3 PRO A 94 O 93.7 97.5 REMARK 620 4 HOH A 196 O 90.1 173.8 87.5 REMARK 620 5 HOH A 173 O 88.4 88.5 173.7 86.6 REMARK 620 6 HOH A 174 O 172.4 88.4 82.1 96.0 96.4 REMARK 620 N 1 2 3 4 5 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG A 201 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CL A 203 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: NYSGRC-005598 RELATED DB: TARGETDB DBREF 3R0N A 32 158 UNP Q92692 PVRL2_HUMAN 32 158 SEQADV 3R0N MET A 31 UNP Q92692 INITIATING METHIONINE SEQRES 1 A 128 MET GLN ASP VAL ARG VAL GLN VAL LEU PRO GLU VAL ARG SEQRES 2 A 128 GLY GLN LEU GLY GLY THR VAL GLU LEU PRO CYS HIS LEU SEQRES 3 A 128 LEU PRO PRO VAL PRO GLY LEU TYR ILE SER LEU VAL THR SEQRES 4 A 128 TRP GLN ARG PRO ASP ALA PRO ALA ASN HIS GLN ASN VAL SEQRES 5 A 128 ALA ALA PHE HIS PRO LYS MET GLY PRO SER PHE PRO SER SEQRES 6 A 128 PRO LYS PRO GLY SER GLU ARG LEU SER PHE VAL SER ALA SEQRES 7 A 128 LYS GLN SER THR GLY GLN ASP THR GLU ALA GLU LEU GLN SEQRES 8 A 128 ASP ALA THR LEU ALA LEU HIS GLY LEU THR VAL GLU ASP SEQRES 9 A 128 GLU GLY ASN TYR THR CYS GLU PHE ALA THR PHE PRO LYS SEQRES 10 A 128 GLY SER VAL ARG GLY MET THR TRP LEU ARG VAL HET MG A 201 1 HET CL A 203 1 HETNAM MG MAGNESIUM ION HETNAM CL CHLORIDE ION FORMUL 2 MG MG 2+ FORMUL 3 CL CL 1- FORMUL 4 HOH *134(H2 O) HELIX 1 1 PRO A 76 HIS A 79 5 4 HELIX 2 2 GLY A 99 GLU A 101 5 3 HELIX 3 3 THR A 131 GLU A 135 5 5 SHEET 1 A 2 ARG A 35 GLN A 37 0 SHEET 2 A 2 HIS A 55 LEU A 57 -1 O HIS A 55 N GLN A 37 SHEET 1 B 6 GLU A 41 ARG A 43 0 SHEET 2 B 6 GLY A 148 ARG A 157 1 O ARG A 157 N VAL A 42 SHEET 3 B 6 GLY A 136 PHE A 145 -1 N GLY A 136 O LEU A 156 SHEET 4 B 6 TYR A 64 GLN A 71 -1 N GLN A 71 O THR A 139 SHEET 5 B 6 ASN A 81 HIS A 86 -1 O ALA A 83 N TRP A 70 SHEET 6 B 6 GLY A 90 SER A 92 -1 O GLY A 90 N HIS A 86 SHEET 1 C 3 VAL A 50 LEU A 52 0 SHEET 2 C 3 LEU A 125 LEU A 127 -1 O LEU A 125 N LEU A 52 SHEET 3 C 3 LEU A 103 PHE A 105 -1 N SER A 104 O ALA A 126 SSBOND 1 CYS A 54 CYS A 140 1555 1555 2.04 LINK MG MG A 201 O HOH A 192 1555 1555 1.98 LINK MG MG A 201 O HOH A 177 1555 1555 2.03 LINK O PRO A 94 MG MG A 201 1555 1555 2.08 LINK MG MG A 201 O HOH A 196 1555 1555 2.09 LINK MG MG A 201 O HOH A 173 1555 1555 2.11 LINK MG MG A 201 O HOH A 174 1555 1555 2.13 CISPEP 1 LEU A 57 PRO A 58 0 -8.28 CISPEP 2 LYS A 97 PRO A 98 0 -1.77 CISPEP 3 PHE A 145 PRO A 146 0 14.06 SITE 1 AC1 6 PRO A 94 HOH A 173 HOH A 174 HOH A 177 SITE 2 AC1 6 HOH A 192 HOH A 196 SITE 1 AC2 4 ASP A 33 SER A 100 GLU A 101 HOH A 238 CRYST1 57.964 57.964 67.544 90.00 90.00 90.00 P 41 21 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 0.017252 0.000000 0.000000 0.00000 SCALE2 0.000000 0.017252 0.000000 0.00000 SCALE3 0.000000 0.000000 0.014805 0.00000