HEADER IMMUNE SYSTEM 12-MAR-13 4JKW TITLE STRUCTURE OF THE EXTRACELLULAR DOMAIN OF BUTYROPHILIN BTN3A1 IN TITLE 2 COMPLEX WITH ISOPENTENYL PYROPHOSPHATE (IPP) COMPND MOL_ID: 1; COMPND 2 MOLECULE: BUTYROPHILIN SUBFAMILY 3 MEMBER A1; COMPND 3 CHAIN: A; COMPND 4 FRAGMENT: UNP RESIDUES 28-143; COMPND 5 ENGINEERED: YES; COMPND 6 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: HOMO SAPIENS; SOURCE 3 ORGANISM_COMMON: HUMAN; SOURCE 4 ORGANISM_TAXID: 9606; SOURCE 5 GENE: BT3.2, BTF3, BTF4, BTF5, BTN3A1, BTN3A2, BUTYROPHILIN SOURCE 6 SUBFAMILY 3 MEMBER A1; SOURCE 7 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 8 EXPRESSION_SYSTEM_TAXID: 469008; SOURCE 9 EXPRESSION_SYSTEM_STRAIN: BL21 DE3 RIL; SOURCE 10 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 11 EXPRESSION_SYSTEM_PLASMID: PET22B(+)-HIS6 KEYWDS IMMUNOGLOBULIN SUPERFAMILY, IMMUNE SYSTEM EXPDTA X-RAY DIFFRACTION AUTHOR A.KUMAR,L.MORI,G.DE LIBERO REVDAT 4 25-SEP-13 4JKW 1 JRNL REVDAT 3 28-AUG-13 4JKW 1 JRNL REVDAT 2 31-JUL-13 4JKW 1 TITLE REVDAT 1 24-JUL-13 4JKW 0 JRNL AUTH S.VAVASSORI,A.KUMAR,G.S.WAN,G.S.RAMANJANEYULU,M.CAVALLARI, JRNL AUTH 2 S.EL DAKER,T.BEDDOE,A.THEODOSSIS,N.K.WILLIAMS,E.GOSTICK, JRNL AUTH 3 D.A.PRICE,D.U.SOUDAMINI,K.K.VOON,M.OLIVO,J.ROSSJOHN,L.MORI, JRNL AUTH 4 G.DE LIBERO JRNL TITL BUTYROPHILIN 3A1 BINDS PHOSPHORYLATED ANTIGENS AND JRNL TITL 2 STIMULATES HUMAN GAMMA DELTA T CELLS. JRNL REF NAT.IMMUNOL. V. 14 908 2013 JRNL REFN ISSN 1529-2908 JRNL PMID 23872678 JRNL DOI 10.1038/NI.2665 REMARK 2 REMARK 2 RESOLUTION. 2.01 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC 5.5.0110 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) : 2.01 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 21.64 REMARK 3 DATA CUTOFF (SIGMA(F)) : NULL REMARK 3 COMPLETENESS FOR RANGE (%) : 92.8 REMARK 3 NUMBER OF REFLECTIONS : 7571 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) : 0.231 REMARK 3 R VALUE (WORKING SET) : 0.229 REMARK 3 FREE R VALUE : 0.268 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 4.800 REMARK 3 FREE R VALUE TEST SET COUNT : 401 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) : 2.01 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.06 REMARK 3 REFLECTION IN BIN (WORKING SET) : 499 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 84.07 REMARK 3 BIN R VALUE (WORKING SET) : 0.1940 REMARK 3 BIN FREE R VALUE SET COUNT : 34 REMARK 3 BIN FREE R VALUE : 0.2480 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 926 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 14 REMARK 3 SOLVENT ATOMS : 113 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 19.85 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 19.02 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : -0.03000 REMARK 3 B22 (A**2) : 0.04000 REMARK 3 B33 (A**2) : -0.01000 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): 0.257 REMARK 3 ESU BASED ON FREE R VALUE (A): 0.206 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.165 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 13.204 REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : 0.918 REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : 0.887 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES COUNT RMS WEIGHT REMARK 3 BOND LENGTHS REFINED ATOMS (A): 975 ; 0.006 ; 0.021 REMARK 3 BOND LENGTHS OTHERS (A): NULL ; NULL ; NULL REMARK 3 BOND ANGLES REFINED ATOMS (DEGREES): 1325 ; 1.070 ; 1.973 REMARK 3 BOND ANGLES OTHERS (DEGREES): NULL ; NULL ; NULL REMARK 3 TORSION ANGLES, PERIOD 1 (DEGREES): 122 ; 5.948 ; 5.000 REMARK 3 TORSION ANGLES, PERIOD 2 (DEGREES): 43 ;26.120 ;23.721 REMARK 3 TORSION ANGLES, PERIOD 3 (DEGREES): 161 ;13.835 ;15.000 REMARK 3 TORSION ANGLES, PERIOD 4 (DEGREES): 6 ;15.669 ;15.000 REMARK 3 CHIRAL-CENTER RESTRAINTS (A**3): 143 ; 0.068 ; 0.200 REMARK 3 GENERAL PLANES REFINED ATOMS (A): 738 ; 0.003 ; 0.021 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): 602 ; 0.328 ; 1.500 REMARK 3 MAIN-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE REFINED ATOMS (A**2): 968 ; 0.631 ; 2.000 REMARK 3 MAIN-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN BOND REFINED ATOMS (A**2): 373 ; 0.841 ; 3.000 REMARK 3 SIDE-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE REFINED ATOMS (A**2): 357 ; 1.437 ; 4.500 REMARK 3 SIDE-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 LONG RANGE B REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 LONG RANGE B OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 REMARK 3 ANISOTROPIC THERMAL FACTOR RESTRAINTS. COUNT RMS WEIGHT REMARK 3 RIGID-BOND RESTRAINTS (A**2): NULL ; NULL ; NULL 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 : 1 REMARK 3 REMARK 3 TLS GROUP : 1 REMARK 3 NUMBER OF COMPONENTS GROUP : 1 REMARK 3 COMPONENTS C SSSEQI TO C SSSEQI REMARK 3 RESIDUE RANGE : A 3 A 121 REMARK 3 ORIGIN FOR THE GROUP (A): 9.7512 23.9485 70.7626 REMARK 3 T TENSOR REMARK 3 T11: 0.0460 T22: 0.0265 REMARK 3 T33: 0.0216 T12: 0.0001 REMARK 3 T13: -0.0024 T23: 0.0104 REMARK 3 L TENSOR REMARK 3 L11: 0.9724 L22: 0.4120 REMARK 3 L33: 1.0238 L12: -0.0053 REMARK 3 L13: -0.2286 L23: 0.2684 REMARK 3 S TENSOR REMARK 3 S11: 0.0398 S12: -0.0032 S13: 0.0179 REMARK 3 S21: 0.0241 S22: -0.0110 S23: -0.0254 REMARK 3 S31: 0.0284 S32: -0.0214 S33: -0.0288 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: HYDROGENS HAVE BEEN ADDED IN THE RIDING REMARK 3 POSITIONS REMARK 4 REMARK 4 4JKW COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 12-MAR-13. REMARK 100 THE RCSB ID CODE IS RCSB078174. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : NULL REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 6.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : NSRRC REMARK 200 BEAMLINE : BL13B1 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.96422 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : ADSC QUANTUM 315R REMARK 200 INTENSITY-INTEGRATION SOFTWARE : HKL-2000 REMARK 200 DATA SCALING SOFTWARE : HKL-2000 REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 7571 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.010 REMARK 200 RESOLUTION RANGE LOW (A) : 21.640 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 2.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 92.8 REMARK 200 DATA REDUNDANCY : 5.000 REMARK 200 R MERGE (I) : 0.09100 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 15.3000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.01 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.08 REMARK 200 COMPLETENESS FOR SHELL (%) : 80.0 REMARK 200 DATA REDUNDANCY IN SHELL : 4.10 REMARK 200 R MERGE FOR SHELL (I) : 0.25800 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 3.468 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT 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 (%): 47.30 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.33 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 0.12 M ETHYLENE GLYCOLS, 0.1 M BUFFER REMARK 280 SYSTEM 1, 30% PEG 550 MME AND PEG 20.000, PH 6.5, VAPOR REMARK 280 DIFFUSION, HANGING DROP, TEMPERATURE 291K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 21 21 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X+1/2,-Y,Z+1/2 REMARK 290 3555 -X,Y+1/2,-Z+1/2 REMARK 290 4555 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 16.35850 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 54.00650 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 18.09700 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 54.00650 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 16.35850 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 18.09700 REMARK 290 SMTRY3 4 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 SOFTWARE DETERMINED QUATERNARY STRUCTURE: MONOMERIC REMARK 350 SOFTWARE USED: PISA 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 SER A 1 REMARK 465 ALA A 2 REMARK 465 HIS A 122 REMARK 465 HIS A 123 REMARK 465 HIS A 124 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 LEU A 45 -17.14 119.90 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 IPE A 201 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 4K55 RELATED DB: PDB DBREF 4JKW A 1 116 UNP O00481 BT3A1_HUMAN 28 143 SEQADV 4JKW LEU A 117 UNP O00481 EXPRESSION TAG SEQADV 4JKW GLU A 118 UNP O00481 EXPRESSION TAG SEQADV 4JKW HIS A 119 UNP O00481 EXPRESSION TAG SEQADV 4JKW HIS A 120 UNP O00481 EXPRESSION TAG SEQADV 4JKW HIS A 121 UNP O00481 EXPRESSION TAG SEQADV 4JKW HIS A 122 UNP O00481 EXPRESSION TAG SEQADV 4JKW HIS A 123 UNP O00481 EXPRESSION TAG SEQADV 4JKW HIS A 124 UNP O00481 EXPRESSION TAG SEQRES 1 A 124 SER ALA GLN PHE SER VAL LEU GLY PRO SER GLY PRO ILE SEQRES 2 A 124 LEU ALA MET VAL GLY GLU ASP ALA ASP LEU PRO CYS HIS SEQRES 3 A 124 LEU PHE PRO THR MET SER ALA GLU THR MET GLU LEU LYS SEQRES 4 A 124 TRP VAL SER SER SER LEU ARG GLN VAL VAL ASN VAL TYR SEQRES 5 A 124 ALA ASP GLY LYS GLU VAL GLU ASP ARG GLN SER ALA PRO SEQRES 6 A 124 TYR ARG GLY ARG THR SER ILE LEU ARG ASP GLY ILE THR SEQRES 7 A 124 ALA GLY LYS ALA ALA LEU ARG ILE HIS ASN VAL THR ALA SEQRES 8 A 124 SER ASP SER GLY LYS TYR LEU CYS TYR PHE GLN ASP GLY SEQRES 9 A 124 ASP PHE TYR GLU LYS ALA LEU VAL GLU LEU LYS VAL LEU SEQRES 10 A 124 GLU HIS HIS HIS HIS HIS HIS HET IPE A 201 14 HETNAM IPE 3-METHYLBUT-3-ENYL TRIHYDROGEN DIPHOSPHATE HETSYN IPE ISOPENTENYL PYROPHOSPHATE FORMUL 2 IPE C5 H12 O7 P2 FORMUL 3 HOH *113(H2 O) HELIX 1 1 GLU A 59 GLN A 62 5 4 HELIX 2 2 GLY A 76 ALA A 79 5 4 HELIX 3 3 THR A 90 SER A 94 5 5 SHEET 1 A 4 SER A 5 LEU A 7 0 SHEET 2 A 4 ALA A 21 PHE A 28 -1 O PHE A 28 N SER A 5 SHEET 3 A 4 LYS A 81 ILE A 86 -1 O ALA A 82 N CYS A 25 SHEET 4 A 4 THR A 70 LEU A 73 -1 N SER A 71 O ARG A 85 SHEET 1 B 6 ILE A 13 MET A 16 0 SHEET 2 B 6 PHE A 106 LEU A 117 1 O GLU A 113 N ILE A 13 SHEET 3 B 6 GLY A 95 ASP A 103 -1 N ASP A 103 O PHE A 106 SHEET 4 B 6 GLU A 37 SER A 42 -1 N LYS A 39 O TYR A 100 SHEET 5 B 6 VAL A 48 ALA A 53 -1 O TYR A 52 N LEU A 38 SHEET 6 B 6 LYS A 56 GLU A 57 -1 O LYS A 56 N ALA A 53 SSBOND 1 CYS A 25 CYS A 99 1555 1555 2.03 CISPEP 1 PHE A 28 PRO A 29 0 -1.94 SITE 1 AC1 8 GLU A 37 LEU A 38 LYS A 39 VAL A 51 SITE 2 AC1 8 TYR A 100 GLN A 102 HOH A 380 HOH A 399 CRYST1 32.717 36.194 108.013 90.00 90.00 90.00 P 21 21 21 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 0.030565 0.000000 0.000000 0.00000 SCALE2 0.000000 0.027629 0.000000 0.00000 SCALE3 0.000000 0.000000 0.009258 0.00000