HEADER SIGNALING PROTEIN 21-MAY-08 2ZOI TITLE NEUTRON CRYSTAL STRUCTURE OF PHOTOACTIVE YELLOW PROTEIN, WILD TYPE, AT TITLE 2 295K COMPND MOL_ID: 1; COMPND 2 MOLECULE: PHOTOACTIVE YELLOW PROTEIN; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: PYP; COMPND 5 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: HALORHODOSPIRA HALOPHILA; SOURCE 3 ORGANISM_TAXID: 1053; SOURCE 4 GENE: PYP; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 7 EXPRESSION_SYSTEM_STRAIN: BL21DE3; SOURCE 8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 9 EXPRESSION_SYSTEM_PLASMID: PET16B KEYWDS PAS, LOV, PHOTORECEPTOR, LIGHT SENSOR, LBHB, SHB, CHROMOPHORE, KEYWDS 2 PHOTORECEPTOR PROTEIN, RECEPTOR, SENSORY TRANSDUCTION, SIGNALING KEYWDS 3 PROTEIN EXPDTA NEUTRON DIFFRACTION AUTHOR S.YAMAGUCHI REVDAT 4 01-NOV-23 2ZOI 1 REMARK LINK REVDAT 3 07-MAR-18 2ZOI 1 REMARK REVDAT 2 13-JUL-11 2ZOI 1 VERSN REVDAT 1 24-MAR-09 2ZOI 0 JRNL AUTH S.YAMAGUCHI,H.KAMIKUBO,K.KURIHARA,R.KUROKI,N.NIIMURA, JRNL AUTH 2 N.SHIMIZU,Y.YAMAZAKI,M.KATAOKA JRNL TITL LOW-BARRIER HYDROGEN BOND IN PHOTOACTIVE YELLOW PROTEIN JRNL REF PROC.NATL.ACAD.SCI.USA V. 106 440 2009 JRNL REFN ISSN 0027-8424 JRNL PMID 19122140 JRNL DOI 10.1073/PNAS.0811882106 REMARK 2 REMARK 2 RESOLUTION. 1.50 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) : 1.50 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 70.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 1.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : 150751.560 REMARK 3 DATA CUTOFF LOW (ABS(F)) : 0.0000 REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 89.5 REMARK 3 NUMBER OF REFLECTIONS : 15283 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) : 0.192 REMARK 3 FREE R VALUE : 0.219 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.000 REMARK 3 FREE R VALUE TEST SET COUNT : 757 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : 0.008 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) : 1.50 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.59 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 75.60 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 2049 REMARK 3 BIN R VALUE (WORKING SET) : 0.3000 REMARK 3 BIN FREE R VALUE : 0.2930 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 4.40 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 94 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : 0.030 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 976 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 11 REMARK 3 SOLVENT ATOMS : 73 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 9.64 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 14.70 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : NULL REMARK 3 B22 (A**2) : NULL REMARK 3 B33 (A**2) : NULL REMARK 3 B12 (A**2) : NULL REMARK 3 B13 (A**2) : NULL REMARK 3 B23 (A**2) : NULL REMARK 3 REMARK 3 ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM LUZZATI PLOT (A) : 0.17 REMARK 3 ESD FROM SIGMAA (A) : 0.17 REMARK 3 LOW RESOLUTION CUTOFF (A) : 50.0 REMARK 3 REMARK 3 CROSS-VALIDATED ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM C-V LUZZATI PLOT (A) : 0.20 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.21 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.013 REMARK 3 BOND ANGLES (DEGREES) : 1.700 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 24.40 REMARK 3 IMPROPER ANGLES (DEGREES) : 1.680 REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : RESTRAINED ISOTROPIC THERMAL MODEL REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. RMS SIGMA REMARK 3 MAIN-CHAIN BOND (A**2) : 2.780 ; 1.500 REMARK 3 MAIN-CHAIN ANGLE (A**2) : 3.710 ; 2.000 REMARK 3 SIDE-CHAIN BOND (A**2) : 5.140 ; 2.000 REMARK 3 SIDE-CHAIN ANGLE (A**2) : 5.940 ; 2.500 REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED : FLAT MODEL REMARK 3 KSOL : 0.06 REMARK 3 BSOL : 20.47 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 : PYP_NEUTRON_V11.PARAM REMARK 3 PARAMETER FILE 2 : WATER_NEUTRON_V11.PARAM REMARK 3 PARAMETER FILE 3 : NULL REMARK 3 TOPOLOGY FILE 1 : PYP_NEUTRON_V11_D4.TOP REMARK 3 TOPOLOGY FILE 2 : WATER_NEUTRON_V11.TOP REMARK 3 TOPOLOGY FILE 3 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: THE DE2 (AND HE2) ATOM OF GLU A 46 IS REMARK 3 INVOLVED IN THE SPECIAL TYPE OF HYDROGEN BOND, SO-CALLED LOW REMARK 3 BARRIER HYDROGEN BOND. IN SUCH HYDROGEN BOND, THE HE2 (OR DE2) REMARK 3 ATOM IS SHARED BY THE TWO DONOR ATOMS, WHICH ARE OE2(GLU 46) AND REMARK 3 O4'(HC4 169) IN THIS CASE. X-PLOR 3.851 WAS ALSO USED FOR THE REMARK 3 REFINEMENT. THE STANDARD TOPOLOGY AND PARAMETER FILES WERE REMARK 3 CHANGED FOR HYDROGEN AND DEUTERIUM ATOM PARAMETERS TO MEET THE REMARK 3 REQUIREMENTS OF THE NEUTRON STRUCTURE REFINEMENT. REMARK 4 REMARK 4 2ZOI COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 26-MAY-08. REMARK 100 THE DEPOSITION ID IS D_1000028226. REMARK 230 REMARK 230 EXPERIMENTAL DETAILS REMARK 230 EXPERIMENT TYPE : NEUTRON DIFFRACTION REMARK 230 DATE OF DATA COLLECTION : 31-MAR-07 REMARK 230 TEMPERATURE (KELVIN) : 295.0 REMARK 230 PH : 9.00 REMARK 230 NUMBER OF CRYSTALS USED : 1 REMARK 230 REMARK 230 NEUTRON SOURCE : NUCLEAR REACTOR REMARK 230 BEAMLINE : NULL REMARK 230 WAVELENGTH OR RANGE (A) : 2.6 REMARK 230 MONOCHROMATOR : ELASTICALLY-BENT PERFECT SI(111) REMARK 230 OPTICS : NULL REMARK 230 REMARK 230 DETECTOR TYPE : IMAGE PLATE REMARK 230 DETECTOR MANUFACTURER : MACSCIENCE DIP SCANNER FOR REMARK 230 NEUTRONS REMARK 230 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 230 DATA SCALING SOFTWARE : SCALEPACK REMARK 230 REMARK 230 NUMBER OF UNIQUE REFLECTIONS : 15293 REMARK 230 RESOLUTION RANGE HIGH (A) : 1.500 REMARK 230 RESOLUTION RANGE LOW (A) : 100.000 REMARK 230 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 230 REMARK 230 OVERALL. REMARK 230 COMPLETENESS FOR RANGE (%) : 89.6 REMARK 230 DATA REDUNDANCY : 2.600 REMARK 230 R MERGE (I) : 0.10900 REMARK 230 R SYM (I) : NULL REMARK 230 FOR THE DATA SET : 7.4000 REMARK 230 REMARK 230 IN THE HIGHEST RESOLUTION SHELL. REMARK 230 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.50 REMARK 230 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.55 REMARK 230 COMPLETENESS FOR SHELL (%) : 72.8 REMARK 230 DATA REDUNDANCY IN SHELL : 2.00 REMARK 230 R MERGE FOR SHELL (I) : 0.32400 REMARK 230 R SYM FOR SHELL (I) : NULL REMARK 230 FOR SHELL : 2.910 REMARK 230 REMARK 230 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 230 SOFTWARE USED : AMORE REMARK 230 STARTING MODEL: 2ZOH REMARK 230 REMARK 230 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): NULL REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): NULL REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: AMMONIUM SULPHATE, SODIUM CHLORIDE, REMARK 280 SODIUM DIDEUTERIUM PHOSPHATE, DISODIUM DEUTERIUM PHOSPHATE, PH REMARK 280 9.0, VAPOR DIFFUSION, HANGING DROP, MICROSEEDING, TEMPERATURE REMARK 280 295K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 63 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -Y,X-Y,Z REMARK 290 3555 -X+Y,-X,Z REMARK 290 4555 -X,-Y,Z+1/2 REMARK 290 5555 Y,-X+Y,Z+1/2 REMARK 290 6555 X-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 -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 0.00000 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 0.00000 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 20.55950 REMARK 290 SMTRY1 5 0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 5 -0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 5 0.000000 0.000000 1.000000 20.55950 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 20.55950 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 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS IN SAME ASYMMETRIC UNIT REMARK 500 REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT. REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI DISTANCE REMARK 500 DD1 HIS A 108 D1 DOD A 1009 1.26 REMARK 500 DE2 GLU A 46 O4' HC4 A 169 1.37 REMARK 500 HE2 GLU A 46 O4' HC4 A 169 1.37 REMARK 500 REMARK 500 REMARK: NULL 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 OD2 ASP A 71 DZ3 LYS A 123 5555 1.56 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 ASP A 24 CB - CG - OD2 ANGL. DEV. = -5.7 DEGREES REMARK 500 ASP A 65 CB - CG - OD1 ANGL. DEV. = -7.0 DEGREES REMARK 500 ASP A 65 CB - CG - OD2 ANGL. DEV. = 7.3 DEGREES REMARK 500 PHE A 75 CB - CG - CD1 ANGL. DEV. = 4.3 DEGREES REMARK 500 TYR A 76 CB - CG - CD2 ANGL. DEV. = -3.6 DEGREES REMARK 500 TYR A 76 CB - CG - CD1 ANGL. DEV. = 3.9 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 PHE A 75 -76.36 -132.06 REMARK 500 ASP A 97 17.84 -143.51 REMARK 500 ASP A 116 56.48 -115.26 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 HC4 A 169 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 2ZOH RELATED DB: PDB REMARK 900 X-RAY CRYSTAL STRUCTURE OF THE SAME PROTEIN. DBREF 2ZOI A 1 125 UNP P16113 PYP_HALHA 1 125 SEQRES 1 A 125 MET GLU HIS VAL ALA PHE GLY SER GLU ASP ILE GLU ASN SEQRES 2 A 125 THR LEU ALA LYS MET ASP ASP GLY GLN LEU ASP GLY LEU SEQRES 3 A 125 ALA PHE GLY ALA ILE GLN LEU ASP GLY ASP GLY ASN ILE SEQRES 4 A 125 LEU GLN TYR ASN ALA ALA GLU GLY ASP ILE THR GLY ARG SEQRES 5 A 125 ASP PRO LYS GLN VAL ILE GLY LYS ASN PHE PHE LYS ASP SEQRES 6 A 125 VAL ALA PRO CYS THR ASP SER PRO GLU PHE TYR GLY LYS SEQRES 7 A 125 PHE LYS GLU GLY VAL ALA SER GLY ASN LEU ASN THR MET SEQRES 8 A 125 PHE GLU TYR THR PHE ASP TYR GLN MET THR PRO THR LYS SEQRES 9 A 125 VAL LYS VAL HIS MET LYS LYS ALA LEU SER GLY ASP SER SEQRES 10 A 125 TYR TRP VAL PHE VAL LYS ARG VAL HET HC4 A 169 17 HETNAM HC4 4'-HYDROXYCINNAMIC ACID HETSYN HC4 PARA-COUMARIC ACID FORMUL 2 HC4 C9 H8 O3 FORMUL 3 DOD *73(D2 O) HELIX 1 1 ASP A 10 ALA A 16 1 7 HELIX 2 2 ASP A 19 ASP A 24 1 6 HELIX 3 3 ASN A 43 GLY A 51 1 9 HELIX 4 4 ASP A 53 ILE A 58 1 6 HELIX 5 5 ALA A 67 ASP A 71 5 5 HELIX 6 6 PHE A 75 GLY A 86 1 12 SHEET 1 A 5 ILE A 39 TYR A 42 0 SHEET 2 A 5 GLY A 29 ASP A 34 -1 N GLN A 32 O LEU A 40 SHEET 3 A 5 SER A 117 ARG A 124 -1 O TYR A 118 N LEU A 33 SHEET 4 A 5 THR A 103 LYS A 111 -1 N LYS A 110 O TRP A 119 SHEET 5 A 5 ASN A 89 PHE A 96 -1 N PHE A 92 O VAL A 107 LINK SG CYS A 69 C1 HC4 A 169 1555 1555 1.78 SITE 1 AC1 9 TYR A 42 GLU A 46 THR A 50 ARG A 52 SITE 2 AC1 9 ALA A 67 PRO A 68 CYS A 69 PHE A 96 SITE 3 AC1 9 TYR A 98 CRYST1 67.145 67.145 41.119 90.00 90.00 120.00 P 63 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 0.014893 0.008599 0.000000 0.00000 SCALE2 0.000000 0.017197 0.000000 0.00000 SCALE3 0.000000 0.000000 0.024320 0.00000