HEADER ELECTRON TRANSPORT 25-MAY-01 1J9E TITLE LOW TEMPERATURE (100K) CRYSTAL STRUCTURE OF FLAVODOXIN D. VULGARIS TITLE 2 S35C MUTANT AT 1.44 ANGSTROM RESOLUTION COMPND MOL_ID: 1; COMPND 2 MOLECULE: FLAVODOXIN; COMPND 3 CHAIN: A; COMPND 4 ENGINEERED: YES; COMPND 5 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: DESULFOVIBRIO VULGARIS; SOURCE 3 ORGANISM_TAXID: 881; SOURCE 4 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 5 EXPRESSION_SYSTEM_TAXID: 562 KEYWDS ALPHA-HELICES, BETA-SHEETS, ELECTRON TRANSPORT EXPDTA X-RAY DIFFRACTION AUTHOR R.ARTALI,G.BOMBIERI,F.MENEGHETTI,G.GILARDI,S.J.SADEGHI,D.CAVAZZINI, AUTHOR 2 G.L.ROSSI REVDAT 5 07-FEB-24 1J9E 1 REMARK REVDAT 4 27-OCT-21 1J9E 1 REMARK SEQADV REVDAT 3 24-FEB-09 1J9E 1 VERSN REVDAT 2 18-DEC-02 1J9E 1 AUTHOR JRNL REMARK REVDAT 1 05-SEP-01 1J9E 0 JRNL AUTH R.ARTALI,G.BOMBIERI,F.MENEGHETTI,G.GILARDI,S.J.SADEGHI, JRNL AUTH 2 D.CAVAZZINI,G.L.ROSSI JRNL TITL COMPARISON OF THE REFINED CRYSTAL STRUCTURES OF WILD-TYPE JRNL TITL 2 (1.34 A) FLAVODOXIN FROM DESULFOVIBRIO VULGARIS AND THE S35C JRNL TITL 3 MUTANT (1.44 A) AT 100 K. JRNL REF ACTA CRYSTALLOGR.,SECT.D V. 58 1787 2002 JRNL REFN ISSN 0907-4449 JRNL PMID 12351822 JRNL DOI 10.1107/S0907444902012234 REMARK 2 REMARK 2 RESOLUTION. 1.44 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : SHELXL-97 REMARK 3 AUTHORS : G.M.SHELDRICK REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.44 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 16.37 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 86.8 REMARK 3 CROSS-VALIDATION METHOD : FREE R REMARK 3 FREE R VALUE TEST SET SELECTION : RANDOM REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT (NO CUTOFF). REMARK 3 R VALUE (WORKING + TEST SET, NO CUTOFF) : 0.139 REMARK 3 R VALUE (WORKING SET, NO CUTOFF) : 0.136 REMARK 3 FREE R VALUE (NO CUTOFF) : 0.156 REMARK 3 FREE R VALUE TEST SET SIZE (%, NO CUTOFF) : 11.000 REMARK 3 FREE R VALUE TEST SET COUNT (NO CUTOFF) : 323 REMARK 3 TOTAL NUMBER OF REFLECTIONS (NO CUTOFF) : 3232 REMARK 3 REMARK 3 FIT/AGREEMENT OF MODEL FOR DATA WITH F>4SIG(F). REMARK 3 R VALUE (WORKING + TEST SET, F>4SIG(F)) : 0.137 REMARK 3 R VALUE (WORKING SET, F>4SIG(F)) : 0.134 REMARK 3 FREE R VALUE (F>4SIG(F)) : 0.154 REMARK 3 FREE R VALUE TEST SET SIZE (%, F>4SIG(F)) : 11.000 REMARK 3 FREE R VALUE TEST SET COUNT (F>4SIG(F)) : 309 REMARK 3 TOTAL NUMBER OF REFLECTIONS (F>4SIG(F)) : 2783 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1102 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 31 REMARK 3 SOLVENT ATOMS : 174 REMARK 3 REMARK 3 MODEL REFINEMENT. REMARK 3 OCCUPANCY SUM OF NON-HYDROGEN ATOMS : 1305.0 REMARK 3 OCCUPANCY SUM OF HYDROGEN ATOMS : 1030.0 REMARK 3 NUMBER OF DISCRETELY DISORDERED RESIDUES : NULL REMARK 3 NUMBER OF LEAST-SQUARES PARAMETERS : 1175 REMARK 3 NUMBER OF RESTRAINTS : 2033 REMARK 3 REMARK 3 RMS DEVIATIONS FROM RESTRAINT TARGET VALUES. REMARK 3 BOND LENGTHS (A) : 0.010 REMARK 3 ANGLE DISTANCES (A) : 0.020 REMARK 3 SIMILAR DISTANCES (NO TARGET VALUES) (A) : 0.000 REMARK 3 DISTANCES FROM RESTRAINT PLANES (A) : 0.027 REMARK 3 ZERO CHIRAL VOLUMES (A**3) : 0.060 REMARK 3 NON-ZERO CHIRAL VOLUMES (A**3) : 0.070 REMARK 3 ANTI-BUMPING DISTANCE RESTRAINTS (A) : 0.030 REMARK 3 RIGID-BOND ADP COMPONENTS (A**2) : 0.000 REMARK 3 SIMILAR ADP COMPONENTS (A**2) : 0.030 REMARK 3 APPROXIMATELY ISOTROPIC ADPS (A**2) : 0.050 REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED: NULL REMARK 3 REMARK 3 STEREOCHEMISTRY TARGET VALUES : ENGH AND HUBER REMARK 3 SPECIAL CASE: NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1J9E COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 29-MAY-01. REMARK 100 THE DEPOSITION ID IS D_1000013524. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 30-AUG-99 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 7.00 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : ELETTRA REMARK 200 BEAMLINE : 5.2R REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.000 REMARK 200 MONOCHROMATOR : GRAPHITE REMARK 200 OPTICS : MIRRORS REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : MARRESEARCH REMARK 200 INTENSITY-INTEGRATION SOFTWARE : MOSFLM REMARK 200 DATA SCALING SOFTWARE : SCALA, CCP4 (SCALA) REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 3099 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.440 REMARK 200 RESOLUTION RANGE LOW (A) : 16.370 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 96.0 REMARK 200 DATA REDUNDANCY : 3.800 REMARK 200 R MERGE (I) : 0.04000 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 9.9000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.44 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 16.37 REMARK 200 COMPLETENESS FOR SHELL (%) : 95.3 REMARK 200 DATA REDUNDANCY IN SHELL : 3.80 REMARK 200 R MERGE FOR SHELL (I) : 0.04600 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: AB INITIO REMARK 200 SOFTWARE USED: SHELXL-97 REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 56.32 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.00 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: AMMONIUM SULPHATE, TRIS-HCL BUFFER, PH REMARK 280 7.00, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 295K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 43 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+3/4 REMARK 290 4555 Y+1/2,-X+1/2,Z+1/4 REMARK 290 5555 -X+1/2,Y+1/2,-Z+3/4 REMARK 290 6555 X+1/2,-Y+1/2,-Z+1/4 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 69.19500 REMARK 290 SMTRY1 3 0.000000 -1.000000 0.000000 25.27500 REMARK 290 SMTRY2 3 1.000000 0.000000 0.000000 25.27500 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 103.79250 REMARK 290 SMTRY1 4 0.000000 1.000000 0.000000 25.27500 REMARK 290 SMTRY2 4 -1.000000 0.000000 0.000000 25.27500 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 34.59750 REMARK 290 SMTRY1 5 -1.000000 0.000000 0.000000 25.27500 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 25.27500 REMARK 290 SMTRY3 5 0.000000 0.000000 -1.000000 103.79250 REMARK 290 SMTRY1 6 1.000000 0.000000 0.000000 25.27500 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 25.27500 REMARK 290 SMTRY3 6 0.000000 0.000000 -1.000000 34.59750 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 69.19500 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 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 HOH A 233 LIES ON A SPECIAL POSITION. REMARK 375 HOH A 273 LIES ON A SPECIAL POSITION. REMARK 375 HOH A 278 LIES ON A SPECIAL POSITION. REMARK 375 HOH A 293 LIES ON A SPECIAL POSITION. REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: COVALENT BOND LENGTHS 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,2(A3,1X,A1,I4,A1,1X,A4,3X),1X,F6.3) 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 RES CSSEQI ATM2 DEVIATION REMARK 500 ILE A 148 C ILE A 148 OXT 3.818 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 ARG A 24 NE - CZ - NH1 ANGL. DEV. = 3.0 DEGREES REMARK 500 TYR A 31 CB - CG - CD1 ANGL. DEV. = 3.7 DEGREES REMARK 500 TRP A 60 CD1 - NE1 - CE2 ANGL. DEV. = 6.9 DEGREES REMARK 500 ASP A 69 CB - CG - OD2 ANGL. DEV. = -5.9 DEGREES REMARK 500 GLU A 79 OE1 - CD - OE2 ANGL. DEV. = 8.4 DEGREES REMARK 500 GLN A 84 CB - CG - CD ANGL. DEV. = 25.1 DEGREES REMARK 500 ARG A 145 CD - NE - CZ ANGL. DEV. = 8.6 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 ASP A 62 -77.23 65.37 REMARK 500 TYR A 100 77.40 -114.58 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 FMN A 149 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1J8Q RELATED DB: PDB REMARK 900 LOW TEMPERATURE (100K) CRYSTAL STRUCTURE OF FLAVODOXIN D. VULGARIS REMARK 900 WILD-TYPE AT 1.35 ANGSTROM RESOLUTION REMARK 900 RELATED ID: 1J9G RELATED DB: PDB REMARK 900 LOW TEMPERATURE (100K) CRYSTAL STRUCTURE OF FLAVODOXIN D. VULGARIS REMARK 900 S64C MUTANT AT 2.4 ANGSTROM RESOLUTION DBREF 1J9E A 2 148 UNP P00323 FLAV_DESVH 2 148 SEQADV 1J9E ALA A 2 UNP P00323 PRO 2 SEE REMARK 999 SEQADV 1J9E CYS A 35 UNP P00323 SER 35 ENGINEERED MUTATION SEQRES 1 A 147 ALA LYS ALA LEU ILE VAL TYR GLY SER THR THR GLY ASN SEQRES 2 A 147 THR GLU TYR THR ALA GLU THR ILE ALA ARG GLU LEU ALA SEQRES 3 A 147 ASP ALA GLY TYR GLU VAL ASP CYS ARG ASP ALA ALA SER SEQRES 4 A 147 VAL GLU ALA GLY GLY LEU PHE GLU GLY PHE ASP LEU VAL SEQRES 5 A 147 LEU LEU GLY CYS SER THR TRP GLY ASP ASP SER ILE GLU SEQRES 6 A 147 LEU GLN ASP ASP PHE ILE PRO LEU PHE ASP SER LEU GLU SEQRES 7 A 147 GLU THR GLY ALA GLN GLY ARG LYS VAL ALA CYS PHE GLY SEQRES 8 A 147 CYS GLY ASP SER SER TYR GLU TYR PHE CYS GLY ALA VAL SEQRES 9 A 147 ASP ALA ILE GLU GLU LYS LEU LYS ASN LEU GLY ALA GLU SEQRES 10 A 147 ILE VAL GLN ASP GLY LEU ARG ILE ASP GLY ASP PRO ARG SEQRES 11 A 147 ALA ALA ARG ASP ASP ILE VAL GLY TRP ALA HIS ASP VAL SEQRES 12 A 147 ARG GLY ALA ILE HET FMN A 149 31 HETNAM FMN FLAVIN MONONUCLEOTIDE HETSYN FMN RIBOFLAVIN MONOPHOSPHATE FORMUL 2 FMN C17 H21 N4 O9 P FORMUL 3 HOH *174(H2 O) HELIX 1 1 GLY A 13 ALA A 29 1 17 HELIX 2 2 ALA A 39 VAL A 41 5 3 HELIX 3 3 PHE A 71 SER A 77 1 7 HELIX 4 4 LEU A 78 THR A 81 5 4 HELIX 5 5 CYS A 102 LEU A 115 1 14 HELIX 6 6 ASP A 129 ALA A 132 5 4 HELIX 7 7 ALA A 133 ILE A 148 1 16 SHEET 1 A 5 GLU A 32 ASP A 37 0 SHEET 2 A 5 LYS A 3 GLY A 9 1 N ALA A 4 O GLU A 32 SHEET 3 A 5 LEU A 52 CYS A 57 1 O LEU A 52 N LEU A 5 SHEET 4 A 5 LYS A 87 GLY A 94 1 O LYS A 87 N VAL A 53 SHEET 5 A 5 GLU A 118 ILE A 119 1 O GLU A 118 N VAL A 88 SHEET 1 B 5 GLU A 32 ASP A 37 0 SHEET 2 B 5 LYS A 3 GLY A 9 1 N ALA A 4 O GLU A 32 SHEET 3 B 5 LEU A 52 CYS A 57 1 O LEU A 52 N LEU A 5 SHEET 4 B 5 LYS A 87 GLY A 94 1 O LYS A 87 N VAL A 53 SHEET 5 B 5 LEU A 124 ASP A 127 1 N LEU A 124 O CYS A 90 SHEET 1 C 2 THR A 59 TRP A 60 0 SHEET 2 C 2 GLU A 66 LEU A 67 -1 O GLU A 66 N TRP A 60 SITE 1 AC1 22 SER A 10 THR A 11 THR A 12 GLY A 13 SITE 2 AC1 22 ASN A 14 THR A 15 ASP A 28 SER A 58 SITE 3 AC1 22 THR A 59 TRP A 60 GLY A 61 ASP A 62 SITE 4 AC1 22 CYS A 93 GLY A 94 ASP A 95 TYR A 98 SITE 5 AC1 22 TYR A 100 PHE A 101 CYS A 102 HOH A 152 SITE 6 AC1 22 HOH A 157 HOH A 301 CRYST1 50.550 50.550 138.390 90.00 90.00 90.00 P 43 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 0.019782 0.000000 0.000000 0.00000 SCALE2 0.000000 0.019782 0.000000 0.00000 SCALE3 0.000000 0.000000 0.007226 0.00000