HEADER STRUCTURAL PROTEIN 19-APR-11 3RLK TITLE CRYSTAL STRUCTURE OF THE READ-THROUGH DOMAIN FROM BACTERIOPHAGE QBETA TITLE 2 A1 PROTEIN, MONOCLINIC CRYSTAL FORM COMPND MOL_ID: 1; COMPND 2 MOLECULE: A1 PROTEIN; COMPND 3 CHAIN: A; COMPND 4 FRAGMENT: READ-THROUGH DOMAIN, UNP RESIDUES 145-329; COMPND 5 SYNONYM: A1 READ-THROUGH PROTEIN; COMPND 6 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ENTEROBACTERIA PHAGE QBETA; SOURCE 3 ORGANISM_TAXID: 39803; SOURCE 4 GENE: A1; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 7 EXPRESSION_SYSTEM_STRAIN: TOP10; SOURCE 8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 9 EXPRESSION_SYSTEM_PLASMID: PBAD KEYWDS BETA-BARREL, POLYPROLINE HELIX, STRUCTURAL PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR J.RUMNIEKS,K.TARS REVDAT 3 28-FEB-24 3RLK 1 REMARK SEQADV REVDAT 2 26-JUN-13 3RLK 1 JRNL REVDAT 1 28-SEP-11 3RLK 0 JRNL AUTH J.RUMNIEKS,K.TARS JRNL TITL CRYSTAL STRUCTURE OF THE READ-THROUGH DOMAIN FROM JRNL TITL 2 BACTERIOPHAGE QBETA A1 PROTEIN JRNL REF PROTEIN SCI. V. 20 1707 2011 JRNL REFN ISSN 0961-8368 JRNL PMID 21805520 JRNL DOI 10.1002/PRO.704 REMARK 2 REMARK 2 RESOLUTION. 1.76 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC REMARK 3 AUTHORS : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER, REMARK 3 : NICHOLLS,WINN,LONG,VAGIN REMARK 3 REMARK 3 REFINEMENT TARGET : MAXIMUM LIKELIHOOD REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.76 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 38.93 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 99.2 REMARK 3 NUMBER OF REFLECTIONS : 15571 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) : 0.177 REMARK 3 R VALUE (WORKING SET) : 0.174 REMARK 3 FREE R VALUE : 0.242 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.100 REMARK 3 FREE R VALUE TEST SET COUNT : 831 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) : 1.76 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.81 REMARK 3 REFLECTION IN BIN (WORKING SET) : 1151 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 99.35 REMARK 3 BIN R VALUE (WORKING SET) : 0.2450 REMARK 3 BIN FREE R VALUE SET COUNT : 63 REMARK 3 BIN FREE R VALUE : 0.3130 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1463 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 13 REMARK 3 SOLVENT ATOMS : 155 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 17.15 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : -0.95000 REMARK 3 B22 (A**2) : -0.23000 REMARK 3 B33 (A**2) : 1.47000 REMARK 3 B12 (A**2) : 0.00000 REMARK 3 B13 (A**2) : 0.30000 REMARK 3 B23 (A**2) : 0.00000 REMARK 3 REMARK 3 ESTIMATED OVERALL COORDINATE ERROR. REMARK 3 ESU BASED ON R VALUE (A): NULL REMARK 3 ESU BASED ON FREE R VALUE (A): 0.141 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.087 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 2.673 REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : 0.952 REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : 0.917 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES COUNT RMS WEIGHT REMARK 3 BOND LENGTHS REFINED ATOMS (A): 1523 ; 0.023 ; 0.022 REMARK 3 BOND LENGTHS OTHERS (A): NULL ; NULL ; NULL REMARK 3 BOND ANGLES REFINED ATOMS (DEGREES): 2074 ; 1.925 ; 1.969 REMARK 3 BOND ANGLES OTHERS (DEGREES): NULL ; NULL ; NULL REMARK 3 TORSION ANGLES, PERIOD 1 (DEGREES): 182 ; 6.778 ; 5.000 REMARK 3 TORSION ANGLES, PERIOD 2 (DEGREES): 70 ;27.126 ;23.286 REMARK 3 TORSION ANGLES, PERIOD 3 (DEGREES): 229 ;13.795 ;15.000 REMARK 3 TORSION ANGLES, PERIOD 4 (DEGREES): 11 ;24.561 ;15.000 REMARK 3 CHIRAL-CENTER RESTRAINTS (A**3): 213 ; 0.140 ; 0.200 REMARK 3 GENERAL PLANES REFINED ATOMS (A): 1194 ; 0.011 ; 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): 921 ; 1.271 ; 1.500 REMARK 3 MAIN-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE REFINED ATOMS (A**2): 1499 ; 1.997 ; 2.000 REMARK 3 MAIN-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN BOND REFINED ATOMS (A**2): 602 ; 3.225 ; 3.000 REMARK 3 SIDE-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE REFINED ATOMS (A**2): 575 ; 4.805 ; 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 : 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: HYDROGENS HAVE BEEN ADDED IN THE RIDING REMARK 3 POSITIONS U VALUES: REFINED INDIVIDUALLY REMARK 4 REMARK 4 3RLK COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 28-APR-11. REMARK 100 THE DEPOSITION ID IS D_1000065081. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 05-MAR-09 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 : ESRF REMARK 200 BEAMLINE : ID29 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.976180 REMARK 200 MONOCHROMATOR : SI (311) REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : ADSC QUANTUM 315R REMARK 200 INTENSITY-INTEGRATION SOFTWARE : MOSFLM REMARK 200 DATA SCALING SOFTWARE : SCALA 3.3.9 REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 16414 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.760 REMARK 200 RESOLUTION RANGE LOW (A) : 38.930 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.2 REMARK 200 DATA REDUNDANCY : 3.400 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.07800 REMARK 200 FOR THE DATA SET : 10.0000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.76 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.86 REMARK 200 COMPLETENESS FOR SHELL (%) : 99.5 REMARK 200 DATA REDUNDANCY IN SHELL : 3.30 REMARK 200 R MERGE FOR SHELL (I) : 0.33400 REMARK 200 R SYM FOR SHELL (I) : 0.33400 REMARK 200 FOR SHELL : 2.200 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MIRAS REMARK 200 SOFTWARE USED: SHARP, SOLOMON REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 36.29 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 1.93 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 0.1 M TRIS-HCL, 40% PEG 300, PH 8.5, REMARK 280 VAPOR DIFFUSION, SITTING DROP, TEMPERATURE 298K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 1 21 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,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 0.00000 REMARK 290 SMTRY2 2 0.000000 1.000000 0.000000 24.56000 REMARK 290 SMTRY3 2 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 GLY A 137 REMARK 465 HIS A 138 REMARK 465 HIS A 139 REMARK 465 HIS A 140 REMARK 465 HIS A 141 REMARK 465 HIS A 142 REMARK 465 HIS A 143 REMARK 465 SER A 144 REMARK 465 LYS A 145 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 184 NE - CZ - NH1 ANGL. DEV. = 7.0 DEGREES REMARK 500 ARG A 184 NE - CZ - NH2 ANGL. DEV. = -7.5 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 GLU A 174 -34.13 -133.23 REMARK 500 ASP A 200 48.20 -94.82 REMARK 500 ASN A 230 47.19 39.16 REMARK 500 ASN A 275 63.01 39.02 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 PG4 A 401 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 3RLC RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF THE READ-THROUGH DOMAIN FROM BACTERIOPHAGE REMARK 900 QBETA A1 PROTEIN, HEXAGONAL CRYSTAL FORM DBREF 3RLK A 144 328 UNP Q8LTE1 Q8LTE1_BPQBE 145 329 SEQADV 3RLK GLY A 137 UNP Q8LTE1 EXPRESSION TAG SEQADV 3RLK HIS A 138 UNP Q8LTE1 EXPRESSION TAG SEQADV 3RLK HIS A 139 UNP Q8LTE1 EXPRESSION TAG SEQADV 3RLK HIS A 140 UNP Q8LTE1 EXPRESSION TAG SEQADV 3RLK HIS A 141 UNP Q8LTE1 EXPRESSION TAG SEQADV 3RLK HIS A 142 UNP Q8LTE1 EXPRESSION TAG SEQADV 3RLK HIS A 143 UNP Q8LTE1 EXPRESSION TAG SEQRES 1 A 192 GLY HIS HIS HIS HIS HIS HIS SER LYS PRO ASP PRO VAL SEQRES 2 A 192 ILE PRO ASP PRO PRO ILE ASP PRO PRO PRO GLY THR GLY SEQRES 3 A 192 LYS TYR THR CYS PRO PHE ALA ILE TRP SER LEU GLU GLU SEQRES 4 A 192 VAL TYR GLU PRO PRO THR LYS ASN ARG PRO TRP PRO ILE SEQRES 5 A 192 TYR ASN ALA VAL GLU LEU GLN PRO ARG GLU PHE ASP VAL SEQRES 6 A 192 ALA LEU LYS ASP LEU LEU GLY ASN THR LYS TRP ARG ASP SEQRES 7 A 192 TRP ASP SER ARG LEU SER TYR THR THR PHE ARG GLY CYS SEQRES 8 A 192 ARG GLY ASN GLY TYR ILE ASP LEU ASP ALA THR TYR LEU SEQRES 9 A 192 ALA THR ASP GLN ALA MET ARG ASP GLN LYS TYR ASP ILE SEQRES 10 A 192 ARG GLU GLY LYS LYS PRO GLY ALA PHE GLY ASN ILE GLU SEQRES 11 A 192 ARG PHE ILE TYR LEU LYS SER ILE ASN ALA TYR CYS SER SEQRES 12 A 192 LEU SER ASP ILE ALA ALA TYR HIS ALA ASP GLY VAL ILE SEQRES 13 A 192 VAL GLY PHE TRP ARG ASP PRO SER SER GLY GLY ALA ILE SEQRES 14 A 192 PRO PHE ASP PHE THR LYS PHE ASP LYS THR LYS CYS PRO SEQRES 15 A 192 ILE GLN ALA VAL ILE VAL VAL PRO ARG ALA HET PG4 A 401 13 HETNAM PG4 TETRAETHYLENE GLYCOL FORMUL 2 PG4 C8 H18 O5 FORMUL 3 HOH *155(H2 O) HELIX 1 1 ALA A 202 LEU A 207 5 6 HELIX 2 2 ASP A 236 ALA A 241 1 6 HELIX 3 3 THR A 242 GLN A 249 1 8 HELIX 4 4 LEU A 280 ALA A 285 1 6 HELIX 5 5 ASP A 308 PHE A 312 5 5 SHEET 1 A 2 GLY A 162 CYS A 166 0 SHEET 2 A 2 ARG A 197 VAL A 201 -1 O PHE A 199 N TYR A 164 SHEET 1 B 6 ILE A 170 GLU A 178 0 SHEET 2 B 6 ILE A 188 LEU A 194 -1 O VAL A 192 N SER A 172 SHEET 3 B 6 ASP A 252 LYS A 258 1 O LYS A 257 N TYR A 189 SHEET 4 B 6 ASN A 264 LEU A 271 -1 O GLU A 266 N GLY A 256 SHEET 5 B 6 ALA A 276 LEU A 280 -1 O ALA A 276 N LEU A 271 SHEET 6 B 6 ILE A 170 GLU A 178 -1 N TRP A 171 O TYR A 277 SHEET 1 C 3 GLY A 231 LEU A 235 0 SHEET 2 C 3 ASP A 289 ARG A 297 -1 O GLY A 294 N ILE A 233 SHEET 3 C 3 LYS A 316 VAL A 325 -1 O GLN A 320 N VAL A 293 SITE 1 AC1 3 GLU A 193 GLN A 195 HOH A 655 CRYST1 44.010 49.120 44.260 90.00 118.41 90.00 P 1 21 1 2 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 0.022722 0.000000 0.012291 0.00000 SCALE2 0.000000 0.020358 0.000000 0.00000 SCALE3 0.000000 0.000000 0.025687 0.00000