HEADER HYDROLASE 29-OCT-98 1TUX TITLE HIGH RESOLUTION CRYSTAL STRUCTURE OF A THERMOSTABLE XYLANASE FROM TITLE 2 THERMOASCUS AURANTIACUS COMPND MOL_ID: 1; COMPND 2 MOLECULE: XYLANASE; COMPND 3 CHAIN: A; COMPND 4 EC: 3.2.1.8 SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: THERMOASCUS AURANTIACUS; SOURCE 3 ORGANISM_TAXID: 5087; SOURCE 4 STRAIN: LOCAL INDIAN SOIL; SOURCE 5 OTHER_DETAILS: FUNGAL SOURCE FROM THERMOASCUS AURANTIACUS XYLANASE KEYWDS XYLAN DEGRADATION, HYDROLASE, GLYCOSIDASE, ENZYME, 1, 4-BETA-XYLAN KEYWDS 2 XYLANOHYDROLASE EXPDTA X-RAY DIFFRACTION AUTHOR R.NATESH,P.BHANUMOORTHY,P.J.VITHAYATHIL,K.SEKAR,S.RAMAKUMAR, AUTHOR 2 M.A.VISWAMITRA REVDAT 4 03-APR-24 1TUX 1 SEQADV REVDAT 3 24-FEB-09 1TUX 1 VERSN REVDAT 2 01-APR-03 1TUX 1 JRNL REVDAT 1 22-JUL-99 1TUX 0 JRNL AUTH R.NATESH,P.BHANUMOORTHY,P.J.VITHAYATHIL,K.SEKAR,S.RAMAKUMAR, JRNL AUTH 2 M.A.VISWAMITRA JRNL TITL CRYSTAL STRUCTURE AT 1.8 A RESOLUTION AND PROPOSED AMINO JRNL TITL 2 ACID SEQUENCE OF A THERMOSTABLE XYLANASE FROM THERMOASCUS JRNL TITL 3 AURANTIACUS. JRNL REF J.MOL.BIOL. V. 288 999 1999 JRNL REFN ISSN 0022-2836 JRNL PMID 10329194 JRNL DOI 10.1006/JMBI.1999.2727 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH M.A.VISWAMITRA,P.BHANUMOORTHY,S.RAMAKUMAR,M.V.MANJULA, REMARK 1 AUTH 2 P.J.VITHAYATHIL,S.K.MURTHY,A.P.NAREN REMARK 1 TITL CRYSTALLIZATION AND PRELIMINARY X-RAY DIFFRACTION ANALYSIS REMARK 1 TITL 2 OF CRYSTALS OF THERMOASCUS AURANTIACUS XYLANASE REMARK 1 REF J.MOL.BIOL. V. 232 987 1993 REMARK 1 REFN ISSN 0022-2836 REMARK 2 REMARK 2 RESOLUTION. 1.80 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : X-PLOR 3.851 REMARK 3 AUTHORS : BRUNGER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.80 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 10.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 2.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : 1000000.000 REMARK 3 DATA CUTOFF LOW (ABS(F)) : 0.0010 REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 92.0 REMARK 3 NUMBER OF REFLECTIONS : 22454 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) : 0.160 REMARK 3 FREE R VALUE : 0.211 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 9.200 REMARK 3 FREE R VALUE TEST SET COUNT : 2235 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : 0.210 REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : 10 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 1.80 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.86 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 84.95 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 1866 REMARK 3 BIN R VALUE (WORKING SET) : 0.2300 REMARK 3 BIN FREE R VALUE : 0.2500 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 7.92 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 192 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : NULL REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 2296 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 0 REMARK 3 SOLVENT ATOMS : 266 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : NULL 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) : 0.16 REMARK 3 ESD FROM SIGMAA (A) : NULL REMARK 3 LOW RESOLUTION CUTOFF (A) : 5.00 REMARK 3 REMARK 3 CROSS-VALIDATED ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM C-V LUZZATI PLOT (A) : 0.21 REMARK 3 ESD FROM C-V SIGMAA (A) : NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.012 REMARK 3 BOND ANGLES (DEGREES) : 1.670 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 22.31 REMARK 3 IMPROPER ANGLES (DEGREES) : 1.470 REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. RMS SIGMA REMARK 3 MAIN-CHAIN BOND (A**2) : NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE (A**2) : NULL ; NULL REMARK 3 SIDE-CHAIN BOND (A**2) : NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE (A**2) : NULL ; NULL 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 : PARHCSDX.PRO REMARK 3 PARAMETER FILE 2 : NULL REMARK 3 PARAMETER FILE 3 : NULL REMARK 3 TOPOLOGY FILE 1 : TOPHCSDX.PRO REMARK 3 TOPOLOGY FILE 2 : NULL REMARK 3 TOPOLOGY FILE 3 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1TUX COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY BNL. REMARK 100 THE DEPOSITION ID IS D_1000176865. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 05-MAY-97 REMARK 200 TEMPERATURE (KELVIN) : 293 REMARK 200 PH : 7.2 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : N REMARK 200 RADIATION SOURCE : ROTATING ANODE REMARK 200 BEAMLINE : NULL REMARK 200 X-RAY GENERATOR MODEL : RIGAKU RUH2R REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418 REMARK 200 MONOCHROMATOR : GRAPHITE(002) REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : MARRESEARCH REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 22983 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.800 REMARK 200 RESOLUTION RANGE LOW (A) : 99.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 93.0 REMARK 200 DATA REDUNDANCY : 3.700 REMARK 200 R MERGE (I) : 0.05000 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : NULL REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.80 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.86 REMARK 200 COMPLETENESS FOR SHELL (%) : 86.1 REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : 0.11000 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : NULL REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: NULL REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: X-PLOR 3.851 REMARK 200 STARTING MODEL: STREPTOMYCES LIVIDANS XYLANASE REMARK 200 REMARK 200 REMARK: THE FULL ATOMIC COORDINATES OF THE WILD TYPE STREPTOMYCES REMARK 200 LIVIDANS XYLANASE KINDLY PROVIDED TO US BY PROF. Z. DEREWENDA REMARK 200 WERE USED AS THE STARTING MODEL FOR MOLECULAR REPLACEMENT. ONLY REMARK 200 CA COORDINATES OF STREPTOMYCES LIVIDANS XYLANASE ARE DEPOSITED REMARK 200 IN PDB WITH ID CODE 1XAS TILL DATE. STRUCTURE REFINEMENT USING REMARK 200 HIGH RESOLUTION DATA SETS AT 1.11 AND 0.89 A COLLECTED AT REMARK 200 DIFFERENT TEMPERATURES IS CURRENTLY REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 42.00 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.06 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PH 7.2 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 34.05000 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 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: 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 HIS A 83 CA - C - N ANGL. DEV. = -13.7 DEGREES REMARK 500 THR A 84 C - N - CA ANGL. DEV. = 17.1 DEGREES REMARK 500 THR A 84 N - CA - C ANGL. DEV. = 21.9 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 ASN A 47 -21.61 -144.90 REMARK 500 THR A 84 104.92 58.90 REMARK 500 GLU A 237 50.55 -146.19 REMARK 500 VAL A 269 -65.61 -96.63 REMARK 500 REMARK 500 REMARK: NULL REMARK 999 REMARK 999 SEQUENCE REMARK 999 THE SEQUENCE DEPOSITED IN THE SEQRES RECORDS IS IDENTIFIED REMARK 999 FROM THE ELECTRON DENSITY MAP INTERPRETATION. DBREF 1TUX A 2 301 UNP P23360 XYNA_THEAU 28 327 SEQADV 1TUX ASP A 11 UNP P23360 LYS 37 CONFLICT SEQADV 1TUX VAL A 96 UNP P23360 SER 122 CONFLICT SEQADV 1TUX ILE A 115 UNP P23360 LEU 141 CONFLICT SEQADV 1TUX ILE A 120 UNP P23360 LYS 146 CONFLICT SEQADV 1TUX ASN A 145 UNP P23360 LEU 171 CONFLICT SEQADV 1TUX ARG A 158 UNP P23360 GLN 184 CONFLICT SEQADV 1TUX LYS A 181 UNP P23360 TYR 207 CONFLICT SEQADV 1TUX SER A 185 UNP P23360 GLN 211 CONFLICT SEQADV 1TUX LYS A 189 UNP P23360 ASN 215 CONFLICT SEQADV 1TUX LYS A 193 UNP P23360 GLN 219 CONFLICT SEQADV 1TUX ILE A 218 UNP P23360 VAL 244 CONFLICT SEQADV 1TUX ASP A 219 UNP P23360 LEU 245 CONFLICT SEQADV 1TUX ALA A 220 UNP P23360 GLN 246 CONFLICT SEQADV 1TUX ASN A 224 UNP P23360 LEU 250 CONFLICT SEQADV 1TUX ILE A 240 UNP P23360 VAL 266 CONFLICT SEQADV 1TUX THR A 244 UNP P23360 SER 270 CONFLICT SEQADV 1TUX ASP A 250 UNP P23360 ASN 276 CONFLICT SEQADV 1TUX ASP A 257 UNP P23360 ASN 283 CONFLICT SEQADV 1TUX ASP A 259 UNP P23360 GLN 285 CONFLICT SEQADV 1TUX ILE A 262 UNP P23360 VAL 288 CONFLICT SEQADV 1TUX LEU A 300 UNP P23360 ASP 326 CONFLICT SEQRES 1 A 301 ALA ALA ALA GLN SER VAL ASP GLN LEU ILE ASP ALA ARG SEQRES 2 A 301 GLY LYS VAL TYR PHE GLY VAL ALA THR ASP GLN ASN ARG SEQRES 3 A 301 LEU THR THR GLY LYS ASN ALA ALA ILE ILE GLN ALA ASP SEQRES 4 A 301 PHE GLY GLN VAL THR PRO GLU ASN SER MET LYS TRP ASP SEQRES 5 A 301 ALA THR GLU PRO SER GLN GLY ASN PHE ASN PHE ALA GLY SEQRES 6 A 301 ALA ASP TYR LEU VAL ASN TRP ALA GLN GLN ASN GLY LYS SEQRES 7 A 301 LEU ILE ARG GLY HIS THR LEU VAL TRP HIS SER GLN LEU SEQRES 8 A 301 PRO SER TRP VAL VAL SER ILE THR ASP LYS ASN THR LEU SEQRES 9 A 301 THR ASN VAL MET LYS ASN HIS ILE THR THR ILE MET THR SEQRES 10 A 301 ARG TYR ILE GLY LYS ILE ARG ALA TRP ASP VAL VAL ASN SEQRES 11 A 301 GLU ALA PHE ASN GLU ASP GLY SER LEU ARG GLN THR VAL SEQRES 12 A 301 PHE ASN ASN VAL ILE GLY GLU ASP TYR ILE PRO ILE ALA SEQRES 13 A 301 PHE ARG THR ALA ARG ALA ALA ASP PRO ASN ALA LYS LEU SEQRES 14 A 301 TYR ILE ASN ASP TYR ASN LEU ASP SER ALA SER LYS PRO SEQRES 15 A 301 LYS THR SER ALA ILE VAL LYS ARG VAL LYS LYS TRP ARG SEQRES 16 A 301 ALA ALA GLY VAL PRO ILE ASP GLY ILE GLY SER GLN THR SEQRES 17 A 301 HIS LEU SER ALA GLY GLN GLY ALA SER ILE ASP ALA ALA SEQRES 18 A 301 LEU PRO ASN LEU ALA SER ALA GLY THR PRO GLU VAL ALA SEQRES 19 A 301 ILE THR GLU LEU ASP ILE ALA GLY ALA THR SER THR ASP SEQRES 20 A 301 TYR VAL ASP VAL VAL ASN ALA CYS LEU ASP VAL ASP SER SEQRES 21 A 301 CYS ILE GLY ILE THR VAL TRP GLY VAL ALA ASP PRO ASP SEQRES 22 A 301 SER TRP ARG ALA SER THR THR PRO LEU LEU PHE ASP GLY SEQRES 23 A 301 ASN PHE ASN PRO LYS PRO ALA TYR ASN ALA ILE VAL GLN SEQRES 24 A 301 LEU LEU FORMUL 2 HOH *266(H2 O) HELIX 1 1 VAL A 6 ALA A 12 1 7 HELIX 2 2 GLN A 24 LEU A 27 1 4 HELIX 3 3 ASN A 32 ASP A 39 1 8 HELIX 4 4 TRP A 51 THR A 54 1 4 HELIX 5 5 ALA A 64 GLN A 75 1 12 HELIX 6 6 SER A 93 VAL A 96 1 4 HELIX 7 7 LYS A 101 ARG A 118 1 18 HELIX 8 8 VAL A 143 VAL A 147 1 5 HELIX 9 9 GLU A 150 ALA A 163 5 14 HELIX 10 10 PRO A 182 ALA A 196 1 15 HELIX 11 11 GLN A 214 ALA A 228 5 15 HELIX 12 12 SER A 245 ASP A 257 1 13 HELIX 13 13 ASP A 271 ASP A 273 5 3 HELIX 14 14 ALA A 277 THR A 279 5 3 HELIX 15 15 PRO A 292 GLN A 299 1 8 SHEET 1 A 4 GLY A 263 VAL A 266 0 SHEET 2 A 4 TYR A 17 THR A 22 1 N TYR A 17 O ILE A 264 SHEET 3 A 4 GLN A 42 PRO A 45 1 N THR A 44 O VAL A 20 SHEET 4 A 4 LEU A 79 ARG A 81 1 N LEU A 79 O VAL A 43 SHEET 1 B 4 GLU A 232 ILE A 235 0 SHEET 2 B 4 GLY A 203 SER A 206 1 N ILE A 204 O GLU A 232 SHEET 3 B 4 LYS A 168 ASP A 173 1 N ILE A 171 O GLY A 203 SHEET 4 B 4 ALA A 125 ASN A 130 1 N TRP A 126 O LYS A 168 SSBOND 1 CYS A 255 CYS A 261 1555 1555 2.03 CRYST1 41.690 68.100 51.440 90.00 113.59 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 0.023987 0.000000 0.010474 0.00000 SCALE2 0.000000 0.014684 0.000000 0.00000 SCALE3 0.000000 0.000000 0.021213 0.00000