HEADER HYDROLASE 16-FEB-00 1EGQ TITLE ENHANCEMENT OF ENZYME ACTIVITY THROUGH THREE-PHASE TITLE 2 PARTITIONING: CRYSTAL STRUCTURE OF A MODIFIED SERINE TITLE 3 PROTEINASE AT 1.5 A RESOLUTION COMPND MOL_ID: 1; COMPND 2 MOLECULE: PROTEINASE K; COMPND 3 CHAIN: A; COMPND 4 EC: 3.4.21.64; COMPND 5 OTHER_DETAILS: TRIPHASIC TREATED SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ENGYODONTIUM ALBUM; SOURCE 3 ORGANISM_TAXID: 37998 KEYWDS PROTEINASE K, CRYSTAL STRUCTURE, ANHYDROUS ORGANIC SOLVENTS, KEYWDS 2 STABILITY, ENHANCED ACTIVITY, HYDROLASE EXPDTA X-RAY DIFFRACTION AUTHOR R.K.SINGH,S.GOURINATH,S.SHARMA,I.RAY,M.N.GUPTA,T.P.SINGH REVDAT 4 24-FEB-09 1EGQ 1 VERSN REVDAT 3 01-APR-03 1EGQ 1 JRNL REVDAT 2 18-JUL-01 1EGQ 1 JRNL REMARK REVDAT 1 21-FEB-01 1EGQ 0 JRNL AUTH R.K.SINGH,S.GOURINATH,S.SHARMA,I.ROY,M.N.GUPTA, JRNL AUTH 2 C.BETZEL,A.SRINIVASAN,T.P.SINGH JRNL TITL ENHANCEMENT OF ENZYME ACTIVITY THROUGH THREE-PHASE JRNL TITL 2 PARTITIONING: CRYSTAL STRUCTURE OF A MODIFIED JRNL TITL 3 SERINE PROTEINASE AT 1.5 A RESOLUTION. JRNL REF PROTEIN ENG. V. 14 307 2001 JRNL REFN ISSN 0269-2139 JRNL PMID 11438752 JRNL DOI 10.1093/PROTEIN/14.5.307 REMARK 1 REMARK 2 REMARK 2 RESOLUTION. 1.55 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC REMARK 3 AUTHORS : MURSHUDOV,VAGIN,DODSON REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.55 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 10.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 93.0 REMARK 3 NUMBER OF REFLECTIONS : 34371 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) : 0.197 REMARK 3 R VALUE (WORKING SET) : 0.193 REMARK 3 FREE R VALUE : 0.206 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 7.600 REMARK 3 FREE R VALUE TEST SET COUNT : 2600 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 2029 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 10 REMARK 3 SOLVENT ATOMS : 243 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 22.10 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 19.70 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 0.54000 REMARK 3 B22 (A**2) : 0.54000 REMARK 3 B33 (A**2) : -1.09000 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): NULL REMARK 3 ESU BASED ON FREE R VALUE (A): NULL REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): NULL REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 DISTANCE RESTRAINTS. RMS SIGMA REMARK 3 BOND LENGTH (A) : NULL ; NULL REMARK 3 ANGLE DISTANCE (A) : NULL ; NULL REMARK 3 INTRAPLANAR 1-4 DISTANCE (A) : NULL ; NULL REMARK 3 H-BOND OR METAL COORDINATION (A) : NULL ; NULL REMARK 3 REMARK 3 PLANE RESTRAINT (A) : NULL ; NULL REMARK 3 CHIRAL-CENTER RESTRAINT (A**3) : NULL ; NULL REMARK 3 REMARK 3 NON-BONDED CONTACT RESTRAINTS. REMARK 3 SINGLE TORSION (A) : NULL ; NULL REMARK 3 MULTIPLE TORSION (A) : NULL ; NULL REMARK 3 H-BOND (X...Y) (A) : NULL ; NULL REMARK 3 H-BOND (X-H...Y) (A) : NULL ; NULL REMARK 3 REMARK 3 CONFORMATIONAL TORSION ANGLE RESTRAINTS. REMARK 3 SPECIFIED (DEGREES) : NULL ; NULL REMARK 3 PLANAR (DEGREES) : NULL ; NULL REMARK 3 STAGGERED (DEGREES) : NULL ; NULL REMARK 3 TRANSVERSE (DEGREES) : NULL ; 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 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1EGQ COMPLIES WITH FORMAT V. 3.15, 01-DEC-08 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 22-FEB-00. REMARK 100 THE RCSB ID CODE IS RCSB010555. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 16-JUN-99 REMARK 200 TEMPERATURE (KELVIN) : 285 REMARK 200 PH : 6.5 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 RU300 REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418 REMARK 200 MONOCHROMATOR : NULL 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 : 34371 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.500 REMARK 200 RESOLUTION RANGE LOW (A) : 10.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : -3.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 96.0 REMARK 200 DATA REDUNDANCY : 7.200 REMARK 200 R MERGE (I) : 0.06800 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 17.7000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.55 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.65 REMARK 200 COMPLETENESS FOR SHELL (%) : 75.0 REMARK 200 DATA REDUNDANCY IN SHELL : 2.20 REMARK 200 R MERGE FOR SHELL (I) : 0.14500 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: NULL REMARK 200 SOFTWARE USED: AMORE REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 42.59 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.14 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: SODIUM NITRATE, CALCIUM CHLORIDE, REMARK 280 TRIS-HCL, PH 6.5, MICRODIALYSIS, TEMPERATURE 277K 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 53.18000 REMARK 290 SMTRY1 3 0.000000 -1.000000 0.000000 34.14500 REMARK 290 SMTRY2 3 1.000000 0.000000 0.000000 34.14500 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 79.77000 REMARK 290 SMTRY1 4 0.000000 1.000000 0.000000 34.14500 REMARK 290 SMTRY2 4 -1.000000 0.000000 0.000000 34.14500 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 26.59000 REMARK 290 SMTRY1 5 -1.000000 0.000000 0.000000 34.14500 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 34.14500 REMARK 290 SMTRY3 5 0.000000 0.000000 -1.000000 79.77000 REMARK 290 SMTRY1 6 1.000000 0.000000 0.000000 34.14500 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 34.14500 REMARK 290 SMTRY3 6 0.000000 0.000000 -1.000000 26.59000 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 53.18000 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: 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 O HOH A 615 O HOH A 615 8665 2.17 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 39 -138.15 -158.99 REMARK 500 ASP A 98 1.01 -69.98 REMARK 500 SER A 216 -166.57 -114.51 REMARK 500 ASN A 270 73.46 -112.13 REMARK 500 REMARK 500 REMARK: NULL REMARK 525 REMARK 525 SOLVENT REMARK 525 REMARK 525 THE SOLVENT MOLECULES HAVE CHAIN IDENTIFIERS THAT REMARK 525 INDICATE THE POLYMER CHAIN WITH WHICH THEY ARE MOST REMARK 525 CLOSELY ASSOCIATED. THE REMARK LISTS ALL THE SOLVENT REMARK 525 MOLECULES WHICH ARE MORE THAN 5A AWAY FROM THE REMARK 525 NEAREST POLYMER CHAIN (M = MODEL NUMBER; REMARK 525 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE REMARK 525 NUMBER; I=INSERTION CODE): REMARK 525 REMARK 525 M RES CSSEQI REMARK 525 HOH A 718 DISTANCE = 5.87 ANGSTROMS REMARK 620 REMARK 620 METAL COORDINATION REMARK 620 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 620 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE): REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CA A 280 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HOH A 501 O REMARK 620 2 PRO A 175 O 75.5 REMARK 620 3 VAL A 177 O 141.3 86.9 REMARK 620 4 ASP A 200 OD1 122.8 160.2 82.1 REMARK 620 5 HOH A 502 O 71.9 88.7 73.5 103.7 REMARK 620 6 HOH A 504 O 135.5 82.9 73.8 78.2 146.6 REMARK 620 7 ASP A 200 OD2 74.3 149.6 115.1 49.8 78.6 122.1 REMARK 620 8 HOH A 503 O 69.6 95.6 147.6 85.3 138.7 74.5 77.3 REMARK 620 N 1 2 3 4 5 6 7 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CA A 281 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASP A 260 OD1 REMARK 620 2 ASP A 260 OD2 48.5 REMARK 620 3 HOH A 505 O 76.3 81.3 REMARK 620 4 HOH A 506 O 83.6 82.6 159.5 REMARK 620 5 THR A 16 O 79.8 128.2 91.0 89.0 REMARK 620 N 1 2 3 4 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 280 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 281 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ACY A 301 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ACY A 303 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1CNM RELATED DB: PDB REMARK 900 1CNM CONTAINS THE SAME PROTEIN TREATED WITH ANHYDROUS REMARK 900 ORGANIC SOLVENT AT 343K DBREF 1EGQ A 1 279 UNP P06873 PRTK_TRIAL 106 384 SEQRES 1 A 279 ALA ALA GLN THR ASN ALA PRO TRP GLY LEU ALA ARG ILE SEQRES 2 A 279 SER SER THR SER PRO GLY THR SER THR TYR TYR TYR ASP SEQRES 3 A 279 GLU SER ALA GLY GLN GLY SER CYS VAL TYR VAL ILE ASP SEQRES 4 A 279 THR GLY ILE GLU ALA SER HIS PRO GLU PHE GLU GLY ARG SEQRES 5 A 279 ALA GLN MET VAL LYS THR TYR TYR TYR SER SER ARG ASP SEQRES 6 A 279 GLY ASN GLY HIS GLY THR HIS CYS ALA GLY THR VAL GLY SEQRES 7 A 279 SER ARG THR TYR GLY VAL ALA LYS LYS THR GLN LEU PHE SEQRES 8 A 279 GLY VAL LYS VAL LEU ASP ASP ASN GLY SER GLY GLN TYR SEQRES 9 A 279 SER THR ILE ILE ALA GLY MET ASP PHE VAL ALA SER ASP SEQRES 10 A 279 LYS ASN ASN ARG ASN CYS PRO LYS GLY VAL VAL ALA SER SEQRES 11 A 279 LEU SER LEU GLY GLY GLY TYR SER SER SER VAL ASN SER SEQRES 12 A 279 ALA ALA ALA ARG LEU GLN SER SER GLY VAL MET VAL ALA SEQRES 13 A 279 VAL ALA ALA GLY ASN ASN ASN ALA ASP ALA ARG ASN TYR SEQRES 14 A 279 SER PRO ALA SER GLU PRO SER VAL CYS THR VAL GLY ALA SEQRES 15 A 279 SER ASP ARG TYR ASP ARG ARG SER SER PHE SER ASN TYR SEQRES 16 A 279 GLY SER VAL LEU ASP ILE PHE GLY PRO GLY THR SER ILE SEQRES 17 A 279 LEU SER THR TRP ILE GLY GLY SER THR ARG SER ILE SER SEQRES 18 A 279 GLY THR SER MET ALA THR PRO HIS VAL ALA GLY LEU ALA SEQRES 19 A 279 ALA TYR LEU MET THR LEU GLY LYS THR THR ALA ALA SER SEQRES 20 A 279 ALA CYS ARG TYR ILE ALA ASP THR ALA ASN LYS GLY ASP SEQRES 21 A 279 LEU SER ASN ILE PRO PHE GLY THR VAL ASN LEU LEU ALA SEQRES 22 A 279 TYR ASN ASN TYR GLN ALA HET CA A 280 1 HET CA A 281 1 HET ACY A 301 4 HET ACY A 303 4 HETNAM CA CALCIUM ION HETNAM ACY ACETIC ACID FORMUL 2 CA 2(CA 2+) FORMUL 4 ACY 2(C2 H4 O2) FORMUL 6 HOH *243(H2 O) HELIX 1 1 PRO A 7 SER A 14 1 8 HELIX 2 2 HIS A 46 GLU A 50 5 5 HELIX 3 3 GLY A 68 SER A 79 1 12 HELIX 4 4 GLN A 103 LYS A 118 1 16 HELIX 5 5 ASN A 119 ARG A 121 5 3 HELIX 6 6 SER A 138 SER A 151 1 14 HELIX 7 7 GLY A 222 LEU A 240 1 19 HELIX 8 8 SER A 247 THR A 255 1 9 SHEET 1 A 2 ALA A 2 GLN A 3 0 SHEET 2 A 2 TYR A 23 TYR A 24 -1 N TYR A 23 O GLN A 3 SHEET 1 B 7 ALA A 53 THR A 58 0 SHEET 2 B 7 GLN A 89 LYS A 94 1 O LEU A 90 N GLN A 54 SHEET 3 B 7 SER A 33 ASP A 39 1 O SER A 33 N GLN A 89 SHEET 4 B 7 GLY A 126 LEU A 131 1 O GLY A 126 N CYS A 34 SHEET 5 B 7 VAL A 153 ALA A 158 1 O MET A 154 N ALA A 129 SHEET 6 B 7 CYS A 178 SER A 183 1 O CYS A 178 N VAL A 157 SHEET 7 B 7 ILE A 201 PRO A 204 1 O ILE A 201 N GLY A 181 SHEET 1 C 2 GLY A 135 GLY A 136 0 SHEET 2 C 2 TYR A 169 SER A 170 -1 N SER A 170 O GLY A 135 SHEET 1 D 2 ILE A 208 TRP A 212 0 SHEET 2 D 2 SER A 216 ILE A 220 -1 O SER A 216 N TRP A 212 SHEET 1 E 2 ASN A 257 LYS A 258 0 SHEET 2 E 2 LEU A 271 LEU A 272 -1 O LEU A 272 N ASN A 257 SSBOND 1 CYS A 34 CYS A 123 1555 1555 2.02 SSBOND 2 CYS A 178 CYS A 249 1555 1555 2.03 LINK CA CA A 280 O HOH A 501 1555 1555 2.67 LINK CA CA A 280 O PRO A 175 1555 1555 2.48 LINK CA CA A 280 O VAL A 177 1555 1555 2.52 LINK CA CA A 280 OD1 ASP A 200 1555 1555 2.53 LINK CA CA A 280 O HOH A 502 1555 1555 2.63 LINK CA CA A 280 O HOH A 504 1555 1555 2.62 LINK CA CA A 280 OD2 ASP A 200 1555 1555 2.71 LINK CA CA A 280 O HOH A 503 1555 1555 2.65 LINK CA CA A 281 OD1 ASP A 260 1555 1555 2.68 LINK CA CA A 281 OD2 ASP A 260 1555 1555 2.71 LINK CA CA A 281 O HOH A 505 1555 1555 2.91 LINK CA CA A 281 O HOH A 506 1555 1555 2.91 LINK CA CA A 281 O THR A 16 1555 1555 2.54 CISPEP 1 SER A 170 PRO A 171 0 -0.54 SITE 1 AC1 7 PRO A 175 VAL A 177 ASP A 200 HOH A 501 SITE 2 AC1 7 HOH A 502 HOH A 503 HOH A 504 SITE 1 AC2 4 THR A 16 ASP A 260 HOH A 505 HOH A 506 SITE 1 AC3 5 TYR A 61 LYS A 94 ASP A 97 ASP A 98 SITE 2 AC3 5 HOH A 530 SITE 1 AC4 5 HIS A 69 ASN A 161 SER A 221 GLY A 222 SITE 2 AC4 5 SER A 224 CRYST1 68.290 68.290 106.360 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 0.014643 0.000000 0.000000 0.00000 SCALE2 0.000000 0.014643 0.000000 0.00000 SCALE3 0.000000 0.000000 0.009402 0.00000