HEADER HYDROLASE 29-SEP-07 2RFH TITLE CRYSTAL STRUCTURE ANALYSIS OF CPA-2-BENZYL-3-NITROPROPANOIC TITLE 2 ACID COMPLEX COMPND MOL_ID: 1; COMPND 2 MOLECULE: CARBOXYPEPTIDASE A1; COMPND 3 CHAIN: A; COMPND 4 FRAGMENT: LIGAND BINDING DOMAIN; COMPND 5 EC: 3.4.17.1 SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: BOS TAURUS; SOURCE 3 ORGANISM_COMMON: BOVINE; SOURCE 4 ORGAN: PANCREAS KEYWDS PROTEIN-INHIBITOR COMPLEX, CARBOXYPEPTIDASE, HYDROLASE EXPDTA X-RAY DIFFRACTION AUTHOR S.-F.WANG,Z.-H.ZENG REVDAT 2 24-FEB-09 2RFH 1 VERSN REVDAT 1 22-APR-08 2RFH 0 JRNL AUTH S.-H.WANG,S.-F.WANG,W.XUAN,Z.-H.ZENG,J.-Y.JIN,J.MA, JRNL AUTH 2 G.R.TIAN JRNL TITL NITRO AS A NOVEL ZINC-BINDING GROUP IN THE JRNL TITL 2 INHIBITION OF CARBOXYPEPTIDASE A JRNL REF BIOORG.MED.CHEM. V. 16 3596 2008 JRNL REFN ISSN 0968-0896 JRNL PMID 18289863 JRNL DOI 10.1016/J.BMC.2008.02.010 REMARK 1 REMARK 2 REMARK 2 RESOLUTION. 1.70 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC 5.2.0019 REMARK 3 AUTHORS : MURSHUDOV,VAGIN,DODSON REMARK 3 REMARK 3 REFINEMENT TARGET : MAXIMUM LIKELIHOOD REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.70 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 20.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 98.6 REMARK 3 NUMBER OF REFLECTIONS : 27623 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) : 0.195 REMARK 3 R VALUE (WORKING SET) : 0.193 REMARK 3 FREE R VALUE : 0.227 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.000 REMARK 3 FREE R VALUE TEST SET COUNT : 1392 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) : 1.70 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.74 REMARK 3 REFLECTION IN BIN (WORKING SET) : 1911 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 97.37 REMARK 3 BIN R VALUE (WORKING SET) : 0.2490 REMARK 3 BIN FREE R VALUE SET COUNT : 92 REMARK 3 BIN FREE R VALUE : 0.3840 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 2436 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 16 REMARK 3 SOLVENT ATOMS : 198 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 10.80 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 0.05000 REMARK 3 B22 (A**2) : 0.32000 REMARK 3 B33 (A**2) : -0.36000 REMARK 3 B12 (A**2) : 0.00000 REMARK 3 B13 (A**2) : 0.08000 REMARK 3 B23 (A**2) : 0.00000 REMARK 3 REMARK 3 ESTIMATED OVERALL COORDINATE ERROR. REMARK 3 ESU BASED ON R VALUE (A): 0.138 REMARK 3 ESU BASED ON FREE R VALUE (A): 0.125 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.079 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 2.279 REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : 0.931 REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : 0.893 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES COUNT RMS WEIGHT REMARK 3 BOND LENGTHS REFINED ATOMS (A): 2518 ; 0.013 ; 0.022 REMARK 3 BOND LENGTHS OTHERS (A): NULL ; NULL ; NULL REMARK 3 BOND ANGLES REFINED ATOMS (DEGREES): 3423 ; 1.362 ; 1.934 REMARK 3 BOND ANGLES OTHERS (DEGREES): NULL ; NULL ; NULL REMARK 3 TORSION ANGLES, PERIOD 1 (DEGREES): 306 ; 5.609 ; 5.000 REMARK 3 TORSION ANGLES, PERIOD 2 (DEGREES): 115 ;33.771 ;23.739 REMARK 3 TORSION ANGLES, PERIOD 3 (DEGREES): 395 ;14.100 ;15.000 REMARK 3 TORSION ANGLES, PERIOD 4 (DEGREES): 11 ;15.723 ;15.000 REMARK 3 CHIRAL-CENTER RESTRAINTS (A**3): 372 ; 0.098 ; 0.200 REMARK 3 GENERAL PLANES REFINED ATOMS (A): 1928 ; 0.006 ; 0.020 REMARK 3 GENERAL PLANES OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED CONTACTS REFINED ATOMS (A): 1363 ; 0.212 ; 0.200 REMARK 3 NON-BONDED CONTACTS OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED TORSION REFINED ATOMS (A): 1733 ; 0.314 ; 0.200 REMARK 3 NON-BONDED TORSION OTHERS (A): NULL ; NULL ; NULL REMARK 3 H-BOND (X...Y) REFINED ATOMS (A): 170 ; 0.116 ; 0.200 REMARK 3 H-BOND (X...Y) OTHERS (A): NULL ; NULL ; NULL REMARK 3 POTENTIAL METAL-ION REFINED ATOMS (A): 1 ; 0.006 ; 0.200 REMARK 3 POTENTIAL METAL-ION OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY VDW REFINED ATOMS (A): 87 ; 0.278 ; 0.200 REMARK 3 SYMMETRY VDW OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY H-BOND REFINED ATOMS (A): 17 ; 0.119 ; 0.200 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): 1562 ; 0.757 ; 1.500 REMARK 3 MAIN-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE REFINED ATOMS (A**2): 2456 ; 1.229 ; 2.000 REMARK 3 SIDE-CHAIN BOND REFINED ATOMS (A**2): 1125 ; 1.992 ; 3.000 REMARK 3 SIDE-CHAIN ANGLE REFINED ATOMS (A**2): 967 ; 2.656 ; 4.500 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 REMARK 3 RIDING POSITIONS REMARK 4 REMARK 4 2RFH COMPLIES WITH FORMAT V. 3.15, 01-DEC-08 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 09-OCT-07. REMARK 100 THE RCSB ID CODE IS RCSB044794. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 16-APR-07 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 7.5 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 MICROMAX-007 REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : CONFOCAL REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : RIGAKU RAXIS IV++ REMARK 200 INTENSITY-INTEGRATION SOFTWARE : HKL-2000 REMARK 200 DATA SCALING SOFTWARE : SCALA REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 27657 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.700 REMARK 200 RESOLUTION RANGE LOW (A) : 38.420 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 98.7 REMARK 200 DATA REDUNDANCY : 7.160 REMARK 200 R MERGE (I) : 0.04500 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 30.2000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.70 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.76 REMARK 200 COMPLETENESS FOR SHELL (%) : 97.5 REMARK 200 DATA REDUNDANCY IN SHELL : 6.70 REMARK 200 R MERGE FOR SHELL (I) : 0.08900 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 14.900 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: CCP4 REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 34.27 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 1.87 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: LICL, TRIS, PH 7.5, SOAKING, REMARK 280 TEMPERATURE 277K 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 31.34900 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 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 SER A 57 9.94 122.23 REMARK 500 GLN A 122 -46.16 -137.13 REMARK 500 THR A 129 -172.44 -69.78 REMARK 500 SER A 199 -8.92 155.76 REMARK 500 GLN A 200 62.58 61.19 REMARK 500 ILE A 247 -77.30 -106.80 REMARK 500 TYR A 248 -175.63 175.76 REMARK 500 LEU A 271 -167.90 -78.17 REMARK 500 ASP A 273 -144.85 -111.68 REMARK 500 LEU A 280 51.92 -91.72 REMARK 500 REMARK 500 REMARK: NULL 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 ZN A1308 ZN REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 69 ND1 REMARK 620 2 GLU A 72 OE2 99.5 REMARK 620 3 HIS A 196 ND1 98.5 145.1 REMARK 620 4 23N A1309 OAB 130.3 97.3 93.5 REMARK 620 N 1 2 3 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ZN A 1308 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE 23N A 1309 DBREF 2RFH A 1 307 UNP A6H6Y4 A6H6Y4_BOVIN 111 417 SEQRES 1 A 307 ALA ARG SER THR ASN THR PHE ASN TYR ALA THR TYR HIS SEQRES 2 A 307 THR LEU ASP GLU ILE TYR ASP PHE MET ASP LEU LEU VAL SEQRES 3 A 307 ALA GLU HIS PRO GLN LEU VAL SER LYS LEU GLN ILE GLY SEQRES 4 A 307 ARG SER TYR GLU GLY ARG PRO ILE TYR VAL LEU LYS PHE SEQRES 5 A 307 SER THR GLY GLY SER ASN ARG PRO ALA ILE TRP ILE ASP SEQRES 6 A 307 LEU GLY ILE HIS SER ARG GLU TRP ILE THR GLN ALA THR SEQRES 7 A 307 GLY VAL TRP PHE ALA LYS LYS PHE THR GLU ASP TYR GLY SEQRES 8 A 307 GLN ASP PRO SER PHE THR ALA ILE LEU ASP SER MET ASP SEQRES 9 A 307 ILE PHE LEU GLU ILE VAL THR ASN PRO ASP GLY PHE ALA SEQRES 10 A 307 PHE THR HIS SER GLN ASN ARG LEU TRP ARG LYS THR ARG SEQRES 11 A 307 SER VAL THR SER SER SER LEU CYS VAL GLY VAL ASP ALA SEQRES 12 A 307 ASN ARG ASN TRP ASP ALA GLY PHE GLY LYS ALA GLY ALA SEQRES 13 A 307 SER SER SER PRO CYS SER GLU THR TYR HIS GLY LYS TYR SEQRES 14 A 307 ALA ASN SER GLU VAL GLU VAL LYS SER ILE VAL ASP PHE SEQRES 15 A 307 VAL LYS ASP HIS GLY ASN PHE LYS ALA PHE LEU SER ILE SEQRES 16 A 307 HIS SER TYR SER GLN LEU LEU LEU TYR PRO TYR GLY TYR SEQRES 17 A 307 THR THR GLN SER ILE PRO ASP LYS THR GLU LEU ASN GLN SEQRES 18 A 307 VAL ALA LYS SER ALA VAL ALA ALA LEU LYS SER LEU TYR SEQRES 19 A 307 GLY THR SER TYR LYS TYR GLY SER ILE ILE THR THR ILE SEQRES 20 A 307 TYR GLN ALA SER GLY GLY SER ILE ASP TRP SER TYR ASN SEQRES 21 A 307 GLN GLY ILE LYS TYR SER PHE THR PHE GLU LEU ARG ASP SEQRES 22 A 307 THR GLY ARG TYR GLY PHE LEU LEU PRO ALA SER GLN ILE SEQRES 23 A 307 ILE PRO THR ALA GLN GLU THR TRP LEU GLY VAL LEU THR SEQRES 24 A 307 ILE MET GLU HIS THR VAL ASN ASN HET ZN A1308 1 HET 23N A1309 15 HETNAM ZN ZINC ION HETNAM 23N (2R)-2-BENZYL-3-NITROPROPANOIC ACID FORMUL 2 ZN ZN 2+ FORMUL 3 23N C10 H11 N O4 FORMUL 4 HOH *198(H2 O) HELIX 1 1 THR A 14 HIS A 29 1 16 HELIX 2 2 GLU A 72 TYR A 90 1 19 HELIX 3 3 ASP A 93 MET A 103 1 11 HELIX 4 4 ASN A 112 GLN A 122 1 11 HELIX 5 5 ASP A 142 ASN A 146 5 5 HELIX 6 6 GLU A 173 GLY A 187 1 15 HELIX 7 7 ASP A 215 LEU A 233 1 19 HELIX 8 8 ILE A 243 ILE A 247 1 5 HELIX 9 9 GLY A 253 GLN A 261 1 9 HELIX 10 10 PRO A 282 SER A 284 5 3 HELIX 11 11 GLN A 285 ASN A 306 1 22 SHEET 1 A 8 VAL A 33 ARG A 40 0 SHEET 2 A 8 PRO A 46 PHE A 52 -1 O VAL A 49 N LEU A 36 SHEET 3 A 8 ASP A 104 GLU A 108 -1 O ILE A 105 N PHE A 52 SHEET 4 A 8 ALA A 61 LEU A 66 1 N ILE A 64 O GLU A 108 SHEET 5 A 8 PHE A 189 HIS A 196 1 O ILE A 195 N ASP A 65 SHEET 6 A 8 TYR A 265 GLU A 270 1 O PHE A 269 N HIS A 196 SHEET 7 A 8 LEU A 201 TYR A 204 -1 N LEU A 203 O THR A 268 SHEET 8 A 8 LYS A 239 SER A 242 1 O LYS A 239 N LEU A 202 SSBOND 1 CYS A 138 CYS A 161 1555 1555 2.00 LINK ND1 HIS A 69 ZN ZN A1308 1555 1555 2.11 LINK OE2 GLU A 72 ZN ZN A1308 1555 1555 2.19 LINK ND1 HIS A 196 ZN ZN A1308 1555 1555 2.05 LINK ZN ZN A1308 OAB 23N A1309 1555 1555 2.10 CISPEP 1 GLY A 56 SER A 57 0 -1.69 CISPEP 2 SER A 197 TYR A 198 0 -3.29 CISPEP 3 PRO A 205 TYR A 206 0 -2.49 CISPEP 4 ARG A 272 ASP A 273 0 -2.33 SITE 1 AC1 3 HIS A 69 GLU A 72 HIS A 196 SITE 1 AC2 15 HIS A 69 GLU A 72 ARG A 127 ASN A 144 SITE 2 AC2 15 ARG A 145 HIS A 196 SER A 197 ILE A 243 SITE 3 AC2 15 ALA A 250 GLU A 270 HOH A1377 HOH A1416 SITE 4 AC2 15 HOH A1441 HOH A1450 HOH A1501 CRYST1 42.297 62.698 48.974 90.00 96.99 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 0.023643 0.000000 0.002899 0.00000 SCALE2 0.000000 0.015950 0.000000 0.00000 SCALE3 0.000000 0.000000 0.020572 0.00000