HEADER LYASE 25-SEP-14 4RFC TITLE HUMAN CARBONIC ANHYDRASE II IN COMPLEX WITH TERT-BUTYL 4-(4- TITLE 2 SULFAMOYLPHENOXY)BUTYLCARBAMATE COMPND MOL_ID: 1; COMPND 2 MOLECULE: CARBONIC ANHYDRASE 2; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: CARBONATE DEHYDRATASE II, CARBONIC ANHYDRASE C, CAC, COMPND 5 CARBONIC ANHYDRASE II, CA-II; COMPND 6 EC: 4.2.1.1; COMPND 7 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: HOMO SAPIENS; SOURCE 3 ORGANISM_COMMON: HUMAN; SOURCE 4 ORGANISM_TAXID: 9606; SOURCE 5 GENE: CA2; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 562 KEYWDS SULFONAMIDE, CARBONIC ANHYDRASE, ANTIGLAUCOMA, O-(-AMINOALKYL)- KEYWDS 2 BENZENESULFONAMIDES, LYASE EXPDTA X-RAY DIFFRACTION AUTHOR M.BOZDAG,M.A.PINARD,F.CARTA,E.MASINI,A.SCOZZAFAVA,R.MCKENNA, AUTHOR 2 C.T.SUPURAN REVDAT 3 28-FEB-24 4RFC 1 REMARK LINK REVDAT 2 22-NOV-17 4RFC 1 REMARK REVDAT 1 15-APR-15 4RFC 0 JRNL AUTH M.BOZDAG,M.PINARD,F.CARTA,E.MASINI,A.SCOZZAFAVA,R.MCKENNA, JRNL AUTH 2 C.T.SUPURAN JRNL TITL A CLASS OF 4-SULFAMOYLPHENYL-OMEGA-AMINOALKYL ETHERS WITH JRNL TITL 2 EFFECTIVE CARBONIC ANHYDRASE INHIBITORY ACTION AND JRNL TITL 3 ANTIGLAUCOMA EFFECTS. JRNL REF J.MED.CHEM. V. 57 9673 2014 JRNL REFN ISSN 0022-2623 JRNL PMID 25358036 JRNL DOI 10.1021/JM501497M REMARK 2 REMARK 2 RESOLUTION. 1.65 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PHENIX 1.9_1692 REMARK 3 AUTHORS : PAUL ADAMS,PAVEL AFONINE,VINCENT CHEN,IAN REMARK 3 : DAVIS,KRESHNA GOPAL,RALF GROSSE-KUNSTLEVE, REMARK 3 : LI-WEI HUNG,ROBERT IMMORMINO,TOM IOERGER, REMARK 3 : AIRLIE MCCOY,ERIK MCKEE,NIGEL MORIARTY, REMARK 3 : REETAL PAI,RANDY READ,JANE RICHARDSON, REMARK 3 : DAVID RICHARDSON,TOD ROMO,JIM SACCHETTINI, REMARK 3 : NICHOLAS SAUTER,JACOB SMITH,LAURENT REMARK 3 : STORONI,TOM TERWILLIGER,PETER ZWART REMARK 3 REMARK 3 REFINEMENT TARGET : MLHL REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.65 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 19.80 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 0.030 REMARK 3 COMPLETENESS FOR RANGE (%) : 83.8 REMARK 3 NUMBER OF REFLECTIONS : 24737 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.226 REMARK 3 R VALUE (WORKING SET) : 0.224 REMARK 3 FREE R VALUE : 0.260 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 4.980 REMARK 3 FREE R VALUE TEST SET COUNT : 1232 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT (IN BINS). REMARK 3 BIN RESOLUTION RANGE COMPL. NWORK NFREE RWORK RFREE REMARK 3 1 19.8025 - 3.4167 0.93 2963 162 0.1910 0.2296 REMARK 3 2 3.4167 - 2.7142 0.97 3051 160 0.1908 0.2265 REMARK 3 3 2.7142 - 2.3717 0.95 2946 163 0.1990 0.2202 REMARK 3 4 2.3717 - 2.1552 0.91 2842 149 0.2025 0.2320 REMARK 3 5 2.1552 - 2.0008 0.88 2723 144 0.2197 0.2748 REMARK 3 6 2.0008 - 1.8830 0.82 2538 134 0.2626 0.2998 REMARK 3 7 1.8830 - 1.7887 0.75 2329 113 0.3286 0.3677 REMARK 3 8 1.7887 - 1.7109 0.70 2175 107 0.3951 0.4950 REMARK 3 9 1.7109 - 1.6451 0.63 1938 100 0.4531 0.4818 REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : FLAT BULK SOLVENT MODEL REMARK 3 SOLVENT RADIUS : 1.11 REMARK 3 SHRINKAGE RADIUS : 0.90 REMARK 3 K_SOL : NULL REMARK 3 B_SOL : NULL REMARK 3 REMARK 3 ERROR ESTIMATES. REMARK 3 COORDINATE ERROR (MAXIMUM-LIKELIHOOD BASED) : 0.320 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 31.110 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 14.90 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 20.32 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 TWINNING INFORMATION. REMARK 3 FRACTION: NULL REMARK 3 OPERATOR: NULL REMARK 3 REMARK 3 DEVIATIONS FROM IDEAL VALUES. REMARK 3 RMSD COUNT REMARK 3 BOND : 0.006 2177 REMARK 3 ANGLE : 1.059 2965 REMARK 3 CHIRALITY : 0.045 306 REMARK 3 PLANARITY : 0.005 384 REMARK 3 DIHEDRAL : 14.631 814 REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : 1 REMARK 3 TLS GROUP : 1 REMARK 3 SELECTION: ALL REMARK 3 ORIGIN FOR THE GROUP (A): 11.6961 -1.1220 16.0157 REMARK 3 T TENSOR REMARK 3 T11: 0.0921 T22: 0.0946 REMARK 3 T33: 0.0948 T12: -0.0074 REMARK 3 T13: 0.0013 T23: 0.0037 REMARK 3 L TENSOR REMARK 3 L11: 0.9061 L22: 0.8635 REMARK 3 L33: 0.5332 L12: -0.2130 REMARK 3 L13: 0.0733 L23: -0.1311 REMARK 3 S TENSOR REMARK 3 S11: -0.0324 S12: -0.0427 S13: 0.0361 REMARK 3 S21: 0.0097 S22: 0.0277 S23: -0.0220 REMARK 3 S31: -0.0182 S32: 0.0313 S33: 0.0003 REMARK 3 REMARK 3 NCS DETAILS REMARK 3 NUMBER OF NCS GROUPS : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 4RFC COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 26-SEP-14. REMARK 100 THE DEPOSITION ID IS D_1000087275. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 06-SEP-13 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 7.8 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 RUH3R REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418 REMARK 200 MONOCHROMATOR : VARIMAX OPTICS REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : RIGAKU RAXIS IV++ REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 24737 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.600 REMARK 200 RESOLUTION RANGE LOW (A) : 20.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 2.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 98.8 REMARK 200 DATA REDUNDANCY : NULL REMARK 200 R MERGE (I) : NULL 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 (%) : 99.5 REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : NULL 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: PHASER REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 40.90 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.08 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 50 MM TRIS-HCL PH 7.8, 0.24 MM (FINAL REMARK 280 CONCENTRATION) TERT-BUTYL 6-(4-SULFAMOYLPHENOXY)HEXYLCARBAMATE, REMARK 280 VAPOR DIFFUSION, HANGING 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 20.65600 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 MET A 1 REMARK 465 SER A 2 REMARK 465 HIS A 3 REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS IN SAME ASYMMETRIC UNIT REMARK 500 REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT. REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI DISTANCE REMARK 500 NZ LYS A 80 OG1 THR A 87 2.16 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 LYS A 111 -0.56 71.28 REMARK 500 PHE A 176 69.69 -151.94 REMARK 500 ASN A 244 50.28 -92.43 REMARK 500 LYS A 252 -134.07 50.61 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 A 301 ZN REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 94 NE2 REMARK 620 2 HIS A 96 NE2 102.7 REMARK 620 3 HIS A 119 ND1 115.1 99.8 REMARK 620 4 3O1 A 302 NAD 111.6 110.9 115.1 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 301 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE 3O1 A 302 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 4RFD RELATED DB: PDB DBREF 4RFC A 1 261 UNP P00918 CAH2_HUMAN 1 260 SEQRES 1 A 260 MET SER HIS HIS TRP GLY TYR GLY LYS HIS ASN GLY PRO SEQRES 2 A 260 GLU HIS TRP HIS LYS ASP PHE PRO ILE ALA LYS GLY GLU SEQRES 3 A 260 ARG GLN SER PRO VAL ASP ILE ASP THR HIS THR ALA LYS SEQRES 4 A 260 TYR ASP PRO SER LEU LYS PRO LEU SER VAL SER TYR ASP SEQRES 5 A 260 GLN ALA THR SER LEU ARG ILE LEU ASN ASN GLY HIS ALA SEQRES 6 A 260 PHE ASN VAL GLU PHE ASP ASP SER GLN ASP LYS ALA VAL SEQRES 7 A 260 LEU LYS GLY GLY PRO LEU ASP GLY THR TYR ARG LEU ILE SEQRES 8 A 260 GLN PHE HIS PHE HIS TRP GLY SER LEU ASP GLY GLN GLY SEQRES 9 A 260 SER GLU HIS THR VAL ASP LYS LYS LYS TYR ALA ALA GLU SEQRES 10 A 260 LEU HIS LEU VAL HIS TRP ASN THR LYS TYR GLY ASP PHE SEQRES 11 A 260 GLY LYS ALA VAL GLN GLN PRO ASP GLY LEU ALA VAL LEU SEQRES 12 A 260 GLY ILE PHE LEU LYS VAL GLY SER ALA LYS PRO GLY LEU SEQRES 13 A 260 GLN LYS VAL VAL ASP VAL LEU ASP SER ILE LYS THR LYS SEQRES 14 A 260 GLY LYS SER ALA ASP PHE THR ASN PHE ASP PRO ARG GLY SEQRES 15 A 260 LEU LEU PRO GLU SER LEU ASP TYR TRP THR TYR PRO GLY SEQRES 16 A 260 SER LEU THR THR PRO PRO LEU LEU GLU CYS VAL THR TRP SEQRES 17 A 260 ILE VAL LEU LYS GLU PRO ILE SER VAL SER SER GLU GLN SEQRES 18 A 260 VAL LEU LYS PHE ARG LYS LEU ASN PHE ASN GLY GLU GLY SEQRES 19 A 260 GLU PRO GLU GLU LEU MET VAL ASP ASN TRP ARG PRO ALA SEQRES 20 A 260 GLN PRO LEU LYS ASN ARG GLN ILE LYS ALA SER PHE LYS HET ZN A 301 1 HET 3O1 A 302 23 HETNAM ZN ZINC ION HETNAM 3O1 TERT-BUTYL 4-(4-SULFAMOYLPHENOXY)BUTYLCARBAMATE HETSYN 3O1 TERT-BUTYL 6-(4-SULFAMOYLPHENOXY)HEXYLCARBAMATE FORMUL 2 ZN ZN 2+ FORMUL 3 3O1 C15 H24 N2 O5 S FORMUL 4 HOH *50(H2 O) HELIX 1 1 GLY A 12 ASP A 19 5 8 HELIX 2 2 PHE A 20 GLY A 25 5 6 HELIX 3 3 LYS A 127 GLY A 129 5 3 HELIX 4 4 ASP A 130 VAL A 135 1 6 HELIX 5 5 LYS A 154 GLY A 156 5 3 HELIX 6 6 LEU A 157 LEU A 164 1 8 HELIX 7 7 ASP A 165 LYS A 168 5 4 HELIX 8 8 ASP A 180 LEU A 185 5 6 HELIX 9 9 SER A 219 ARG A 227 1 9 SHEET 1 A 2 ASP A 32 ILE A 33 0 SHEET 2 A 2 THR A 108 VAL A 109 1 O THR A 108 N ILE A 33 SHEET 1 B10 LYS A 39 TYR A 40 0 SHEET 2 B10 LYS A 257 ALA A 258 1 O ALA A 258 N LYS A 39 SHEET 3 B10 TYR A 191 GLY A 196 -1 N THR A 193 O LYS A 257 SHEET 4 B10 VAL A 207 LEU A 212 -1 O VAL A 207 N GLY A 196 SHEET 5 B10 LEU A 141 VAL A 150 1 N GLY A 145 O ILE A 210 SHEET 6 B10 ALA A 116 ASN A 124 -1 N LEU A 118 O ILE A 146 SHEET 7 B10 TYR A 88 TRP A 97 -1 N GLN A 92 O VAL A 121 SHEET 8 B10 PHE A 66 PHE A 70 -1 N VAL A 68 O PHE A 93 SHEET 9 B10 SER A 56 ASN A 61 -1 N LEU A 57 O GLU A 69 SHEET 10 B10 SER A 173 ASP A 175 -1 O ALA A 174 N ILE A 59 SHEET 1 C 6 LEU A 47 SER A 50 0 SHEET 2 C 6 VAL A 78 GLY A 81 -1 O LYS A 80 N SER A 48 SHEET 3 C 6 TYR A 88 TRP A 97 -1 O TYR A 88 N LEU A 79 SHEET 4 C 6 ALA A 116 ASN A 124 -1 O VAL A 121 N GLN A 92 SHEET 5 C 6 LEU A 141 VAL A 150 -1 O ILE A 146 N LEU A 118 SHEET 6 C 6 ILE A 216 VAL A 218 1 O ILE A 216 N PHE A 147 LINK NE2 HIS A 94 ZN ZN A 301 1555 1555 1.98 LINK NE2 HIS A 96 ZN ZN A 301 1555 1555 2.08 LINK ND1 HIS A 119 ZN ZN A 301 1555 1555 2.03 LINK ZN ZN A 301 NAD 3O1 A 302 1555 1555 1.94 CISPEP 1 SER A 29 PRO A 30 0 0.08 CISPEP 2 PRO A 201 PRO A 202 0 11.89 SITE 1 AC1 4 HIS A 94 HIS A 96 HIS A 119 3O1 A 302 SITE 1 AC2 9 HIS A 94 HIS A 96 HIS A 119 LEU A 198 SITE 2 AC2 9 THR A 199 THR A 200 PRO A 202 TRP A 209 SITE 3 AC2 9 ZN A 301 CRYST1 42.435 41.312 71.693 90.00 104.05 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 0.023565 0.000000 0.005897 0.00000 SCALE2 0.000000 0.024206 0.000000 0.00000 SCALE3 0.000000 0.000000 0.014379 0.00000