HEADER HYDROLASE 11-FEB-95 1CTT TITLE TRANSITION-STATE SELECTIVITY FOR A SINGLE OH GROUP DURING CATALYSIS BY TITLE 2 CYTIDINE DEAMINASE COMPND MOL_ID: 1; COMPND 2 MOLECULE: CYTIDINE DEAMINASE; COMPND 3 CHAIN: A; COMPND 4 EC: 3.5.4.5; COMPND 5 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI; SOURCE 3 ORGANISM_TAXID: 562 KEYWDS HYDROLASE EXPDTA X-RAY DIFFRACTION AUTHOR S.XIANG,S.A.SHORT,R.WOLFENDEN,C.W.CARTER REVDAT 7 07-FEB-24 1CTT 1 REMARK LINK REVDAT 6 14-AUG-19 1CTT 1 REMARK REVDAT 5 17-JUL-19 1CTT 1 REMARK REVDAT 4 13-JUL-11 1CTT 1 VERSN REVDAT 3 24-FEB-09 1CTT 1 VERSN REVDAT 2 01-APR-03 1CTT 1 JRNL REVDAT 1 08-MAY-95 1CTT 0 JRNL AUTH S.XIANG,S.A.SHORT,R.WOLFENDEN,C.W.CARTER JR. JRNL TITL TRANSITION-STATE SELECTIVITY FOR A SINGLE HYDROXYL GROUP JRNL TITL 2 DURING CATALYSIS BY CYTIDINE DEAMINASE. JRNL REF BIOCHEMISTRY V. 34 4516 1995 JRNL REFN ISSN 0006-2960 JRNL PMID 7718553 JRNL DOI 10.1021/BI00014A003 REMARK 2 REMARK 2 RESOLUTION. 2.20 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : TNT 5A REMARK 3 AUTHORS : TRONRUD,TEN EYCK,MATTHEWS REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.20 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 20.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 2.000 REMARK 3 COMPLETENESS FOR RANGE (%) : NULL REMARK 3 NUMBER OF REFLECTIONS : 30265 REMARK 3 REMARK 3 USING DATA ABOVE SIGMA CUTOFF. REMARK 3 CROSS-VALIDATION METHOD : NULL REMARK 3 FREE R VALUE TEST SET SELECTION : NULL REMARK 3 R VALUE (WORKING + TEST SET) : 0.190 REMARK 3 R VALUE (WORKING SET) : 0.190 REMARK 3 FREE R VALUE : NULL REMARK 3 FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 FREE R VALUE TEST SET COUNT : NULL REMARK 3 REMARK 3 USING ALL DATA, NO SIGMA CUTOFF. REMARK 3 R VALUE (WORKING + TEST SET, NO CUTOFF) : NULL REMARK 3 R VALUE (WORKING SET, NO CUTOFF) : NULL REMARK 3 FREE R VALUE (NO CUTOFF) : NULL REMARK 3 FREE R VALUE TEST SET SIZE (%, NO CUTOFF) : NULL REMARK 3 FREE R VALUE TEST SET COUNT (NO CUTOFF) : NULL REMARK 3 TOTAL NUMBER OF REFLECTIONS (NO CUTOFF) : NULL REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 2220 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 17 REMARK 3 SOLVENT ATOMS : 49 REMARK 3 REMARK 3 WILSON B VALUE (FROM FCALC, A**2) : NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. RMS WEIGHT COUNT REMARK 3 BOND LENGTHS (A) : NULL ; NULL ; NULL REMARK 3 BOND ANGLES (DEGREES) : NULL ; NULL ; NULL REMARK 3 TORSION ANGLES (DEGREES) : NULL ; NULL ; NULL REMARK 3 PSEUDOROTATION ANGLES (DEGREES) : NULL ; NULL ; NULL REMARK 3 TRIGONAL CARBON PLANES (A) : NULL ; NULL ; NULL REMARK 3 GENERAL PLANES (A) : NULL ; NULL ; NULL REMARK 3 ISOTROPIC THERMAL FACTORS (A**2) : NULL ; NULL ; NULL REMARK 3 NON-BONDED CONTACTS (A) : NULL ; NULL ; NULL REMARK 3 REMARK 3 INCORRECT CHIRAL-CENTERS (COUNT) : NULL REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED : NULL REMARK 3 KSOL : NULL REMARK 3 BSOL : NULL REMARK 3 REMARK 3 RESTRAINT LIBRARIES. REMARK 3 STEREOCHEMISTRY : NULL REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1CTT 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_1000172529. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : NULL REMARK 200 TEMPERATURE (KELVIN) : NULL REMARK 200 PH : NULL REMARK 200 NUMBER OF CRYSTALS USED : NULL REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : N REMARK 200 RADIATION SOURCE : NULL REMARK 200 BEAMLINE : NULL REMARK 200 X-RAY GENERATOR MODEL : NULL 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 : RIGAKU RAXIS REMARK 200 INTENSITY-INTEGRATION SOFTWARE : R-AXIS REMARK 200 DATA SCALING SOFTWARE : NULL REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 34000 REMARK 200 RESOLUTION RANGE HIGH (A) : NULL REMARK 200 RESOLUTION RANGE LOW (A) : NULL REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 1.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 88.0 REMARK 200 DATA REDUNDANCY : 3.500 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) : NULL REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : NULL REMARK 200 COMPLETENESS FOR SHELL (%) : NULL 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: NULL REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: NULL REMARK 200 SOFTWARE USED: X-PLOR 3.0 REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 76.29 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 5.19 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: NULL REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 31 2 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -Y,X-Y,Z+1/3 REMARK 290 3555 -X+Y,-X,Z+2/3 REMARK 290 4555 Y,X,-Z REMARK 290 5555 X-Y,-Y,-Z+2/3 REMARK 290 6555 -X,-X+Y,-Z+1/3 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 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 2 0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 26.13333 REMARK 290 SMTRY1 3 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 3 -0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 52.26667 REMARK 290 SMTRY1 4 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 4 0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 4 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 5 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 5 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 5 0.000000 0.000000 -1.000000 52.26667 REMARK 290 SMTRY1 6 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 6 -0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 6 0.000000 0.000000 -1.000000 26.13333 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 300 REMARK: SYMMETRY REMARK 300 THE CRYSTALLOGRAPHIC SYMMETRY TRANSFORMATIONS PRESENTED REMARK 300 BELOW GENERATE THE SUBUNITS OF THE POLYMERIC MOLECULE. REMARK 300 REMARK 300 APPLIED TO RESIDUES: 1 .. 700 REMARK 300 REMARK 300 SYMMETRY1 1 0.000000 1.000000 0.000000 0.00000 REMARK 300 SYMMETRY2 1 1.000000 0.000000 0.000000 0.00000 REMARK 300 SYMMETRY3 1 0.000000 0.000000 -1.000000 0.00000 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: DIMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC REMARK 350 SOFTWARE USED: PISA,PQS REMARK 350 TOTAL BURIED SURFACE AREA: 5270 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 19330 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -98.0 KCAL/MOL 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 350 BIOMT1 2 -0.500000 0.866025 0.000000 0.00000 REMARK 350 BIOMT2 2 0.866025 0.500000 0.000000 0.00000 REMARK 350 BIOMT3 2 0.000000 0.000000 -1.000000 0.00000 REMARK 480 REMARK 480 ZERO OCCUPANCY ATOM REMARK 480 THE FOLLOWING RESIDUES HAVE ATOMS MODELED WITH ZERO REMARK 480 OCCUPANCY. THE LOCATION AND PROPERTIES OF THESE ATOMS REMARK 480 MAY NOT BE RELIABLE. (M=MODEL NUMBER; RES=RESIDUE NAME; REMARK 480 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE): REMARK 480 M RES C SSEQI ATOMS REMARK 480 ALA A 294 OXT REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: COVALENT BOND LENGTHS 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,2(A3,1X,A1,I4,A1,1X,A4,3X),1X,F6.3) 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 RES CSSEQI ATM2 DEVIATION REMARK 500 GLU A 21 CD GLU A 21 OE2 0.077 REMARK 500 GLU A 36 CD GLU A 36 OE2 0.076 REMARK 500 GLU A 49 CD GLU A 49 OE2 0.068 REMARK 500 GLU A 91 CD GLU A 91 OE2 0.073 REMARK 500 GLU A 153 CD GLU A 153 OE2 0.076 REMARK 500 GLU A 179 CD GLU A 179 OE1 0.073 REMARK 500 GLU A 216 CD GLU A 216 OE2 0.066 REMARK 500 GLU A 264 CD GLU A 264 OE2 0.076 REMARK 500 REMARK 500 REMARK: NULL 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 THR A 45 O - C - N ANGL. DEV. = -10.4 DEGREES REMARK 500 GLY A 46 C - N - CA ANGL. DEV. = -23.0 DEGREES REMARK 500 ASP A 48 CB - CG - OD1 ANGL. DEV. = 6.4 DEGREES REMARK 500 ASP A 48 CB - CG - OD2 ANGL. DEV. = -7.1 DEGREES REMARK 500 ASP A 50 CB - CG - OD1 ANGL. DEV. = 7.3 DEGREES REMARK 500 ASP A 50 CB - CG - OD2 ANGL. DEV. = -5.8 DEGREES REMARK 500 CYS A 132 CA - CB - SG ANGL. DEV. = -13.5 DEGREES REMARK 500 ASP A 144 CB - CG - OD1 ANGL. DEV. = -6.8 DEGREES REMARK 500 ASP A 144 CB - CG - OD2 ANGL. DEV. = 6.4 DEGREES REMARK 500 ASP A 159 CB - CG - OD1 ANGL. DEV. = 6.4 DEGREES REMARK 500 ASP A 159 CB - CG - OD2 ANGL. DEV. = -5.8 DEGREES REMARK 500 ASP A 181 CB - CG - OD1 ANGL. DEV. = 6.9 DEGREES REMARK 500 ASP A 181 CB - CG - OD2 ANGL. DEV. = -9.4 DEGREES REMARK 500 ASP A 253 CB - CG - OD1 ANGL. DEV. = -5.5 DEGREES REMARK 500 ASP A 253 CB - CG - OD2 ANGL. DEV. = 6.3 DEGREES REMARK 500 ASP A 256 CB - CG - OD1 ANGL. DEV. = -6.2 DEGREES REMARK 500 ASP A 256 CB - CG - OD2 ANGL. DEV. = 9.1 DEGREES REMARK 500 ARG A 259 NE - CZ - NH2 ANGL. DEV. = 4.5 DEGREES REMARK 500 ARG A 290 NE - CZ - NH1 ANGL. DEV. = -3.9 DEGREES REMARK 500 ARG A 290 NE - CZ - NH2 ANGL. DEV. = 4.2 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 21 -52.08 -27.53 REMARK 500 PRO A 30 23.94 -78.82 REMARK 500 ALA A 95 -144.31 -109.94 REMARK 500 MET A 177 -6.72 91.15 REMARK 500 ASP A 189 -171.90 -66.25 REMARK 500 MET A 204 52.36 -152.37 REMARK 500 PHE A 233 -73.97 65.79 REMARK 500 PRO A 235 1.89 -69.57 REMARK 500 GLN A 258 -64.97 -91.96 REMARK 500 ASP A 267 31.05 -98.32 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 296 ZN REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 102 ND1 REMARK 620 2 CYS A 129 SG 105.9 REMARK 620 3 CYS A 132 SG 112.5 113.5 REMARK 620 4 HOH A 700 O 101.7 99.3 122.0 REMARK 620 N 1 2 3 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: A1 REMARK 800 EVIDENCE_CODE: AUTHOR REMARK 800 SITE_DESCRIPTION: CATALYTIC SITE IN WHICH A ZINC IS COORDINATED IN REMARK 800 A TETRAHEDRAL LIGAND FIELD REMARK 800 REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ZN A 296 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE DHZ A 295 DBREF 1CTT A 1 294 UNP P0ABF6 CDD_ECOLI 1 294 SEQRES 1 A 294 MET HIS PRO ARG PHE GLN THR ALA PHE ALA GLN LEU ALA SEQRES 2 A 294 ASP ASN LEU GLN SER ALA LEU GLU PRO ILE LEU ALA ASP SEQRES 3 A 294 LYS TYR PHE PRO ALA LEU LEU THR GLY GLU GLN VAL SER SEQRES 4 A 294 SER LEU LYS SER ALA THR GLY LEU ASP GLU ASP ALA LEU SEQRES 5 A 294 ALA PHE ALA LEU LEU PRO LEU ALA ALA ALA CYS ALA ARG SEQRES 6 A 294 THR PRO LEU SER ASN PHE ASN VAL GLY ALA ILE ALA ARG SEQRES 7 A 294 GLY VAL SER GLY THR TRP TYR PHE GLY ALA ASN MET GLU SEQRES 8 A 294 PHE ILE GLY ALA THR MET GLN GLN THR VAL HIS ALA GLU SEQRES 9 A 294 GLN SER ALA ILE SER HIS ALA TRP LEU SER GLY GLU LYS SEQRES 10 A 294 ALA LEU ALA ALA ILE THR VAL ASN TYR THR PRO CYS GLY SEQRES 11 A 294 HIS CYS ARG GLN PHE MET ASN GLU LEU ASN SER GLY LEU SEQRES 12 A 294 ASP LEU ARG ILE HIS LEU PRO GLY ARG GLU ALA HIS ALA SEQRES 13 A 294 LEU ARG ASP TYR LEU PRO ASP ALA PHE GLY PRO LYS ASP SEQRES 14 A 294 LEU GLU ILE LYS THR LEU LEU MET ASP GLU GLN ASP HIS SEQRES 15 A 294 GLY TYR ALA LEU THR GLY ASP ALA LEU SER GLN ALA ALA SEQRES 16 A 294 ILE ALA ALA ALA ASN ARG SER HIS MET PRO TYR SER LYS SEQRES 17 A 294 SER PRO SER GLY VAL ALA LEU GLU CYS LYS ASP GLY ARG SEQRES 18 A 294 ILE PHE SER GLY SER TYR ALA GLU ASN ALA ALA PHE ASN SEQRES 19 A 294 PRO THR LEU PRO PRO LEU GLN GLY ALA LEU ILE LEU LEU SEQRES 20 A 294 ASN LEU LYS GLY TYR ASP TYR PRO ASP ILE GLN ARG ALA SEQRES 21 A 294 VAL LEU ALA GLU LYS ALA ASP ALA PRO LEU ILE GLN TRP SEQRES 22 A 294 ASP ALA THR SER ALA THR LEU LYS ALA LEU GLY CYS HIS SEQRES 23 A 294 SER ILE ASP ARG VAL LEU LEU ALA HET ZN A 296 1 HET DHZ A 295 16 HETNAM ZN ZINC ION HETNAM DHZ 3,4-DIHYDRO-1H-PYRIMIDIN-2-ONE NUCLEOSIDE FORMUL 2 ZN ZN 2+ FORMUL 3 DHZ C9 H14 N2 O5 FORMUL 4 HOH *49(H2 O) HELIX 1 1 PRO A 3 GLN A 11 5 9 HELIX 2 2 ASP A 14 GLU A 21 1 8 HELIX 3 3 GLY A 35 ALA A 44 1 10 HELIX 4 4 GLU A 49 CYS A 63 1 15 HELIX 5 5 MET A 97 GLN A 99 5 3 HELIX 6 6 ALA A 103 SER A 114 1 12 HELIX 7 7 GLY A 130 GLU A 138 1 9 HELIX 8 8 GLY A 142 ASP A 144 5 3 HELIX 9 9 LEU A 157 TYR A 160 1 4 HELIX 10 10 PRO A 167 LEU A 170 5 4 HELIX 11 11 ALA A 190 ARG A 201 1 12 HELIX 12 12 PRO A 239 LEU A 249 1 11 HELIX 13 13 TYR A 254 ASP A 256 5 3 HELIX 14 14 TRP A 273 LEU A 283 1 11 SHEET 1 A 4 TRP A 84 ALA A 88 0 SHEET 2 A 4 GLY A 74 GLY A 79 -1 N ALA A 77 O TYR A 85 SHEET 3 A 4 LEU A 119 VAL A 124 -1 N THR A 123 O ILE A 76 SHEET 4 A 4 ARG A 146 LEU A 149 1 N ARG A 146 O ILE A 122 SHEET 1 B 4 ILE A 222 SER A 226 0 SHEET 2 B 4 SER A 211 CYS A 217 -1 N LEU A 215 O PHE A 223 SHEET 3 B 4 ILE A 257 GLU A 264 -1 N ALA A 263 O GLY A 212 SHEET 4 B 4 ILE A 288 LEU A 292 1 N ASP A 289 O ALA A 260 LINK ND1 HIS A 102 ZN ZN A 296 1555 1555 2.02 LINK SG CYS A 129 ZN ZN A 296 1555 1555 2.42 LINK SG CYS A 132 ZN ZN A 296 1555 1555 2.11 LINK ZN ZN A 296 O HOH A 700 1555 1555 1.84 SITE 1 A1 4 HIS A 102 GLU A 104 CYS A 129 CYS A 132 SITE 1 AC1 5 HIS A 102 GLU A 104 CYS A 129 CYS A 132 SITE 2 AC1 5 HOH A 700 SITE 1 AC2 12 PHE A 71 VAL A 73 ASN A 89 GLU A 91 SITE 2 AC2 12 THR A 100 VAL A 101 HIS A 102 ALA A 103 SITE 3 AC2 12 GLU A 104 ALA A 231 PHE A 233 HOH A 700 CRYST1 120.300 120.300 78.400 90.00 90.00 120.00 P 31 2 1 6 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 0.008313 0.004799 0.000000 0.00000 SCALE2 0.000000 0.009599 0.000000 0.00000 SCALE3 0.000000 0.000000 0.012755 0.00000