HEADER HYDROLASE/INHIBITOR 27-JAN-23 8I66 TITLE CRYSTAL STRUCTURE OF MYCOBACTERIUM TUBERCULOSIS URACIL-DNA GLYCOSYLASE TITLE 2 IN COMPLEX WITH ISOOROTIC ACID (2,4-DIHYDROXYPYRIMIDINE-5-CARBOXYLIC TITLE 3 ACID) AND CITRIC ACID, FORM I COMPND MOL_ID: 1; COMPND 2 MOLECULE: URACIL-DNA GLYCOSYLASE; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: UDG; COMPND 5 EC: 3.2.2.27; COMPND 6 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: MYCOBACTERIUM TUBERCULOSIS H37RV; SOURCE 3 ORGANISM_TAXID: 83332; SOURCE 4 GENE: UNG, RV2976C, MTCY349.11; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3); SOURCE 6 EXPRESSION_SYSTEM_TAXID: 469008 KEYWDS DNA REPAIR, BASE EXCISION REPAIR, INHIBITOR-COMPLEX, HYDROLASE, KEYWDS 2 HYDROLASE-INHIBITOR COMPLEX EXPDTA X-RAY DIFFRACTION AUTHOR P.RAJ,A.PAUL,B.GOPAL REVDAT 2 08-MAY-24 8I66 1 JRNL REVDAT 1 12-JUL-23 8I66 0 JRNL AUTH S.KESHARWANI,P.RAJ,A.PAUL,K.ROY,A.BHANOT,A.MEHTA,A.GOPAL, JRNL AUTH 2 U.VARSHNEY,B.GOPAL,S.SUNDRIYAL JRNL TITL CRYSTAL STRUCTURES OF NON-URACIL RING FRAGMENTS IN COMPLEX JRNL TITL 2 WITH MYCOBACTERIUM TUBERCULOSIS URACIL DNA GLYCOSYLASE JRNL TITL 3 (MTUNG) AS A STARTING POINT FOR NOVEL INHIBITOR DESIGN: A JRNL TITL 4 CASE STUDY WITH THE BARBITURIC ACID FRAGMENT. JRNL REF EUR.J.MED.CHEM. V. 258 15604 2023 JRNL REFN ISSN 0223-5234 JRNL PMID 37399710 JRNL DOI 10.1016/J.EJMECH.2023.115604 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH S.M.ARIF,K.GEETHANANDAN,P.MISHRA,A.SUROLIA,U.VARSHNEY, REMARK 1 AUTH 2 M.VIJAYAN REMARK 1 TITL STRUCTURAL PLASTICITY IN MYCOBACTERIUM TUBERCULOSIS REMARK 1 TITL 2 URACIL-DNA GLYCOSYLASE (MTUNG) AND ITS FUNCTIONAL REMARK 1 TITL 3 IMPLICATIONS. REMARK 1 REF ACTA CRYSTALLOGR D BIOL V. 71 1514 2015 REMARK 1 REF 2 CRYSTALLOGR REMARK 1 REFN ESSN 1399-0047 REMARK 1 PMID 26143923 REMARK 1 DOI 10.1107/S1399004715009311 REMARK 2 REMARK 2 RESOLUTION. 2.60 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC 5.8.0238 REMARK 3 AUTHORS : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER, REMARK 3 : NICHOLLS,WINN,LONG,VAGIN REMARK 3 REMARK 3 REFINEMENT TARGET : MAXIMUM LIKELIHOOD REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.60 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 36.22 REMARK 3 DATA CUTOFF (SIGMA(F)) : NULL REMARK 3 COMPLETENESS FOR RANGE (%) : 97.3 REMARK 3 NUMBER OF REFLECTIONS : 5956 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) : 0.181 REMARK 3 R VALUE (WORKING SET) : 0.178 REMARK 3 FREE R VALUE : 0.234 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.200 REMARK 3 FREE R VALUE TEST SET COUNT : 324 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) : 2.60 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.67 REMARK 3 REFLECTION IN BIN (WORKING SET) : 428 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 94.18 REMARK 3 BIN R VALUE (WORKING SET) : 0.2630 REMARK 3 BIN FREE R VALUE SET COUNT : 25 REMARK 3 BIN FREE R VALUE : 0.4110 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1728 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 24 REMARK 3 SOLVENT ATOMS : 36 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 33.87 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 0.22000 REMARK 3 B22 (A**2) : -0.58000 REMARK 3 B33 (A**2) : -0.48000 REMARK 3 B12 (A**2) : 0.00000 REMARK 3 B13 (A**2) : 1.22000 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): 0.343 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.304 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 14.677 REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : 0.946 REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : 0.903 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES COUNT RMS WEIGHT REMARK 3 BOND LENGTHS REFINED ATOMS (A): 1802 ; 0.007 ; 0.013 REMARK 3 BOND LENGTHS OTHERS (A): 1666 ; 0.001 ; 0.017 REMARK 3 BOND ANGLES REFINED ATOMS (DEGREES): 2468 ; 1.496 ; 1.642 REMARK 3 BOND ANGLES OTHERS (DEGREES): 3839 ; 1.174 ; 1.565 REMARK 3 TORSION ANGLES, PERIOD 1 (DEGREES): 227 ; 7.048 ; 5.000 REMARK 3 TORSION ANGLES, PERIOD 2 (DEGREES): 92 ;33.535 ;19.239 REMARK 3 TORSION ANGLES, PERIOD 3 (DEGREES): 251 ;17.382 ;15.000 REMARK 3 TORSION ANGLES, PERIOD 4 (DEGREES): 19 ;23.643 ;15.000 REMARK 3 CHIRAL-CENTER RESTRAINTS (A**3): 224 ; 0.055 ; 0.200 REMARK 3 GENERAL PLANES REFINED ATOMS (A): 2062 ; 0.006 ; 0.020 REMARK 3 GENERAL PLANES OTHERS (A): 407 ; 0.001 ; 0.020 REMARK 3 NON-BONDED CONTACTS REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED CONTACTS OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED TORSION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED TORSION OTHERS (A): NULL ; NULL ; NULL REMARK 3 H-BOND (X...Y) REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 H-BOND (X...Y) OTHERS (A): NULL ; NULL ; NULL REMARK 3 POTENTIAL METAL-ION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 POTENTIAL METAL-ION OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY VDW REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY VDW OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY H-BOND REFINED ATOMS (A): NULL ; NULL ; NULL 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): 911 ; 2.340 ; 3.600 REMARK 3 MAIN-CHAIN BOND OTHER ATOMS (A**2): 910 ; 2.340 ; 3.600 REMARK 3 MAIN-CHAIN ANGLE REFINED ATOMS (A**2): 1137 ; 3.824 ; 5.391 REMARK 3 MAIN-CHAIN ANGLE OTHER ATOMS (A**2): 1138 ; 3.822 ; 5.391 REMARK 3 SIDE-CHAIN BOND REFINED ATOMS (A**2): 891 ; 2.312 ; 3.693 REMARK 3 SIDE-CHAIN BOND OTHER ATOMS (A**2): 888 ; 2.280 ; 3.685 REMARK 3 SIDE-CHAIN ANGLE REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE OTHER ATOMS (A**2): 1332 ; 3.679 ; 5.462 REMARK 3 LONG RANGE B REFINED ATOMS (A**2): 2023 ; 5.924 ;41.687 REMARK 3 LONG RANGE B OTHER ATOMS (A**2): 2024 ; 5.923 ;41.709 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 : 1.20 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 RIDING REMARK 3 POSITIONS REMARK 4 REMARK 4 8I66 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 31-JAN-23. REMARK 100 THE DEPOSITION ID IS D_1300034965. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 04-NOV-20 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 8.5 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 ULTRAX 18 REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.54179 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : RIGAKU RAXIS IV REMARK 200 INTENSITY-INTEGRATION SOFTWARE : IMOSFLM REMARK 200 DATA SCALING SOFTWARE : SCALA REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 6291 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.600 REMARK 200 RESOLUTION RANGE LOW (A) : 42.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 97.6 REMARK 200 DATA REDUNDANCY : 3.700 REMARK 200 R MERGE (I) : 0.17600 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 6.1000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.60 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.74 REMARK 200 COMPLETENESS FOR SHELL (%) : NULL REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : 0.65300 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: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: PHASER REMARK 200 STARTING MODEL: 4WS4 REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 39.58 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.04 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 0.1 M BIS-TRIS PH 5.5, 0.5 M SODIUM REMARK 280 CITRATE, 25% PEG (W/V) 3350, PH 8.5, MICROBATCH, TEMPERATURE 293K 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 31.98500 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 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 -10 REMARK 465 HIS A -9 REMARK 465 HIS A -8 REMARK 465 HIS A -7 REMARK 465 HIS A -6 REMARK 465 HIS A -5 REMARK 465 HIS A -4 REMARK 465 GLY A -3 REMARK 465 MET A -2 REMARK 465 ALA A -1 REMARK 470 REMARK 470 MISSING ATOM REMARK 470 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (M=MODEL NUMBER; REMARK 470 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; REMARK 470 I=INSERTION CODE): REMARK 470 M RES CSSEQI ATOMS REMARK 470 THR A 2 OG1 CG2 REMARK 470 ARG A 199 CG CD NE CZ NH1 NH2 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 HIS A 75 -69.99 -107.62 REMARK 500 PHE A 81 -20.72 83.65 REMARK 500 TYR A 107 155.72 -43.90 REMARK 500 PRO A 110 152.00 -49.65 REMARK 500 ALA A 138 9.34 81.85 REMARK 500 CYS A 184 82.90 -152.70 REMARK 500 PRO A 190 161.85 -49.18 REMARK 500 REMARK 500 REMARK: NULL DBREF 8I66 A 1 227 UNP P9WFQ9 UNG_MYCTU 1 227 SEQADV 8I66 MET A -10 UNP P9WFQ9 EXPRESSION TAG SEQADV 8I66 HIS A -9 UNP P9WFQ9 EXPRESSION TAG SEQADV 8I66 HIS A -8 UNP P9WFQ9 EXPRESSION TAG SEQADV 8I66 HIS A -7 UNP P9WFQ9 EXPRESSION TAG SEQADV 8I66 HIS A -6 UNP P9WFQ9 EXPRESSION TAG SEQADV 8I66 HIS A -5 UNP P9WFQ9 EXPRESSION TAG SEQADV 8I66 HIS A -4 UNP P9WFQ9 EXPRESSION TAG SEQADV 8I66 GLY A -3 UNP P9WFQ9 EXPRESSION TAG SEQADV 8I66 MET A -2 UNP P9WFQ9 EXPRESSION TAG SEQADV 8I66 ALA A -1 UNP P9WFQ9 EXPRESSION TAG SEQADV 8I66 SER A 0 UNP P9WFQ9 EXPRESSION TAG SEQRES 1 A 238 MET HIS HIS HIS HIS HIS HIS GLY MET ALA SER MET THR SEQRES 2 A 238 ALA ARG PRO LEU SER GLU LEU VAL GLU ARG GLY TRP ALA SEQRES 3 A 238 ALA ALA LEU GLU PRO VAL ALA ASP GLN VAL ALA HIS MET SEQRES 4 A 238 GLY GLN PHE LEU ARG ALA GLU ILE ALA ALA GLY ARG ARG SEQRES 5 A 238 TYR LEU PRO ALA GLY SER ASN VAL LEU ARG ALA PHE THR SEQRES 6 A 238 PHE PRO PHE ASP ASN VAL ARG VAL LEU ILE VAL GLY GLN SEQRES 7 A 238 ASP PRO TYR PRO THR PRO GLY HIS ALA VAL GLY LEU SER SEQRES 8 A 238 PHE SER VAL ALA PRO ASP VAL ARG PRO TRP PRO ARG SER SEQRES 9 A 238 LEU ALA ASN ILE PHE ASP GLU TYR THR ALA ASP LEU GLY SEQRES 10 A 238 TYR PRO LEU PRO SER ASN GLY ASP LEU THR PRO TRP ALA SEQRES 11 A 238 GLN ARG GLY VAL LEU LEU LEU ASN ARG VAL LEU THR VAL SEQRES 12 A 238 ARG PRO SER ASN PRO ALA SER HIS ARG GLY LYS GLY TRP SEQRES 13 A 238 GLU ALA VAL THR GLU CYS ALA ILE ARG ALA LEU ALA ALA SEQRES 14 A 238 ARG ALA ALA PRO LEU VAL ALA ILE LEU TRP GLY ARG ASP SEQRES 15 A 238 ALA SER THR LEU LYS PRO MET LEU ALA ALA GLY ASN CYS SEQRES 16 A 238 VAL ALA ILE GLU SER PRO HIS PRO SER PRO LEU SER ALA SEQRES 17 A 238 SER ARG GLY PHE PHE GLY SER ARG PRO PHE SER ARG ALA SEQRES 18 A 238 ASN GLU LEU LEU VAL GLY MET GLY ALA GLU PRO ILE ASP SEQRES 19 A 238 TRP ARG LEU PRO HET 5CU A 301 11 HET CIT A 302 13 HETNAM 5CU 2,4-DIOXO-1,2,3,4-TETRAHYDROPYRIMIDINE-5-CARBOXYLIC HETNAM 2 5CU ACID HETNAM CIT CITRIC ACID FORMUL 2 5CU C5 H4 N2 O4 FORMUL 3 CIT C6 H8 O7 FORMUL 4 HOH *36(H2 O) HELIX 1 AA1 PRO A 5 VAL A 10 1 6 HELIX 2 AA2 GLU A 11 LEU A 18 1 8 HELIX 3 AA3 VAL A 21 GLY A 39 1 19 HELIX 4 AA4 ALA A 45 VAL A 49 5 5 HELIX 5 AA5 LEU A 50 PHE A 55 5 6 HELIX 6 AA6 PRO A 56 VAL A 60 5 5 HELIX 7 AA7 PRO A 91 GLY A 106 1 16 HELIX 8 AA8 LEU A 115 GLN A 120 1 6 HELIX 9 AA9 GLY A 144 ARG A 159 1 16 HELIX 10 AB1 GLY A 169 THR A 174 1 6 HELIX 11 AB2 LEU A 175 ALA A 180 5 6 HELIX 12 AB3 SER A 193 SER A 198 1 6 HELIX 13 AB4 ARG A 205 MET A 217 1 13 SHEET 1 AA1 4 VAL A 123 ASN A 127 0 SHEET 2 AA1 4 VAL A 62 GLY A 66 1 N ILE A 64 O LEU A 124 SHEET 3 AA1 4 LEU A 163 TRP A 168 1 O ILE A 166 N LEU A 63 SHEET 4 AA1 4 CYS A 184 SER A 189 1 O ILE A 187 N ALA A 165 CISPEP 1 LEU A 43 PRO A 44 0 -6.56 CISPEP 2 ARG A 88 PRO A 89 0 -7.81 CRYST1 39.120 63.970 45.390 90.00 112.29 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 0.025562 0.000000 0.010479 0.00000 SCALE2 0.000000 0.015632 0.000000 0.00000 SCALE3 0.000000 0.000000 0.023811 0.00000