HEADER HYDROLASE 09-DEC-24 9KYG TITLE CRYSTAL STRUCTURE OF E.COLI AC4C AMIDOHYDROLASE YQFB IN COMPLEX WITH TITLE 2 CYTIDINE COMPND MOL_ID: 1; COMPND 2 MOLECULE: N(4)-ACETYLCYTIDINE AMIDOHYDROLASE; COMPND 3 CHAIN: A, B; COMPND 4 SYNONYM: AC4C AMIDOHYDROLASE; COMPND 5 EC: 3.5.1.135; COMPND 6 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI BL21(DE3); SOURCE 3 ORGANISM_TAXID: 469008; SOURCE 4 GENE: ECBD_0837; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3); SOURCE 6 EXPRESSION_SYSTEM_TAXID: 469008 KEYWDS N4-ACETYLCYTIDINE, RNA MODIFICATION, AMIDOHYDROLASE, CYTIDINE, KEYWDS 2 COMPLEX, HYDROLASE EXPDTA X-RAY DIFFRACTION AUTHOR W.T.GUO,C.Y.MENG,Y.WEN,B.X.WU REVDAT 3 24-DEC-25 9KYG 1 JRNL REVDAT 2 24-SEP-25 9KYG 1 JRNL REVDAT 1 20-AUG-25 9KYG 0 JRNL AUTH C.MENG,X.SHI,W.GUO,X.JIAN,J.ZHAO,Y.WEN,R.WANG,Y.LI,S.XU, JRNL AUTH 2 H.CHEN,J.ZHANG,M.CHEN,H.CHEN,B.WU JRNL TITL STRUCTURAL ANALYSIS OF ASCH DOMAIN-CONTAINING PROTEINS AND JRNL TITL 2 THEIR IMPLICATIONS FOR NUCLEOTIDE PROCESSING. JRNL REF STRUCTURE V. 33 2095 2025 JRNL REFN ISSN 0969-2126 JRNL PMID 40939588 JRNL DOI 10.1016/J.STR.2025.08.015 REMARK 2 REMARK 2 RESOLUTION. 1.47 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PHENIX 1.20.1_4487 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 : GEOSTD + MONOMER LIBRARY + CDL V1.2 REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.47 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 29.35 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 1.350 REMARK 3 COMPLETENESS FOR RANGE (%) : 97.4 REMARK 3 NUMBER OF REFLECTIONS : 33670 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.189 REMARK 3 R VALUE (WORKING SET) : 0.187 REMARK 3 FREE R VALUE : 0.217 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.160 REMARK 3 FREE R VALUE TEST SET COUNT : 1738 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 29.3500 - 3.3600 0.99 2827 143 0.1682 0.1896 REMARK 3 2 3.3600 - 2.6700 1.00 2778 137 0.1746 0.2190 REMARK 3 3 2.6700 - 2.3300 1.00 2710 161 0.1840 0.1884 REMARK 3 4 2.3300 - 2.1200 1.00 2742 154 0.1757 0.2323 REMARK 3 5 2.1200 - 1.9700 1.00 2710 155 0.1901 0.2265 REMARK 3 6 1.9700 - 1.8500 1.00 2710 159 0.1927 0.2164 REMARK 3 7 1.8500 - 1.7600 1.00 2699 137 0.2070 0.2217 REMARK 3 8 1.7600 - 1.6800 1.00 2705 148 0.2238 0.2363 REMARK 3 9 1.6800 - 1.6200 1.00 2708 141 0.2278 0.2922 REMARK 3 10 1.6200 - 1.5600 1.00 2705 161 0.2321 0.2636 REMARK 3 11 1.5600 - 1.5100 0.93 2486 134 0.2411 0.2778 REMARK 3 12 1.5100 - 1.4700 0.78 2152 108 0.2710 0.2880 REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : FLAT BULK SOLVENT MODEL REMARK 3 SOLVENT RADIUS : 1.10 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) : 0.156 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 22.335 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 16.37 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 20.93 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 1715 REMARK 3 ANGLE : 0.926 2327 REMARK 3 CHIRALITY : 0.090 275 REMARK 3 PLANARITY : 0.007 296 REMARK 3 DIHEDRAL : 6.036 221 REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : NULL REMARK 3 REMARK 3 NCS DETAILS REMARK 3 NUMBER OF NCS GROUPS : 1 REMARK 3 NCS GROUP : ens_1 REMARK 3 NCS OPERATOR : 1 REMARK 3 REFERENCE SELECTION: NULL REMARK 3 SELECTION : (chain "A" and (resid 3 through 27 or REMARK 3 (resid 28 and (name N or name CA or name REMARK 3 C or name O or name CB )) or resid 29 REMARK 3 through 78 or resid 80 through 103 or REMARK 3 (resid 201 and (name C1" or name C2 or REMARK 3 name C2" or name C3" or name C4 or name REMARK 3 C4" or name C5 or name C5" or name C6 or REMARK 3 name N1 or name N3 or name N4 or name O2 REMARK 3 or name O2" or name O3" or name O4" or REMARK 3 name O5")))) REMARK 3 ATOM PAIRS NUMBER : NULL REMARK 3 RMSD : NULL REMARK 3 NCS OPERATOR : 2 REMARK 3 REFERENCE SELECTION: NULL REMARK 3 SELECTION : (chain "B" and (resid 3 through 78 or REMARK 3 resid 80 through 103 or resid 201)) REMARK 3 ATOM PAIRS NUMBER : NULL REMARK 3 RMSD : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 9KYG COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBC ON 12-DEC-24. REMARK 100 THE DEPOSITION ID IS D_1300054522. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 10-JUL-23 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : NULL REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : SSRF REMARK 200 BEAMLINE : BL18U1 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.97853 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : PIXEL REMARK 200 DETECTOR MANUFACTURER : DECTRIS PILATUS3 6M REMARK 200 INTENSITY-INTEGRATION SOFTWARE : AUTOPROC REMARK 200 DATA SCALING SOFTWARE : SCALA REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 33689 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.470 REMARK 200 RESOLUTION RANGE LOW (A) : 30.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 97.5 REMARK 200 DATA REDUNDANCY : 4.900 REMARK 200 R MERGE (I) : 0.07800 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 10.4000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.47 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.55 REMARK 200 COMPLETENESS FOR SHELL (%) : 84.0 REMARK 200 DATA REDUNDANCY IN SHELL : 3.70 REMARK 200 R MERGE FOR SHELL (I) : 0.54000 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 2.100 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: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 42.09 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.12 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 0.2M MAGNESIUM CHLORIDE, 0.1M TRIS-HCL REMARK 280 PH 8.5, 30% PEG 4,000, VAPOR DIFFUSION, SITTING DROP, REMARK 280 TEMPERATURE 293K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: C 1 2 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,Y,-Z REMARK 290 3555 X+1/2,Y+1/2,Z REMARK 290 4555 -X+1/2,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 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 3 1.000000 0.000000 0.000000 54.21950 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 15.24650 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 4 -1.000000 0.000000 0.000000 54.21950 REMARK 290 SMTRY2 4 0.000000 1.000000 0.000000 15.24650 REMARK 290 SMTRY3 4 0.000000 0.000000 -1.000000 0.00000 REMARK 290 REMARK 290 REMARK: NULL REMARK 300 REMARK 300 BIOMOLECULE: 1, 2 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 TOTAL BURIED SURFACE AREA: 500 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 5640 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: 3.0 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 REMARK 350 BIOMOLECULE: 2 REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: MONOMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: MONOMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 520 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 5460 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: 1.0 KCAL/MOL REMARK 350 APPLY THE FOLLOWING TO CHAINS: B 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 375 REMARK 375 SPECIAL POSITION REMARK 375 THE FOLLOWING ATOMS ARE FOUND TO BE WITHIN 0.15 ANGSTROMS REMARK 375 OF A SYMMETRY RELATED ATOM AND ARE ASSUMED TO BE ON SPECIAL REMARK 375 POSITIONS. REMARK 375 REMARK 375 ATOM RES CSSEQI REMARK 375 HOH A 447 LIES ON A SPECIAL POSITION. REMARK 375 HOH B 301 LIES ON A SPECIAL POSITION. 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 MET B 1 REMARK 465 GLN B 2 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 GLU B 28 CG CD OE1 OE2 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 O HOH B 455 O HOH B 459 1.83 REMARK 500 O HOH A 414 O HOH A 444 1.85 REMARK 500 O HOH A 394 O HOH A 450 1.88 REMARK 500 O HOH B 427 O HOH B 461 1.89 REMARK 500 O HOH A 346 O HOH A 392 1.91 REMARK 500 O HOH A 408 O HOH A 410 1.92 REMARK 500 O HOH B 398 O HOH B 461 1.94 REMARK 500 O HOH B 464 O HOH B 481 1.94 REMARK 500 O HOH A 322 O HOH A 424 1.98 REMARK 500 O HOH B 363 O HOH B 451 2.00 REMARK 500 OE1 GLN A 94 O HOH A 301 2.01 REMARK 500 O HOH B 447 O HOH B 458 2.02 REMARK 500 O HOH B 451 O HOH B 477 2.03 REMARK 500 O HOH A 303 O HOH A 424 2.04 REMARK 500 O HOH B 318 O HOH B 461 2.05 REMARK 500 O HOH A 351 O HOH A 379 2.05 REMARK 500 O HOH B 310 O HOH B 379 2.06 REMARK 500 O HOH A 310 O HOH A 423 2.08 REMARK 500 O HOH A 301 O HOH A 359 2.12 REMARK 500 N4 CTN B 201 O HOH B 302 2.13 REMARK 500 OD2 ASP B 27 O HOH B 303 2.14 REMARK 500 OG1 THR B 79 O HOH B 304 2.15 REMARK 500 O HOH B 457 O HOH B 480 2.17 REMARK 500 REMARK 500 REMARK: NULL 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 B 440 O HOH B 440 2555 1.80 REMARK 500 O HOH B 438 O HOH B 439 4555 1.90 REMARK 500 O HOH B 348 O HOH B 451 1565 1.95 REMARK 500 O HOH A 348 O HOH A 424 1565 2.07 REMARK 500 O HOH B 337 O HOH B 451 1565 2.09 REMARK 500 O HOH A 399 O HOH A 421 2556 2.14 REMARK 500 O HOH A 408 O HOH B 431 1556 2.15 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 MG A 202 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASP A 87 OD2 REMARK 620 2 HOH A 354 O 92.3 REMARK 620 3 GLU B 45 O 91.3 92.9 REMARK 620 4 HOH B 364 O 85.8 91.0 175.3 REMARK 620 5 HOH B 399 O 91.3 176.2 86.0 90.3 REMARK 620 6 HOH B 415 O 178.1 88.6 90.4 92.5 87.8 REMARK 620 N 1 2 3 4 5 DBREF1 9KYG A 1 103 UNP A0A140N8S3_ECOBD DBREF2 9KYG A A0A140N8S3 1 103 DBREF1 9KYG B 1 103 UNP A0A140N8S3_ECOBD DBREF2 9KYG B A0A140N8S3 1 103 SEQRES 1 A 103 MET GLN PRO ASN ASP ILE THR PHE PHE GLN ARG PHE GLN SEQRES 2 A 103 ASP ASP ILE LEU ALA GLY ARG LYS THR ILE THR ILE ARG SEQRES 3 A 103 ASP GLU SER GLU SER HIS PHE LYS THR GLY ASP VAL LEU SEQRES 4 A 103 ARG VAL GLY ARG PHE GLU ASP ASP GLY TYR PHE CYS THR SEQRES 5 A 103 ILE GLU VAL THR ALA THR SER THR VAL THR LEU ASP THR SEQRES 6 A 103 LEU THR GLU LYS HIS ALA GLU GLN GLU ASN MET THR LEU SEQRES 7 A 103 THR GLU LEU ILE LYS VAL ILE ALA ASP ILE TYR PRO GLY SEQRES 8 A 103 GLN THR GLN PHE TYR VAL ILE GLU PHE LYS CYS LEU SEQRES 1 B 103 MET GLN PRO ASN ASP ILE THR PHE PHE GLN ARG PHE GLN SEQRES 2 B 103 ASP ASP ILE LEU ALA GLY ARG LYS THR ILE THR ILE ARG SEQRES 3 B 103 ASP GLU SER GLU SER HIS PHE LYS THR GLY ASP VAL LEU SEQRES 4 B 103 ARG VAL GLY ARG PHE GLU ASP ASP GLY TYR PHE CYS THR SEQRES 5 B 103 ILE GLU VAL THR ALA THR SER THR VAL THR LEU ASP THR SEQRES 6 B 103 LEU THR GLU LYS HIS ALA GLU GLN GLU ASN MET THR LEU SEQRES 7 B 103 THR GLU LEU ILE LYS VAL ILE ALA ASP ILE TYR PRO GLY SEQRES 8 B 103 GLN THR GLN PHE TYR VAL ILE GLU PHE LYS CYS LEU HET CTN A 201 18 HET MG A 202 1 HET CTN B 201 17 HETNAM CTN 4-AMINO-1-BETA-D-RIBOFURANOSYL-2(1H)-PYRIMIDINONE HETNAM MG MAGNESIUM ION HETSYN CTN CYTIDINE FORMUL 3 CTN 2(C9 H13 N3 O5) FORMUL 4 MG MG 2+ FORMUL 6 HOH *335(H2 O) HELIX 1 AA1 PHE A 9 ARG A 11 5 3 HELIX 2 AA2 PHE A 12 ALA A 18 1 7 HELIX 3 AA3 ASP A 27 SER A 31 5 5 HELIX 4 AA4 ASP A 64 LEU A 66 5 3 HELIX 5 AA5 THR A 67 GLU A 74 1 8 HELIX 6 AA6 THR A 77 TYR A 89 1 13 HELIX 7 AA7 PHE B 9 ARG B 11 5 3 HELIX 8 AA8 PHE B 12 ALA B 18 1 7 HELIX 9 AA9 ASP B 27 SER B 31 5 5 HELIX 10 AB1 ASP B 64 LEU B 66 5 3 HELIX 11 AB2 THR B 67 GLU B 74 1 8 HELIX 12 AB3 THR B 77 TYR B 89 1 13 SHEET 1 AA1 5 ILE A 6 PHE A 8 0 SHEET 2 AA1 5 VAL A 38 ARG A 43 1 O GLY A 42 N ILE A 6 SHEET 3 AA1 5 TYR A 49 THR A 62 -1 O CYS A 51 N VAL A 41 SHEET 4 AA1 5 GLN A 94 CYS A 102 -1 O PHE A 95 N VAL A 61 SHEET 5 AA1 5 ILE A 23 ARG A 26 -1 N ARG A 26 O TYR A 96 SHEET 1 AA2 5 ILE B 6 PHE B 8 0 SHEET 2 AA2 5 VAL B 38 ARG B 43 1 O GLY B 42 N ILE B 6 SHEET 3 AA2 5 TYR B 49 THR B 62 -1 O CYS B 51 N VAL B 41 SHEET 4 AA2 5 GLN B 94 CYS B 102 -1 O VAL B 97 N SER B 59 SHEET 5 AA2 5 ILE B 23 ARG B 26 -1 N ARG B 26 O TYR B 96 LINK OD2 ASP A 87 MG MG A 202 1555 1555 2.05 LINK MG MG A 202 O HOH A 354 1555 1555 2.07 LINK MG MG A 202 O GLU B 45 1555 1555 2.10 LINK MG MG A 202 O HOH B 364 1555 2555 2.09 LINK MG MG A 202 O HOH B 399 1555 1555 2.15 LINK MG MG A 202 O HOH B 415 1555 1555 2.14 CRYST1 108.439 30.493 61.321 90.00 94.17 90.00 C 1 2 1 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 0.009222 0.000000 0.000672 0.00000 SCALE2 0.000000 0.032794 0.000000 0.00000 SCALE3 0.000000 0.000000 0.016351 0.00000 MTRIX1 1 0.554173 0.015068 0.832265 -12.18537 1 MTRIX2 1 0.005266 -0.999880 0.014596 20.29839 1 MTRIX3 1 0.832385 -0.003706 -0.554185 -3.31715 1 CONECT 697 1671 CONECT 1184 1671 CONECT 1653 1654 CONECT 1654 1653 1655 CONECT 1655 1654 1656 1668 CONECT 1656 1655 1657 CONECT 1657 1656 1658 1666 CONECT 1658 1657 1659 1663 CONECT 1659 1658 1660 CONECT 1660 1659 1661 CONECT 1661 1660 1662 1665 CONECT 1662 1661 1663 CONECT 1663 1658 1662 1664 CONECT 1664 1663 CONECT 1665 1661 CONECT 1666 1657 1667 1668 1670 CONECT 1667 1666 CONECT 1668 1655 1666 1669 CONECT 1669 1668 CONECT 1670 1666 CONECT 1671 697 1184 1742 1941 CONECT 1671 1957 CONECT 1672 1673 CONECT 1673 1672 1674 CONECT 1674 1673 1675 1687 CONECT 1675 1674 1676 CONECT 1676 1675 1677 1685 CONECT 1677 1676 1678 1682 CONECT 1678 1677 1679 CONECT 1679 1678 1680 CONECT 1680 1679 1681 1684 CONECT 1681 1680 1682 CONECT 1682 1677 1681 1683 CONECT 1683 1682 CONECT 1684 1680 CONECT 1685 1676 1686 1687 CONECT 1686 1685 CONECT 1687 1674 1685 1688 CONECT 1688 1687 CONECT 1742 1671 CONECT 1941 1671 CONECT 1957 1671 MASTER 335 0 3 12 10 0 0 9 2013 2 42 16 END