HEADER LYASE/DNA 28-JAN-22 7TR7 TITLE APE1 PRODUCT COMPLEX WITH ABASIC SSDNA COMPND MOL_ID: 1; COMPND 2 MOLECULE: DNA-(APURINIC OR APYRIMIDINIC SITE) LYASE; COMPND 3 CHAIN: A, B; COMPND 4 SYNONYM: APEX1, APEX NUCLEASE,APEN,APURINIC-APYRIMIDINIC ENDONUCLEASE COMPND 5 1, APE-1, REF-1, REDOX FACTOR-1; COMPND 6 EC: 3.1.-.-, 4.2.99.18; COMPND 7 ENGINEERED: YES; COMPND 8 MUTATION: YES; COMPND 9 MOL_ID: 2; COMPND 10 MOLECULE: DNA (5'-D(P*(3DR)P*CP*GP*AP*TP*GP*C)-3'); COMPND 11 CHAIN: D, C; COMPND 12 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: APEX1, APE, APE1, APEX, APX, HAP1, REF1; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 8 MOL_ID: 2; SOURCE 9 SYNTHETIC: YES; SOURCE 10 ORGANISM_SCIENTIFIC: SYNTHETIC CONSTRUCT; SOURCE 11 ORGANISM_TAXID: 32630 KEYWDS DNA REPAIR, ABASIC SSDNA, AP-ENDONUCLEASE, LYASE, LYASE-DNA COMPLEX EXPDTA X-RAY DIFFRACTION AUTHOR B.D.FREUDENTHAL,N.M.HOITSMA REVDAT 4 25-OCT-23 7TR7 1 REMARK REVDAT 3 02-AUG-23 7TR7 1 JRNL REVDAT 2 14-JUN-23 7TR7 1 JRNL REVDAT 1 12-APR-23 7TR7 0 JRNL AUTH N.M.HOITSMA,J.NORRIS,T.H.KHOANG,V.KAUSHIK,R.CHADDA,E.ANTONY, JRNL AUTH 2 M.HEDGLIN,B.D.FREUDENTHAL JRNL TITL MECHANISTIC INSIGHT INTO AP-ENDONUCLEASE 1 CLEAVAGE OF JRNL TITL 2 ABASIC SITES AT STALLED REPLICATION FORK MIMICS. JRNL REF NUCLEIC ACIDS RES. V. 51 6738 2023 JRNL REFN ESSN 1362-4962 JRNL PMID 37264933 JRNL DOI 10.1093/NAR/GKAD481 REMARK 2 REMARK 2 RESOLUTION. 2.00 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PHENIX 1.17.1_3660 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) : 2.00 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 24.81 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 1.350 REMARK 3 COMPLETENESS FOR RANGE (%) : 76.9 REMARK 3 NUMBER OF REFLECTIONS : 83056 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.183 REMARK 3 R VALUE (WORKING SET) : 0.182 REMARK 3 FREE R VALUE : 0.215 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 3.650 REMARK 3 FREE R VALUE TEST SET COUNT : 3035 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 24.8100 - 5.5900 0.98 4613 169 0.1461 0.1792 REMARK 3 2 5.5800 - 4.4400 0.96 4569 180 0.1402 0.1473 REMARK 3 3 4.4400 - 3.8800 0.96 4541 170 0.1417 0.1765 REMARK 3 4 3.8800 - 3.5300 0.96 4526 173 0.1634 0.2003 REMARK 3 5 3.5300 - 3.2800 0.93 4433 170 0.1718 0.1666 REMARK 3 6 3.2700 - 3.0800 0.92 4260 171 0.1879 0.1993 REMARK 3 7 3.0800 - 2.9300 0.91 4367 154 0.2027 0.3294 REMARK 3 8 2.9300 - 2.8000 0.90 4255 161 0.1977 0.2683 REMARK 3 9 2.8000 - 2.6900 0.89 4196 148 0.2120 0.2059 REMARK 3 10 2.6900 - 2.6000 0.88 4208 152 0.2008 0.2359 REMARK 3 11 2.6000 - 2.5200 0.88 4175 160 0.2111 0.2404 REMARK 3 12 2.5200 - 2.4500 0.86 4031 164 0.2216 0.2335 REMARK 3 13 2.4500 - 2.3800 0.82 3892 145 0.2072 0.2823 REMARK 3 14 2.3800 - 2.3300 0.73 3447 133 0.2183 0.2934 REMARK 3 15 2.3200 - 2.2700 0.66 3110 121 0.2181 0.2600 REMARK 3 16 2.2700 - 2.2200 0.59 2831 105 0.2265 0.3452 REMARK 3 17 2.2200 - 2.1800 0.55 2600 103 0.2357 0.2464 REMARK 3 18 2.1800 - 2.1400 0.53 2512 100 0.2403 0.2457 REMARK 3 19 2.1400 - 2.1000 0.51 2440 92 0.2448 0.2773 REMARK 3 20 2.1000 - 2.0600 0.50 2403 86 0.2472 0.2880 REMARK 3 21 2.0600 - 2.0300 0.49 2321 92 0.2459 0.3075 REMARK 3 22 2.0300 - 2.0000 0.49 2291 86 0.2689 0.2917 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) : 0.212 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 24.031 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 23.64 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 28.45 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 : 0.011 4851 REMARK 3 ANGLE : 1.088 6654 REMARK 3 CHIRALITY : 0.063 707 REMARK 3 PLANARITY : 0.006 809 REMARK 3 DIHEDRAL : 22.318 1825 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 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 7TR7 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 31-JAN-22. REMARK 100 THE DEPOSITION ID IS D_1000262810. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 15-JUL-20 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 6 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 HF REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.54 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : PIXEL REMARK 200 DETECTOR MANUFACTURER : DECTRIS PILATUS 200K REMARK 200 INTENSITY-INTEGRATION SOFTWARE : HKL-2000 REMARK 200 DATA SCALING SOFTWARE : HKL-2000 REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 83056 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.000 REMARK 200 RESOLUTION RANGE LOW (A) : 25.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 100.0 REMARK 200 DATA REDUNDANCY : 6.300 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 20.8000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.00 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.03 REMARK 200 COMPLETENESS FOR SHELL (%) : 99.9 REMARK 200 DATA REDUNDANCY IN SHELL : 4.30 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: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: PHENIX 1.17.1_3660 REMARK 200 STARTING MODEL: 5DFF REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 60.52 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 3.12 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 0.05M KCL, 0.05M SODIUM CACODYLATE PH REMARK 280 6, 10% PEG 8,000, 5MM SPERMINE, 5MM L-ARGININAMIDE REMARK 280 DIHYDROCHLORIDE, VAPOR DIFFUSION, SITTING DROP, TEMPERATURE 291K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 65 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -Y,X-Y,Z+2/3 REMARK 290 3555 -X+Y,-X,Z+1/3 REMARK 290 4555 -X,-Y,Z+1/2 REMARK 290 5555 Y,-X+Y,Z+1/6 REMARK 290 6555 X-Y,X,Z+5/6 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 136.11933 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 68.05967 REMARK 290 SMTRY1 4 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 102.08950 REMARK 290 SMTRY1 5 0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 5 -0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 5 0.000000 0.000000 1.000000 34.02983 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 170.14917 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: DIMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 1390 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 13190 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -17.0 KCAL/MOL REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, D 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: DIMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 1380 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 13120 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -16.0 KCAL/MOL REMARK 350 APPLY THE FOLLOWING TO CHAINS: C 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 APPLY THE FOLLOWING TO CHAINS: B REMARK 350 BIOMT1 2 -0.500000 0.866025 0.000000 83.71700 REMARK 350 BIOMT2 2 -0.866025 -0.500000 0.000000 0.00000 REMARK 350 BIOMT3 2 0.000000 0.000000 1.000000 68.05967 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 ASP A 124 CG OD1 OD2 REMARK 470 LYS A 125 CG CD CE NZ REMARK 470 ASP B 124 CG OD1 OD2 REMARK 470 LYS B 125 CG CD CE NZ REMARK 470 GLU B 126 CG CD OE1 OE2 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 110 40.18 -76.97 REMARK 500 SER A 129 -144.15 56.30 REMARK 500 ASN A 222 73.65 -118.52 REMARK 500 ASN A 222 71.00 -119.40 REMARK 500 PHE A 232 22.60 -140.57 REMARK 500 GLU B 110 33.75 -76.48 REMARK 500 LYS B 125 -168.50 -78.58 REMARK 500 GLU B 126 -6.71 -156.49 REMARK 500 SER B 129 -143.13 47.53 REMARK 500 ASN B 222 70.83 -112.88 REMARK 500 PHE B 232 20.12 -141.36 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 401 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 GLU A 96 OE1 REMARK 620 2 HOH A 507 O 89.2 REMARK 620 3 HOH A 533 O 175.8 86.6 REMARK 620 4 HOH A 559 O 85.3 85.7 94.1 REMARK 620 5 3DR D 1 OP1 95.6 172.0 88.5 101.0 REMARK 620 6 HOH D 113 O 93.4 83.9 86.5 169.6 89.4 REMARK 620 N 1 2 3 4 5 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 MG C 101 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 GLU B 96 OE1 REMARK 620 2 HOH B 424 O 76.1 REMARK 620 3 HOH B 445 O 75.7 2.4 REMARK 620 4 HOH B 454 O 75.1 1.5 1.3 REMARK 620 5 3DR C 1 OP1 77.1 2.9 1.4 2.5 REMARK 620 6 HOH C 216 O 77.8 2.3 2.3 2.7 1.5 REMARK 620 N 1 2 3 4 5 DBREF 7TR7 A 43 318 UNP P27695 APEX1_HUMAN 43 318 DBREF 7TR7 B 43 318 UNP P27695 APEX1_HUMAN 43 318 DBREF 7TR7 D 1 7 PDB 7TR7 7TR7 1 7 DBREF 7TR7 C 1 7 PDB 7TR7 7TR7 1 7 SEQADV 7TR7 ALA A 138 UNP P27695 CYS 138 ENGINEERED MUTATION SEQADV 7TR7 ALA B 138 UNP P27695 CYS 138 ENGINEERED MUTATION SEQRES 1 A 276 ALA LEU TYR GLU ASP PRO PRO ASP GLN LYS THR SER PRO SEQRES 2 A 276 SER GLY LYS PRO ALA THR LEU LYS ILE CYS SER TRP ASN SEQRES 3 A 276 VAL ASP GLY LEU ARG ALA TRP ILE LYS LYS LYS GLY LEU SEQRES 4 A 276 ASP TRP VAL LYS GLU GLU ALA PRO ASP ILE LEU CYS LEU SEQRES 5 A 276 GLN GLU THR LYS CYS SER GLU ASN LYS LEU PRO ALA GLU SEQRES 6 A 276 LEU GLN GLU LEU PRO GLY LEU SER HIS GLN TYR TRP SER SEQRES 7 A 276 ALA PRO SER ASP LYS GLU GLY TYR SER GLY VAL GLY LEU SEQRES 8 A 276 LEU SER ARG GLN ALA PRO LEU LYS VAL SER TYR GLY ILE SEQRES 9 A 276 GLY ASP GLU GLU HIS ASP GLN GLU GLY ARG VAL ILE VAL SEQRES 10 A 276 ALA GLU PHE ASP SER PHE VAL LEU VAL THR ALA TYR VAL SEQRES 11 A 276 PRO ASN ALA GLY ARG GLY LEU VAL ARG LEU GLU TYR ARG SEQRES 12 A 276 GLN ARG TRP ASP GLU ALA PHE ARG LYS PHE LEU LYS GLY SEQRES 13 A 276 LEU ALA SER ARG LYS PRO LEU VAL LEU CYS GLY ASP LEU SEQRES 14 A 276 ASN VAL ALA HIS GLU GLU ILE ASP LEU ARG ASN PRO LYS SEQRES 15 A 276 GLY ASN LYS LYS ASN ALA GLY PHE THR PRO GLN GLU ARG SEQRES 16 A 276 GLN GLY PHE GLY GLU LEU LEU GLN ALA VAL PRO LEU ALA SEQRES 17 A 276 ASP SER PHE ARG HIS LEU TYR PRO ASN THR PRO TYR ALA SEQRES 18 A 276 TYR THR PHE TRP THR TYR MET MET ASN ALA ARG SER LYS SEQRES 19 A 276 ASN VAL GLY TRP ARG LEU ASP TYR PHE LEU LEU SER HIS SEQRES 20 A 276 SER LEU LEU PRO ALA LEU CYS ASP SER LYS ILE ARG SER SEQRES 21 A 276 LYS ALA LEU GLY SER ASP HIS CYS PRO ILE THR LEU TYR SEQRES 22 A 276 LEU ALA LEU SEQRES 1 B 276 ALA LEU TYR GLU ASP PRO PRO ASP GLN LYS THR SER PRO SEQRES 2 B 276 SER GLY LYS PRO ALA THR LEU LYS ILE CYS SER TRP ASN SEQRES 3 B 276 VAL ASP GLY LEU ARG ALA TRP ILE LYS LYS LYS GLY LEU SEQRES 4 B 276 ASP TRP VAL LYS GLU GLU ALA PRO ASP ILE LEU CYS LEU SEQRES 5 B 276 GLN GLU THR LYS CYS SER GLU ASN LYS LEU PRO ALA GLU SEQRES 6 B 276 LEU GLN GLU LEU PRO GLY LEU SER HIS GLN TYR TRP SER SEQRES 7 B 276 ALA PRO SER ASP LYS GLU GLY TYR SER GLY VAL GLY LEU SEQRES 8 B 276 LEU SER ARG GLN ALA PRO LEU LYS VAL SER TYR GLY ILE SEQRES 9 B 276 GLY ASP GLU GLU HIS ASP GLN GLU GLY ARG VAL ILE VAL SEQRES 10 B 276 ALA GLU PHE ASP SER PHE VAL LEU VAL THR ALA TYR VAL SEQRES 11 B 276 PRO ASN ALA GLY ARG GLY LEU VAL ARG LEU GLU TYR ARG SEQRES 12 B 276 GLN ARG TRP ASP GLU ALA PHE ARG LYS PHE LEU LYS GLY SEQRES 13 B 276 LEU ALA SER ARG LYS PRO LEU VAL LEU CYS GLY ASP LEU SEQRES 14 B 276 ASN VAL ALA HIS GLU GLU ILE ASP LEU ARG ASN PRO LYS SEQRES 15 B 276 GLY ASN LYS LYS ASN ALA GLY PHE THR PRO GLN GLU ARG SEQRES 16 B 276 GLN GLY PHE GLY GLU LEU LEU GLN ALA VAL PRO LEU ALA SEQRES 17 B 276 ASP SER PHE ARG HIS LEU TYR PRO ASN THR PRO TYR ALA SEQRES 18 B 276 TYR THR PHE TRP THR TYR MET MET ASN ALA ARG SER LYS SEQRES 19 B 276 ASN VAL GLY TRP ARG LEU ASP TYR PHE LEU LEU SER HIS SEQRES 20 B 276 SER LEU LEU PRO ALA LEU CYS ASP SER LYS ILE ARG SER SEQRES 21 B 276 LYS ALA LEU GLY SER ASP HIS CYS PRO ILE THR LEU TYR SEQRES 22 B 276 LEU ALA LEU SEQRES 1 D 7 3DR DC DG DA DT DG DC SEQRES 1 C 7 3DR DC DG DA DT DG DC HET 3DR D 1 12 HET 3DR C 1 12 HET MG A 401 1 HET MG C 101 1 HETNAM 3DR 1',2'-DIDEOXYRIBOFURANOSE-5'-PHOSPHATE HETNAM MG MAGNESIUM ION HETSYN 3DR ABASIC DIDEOXYRIBOSE FORMUL 3 3DR 2(C5 H11 O6 P) FORMUL 5 MG 2(MG 2+) FORMUL 7 HOH *356(H2 O) HELIX 1 AA1 GLY A 71 LYS A 78 1 8 HELIX 2 AA2 LYS A 79 ALA A 88 1 10 HELIX 3 AA3 PRO A 105 GLN A 109 5 5 HELIX 4 AA4 LEU A 111 SER A 115 5 5 HELIX 5 AA5 ASP A 148 ASP A 152 5 5 HELIX 6 AA6 ARG A 181 LYS A 203 1 23 HELIX 7 AA7 GLU A 216 LEU A 220 5 5 HELIX 8 AA8 THR A 233 VAL A 247 1 15 HELIX 9 AA9 SER A 252 TYR A 257 1 6 HELIX 10 AB1 TYR A 269 ALA A 273 5 5 HELIX 11 AB2 HIS A 289 PRO A 293 5 5 HELIX 12 AB3 GLY B 71 LYS B 78 1 8 HELIX 13 AB4 LYS B 79 ALA B 88 1 10 HELIX 14 AB5 PRO B 105 LEU B 111 5 7 HELIX 15 AB6 ASP B 148 ASP B 152 5 5 HELIX 16 AB7 ARG B 181 LYS B 203 1 23 HELIX 17 AB8 GLU B 216 LEU B 220 5 5 HELIX 18 AB9 THR B 233 VAL B 247 1 15 HELIX 19 AC1 SER B 252 TYR B 257 1 6 HELIX 20 AC2 TYR B 269 ASN B 277 5 9 HELIX 21 AC3 SER B 290 PRO B 293 5 4 SHEET 1 AA1 6 HIS A 116 SER A 120 0 SHEET 2 AA1 6 VAL A 131 SER A 135 -1 O SER A 135 N HIS A 116 SHEET 3 AA1 6 ILE A 91 GLN A 95 -1 N LEU A 92 O LEU A 134 SHEET 4 AA1 6 LEU A 62 ASN A 68 1 N CYS A 65 O CYS A 93 SHEET 5 AA1 6 ILE A 312 LEU A 316 -1 O LEU A 314 N ILE A 64 SHEET 6 AA1 6 LEU A 295 ILE A 300 -1 N LYS A 299 O THR A 313 SHEET 1 AA2 6 LYS A 141 TYR A 144 0 SHEET 2 AA2 6 VAL A 157 GLU A 161 -1 O VAL A 159 N SER A 143 SHEET 3 AA2 6 VAL A 166 TYR A 171 -1 O LEU A 167 N ALA A 160 SHEET 4 AA2 6 LEU A 205 ASP A 210 1 O CYS A 208 N VAL A 168 SHEET 5 AA2 6 ASP A 283 LEU A 287 -1 O LEU A 286 N LEU A 207 SHEET 6 AA2 6 ALA A 250 ASP A 251 -1 N ALA A 250 O LEU A 287 SHEET 1 AA3 6 HIS B 116 SER B 120 0 SHEET 2 AA3 6 VAL B 131 SER B 135 -1 O SER B 135 N HIS B 116 SHEET 3 AA3 6 ILE B 91 GLN B 95 -1 N LEU B 92 O LEU B 134 SHEET 4 AA3 6 LEU B 62 ASN B 68 1 N CYS B 65 O CYS B 93 SHEET 5 AA3 6 ILE B 312 LEU B 316 -1 O LEU B 314 N ILE B 64 SHEET 6 AA3 6 LEU B 295 ILE B 300 -1 N LYS B 299 O THR B 313 SHEET 1 AA4 6 LYS B 141 TYR B 144 0 SHEET 2 AA4 6 VAL B 157 GLU B 161 -1 O VAL B 159 N SER B 143 SHEET 3 AA4 6 VAL B 166 TYR B 171 -1 O LEU B 167 N ALA B 160 SHEET 4 AA4 6 LEU B 205 ASP B 210 1 O VAL B 206 N VAL B 168 SHEET 5 AA4 6 ASP B 283 SER B 288 -1 O LEU B 286 N LEU B 207 SHEET 6 AA4 6 LEU B 249 ASP B 251 -1 N ALA B 250 O LEU B 287 LINK O3' 3DR D 1 P DC D 2 1555 1555 1.58 LINK O3' 3DR C 1 P DC C 2 1555 1555 1.62 LINK OE1 GLU A 96 MG MG A 401 1555 1555 2.06 LINK MG MG A 401 O HOH A 507 1555 1555 2.20 LINK MG MG A 401 O HOH A 533 1555 1555 2.22 LINK MG MG A 401 O HOH A 559 1555 1555 2.05 LINK MG MG A 401 OP1 3DR D 1 1555 1555 2.03 LINK MG MG A 401 O HOH D 113 1555 1555 2.21 LINK OE1 GLU B 96 MG MG C 101 1555 2544 2.08 LINK O HOH B 424 MG MG C 101 3655 1555 2.09 LINK O HOH B 445 MG MG C 101 3655 1555 2.20 LINK O HOH B 454 MG MG C 101 3655 1555 2.16 LINK OP1 3DR C 1 MG MG C 101 1555 1555 2.23 LINK MG MG C 101 O HOH C 216 1555 1555 2.04 CISPEP 1 VAL A 247 PRO A 248 0 -4.79 CISPEP 2 VAL B 247 PRO B 248 0 -6.69 CRYST1 83.717 83.717 204.179 90.00 90.00 120.00 P 65 12 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 0.011945 0.006896 0.000000 0.00000 SCALE2 0.000000 0.013793 0.000000 0.00000 SCALE3 0.000000 0.000000 0.004898 0.00000