HEADER GENE REGULATION 11-SEP-20 7ACM TITLE CRYSTAL STRUCTURE OF E. COLI HTH-TYPE TRANSCRIPTIONAL REGULATOR RCDA TITLE 2 IN COMPLEX WITH TMAO AT 1.76 A RESOLUTION COMPND MOL_ID: 1; COMPND 2 MOLECULE: HTH-TYPE TRANSCRIPTIONAL REGULATOR RCDA; COMPND 3 CHAIN: A, B; COMPND 4 SYNONYM: REGULATOR OF CSGD; COMPND 5 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI; SOURCE 3 ORGANISM_TAXID: 562; SOURCE 4 GENE: RCDA, YBJK, B0846, JW5114; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 562 KEYWDS TRANSCRIPTION FACTOR, HTH MOTIF, DNA-BINDING PROTEIN, GENE REGULATION EXPDTA X-RAY DIFFRACTION AUTHOR A.J.PIETRZYK-BRZEZINSKA,A.COCIUROVSCAIA REVDAT 4 31-JAN-24 7ACM 1 REMARK REVDAT 3 22-DEC-21 7ACM 1 JRNL REVDAT 2 29-SEP-21 7ACM 1 JRNL REVDAT 1 18-AUG-21 7ACM 0 JRNL AUTH A.J.PIETRZYK-BRZEZINSKA,A.COCIUROVSCAIA JRNL TITL STRUCTURES OF THE TETR-LIKE TRANSCRIPTION REGULATOR RCDA JRNL TITL 2 ALONE AND IN COMPLEXES WITH LIGANDS. JRNL REF PROTEINS V. 90 33 2022 JRNL REFN ESSN 1097-0134 JRNL PMID 34288132 JRNL DOI 10.1002/PROT.26183 REMARK 2 REMARK 2 RESOLUTION. 1.76 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 : ML REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.76 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 42.29 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 1.390 REMARK 3 COMPLETENESS FOR RANGE (%) : 98.0 REMARK 3 NUMBER OF REFLECTIONS : 28947 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.160 REMARK 3 R VALUE (WORKING SET) : 0.158 REMARK 3 FREE R VALUE : 0.203 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.000 REMARK 3 FREE R VALUE TEST SET COUNT : 1448 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 42.2940 - 3.7964 0.99 2832 149 0.1291 0.1379 REMARK 3 2 3.7964 - 3.0136 0.98 2760 146 0.1397 0.2053 REMARK 3 3 3.0136 - 2.6327 0.99 2795 147 0.1683 0.2318 REMARK 3 4 2.6327 - 2.3920 0.98 2748 144 0.1663 0.2088 REMARK 3 5 2.3920 - 2.2206 0.99 2760 146 0.1679 0.2201 REMARK 3 6 2.2206 - 2.0897 0.99 2780 146 0.1672 0.2124 REMARK 3 7 2.0897 - 1.9850 0.99 2750 145 0.1848 0.2589 REMARK 3 8 1.9850 - 1.8986 0.99 2772 146 0.2056 0.2639 REMARK 3 9 1.8986 - 1.8255 0.99 2773 146 0.2230 0.3068 REMARK 3 10 1.8255 - 1.7630 0.90 2529 133 0.2359 0.2948 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) : 0.200 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 22.490 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 24.49 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 34.70 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 : 0.007 2943 REMARK 3 ANGLE : 1.036 3996 REMARK 3 CHIRALITY : 0.038 444 REMARK 3 PLANARITY : 0.005 514 REMARK 3 DIHEDRAL : 14.322 1120 REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : 4 REMARK 3 TLS GROUP : 1 REMARK 3 SELECTION: (CHAIN A AND RESID 6:64) REMARK 3 ORIGIN FOR THE GROUP (A): 22.6790 19.0207 32.8413 REMARK 3 T TENSOR REMARK 3 T11: 0.2749 T22: 0.2426 REMARK 3 T33: 0.1820 T12: 0.0388 REMARK 3 T13: -0.0485 T23: -0.0439 REMARK 3 L TENSOR REMARK 3 L11: 7.8212 L22: 2.2379 REMARK 3 L33: 4.3106 L12: 0.4923 REMARK 3 L13: 3.0370 L23: -1.1392 REMARK 3 S TENSOR REMARK 3 S11: 0.0424 S12: -0.2120 S13: 0.1004 REMARK 3 S21: 0.4855 S22: 0.0067 S23: -0.3312 REMARK 3 S31: -0.0488 S32: 0.0734 S33: -0.0770 REMARK 3 TLS GROUP : 2 REMARK 3 SELECTION: (CHAIN A AND RESID 65:178) REMARK 3 ORIGIN FOR THE GROUP (A): 13.7949 12.6173 8.8042 REMARK 3 T TENSOR REMARK 3 T11: 0.1227 T22: 0.1242 REMARK 3 T33: 0.1485 T12: 0.0307 REMARK 3 T13: 0.0139 T23: 0.0242 REMARK 3 L TENSOR REMARK 3 L11: 2.6721 L22: 2.7053 REMARK 3 L33: 3.0875 L12: -0.4329 REMARK 3 L13: -0.0887 L23: 0.9319 REMARK 3 S TENSOR REMARK 3 S11: -0.0475 S12: -0.0736 S13: -0.0421 REMARK 3 S21: -0.0398 S22: 0.0081 S23: -0.0892 REMARK 3 S31: 0.1622 S32: 0.1985 S33: 0.0227 REMARK 3 TLS GROUP : 3 REMARK 3 SELECTION: (CHAIN B AND RESID 1:47) REMARK 3 ORIGIN FOR THE GROUP (A): -1.8601 38.7719 29.4291 REMARK 3 T TENSOR REMARK 3 T11: 0.3333 T22: 0.2615 REMARK 3 T33: 0.5300 T12: 0.0408 REMARK 3 T13: 0.0530 T23: -0.0607 REMARK 3 L TENSOR REMARK 3 L11: 5.7832 L22: 0.3483 REMARK 3 L33: 2.1898 L12: -1.3660 REMARK 3 L13: -1.1489 L23: 0.3110 REMARK 3 S TENSOR REMARK 3 S11: -0.0890 S12: -0.1470 S13: 0.3936 REMARK 3 S21: 0.2086 S22: 0.0345 S23: 0.8995 REMARK 3 S31: -0.2427 S32: -0.2352 S33: 0.0564 REMARK 3 TLS GROUP : 4 REMARK 3 SELECTION: (CHAIN B AND RESID 48:178) REMARK 3 ORIGIN FOR THE GROUP (A): 5.0523 26.7786 6.3351 REMARK 3 T TENSOR REMARK 3 T11: 0.1748 T22: 0.1366 REMARK 3 T33: 0.1700 T12: 0.0307 REMARK 3 T13: -0.0239 T23: -0.0006 REMARK 3 L TENSOR REMARK 3 L11: 1.4549 L22: 2.1025 REMARK 3 L33: 3.6601 L12: 0.0283 REMARK 3 L13: 0.0308 L23: 0.1750 REMARK 3 S TENSOR REMARK 3 S11: 0.0074 S12: -0.0185 S13: 0.1360 REMARK 3 S21: -0.2110 S22: -0.0784 S23: 0.0752 REMARK 3 S31: -0.4149 S32: -0.0920 S33: 0.0416 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 7ACM COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 11-SEP-20. REMARK 100 THE DEPOSITION ID IS D_1292111197. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 30-NOV-19 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 7.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : BESSY REMARK 200 BEAMLINE : 14.1 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.9180 REMARK 200 MONOCHROMATOR : DCM SI(111) REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : PIXEL REMARK 200 DETECTOR MANUFACTURER : DECTRIS PILATUS 6M REMARK 200 INTENSITY-INTEGRATION SOFTWARE : XDS REMARK 200 DATA SCALING SOFTWARE : XSCALE REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 28947 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.760 REMARK 200 RESOLUTION RANGE LOW (A) : 42.294 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 97.9 REMARK 200 DATA REDUNDANCY : 6.557 REMARK 200 R MERGE (I) : 0.07200 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 14.7300 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.76 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.87 REMARK 200 COMPLETENESS FOR SHELL (%) : 93.7 REMARK 200 DATA REDUNDANCY IN SHELL : 6.43 REMARK 200 R MERGE FOR SHELL (I) : 0.60800 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 2.420 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: 5X5I REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 33.18 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 1.84 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 0.2 M TMAO, 0.1 M HEPES PH 7.5, 10% REMARK 280 PEG 3350, VAPOR DIFFUSION, HANGING DROP, 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 37.06700 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: DIMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 4130 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 14940 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -21.0 KCAL/MOL REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, 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 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 ARG A 2 REMARK 465 ARG A 3 REMARK 465 ALA A 4 REMARK 465 ASN A 5 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 ASN B 5 73.54 39.62 REMARK 500 REMARK 500 REMARK: NULL REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue TMO A 201 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue TMO B 201 DBREF 7ACM A 1 178 UNP P75811 RCDA_ECOLI 1 178 DBREF 7ACM B 1 178 UNP P75811 RCDA_ECOLI 1 178 SEQRES 1 A 178 MET ARG ARG ALA ASN ASP PRO GLN ARG ARG GLU LYS ILE SEQRES 2 A 178 ILE GLN ALA THR LEU GLU ALA VAL LYS LEU TYR GLY ILE SEQRES 3 A 178 HIS ALA VAL THR HIS ARG LYS ILE ALA THR LEU ALA GLY SEQRES 4 A 178 VAL PRO LEU GLY SER MET THR TYR TYR PHE SER GLY ILE SEQRES 5 A 178 ASP GLU LEU LEU LEU GLU ALA PHE SER SER PHE THR GLU SEQRES 6 A 178 ILE MET SER ARG GLN TYR GLN ALA PHE PHE SER ASP VAL SEQRES 7 A 178 SER ASP ALA PRO GLY ALA CYS GLN ALA ILE THR ASP MET SEQRES 8 A 178 ILE TYR SER SER GLN VAL ALA THR PRO ASP ASN MET GLU SEQRES 9 A 178 LEU MET TYR GLN LEU TYR ALA LEU ALA SER ARG LYS PRO SEQRES 10 A 178 LEU LEU LYS THR VAL MET GLN ASN TRP MET GLN ARG SER SEQRES 11 A 178 GLN GLN THR LEU GLU GLN TRP PHE GLU PRO GLY THR ALA SEQRES 12 A 178 ARG ALA LEU ASP ALA PHE ILE GLU GLY MET THR LEU HIS SEQRES 13 A 178 PHE VAL THR ASP ARG LYS PRO LEU SER ARG GLU GLU ILE SEQRES 14 A 178 LEU ARG MET VAL GLU ARG VAL ALA GLY SEQRES 1 B 178 MET ARG ARG ALA ASN ASP PRO GLN ARG ARG GLU LYS ILE SEQRES 2 B 178 ILE GLN ALA THR LEU GLU ALA VAL LYS LEU TYR GLY ILE SEQRES 3 B 178 HIS ALA VAL THR HIS ARG LYS ILE ALA THR LEU ALA GLY SEQRES 4 B 178 VAL PRO LEU GLY SER MET THR TYR TYR PHE SER GLY ILE SEQRES 5 B 178 ASP GLU LEU LEU LEU GLU ALA PHE SER SER PHE THR GLU SEQRES 6 B 178 ILE MET SER ARG GLN TYR GLN ALA PHE PHE SER ASP VAL SEQRES 7 B 178 SER ASP ALA PRO GLY ALA CYS GLN ALA ILE THR ASP MET SEQRES 8 B 178 ILE TYR SER SER GLN VAL ALA THR PRO ASP ASN MET GLU SEQRES 9 B 178 LEU MET TYR GLN LEU TYR ALA LEU ALA SER ARG LYS PRO SEQRES 10 B 178 LEU LEU LYS THR VAL MET GLN ASN TRP MET GLN ARG SER SEQRES 11 B 178 GLN GLN THR LEU GLU GLN TRP PHE GLU PRO GLY THR ALA SEQRES 12 B 178 ARG ALA LEU ASP ALA PHE ILE GLU GLY MET THR LEU HIS SEQRES 13 B 178 PHE VAL THR ASP ARG LYS PRO LEU SER ARG GLU GLU ILE SEQRES 14 B 178 LEU ARG MET VAL GLU ARG VAL ALA GLY HET TMO A 201 5 HET TMO B 201 10 HETNAM TMO TRIMETHYLAMINE OXIDE FORMUL 3 TMO 2(C3 H9 N O) FORMUL 5 HOH *283(H2 O) HELIX 1 AA1 ASP A 6 GLY A 25 1 20 HELIX 2 AA2 ILE A 26 VAL A 29 5 4 HELIX 3 AA3 THR A 30 GLY A 39 1 10 HELIX 4 AA4 PRO A 41 PHE A 49 1 9 HELIX 5 AA5 GLY A 51 PHE A 74 1 24 HELIX 6 AA6 ASP A 80 SER A 94 1 15 HELIX 7 AA7 THR A 99 ALA A 113 1 15 HELIX 8 AA8 LYS A 116 GLU A 135 1 20 HELIX 9 AA9 GLU A 139 ASP A 160 1 22 HELIX 10 AB1 SER A 165 GLY A 178 1 14 HELIX 11 AB2 ASP B 6 GLY B 25 1 20 HELIX 12 AB3 ILE B 26 VAL B 29 5 4 HELIX 13 AB4 THR B 30 GLY B 39 1 10 HELIX 14 AB5 PRO B 41 TYR B 48 5 8 HELIX 15 AB6 GLY B 51 PHE B 74 1 24 HELIX 16 AB7 ASP B 80 SER B 94 1 15 HELIX 17 AB8 THR B 99 ALA B 113 1 15 HELIX 18 AB9 LYS B 116 GLU B 135 1 20 HELIX 19 AC1 GLU B 139 ASP B 160 1 22 HELIX 20 AC2 SER B 165 GLY B 178 1 14 SITE 1 AC1 5 TYR A 110 TRP A 126 SER A 130 ASP A 147 SITE 2 AC1 5 GLU A 151 SITE 1 AC2 7 TYR B 71 TYR B 110 TRP B 126 SER B 130 SITE 2 AC2 7 ASP B 147 GLU B 151 HOH B 358 CRYST1 39.762 74.134 51.710 90.00 95.19 90.00 P 1 21 1 4 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 0.025150 0.000000 0.002286 0.00000 SCALE2 0.000000 0.013489 0.000000 0.00000 SCALE3 0.000000 0.000000 0.019418 0.00000