PDB Short entry for 1B1B HEADER METAL BINDING PROTEIN 19-NOV-98 1B1B TITLE IRON DEPENDENT REGULATOR COMPND MOL_ID: 1; COMPND 2 MOLECULE: PROTEIN (IRON DEPENDENT REGULATOR); COMPND 3 CHAIN: A; COMPND 4 SYNONYM: IDER; COMPND 5 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: MYCOBACTERIUM TUBERCULOSIS; SOURCE 3 ORGANISM_TAXID: 1773; SOURCE 4 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 5 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 6 EXPRESSION_SYSTEM_STRAIN: DH5-ALPHA; SOURCE 7 EXPRESSION_SYSTEM_PLASMID: PMTBKS KEYWDS IDER, IRON DEPEDENT REGULATOR, MYCOBACTERIUM TUBERCULOSIS, METAL KEYWDS 2 BINDING PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR E.POHL,R.K.HOLMES,W.G.HOL REVDAT 5 27-DEC-23 1B1B 1 REMARK LINK REVDAT 4 02-MAR-10 1B1B 1 REMARK HETATM REVDAT 3 24-FEB-09 1B1B 1 VERSN REVDAT 2 01-APR-03 1B1B 1 JRNL REVDAT 1 03-DEC-99 1B1B 0 JRNL AUTH E.POHL,R.K.HOLMES,W.G.HOL JRNL TITL CRYSTAL STRUCTURE OF THE IRON-DEPENDENT REGULATOR (IDER) JRNL TITL 2 FROM MYCOBACTERIUM TUBERCULOSIS SHOWS BOTH METAL BINDING JRNL TITL 3 SITES FULLY OCCUPIED. JRNL REF J.MOL.BIOL. V. 285 1145 1999 JRNL REFN ISSN 0022-2836 JRNL PMID 9887269 JRNL DOI 10.1006/JMBI.1998.2339 REMARK 2 REMARK 2 RESOLUTION. 2.60 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : X-PLOR 3.851 REMARK 3 AUTHORS : BRUNGER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.60 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 8.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 2.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : NULL REMARK 3 DATA CUTOFF LOW (ABS(F)) : NULL REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 95.0 REMARK 3 NUMBER OF REFLECTIONS : 9277 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 SET) : 0.280 REMARK 3 FREE R VALUE : 0.360 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 10.000 REMARK 3 FREE R VALUE TEST SET COUNT : 927 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : NULL REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : NULL REMARK 3 BIN RESOLUTION RANGE HIGH (A) : NULL REMARK 3 BIN RESOLUTION RANGE LOW (A) : NULL REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : NULL REMARK 3 REFLECTIONS IN BIN (WORKING SET) : NULL REMARK 3 BIN R VALUE (WORKING SET) : NULL REMARK 3 BIN FREE R VALUE : NULL REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 BIN FREE R VALUE TEST SET COUNT : NULL REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : NULL REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1069 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 7 REMARK 3 SOLVENT ATOMS : 88 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 54.00 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 ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM LUZZATI PLOT (A) : NULL REMARK 3 ESD FROM SIGMAA (A) : NULL REMARK 3 LOW RESOLUTION CUTOFF (A) : NULL REMARK 3 REMARK 3 CROSS-VALIDATED ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM C-V LUZZATI PLOT (A) : NULL REMARK 3 ESD FROM C-V SIGMAA (A) : NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.010 REMARK 3 BOND ANGLES (DEGREES) : 1.500 REMARK 3 DIHEDRAL ANGLES (DEGREES) : NULL REMARK 3 IMPROPER ANGLES (DEGREES) : NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. RMS SIGMA REMARK 3 MAIN-CHAIN BOND (A**2) : NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE (A**2) : NULL ; NULL REMARK 3 SIDE-CHAIN BOND (A**2) : NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE (A**2) : NULL ; NULL REMARK 3 REMARK 3 NCS MODEL : NULL REMARK 3 REMARK 3 NCS RESTRAINTS. RMS SIGMA/WEIGHT REMARK 3 GROUP 1 POSITIONAL (A) : NULL ; NULL REMARK 3 GROUP 1 B-FACTOR (A**2) : NULL ; NULL REMARK 3 REMARK 3 PARAMETER FILE 1 : NULL REMARK 3 TOPOLOGY FILE 1 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1B1B COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 19-NOV-98. REMARK 100 THE DEPOSITION ID IS D_1000000112. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : NULL REMARK 200 TEMPERATURE (KELVIN) : 100.0 REMARK 200 PH : 7.50 REMARK 200 NUMBER OF CRYSTALS USED : 2 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : SSRL REMARK 200 BEAMLINE : BL7-1 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.008 REMARK 200 MONOCHROMATOR : MIRROR REMARK 200 OPTICS : MIRROR REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : MARRESEARCH REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 9277 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.600 REMARK 200 RESOLUTION RANGE LOW (A) : 8.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 2.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 95.2 REMARK 200 DATA REDUNDANCY : 15.00 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.07000 REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 19.6000 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) : 2.70 REMARK 200 COMPLETENESS FOR SHELL (%) : 93.0 REMARK 200 DATA REDUNDANCY IN SHELL : 10.00 REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : 0.45000 REMARK 200 <I/SIGMA(I)> FOR SHELL : 4.100 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: NULL REMARK 200 STARTING MODEL: AMORE REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 74.98 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 4.92 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PH 7.50 REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 62 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 REMARK 290 5555 Y,-X+Y,Z+2/3 REMARK 290 6555 X-Y,X,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 42.13333 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 21.06667 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 0.00000 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 42.13333 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 21.06667 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 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 LEU A 4 CG CD1 CD2 REMARK 470 GLU A 32 CG CD OE1 OE2 REMARK 470 SER A 42 OG REMARK 470 ARG A 60 CG CD NE CZ NH1 NH2 REMARK 470 HIS A 61 CG ND1 CD2 CE1 NE2 REMARK 470 GLU A 66 CG CD OE1 OE2 REMARK 470 LYS A 67 CG CD CE NZ REMARK 470 ARG A 69 CG CD NE CZ NH1 NH2 REMARK 470 ASN A 121 CG OD1 ND2 REMARK 470 ASN A 122 CG OD1 ND2 REMARK 470 VAL A 136 CG1 CG2 REMARK 470 VAL A 140 CG1 CG2 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 A 429 H1 HOH A 463 1.53 REMARK 500 H1 HOH A 445 O HOH A 449 1.54 REMARK 500 O HOH A 401 H2 HOH A 471 1.56 REMARK 500 H2 HOH A 429 O HOH A 465 1.59 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 HH12 ARG A 103 H1 HOH A 457 4665 1.22 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 3 -14.57 72.39 REMARK 500 LEU A 4 53.51 -110.84 REMARK 500 VAL A 5 -9.70 -52.84 REMARK 500 ARG A 60 -15.18 68.46 REMARK 500 VAL A 89 -72.93 -81.42 REMARK 500 TRP A 94 -30.00 -38.53 REMARK 500 LYS A 118 -70.16 -90.71 REMARK 500 PHE A 128 34.44 -86.01 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 302 ZN REMARK 620 N RES CSSEQI ATOM REMARK 620 1 MET A 10 SD REMARK 620 2 CYS A 102 O 173.4 REMARK 620 3 GLU A 105 OE2 97.3 88.8 REMARK 620 4 HIS A 106 NE2 77.9 100.0 88.5 REMARK 620 N 1 2 3 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 ZN A 301 ZN REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 79 NE2 REMARK 620 2 GLU A 83 OE2 84.6 REMARK 620 3 HIS A 98 ND1 101.0 140.0 REMARK 620 N 1 2 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ZN A 301 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ZN A 302 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 303 DBREF 1B1B A 1 140 UNP P0A672 IDER_MYCTU 1 140 SEQRES 1 A 140 MET ASN GLU LEU VAL ASP THR THR GLU MET TYR LEU ARG SEQRES 2 A 140 THR ILE TYR ASP LEU GLU GLU GLU GLY VAL THR PRO LEU SEQRES 3 A 140 ARG ALA ARG ILE ALA GLU ARG LEU ASP GLN SER GLY PRO SEQRES 4 A 140 THR VAL SER GLN THR VAL SER ARG MET GLU ARG ASP GLY SEQRES 5 A 140 LEU LEU ARG VAL ALA GLY ASP ARG HIS LEU GLU LEU THR SEQRES 6 A 140 GLU LYS GLY ARG ALA LEU ALA ILE ALA VAL MET ARG LYS SEQRES 7 A 140 HIS ARG LEU ALA GLU ARG LEU LEU VAL ASP VAL ILE GLY SEQRES 8 A 140 LEU PRO TRP GLU GLU VAL HIS ALA GLU ALA CYS ARG TRP SEQRES 9 A 140 GLU HIS VAL MET SER GLU ASP VAL GLU ARG ARG LEU VAL SEQRES 10 A 140 LYS VAL LEU ASN ASN PRO THR THR SER PRO PHE GLY ASN SEQRES 11 A 140 PRO ILE PRO GLY LEU VAL GLU LEU GLY VAL HET ZN A 301 1 HET ZN A 302 1 HET SO4 A 303 5 HETNAM ZN ZINC ION HETNAM SO4 SULFATE ION FORMUL 2 ZN 2(ZN 2+) FORMUL 4 SO4 O4 S 2- FORMUL 5 HOH *88(H2 O) HELIX 1 1 ASP A 6 GLU A 21 1 16 HELIX 2 2 LEU A 26 ASP A 35 1 10 HELIX 3 3 SER A 37 ARG A 50 1 14 HELIX 4 4 THR A 65 ASP A 88 1 24 HELIX 5 5 GLU A 96 GLU A 105 1 10 HELIX 6 6 SER A 109 LEU A 120 1 12 HELIX 7 7 GLY A 134 GLY A 139 1 6 SHEET 1 A 2 LEU A 54 VAL A 56 0 SHEET 2 A 2 LEU A 62 LEU A 64 -1 N GLU A 63 O ARG A 55 LINK SD MET A 10 ZN ZN A 302 1555 1555 2.67 LINK NE2 HIS A 79 ZN ZN A 301 1555 1555 2.67 LINK OE2 GLU A 83 ZN ZN A 301 1555 1555 1.80 LINK ND1 HIS A 98 ZN ZN A 301 1555 1555 2.09 LINK O CYS A 102 ZN ZN A 302 1555 1555 1.99 LINK OE2 GLU A 105 ZN ZN A 302 1555 1555 1.83 LINK NE2 HIS A 106 ZN ZN A 302 1555 1555 2.40 SITE 1 AC1 5 HIS A 79 GLU A 83 HIS A 98 SO4 A 303 SITE 2 AC1 5 HOH A 425 SITE 1 AC2 5 GLU A 3 MET A 10 CYS A 102 GLU A 105 SITE 2 AC2 5 HIS A 106 SITE 1 AC3 7 ASP A 17 MET A 76 HIS A 79 ARG A 80 SITE 2 AC3 7 HIS A 98 ASN A 130 ZN A 301 CRYST1 92.600 92.600 63.200 90.00 90.00 120.00 P 62 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 0.010799 0.006235 0.000000 0.00000 SCALE2 0.000000 0.012470 0.000000 0.00000 SCALE3 0.000000 0.000000 0.015823 0.00000