PDB Short entry for 1FXY HEADER HYDROLASE/HYDROLASE INHIBITOR 22-APR-98 1FXY TITLE COAGULATION FACTOR XA-TRYPSIN CHIMERA INHIBITED WITH D-PHE-PRO-ARG- TITLE 2 CHLOROMETHYLKETONE COMPND MOL_ID: 1; COMPND 2 MOLECULE: COAGULATION FACTOR XA-TRYPSIN CHIMERA; COMPND 3 CHAIN: A; COMPND 4 ENGINEERED: YES; COMPND 5 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: HOMO SAPIENS; SOURCE 3 ORGANISM_COMMON: HUMAN; SOURCE 4 ORGANISM_TAXID: 9606; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 7 EXPRESSION_SYSTEM_STRAIN: UT5600 KEYWDS CHIMERA, PROTEASE, CHLOROMETHYLKETONE, HYDROLASE-HYDROLASE INHIBITOR KEYWDS 2 COMPLEX EXPDTA X-RAY DIFFRACTION AUTHOR K.P.HOPFNER,E.KOPETZKI,G.-B.KRESSE,R.HUBER,W.BODE,R.A.ENGH REVDAT 3 13-JUL-11 1FXY 1 VERSN REVDAT 2 24-FEB-09 1FXY 1 VERSN REVDAT 1 17-JUN-98 1FXY 0 JRNL AUTH K.P.HOPFNER,E.KOPETZKI,G.B.KRESSE,W.BODE,R.HUBER,R.A.ENGH JRNL TITL NEW ENZYME LINEAGES BY SUBDOMAIN SHUFFLING. JRNL REF PROC.NATL.ACAD.SCI.USA V. 95 9813 1998 JRNL REFN ISSN 0027-8424 JRNL PMID 9707558 JRNL DOI 10.1073/PNAS.95.17.9813 REMARK 2 REMARK 2 RESOLUTION. 2.15 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : X-PLOR 3.8 REMARK 3 AUTHORS : BRUNGER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.15 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 8.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 2.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : 1000000.000 REMARK 3 DATA CUTOFF LOW (ABS(F)) : 0.0010 REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 90.9 REMARK 3 NUMBER OF REFLECTIONS : 10714 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : FREE R VALUE REMARK 3 FREE R VALUE TEST SET SELECTION : RANDOM REMARK 3 R VALUE (WORKING SET) : 0.180 REMARK 3 FREE R VALUE : 0.245 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 10.000 REMARK 3 FREE R VALUE TEST SET COUNT : NULL 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 : 1730 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 30 REMARK 3 SOLVENT ATOMS : 82 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : NULL 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) : 0.005 REMARK 3 BOND ANGLES (DEGREES) : 1.24 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 : PROTEIN_REP.PARAM REMARK 3 PARAMETER FILE 2 : NULL REMARK 3 PARAMETER FILE 3 : NULL REMARK 3 TOPOLOGY FILE 1 : TOPHCSDX.PRO REMARK 3 TOPOLOGY FILE 2 : NULL REMARK 3 TOPOLOGY FILE 3 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1FXY COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY BNL. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : MAY-95 REMARK 200 TEMPERATURE (KELVIN) : 280 REMARK 200 PH : 7.8 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 RUH2R REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418 REMARK 200 MONOCHROMATOR : GRAPHITE(002) REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : MARRESEARCH REMARK 200 INTENSITY-INTEGRATION SOFTWARE : MOSFLM REMARK 200 DATA SCALING SOFTWARE : CCP4 (AGROVATA, ROTAVATA) REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : NULL REMARK 200 RESOLUTION RANGE HIGH (A) : 2.150 REMARK 200 RESOLUTION RANGE LOW (A) : NULL REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : NULL REMARK 200 DATA REDUNDANCY : NULL REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : NULL REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : NULL REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : NULL REMARK 200 COMPLETENESS FOR SHELL (%) : NULL REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 <I/SIGMA(I)> FOR SHELL : NULL REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: NULL REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: NULL REMARK 200 SOFTWARE USED: X-PLOR 3.8 REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 46.13 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.28 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PROTEIN WAS CRYSTALLIZED FROM 15% PEG REMARK 280 6K, 100 MM HEPES, PH 7.8. 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 32.75500 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 24.46000 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 4 -1.000000 0.000000 0.000000 32.75500 REMARK 290 SMTRY2 4 0.000000 1.000000 0.000000 24.46000 REMARK 290 SMTRY3 4 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 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 BIOMT1 2 -1.000000 0.000000 0.000000 37.87357 REMARK 350 BIOMT2 2 0.000000 1.000000 0.000000 0.00000 REMARK 350 BIOMT3 2 0.000000 0.000000 -1.000000 70.30305 REMARK 475 REMARK 475 ZERO OCCUPANCY RESIDUES REMARK 475 THE FOLLOWING RESIDUES WERE MODELED WITH ZERO OCCUPANCY. REMARK 475 THE LOCATION AND PROPERTIES OF THESE RESIDUES MAY NOT REMARK 475 BE RELIABLE. (M=MODEL NUMBER; RES=RESIDUE NAME; REMARK 475 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE) REMARK 475 M RES C SSEQI REMARK 475 SER A 246 REMARK 480 REMARK 480 ZERO OCCUPANCY ATOM REMARK 480 THE FOLLOWING RESIDUES HAVE ATOMS MODELED WITH ZERO REMARK 480 OCCUPANCY. THE LOCATION AND PROPERTIES OF THESE ATOMS REMARK 480 MAY NOT BE RELIABLE. (M=MODEL NUMBER; RES=RESIDUE NAME; REMARK 480 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE): REMARK 480 M RES C SSEQI ATOMS REMARK 480 LYS A 23 NZ REMARK 480 ASP A 24 CB CG OD1 OD2 REMARK 480 GLU A 36 CB CG CD OE1 OE2 REMARK 480 GLU A 37 CB CG CD OE1 OE2 REMARK 480 ASN A 38 CB CG OD1 ND2 REMARK 480 LYS A 62 CB CG CD CE NZ REMARK 480 ARG A 63 NE CZ NH1 NH2 REMARK 480 ARG A 71 CG CD NE CZ NH1 NH2 REMARK 480 GLU A 74 CG CD OE1 OE2 REMARK 480 GLN A 75 CG CD OE1 NE2 REMARK 480 GLU A 77 CB CG CD OE1 OE2 REMARK 480 LYS A 90 NZ REMARK 480 LYS A 96 CE NZ REMARK 480 LYS A 109 CE NZ REMARK 480 THR A 125 CG2 REMARK 480 LYS A 135 NZ REMARK 480 ASP A 153 OD1 OD2 REMARK 480 GLU A 154 CG CD OE1 OE2 REMARK 480 LYS A 167 CE NZ REMARK 480 GLU A 186 CG CD OE1 OE2 REMARK 480 LYS A 188 NZ REMARK 480 ASN A 202 CG OD1 ND2 REMARK 480 ASP A 217 CB REMARK 480 LYS A 236 CE NZ 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 SER A 214 -69.23 -123.22 REMARK 500 REMARK 500 REMARK: NULL REMARK 600 REMARK 600 HETEROGEN REMARK 600 THE UNBOUND FORM OF THE INHIBITOR IS D-PHE-PRO-ARG- REMARK 600 CHLOROMETHYLKETONE. UPON REACTION WITH PROTEIN IT FORMS TWO REMARK 600 COVALENT BONDS: 1) A COVALENT BOND TO SER 195 FORMING A HEMIKETAL REMARK 600 AR7 AND 2) A COVALENT BOND TO NE2 OF HIS 57 REMARK 630 REMARK 630 MOLECULE TYPE: NULL REMARK 630 MOLECULE NAME: D-PHENYLALANYL-N-[(2S,3S)-6-{[AMINO(IMINIO)METHYL] REMARK 630 AMINO}-1-CHLORO-2-HYDROXYHEXAN-3-YL]-L-PROLINAMIDE REMARK 630 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 630 SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.) REMARK 630 REMARK 630 M RES C SSSEQI REMARK 630 0G6 A 1 REMARK 630 SOURCE: NULL REMARK 630 TAXONOMY: NULL REMARK 630 SUBCOMP: DPN PRO AR7 0QE REMARK 630 DETAILS: NULL REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE 0G6 A 1 REMARK 999 REMARK 999 SEQUENCE REMARK 999 RESIDUES ARE NUMBERED ACCORDING TO THE CHYMOTRYPSIN REMARK 999 NUMBERING SYSTEM. THE MOLECULE IS A CHIMERIC CONSTRUCT REMARK 999 COMPOSED OF RESIDUES 16 - 121 FROM HUMAN COAGULATION FACTOR REMARK 999 XA AND RESIDUES 122 - 246 FROM HUMAN TRYPSIN I. THE REMARK 999 N-TERMINAL 15 RESIDUES WERE CLEAVED OFF PROTEOLYTICALLY. DBREF 1FXY A 122 246 UNP P07477 TRY1_HUMAN 127 247 SEQRES 1 A 228 ILE VAL GLY GLY TYR ASN CYS LYS ASP GLY GLU VAL PRO SEQRES 2 A 228 TRP GLN ALA LEU LEU ILE ASN GLU GLU ASN GLU GLY PHE SEQRES 3 A 228 CYS GLY GLY THR ILE LEU SER GLU PHE TYR ILE LEU THR SEQRES 4 A 228 ALA ALA HIS CYS LEU TYR GLN ALA LYS ARG PHE LYS VAL SEQRES 5 A 228 ARG VAL GLY ASP ARG ASN THR GLU GLN GLU GLU GLY GLY SEQRES 6 A 228 GLU ALA VAL HIS GLU VAL GLU VAL VAL ILE LYS HIS ASN SEQRES 7 A 228 ARG PHE THR LYS GLU THR TYR ASP PHE ASP ILE ALA VAL SEQRES 8 A 228 LEU ARG LEU LYS THR PRO ILE THR PHE ARG MET ASN VAL SEQRES 9 A 228 ALA PRO ALA SER LEU PRO THR ALA PRO PRO ALA THR GLY SEQRES 10 A 228 THR LYS CYS LEU ILE SER GLY TRP GLY ASN THR ALA SER SEQRES 11 A 228 SER GLY ALA ASP TYR PRO ASP GLU LEU GLN CYS LEU ASP SEQRES 12 A 228 ALA PRO VAL LEU SER GLN ALA LYS CYS GLU ALA SER TYR SEQRES 13 A 228 PRO GLY LYS ILE THR SER ASN MET PHE CYS VAL GLY PHE SEQRES 14 A 228 LEU GLU GLY GLY LYS ASP SER CYS GLN GLY ASP SER GLY SEQRES 15 A 228 GLY PRO VAL VAL CYS ASN GLY GLN LEU GLN GLY VAL VAL SEQRES 16 A 228 SER TRP GLY ASP GLY CYS ALA GLN LYS ASN LYS PRO GLY SEQRES 17 A 228 VAL TYR THR LYS VAL TYR ASN TYR VAL LYS TRP ILE LYS SEQRES 18 A 228 ASN THR ILE ALA ALA ASN SER HET 0G6 A 1 30 HETNAM 0G6 D-PHENYLALANYL-N-[(2S,3S)-6-{[AMINO(IMINIO) HETNAM 2 0G6 METHYL]AMINO}-1-CHLORO-2-HYDROXYHEXAN-3-YL]-L- HETNAM 3 0G6 PROLINAMIDE HETSYN 0G6 PPACK FORMUL 2 0G6 C21 H34 CL N6 O3 1+ FORMUL 3 HOH *82(H2 O) HELIX 1 1 ALA A 56 CYS A 58 5 3 HELIX 2 2 GLN A 165 SER A 171 1 7 HELIX 3 3 VAL A 231 ALA A 244 5 14 SHEET 1 A 4 GLU A 80 GLU A 84 0 SHEET 2 A 4 LYS A 65 GLY A 69 -1 N VAL A 68 O ALA A 81 SHEET 3 A 4 GLN A 30 ILE A 34 -1 N ILE A 34 O LYS A 65 SHEET 4 A 4 GLY A 40 THR A 45 -1 N GLY A 44 O ALA A 31 SHEET 1 B 3 TYR A 51 THR A 54 0 SHEET 2 B 3 ALA A 104 LEU A 108 -1 N LEU A 106 O ILE A 52 SHEET 3 B 3 VAL A 85 LYS A 90 -1 N ILE A 89 O VAL A 105 SHEET 1 C 6 GLN A 156 PRO A 161 0 SHEET 2 C 6 LYS A 135 GLY A 140 -1 N GLY A 140 O GLN A 156 SHEET 3 C 6 PRO A 198 CYS A 201 -1 N VAL A 200 O LEU A 137 SHEET 4 C 6 GLN A 204 TRP A 215 -1 N GLY A 211 O VAL A 199 SHEET 5 C 6 GLY A 226 LYS A 230 -1 N THR A 229 O VAL A 212 SHEET 6 C 6 MET A 180 VAL A 183 -1 N VAL A 183 O GLY A 226 SSBOND 1 CYS A 22 CYS A 157 1555 1555 2.02 SSBOND 2 CYS A 42 CYS A 58 1555 1555 2.03 SSBOND 3 CYS A 136 CYS A 201 1555 1555 2.03 SSBOND 4 CYS A 168 CYS A 182 1555 1555 2.03 SSBOND 5 CYS A 191 CYS A 220 1555 1555 2.03 LINK OG SER A 195 C2 0G6 A 1 1555 1555 1.41 LINK NE2 HIS A 57 C3 0G6 A 1 1555 1555 1.50 SITE 1 AC1 22 HIS A 57 GLN A 61 GLN A 75 GLU A 76 SITE 2 AC1 22 TYR A 99 MET A 116 ASN A 117 LYS A 175 SITE 3 AC1 22 ASP A 189 SER A 190 CYS A 191 GLN A 192 SITE 4 AC1 22 GLY A 193 SER A 195 SER A 214 TRP A 215 SITE 5 AC1 22 GLY A 216 GLY A 219 GLY A 226 HOH A 247 SITE 6 AC1 22 HOH A 273 HOH A 327 CRYST1 65.510 48.920 75.540 90.00 111.46 90.00 C 1 2 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 0.015265 0.000000 0.006001 0.00000 SCALE2 0.000000 0.020442 0.000000 0.00000 SCALE3 0.000000 0.000000 0.014224 0.00000