HEADER TRANSFERASE 01-MAY-00 1EX8 TITLE CRYSTAL STRUCTURE OF 6-HYDROXYMETHYL-7,8-DIHYDROPTERIN TITLE 2 PYROPHOSPHOKINASE COMPLEXED WITH HP4A, THE TWO-SUBSTRATE-MIMICKING TITLE 3 INHIBITOR COMPND MOL_ID: 1; COMPND 2 MOLECULE: 6-HYDROXYMETHYL-7,8-DIHYDROPTERIN PYROPHOSPHOKINASE; COMPND 3 CHAIN: A; COMPND 4 EC: 2.7.6.3; COMPND 5 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI; SOURCE 3 ORGANISM_TAXID: 562; SOURCE 4 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3); SOURCE 5 EXPRESSION_SYSTEM_TAXID: 469008; SOURCE 6 EXPRESSION_SYSTEM_STRAIN: BL21(DE3); SOURCE 7 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 8 EXPRESSION_SYSTEM_PLASMID: PET17B KEYWDS PYROPHOSPHOKINASE, PYROPHOSPHORYL TRANSFER, FOLATE, HPPK, PTERIN, KEYWDS 2 ATP, BISUBSTRATE-MIMICKING INHIBITOR, ANTIMICROBIAL AGENT, DRUG KEYWDS 3 DESIGN, SUBSTRATE SPECIFICITY, ACTIVE-SITE ARCHITECTURE, TRANSFERASE EXPDTA X-RAY DIFFRACTION AUTHOR J.BLASZCZYK,X.JI REVDAT 4 30-AUG-23 1EX8 1 AUTHOR JRNL REVDAT 3 09-AUG-23 1EX8 1 REMARK LINK REVDAT 2 24-FEB-09 1EX8 1 VERSN REVDAT 1 01-MAY-01 1EX8 0 JRNL AUTH G.SHI,J.BLASZCZYK,X.JI,H.YAN JRNL TITL BISUBSTRATE ANALOGUE INHIBITORS OF JRNL TITL 2 6-HYDROXYMETHYL-7,8-DIHYDROPTERIN PYROPHOSPHOKINASE: JRNL TITL 3 SYNTHESIS AND BIOCHEMICAL AND CRYSTALLOGRAPHIC STUDIES. JRNL REF J.MED.CHEM. V. 44 1364 2001 JRNL REFN ISSN 0022-2623 JRNL PMID 11311059 JRNL DOI 10.1021/JM0004493 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH B.XIAO,G.SHI,X.CHEN,H.YAN,X.JI REMARK 1 TITL CRYSTAL STRUCTURE OF 6-HYDROXYMETHYL-7,8-DIHYDROPTERIN REMARK 1 TITL 2 PYROPHOSPHOKINASE, A POTENTIAL TARGET FOR THE DEVELOPMENT OF REMARK 1 TITL 3 NOVEL ANTIMICROBIAL AGENTS REMARK 1 REF STRUCTURE V. 7 489 1999 REMARK 1 REFN ISSN 0969-2126 REMARK 1 DOI 10.1016/S0969-2126(99)80065-3 REMARK 2 REMARK 2 RESOLUTION. 1.85 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : SHELXL-97 REMARK 3 AUTHORS : G.M.SHELDRICK REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.85 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 40.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 4.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 85.4 REMARK 3 CROSS-VALIDATION METHOD : FREE R REMARK 3 FREE R VALUE TEST SET SELECTION : RANDOM REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT (NO CUTOFF). REMARK 3 R VALUE (WORKING + TEST SET, NO CUTOFF) : NULL REMARK 3 R VALUE (WORKING SET, NO CUTOFF) : 0.211 REMARK 3 FREE R VALUE (NO CUTOFF) : 0.242 REMARK 3 FREE R VALUE TEST SET SIZE (%, NO CUTOFF) : 5.106 REMARK 3 FREE R VALUE TEST SET COUNT (NO CUTOFF) : 614 REMARK 3 TOTAL NUMBER OF REFLECTIONS (NO CUTOFF) : 12025 REMARK 3 REMARK 3 FIT/AGREEMENT OF MODEL FOR DATA WITH F>4SIG(F). REMARK 3 R VALUE (WORKING + TEST SET, F>4SIG(F)) : NULL REMARK 3 R VALUE (WORKING SET, F>4SIG(F)) : 0.185 REMARK 3 FREE R VALUE (F>4SIG(F)) : 0.217 REMARK 3 FREE R VALUE TEST SET SIZE (%, F>4SIG(F)) : 5.124 REMARK 3 FREE R VALUE TEST SET COUNT (F>4SIG(F)) : 480 REMARK 3 TOTAL NUMBER OF REFLECTIONS (F>4SIG(F)) : 9368 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1267 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 50 REMARK 3 SOLVENT ATOMS : 167 REMARK 3 REMARK 3 MODEL REFINEMENT. REMARK 3 OCCUPANCY SUM OF NON-HYDROGEN ATOMS : 1478.0 REMARK 3 OCCUPANCY SUM OF HYDROGEN ATOMS : 0.00 REMARK 3 NUMBER OF DISCRETELY DISORDERED RESIDUES : NULL REMARK 3 NUMBER OF LEAST-SQUARES PARAMETERS : 5668 REMARK 3 NUMBER OF RESTRAINTS : 5447 REMARK 3 REMARK 3 RMS DEVIATIONS FROM RESTRAINT TARGET VALUES. REMARK 3 BOND LENGTHS (A) : 0.006 REMARK 3 ANGLE DISTANCES (A) : 0.021 REMARK 3 SIMILAR DISTANCES (NO TARGET VALUES) (A) : 0.000 REMARK 3 DISTANCES FROM RESTRAINT PLANES (A) : 0.026 REMARK 3 ZERO CHIRAL VOLUMES (A**3) : 0.028 REMARK 3 NON-ZERO CHIRAL VOLUMES (A**3) : 0.032 REMARK 3 ANTI-BUMPING DISTANCE RESTRAINTS (A) : 0.012 REMARK 3 RIGID-BOND ADP COMPONENTS (A**2) : 0.000 REMARK 3 SIMILAR ADP COMPONENTS (A**2) : 0.081 REMARK 3 APPROXIMATELY ISOTROPIC ADPS (A**2) : 0.000 REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED: MOEWS & KRETSINGER, J.MOL.BIOL.91(1975)201-228 REMARK 3 REMARK 3 STEREOCHEMISTRY TARGET VALUES : ENGH AND HUBER REMARK 3 SPECIAL CASE: NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: LEAST-SQUARES REFINEMENT USING THE REMARK 3 KONNERT-HENDRICKSON CONJUGATE-GRADIENT ALGORITHM REMARK 4 REMARK 4 1EX8 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 09-MAY-00. REMARK 100 THE DEPOSITION ID IS D_1000010988. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 30-NOV-99 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 5.5 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 RU200 REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.54178 REMARK 200 MONOCHROMATOR : NULL 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 : 12732 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.850 REMARK 200 RESOLUTION RANGE LOW (A) : 40.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.050 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 89.5 REMARK 200 DATA REDUNDANCY : 3.100 REMARK 200 R MERGE (I) : 0.15400 REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 5.9000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.85 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.92 REMARK 200 COMPLETENESS FOR SHELL (%) : 77.6 REMARK 200 DATA REDUNDANCY IN SHELL : 2.80 REMARK 200 R MERGE FOR SHELL (I) : 0.33800 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 <I/SIGMA(I)> FOR SHELL : 2.056 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: AMORE REMARK 200 STARTING MODEL: 1EQO REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 39.80 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.13 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PEG 4000, MAGNESIUM CHLORIDE, TRIS REMARK 280 -HCL, GLYCEROL, ACETATE, PH 5.5, VAPOR DIFFUSION, HANGING DROP, REMARK 280 TEMPERATURE 292.0K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 21 21 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X+1/2,-Y,Z+1/2 REMARK 290 3555 -X,Y+1/2,-Z+1/2 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 19.02650 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 33.55300 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 30.92850 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 33.55300 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 19.02650 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 30.92850 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: 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 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: COVALENT BOND ANGLES REMARK 500 REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 STANDARD TABLE: REMARK 500 FORMAT: (10X,I3,1X,A3,1X,A1,I4,A1,3(1X,A4,2X),12X,F5.1) REMARK 500 REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999 REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996 REMARK 500 REMARK 500 M RES CSSEQI ATM1 ATM2 ATM3 REMARK 500 ARG A 150 NE - CZ - NH2 ANGL. DEV. = -3.2 DEGREES 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 SER A 13 80.36 62.68 REMARK 500 ALA A 86 -88.40 -58.67 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 161 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 A4P A 171 O2D REMARK 620 2 A4P A 171 O2B 65.4 REMARK 620 3 A4P A 171 O1A 144.0 81.0 REMARK 620 4 A4P A 171 O1G 75.0 79.0 86.5 REMARK 620 5 HOH A 201 O 87.3 87.5 104.7 161.0 REMARK 620 6 HOH A 202 O 112.0 176.7 102.0 102.4 90.3 REMARK 620 N 1 2 3 4 5 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG A 161 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CL A 162 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE A4P A 171 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1HKA RELATED DB: PDB REMARK 900 1HKA IS THE CRYSTAL STRUCTURE OF UNLIGANDED HPPK FROM E. COLI. REMARK 900 RELATED ID: 1EQM RELATED DB: PDB REMARK 900 1EQM IS THE CRYSTAL STRUCTURE OF BINARY COMPLEX OF HPPK FROM E. REMARK 900 COLI WITH MGADP. REMARK 900 RELATED ID: 1EQ0 RELATED DB: PDB REMARK 900 1EQ0 IS THE SOLUTION STRUCTURE OF BINARY COMPLEX OF HPPK FROM E. REMARK 900 COLI WITH MGAMPPCP. REMARK 900 RELATED ID: 1EQO RELATED DB: PDB REMARK 900 1EQO IS THE CRYSTAL STRUCTURE OF TERNARY COMPLEX OF HPPK FROM E. REMARK 900 COLI WITH MGAMPCPP AND 6-HYDROXYMETHYL-7,8-DIHYDROPTERIN. REMARK 900 RELATED ID: 1CBK RELATED DB: PDB REMARK 900 1CBK IS THE CRYSTAL STRUCTURE OF BINARY COMPLEX OF HPPK FROM REMARK 900 HAEMOPHILUS INFLUENZAE WITH A 6-HYDROXYMETHYL-7,8-DIHYDROPTERIN REMARK 900 ANALOG. REMARK 900 RELATED ID: 1DY3 RELATED DB: PDB REMARK 900 1DY3 IS THE CRYSTAL STRUCTURE OF TERNARY COMPLEX OF HPPK FROM E. REMARK 900 COLI WITH MGATP AND A 6-HYDROXYMETHYL-7,8-DIHYDROPTERIN ANALOG. DBREF 1EX8 A 1 158 UNP P26281 HPPK_ECOLI 1 158 SEQRES 1 A 158 THR VAL ALA TYR ILE ALA ILE GLY SER ASN LEU ALA SER SEQRES 2 A 158 PRO LEU GLU GLN VAL ASN ALA ALA LEU LYS ALA LEU GLY SEQRES 3 A 158 ASP ILE PRO GLU SER HIS ILE LEU THR VAL SER SER PHE SEQRES 4 A 158 TYR ARG THR PRO PRO LEU GLY PRO GLN ASP GLN PRO ASP SEQRES 5 A 158 TYR LEU ASN ALA ALA VAL ALA LEU GLU THR SER LEU ALA SEQRES 6 A 158 PRO GLU GLU LEU LEU ASN HIS THR GLN ARG ILE GLU LEU SEQRES 7 A 158 GLN GLN GLY ARG VAL ARG LYS ALA GLU ARG TRP GLY PRO SEQRES 8 A 158 ARG THR LEU ASP LEU ASP ILE MET LEU PHE GLY ASN GLU SEQRES 9 A 158 VAL ILE ASN THR GLU ARG LEU THR VAL PRO HIS TYR ASP SEQRES 10 A 158 MET LYS ASN ARG GLY PHE MET LEU TRP PRO LEU PHE GLU SEQRES 11 A 158 ILE ALA PRO GLU LEU VAL PHE PRO ASP GLY GLU MET LEU SEQRES 12 A 158 ARG GLN ILE LEU HIS THR ARG ALA PHE ASP LYS LEU ASN SEQRES 13 A 158 LYS TRP HET MG A 161 1 HET CL A 162 1 HET A4P A 171 48 HETNAM MG MAGNESIUM ION HETNAM CL CHLORIDE ION HETNAM A4P 6-(ADENOSINE TETRAPHOSPHATE-METHYL)-7,8-DIHYDROPTERIN FORMUL 2 MG MG 2+ FORMUL 3 CL CL 1- FORMUL 4 A4P C17 H24 N10 O17 P4 FORMUL 5 HOH *167(H2 O) HELIX 1 1 SER A 13 ASP A 27 1 15 HELIX 2 2 ALA A 65 GLN A 80 1 16 HELIX 3 3 ASP A 117 ASN A 120 5 4 HELIX 4 4 ARG A 121 ALA A 132 1 12 HELIX 5 5 MET A 142 LEU A 147 1 6 SHEET 1 A 4 ASP A 95 PHE A 101 0 SHEET 2 A 4 VAL A 2 SER A 9 -1 N TYR A 4 O LEU A 100 SHEET 3 A 4 TYR A 53 THR A 62 -1 N LEU A 54 O SER A 9 SHEET 4 A 4 SER A 31 VAL A 36 -1 O HIS A 32 N GLU A 61 SHEET 1 B 5 ASP A 95 PHE A 101 0 SHEET 2 B 5 VAL A 2 SER A 9 -1 N TYR A 4 O LEU A 100 SHEET 3 B 5 TYR A 53 THR A 62 -1 N LEU A 54 O SER A 9 SHEET 4 B 5 TYR A 40 THR A 42 -1 O TYR A 40 N ASN A 55 SHEET 5 B 5 ASN A 156 LYS A 157 -1 O ASN A 156 N ARG A 41 SHEET 1 C 2 ILE A 106 ASN A 107 0 SHEET 2 C 2 THR A 112 VAL A 113 -1 N VAL A 113 O ILE A 106 LINK MG MG A 161 O2D A4P A 171 1555 1555 2.03 LINK MG MG A 161 O2B A4P A 171 1555 1555 2.13 LINK MG MG A 161 O1A A4P A 171 1555 1555 1.84 LINK MG MG A 161 O1G A4P A 171 1555 1555 2.19 LINK MG MG A 161 O HOH A 201 1555 1555 1.82 LINK MG MG A 161 O HOH A 202 1555 1555 1.98 CISPEP 1 VAL A 113 PRO A 114 0 -0.13 SITE 1 AC1 4 ASP A 97 A4P A 171 HOH A 201 HOH A 202 SITE 1 AC2 4 LYS A 119 PHE A 137 PRO A 138 ASP A 139 SITE 1 AC3 32 THR A 42 PRO A 43 LEU A 45 TYR A 53 SITE 2 AC3 32 ASN A 55 GLN A 74 ARG A 82 ARG A 84 SITE 3 AC3 32 ARG A 88 TRP A 89 ARG A 92 ASP A 97 SITE 4 AC3 32 ILE A 98 ARG A 110 LEU A 111 THR A 112 SITE 5 AC3 32 VAL A 113 HIS A 115 ARG A 121 PHE A 123 SITE 6 AC3 32 MG A 161 HOH A 201 HOH A 202 HOH A 218 SITE 7 AC3 32 HOH A 236 HOH A 267 HOH A 279 HOH A 291 SITE 8 AC3 32 HOH A 298 HOH A 304 HOH A 312 HOH A 352 CRYST1 38.053 61.857 67.106 90.00 90.00 90.00 P 21 21 21 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 0.026279 0.000000 0.000000 0.00000 SCALE2 0.000000 0.016166 0.000000 0.00000 SCALE3 0.000000 0.000000 0.014902 0.00000