PDB Short entry for 1RX7 HEADER OXIDOREDUCTASE 25-OCT-96 1RX7 TITLE STRUCTURE OF DIHYDROFOLATE REDUCTASE COMPLEXED WITH FOLATE COMPND MOL_ID: 1; COMPND 2 MOLECULE: DIHYDROFOLATE REDUCTASE; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: DHFR; COMPND 5 EC: 1.5.1.3; COMPND 6 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI; SOURCE 3 ORGANISM_TAXID: 562; SOURCE 4 STRAIN: RT500; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 7 EXPRESSION_SYSTEM_PLASMID: PRWA-1 KEYWDS OXIDOREDUCTASE, NADP, TRIMETHOPRIM RESISTANCE, METHOTREXATE KEYWDS 2 RESISTANCE, ONE-CARBON METABOLISM EXPDTA X-RAY DIFFRACTION AUTHOR M.R.SAWAYA REVDAT 3 09-AUG-23 1RX7 1 REMARK SEQADV REVDAT 2 24-FEB-09 1RX7 1 VERSN REVDAT 1 12-MAR-97 1RX7 0 JRNL AUTH M.R.SAWAYA,J.KRAUT JRNL TITL LOOP AND SUBDOMAIN MOVEMENTS IN THE MECHANISM OF ESCHERICHIA JRNL TITL 2 COLI DIHYDROFOLATE REDUCTASE: CRYSTALLOGRAPHIC EVIDENCE. JRNL REF BIOCHEMISTRY V. 36 586 1997 JRNL REFN ISSN 0006-2960 JRNL PMID 9012674 JRNL DOI 10.1021/BI962337C REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH V.M.REYES,M.R.SAWAYA,K.A.BROWN,J.KRAUT REMARK 1 TITL ISOMORPHOUS CRYSTAL STRUCTURES OF ESCHERICHIA COLI REMARK 1 TITL 2 DIHYDROFOLATE REDUCTASE COMPLEXED WITH FOLATE, REMARK 1 TITL 3 5-DEAZAFOLATE, AND 5,10-DIDEAZATETRAHYDROFOLATE: MECHANISTIC REMARK 1 TITL 4 IMPLICATIONS REMARK 1 REF BIOCHEMISTRY V. 34 2710 1995 REMARK 1 REFN ISSN 0006-2960 REMARK 1 REFERENCE 2 REMARK 1 AUTH C.BYSTROFF,J.KRAUT REMARK 1 TITL CRYSTAL STRUCTURE OF UNLIGANDED ESCHERICHIA COLI REMARK 1 TITL 2 DIHYDROFOLATE REDUCTASE. LIGAND-INDUCED CONFORMATIONAL REMARK 1 TITL 3 CHANGES AND COOPERATIVITY IN BINDING REMARK 1 REF BIOCHEMISTRY V. 30 2227 1991 REMARK 1 REFN ISSN 0006-2960 REMARK 1 REFERENCE 3 REMARK 1 AUTH C.BYSTROFF,S.J.OATLEY,J.KRAUT REMARK 1 TITL CRYSTAL STRUCTURES OF ESCHERICHIA COLI DIHYDROFOLATE REMARK 1 TITL 2 REDUCTASE: THE NADP+ HOLOENZYME AND THE FOLATE.NADP+ TERNARY REMARK 1 TITL 3 COMPLEX. SUBSTRATE BINDING AND A MODEL FOR THE TRANSITION REMARK 1 TITL 4 STATE REMARK 1 REF BIOCHEMISTRY V. 29 3263 1990 REMARK 1 REFN ISSN 0006-2960 REMARK 2 REMARK 2 RESOLUTION. 2.30 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : TNT 5D REMARK 3 AUTHORS : TRONRUD,TEN EYCK,MATTHEWS REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.30 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 20.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 87.0 REMARK 3 NUMBER OF REFLECTIONS : 6569 REMARK 3 REMARK 3 USING DATA ABOVE SIGMA CUTOFF. REMARK 3 CROSS-VALIDATION METHOD : NULL REMARK 3 FREE R VALUE TEST SET SELECTION : NULL REMARK 3 R VALUE (WORKING + TEST SET) : NULL REMARK 3 R VALUE (WORKING SET) : 0.181 REMARK 3 FREE R VALUE : NULL REMARK 3 FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 FREE R VALUE TEST SET COUNT : NULL REMARK 3 REMARK 3 USING ALL DATA, NO SIGMA CUTOFF. REMARK 3 R VALUE (WORKING + TEST SET, NO CUTOFF) : NULL REMARK 3 R VALUE (WORKING SET, NO CUTOFF) : 0.1810 REMARK 3 FREE R VALUE (NO CUTOFF) : NULL REMARK 3 FREE R VALUE TEST SET SIZE (%, NO CUTOFF) : NULL REMARK 3 FREE R VALUE TEST SET COUNT (NO CUTOFF) : NULL REMARK 3 TOTAL NUMBER OF REFLECTIONS (NO CUTOFF) : NULL REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1268 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 32 REMARK 3 SOLVENT ATOMS : 23 REMARK 3 REMARK 3 WILSON B VALUE (FROM FCALC, A**2) : NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. RMS WEIGHT COUNT REMARK 3 BOND LENGTHS (A) : 0.022 ; 0.020 ; 1327 REMARK 3 BOND ANGLES (DEGREES) : 2.980 ; 3.000 ; 1796 REMARK 3 TORSION ANGLES (DEGREES) : 25.000; NULL ; 781 REMARK 3 PSEUDOROTATION ANGLES (DEGREES) : NULL ; NULL ; NULL REMARK 3 TRIGONAL CARBON PLANES (A) : 0.018 ; 0.020 ; 36 REMARK 3 GENERAL PLANES (A) : 0.006 ; 0.020 ; 190 REMARK 3 ISOTROPIC THERMAL FACTORS (A**2) : 6.000 ; 6.000 ; 1327 REMARK 3 NON-BONDED CONTACTS (A) : 0.017 ; 0.020 ; 41 REMARK 3 REMARK 3 INCORRECT CHIRAL-CENTERS (COUNT) : NULL REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED : MOEWS AND KRETSINGER REMARK 3 KSOL : 0.85 REMARK 3 BSOL : 227.5 REMARK 3 REMARK 3 RESTRAINT LIBRARIES. REMARK 3 STEREOCHEMISTRY : TNT REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1RX7 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY BNL. REMARK 100 THE DEPOSITION ID IS D_1000176260. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : JUN-95 REMARK 200 TEMPERATURE (KELVIN) : 293 REMARK 200 PH : 6.5 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 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 : AREA DETECTOR REMARK 200 DETECTOR MANUFACTURER : XUONG-HAMLIN MULTIWIRE REMARK 200 INTENSITY-INTEGRATION SOFTWARE : UCSD REMARK 200 DATA SCALING SOFTWARE : UCSD REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 6569 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.300 REMARK 200 RESOLUTION RANGE LOW (A) : 100.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 87.0 REMARK 200 DATA REDUNDANCY : 2.100 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.07800 REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 8.3000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.30 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.48 REMARK 200 COMPLETENESS FOR SHELL (%) : 81.0 REMARK 200 DATA REDUNDANCY IN SHELL : 1.40 REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : 0.17500 REMARK 200 <I/SIGMA(I)> FOR SHELL : 2.100 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: NULL REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: MERLOT REMARK 200 STARTING MODEL: PDB ENTRY 1RA2 REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 42.80 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.18 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PH 6.5 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 17.49500 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 50.56900 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 22.65400 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 50.56900 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 17.49500 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 22.65400 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 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 GLU A 118 CD OE1 OE2 REMARK 480 GLU A 129 CD OE1 OE2 REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: COVALENT BOND LENGTHS 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,2(A3,1X,A1,I4,A1,1X,A4,3X),1X,F6.3) 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 RES CSSEQI ATM2 DEVIATION REMARK 500 GLU A 80 CD GLU A 80 OE1 0.070 REMARK 500 GLU A 101 CD GLU A 101 OE2 0.077 REMARK 500 GLU A 120 CD GLU A 120 OE2 0.077 REMARK 500 GLU A 139 CD GLU A 139 OE1 0.073 REMARK 500 GLU A 154 CD GLU A 154 OE1 0.086 REMARK 500 REMARK 500 REMARK: NULL 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 ALA A 6 N - CA - CB ANGL. DEV. = -9.4 DEGREES REMARK 500 ASP A 11 CB - CG - OD1 ANGL. DEV. = 6.1 DEGREES REMARK 500 ASP A 11 CB - CG - OD2 ANGL. DEV. = -9.2 DEGREES REMARK 500 ARG A 12 NE - CZ - NH1 ANGL. DEV. = 4.0 DEGREES REMARK 500 PRO A 21 C - N - CA ANGL. DEV. = 11.6 DEGREES REMARK 500 PRO A 21 C - N - CD ANGL. DEV. = -16.6 DEGREES REMARK 500 ARG A 33 NE - CZ - NH1 ANGL. DEV. = 3.7 DEGREES REMARK 500 ARG A 57 NE - CZ - NH1 ANGL. DEV. = 4.5 DEGREES REMARK 500 ASP A 69 CB - CG - OD1 ANGL. DEV. = 7.8 DEGREES REMARK 500 ASP A 69 CB - CG - OD2 ANGL. DEV. = -5.8 DEGREES REMARK 500 ASP A 70 CB - CG - OD1 ANGL. DEV. = 5.5 DEGREES REMARK 500 ASP A 70 CB - CG - OD2 ANGL. DEV. = -6.0 DEGREES REMARK 500 ARG A 71 NE - CZ - NH1 ANGL. DEV. = 4.1 DEGREES REMARK 500 ARG A 71 NE - CZ - NH2 ANGL. DEV. = -5.4 DEGREES REMARK 500 ASP A 87 CB - CG - OD1 ANGL. DEV. = -7.1 DEGREES REMARK 500 ASP A 87 CB - CG - OD2 ANGL. DEV. = 5.4 DEGREES REMARK 500 VAL A 99 CA - CB - CG2 ANGL. DEV. = -10.6 DEGREES REMARK 500 ASP A 122 N - CA - CB ANGL. DEV. = -13.9 DEGREES REMARK 500 ASP A 122 CB - CG - OD2 ANGL. DEV. = -6.4 DEGREES REMARK 500 ASP A 132 CB - CG - OD1 ANGL. DEV. = 6.9 DEGREES REMARK 500 ASP A 132 CB - CG - OD2 ANGL. DEV. = -8.8 DEGREES REMARK 500 ASP A 144 CB - CG - OD2 ANGL. DEV. = -6.7 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 ARG A 12 10.09 55.34 REMARK 500 MET A 20 85.09 -40.96 REMARK 500 ASP A 69 114.11 -166.42 REMARK 500 PRO A 105 -6.91 -58.73 REMARK 500 ASP A 116 81.70 -66.80 REMARK 500 ASP A 122 -71.32 -69.18 REMARK 500 GLU A 139 114.31 -170.05 REMARK 500 REMARK 500 REMARK: NULL REMARK 615 REMARK 615 ZERO OCCUPANCY ATOM REMARK 615 THE FOLLOWING RESIDUES HAVE ATOMS MODELED WITH ZERO REMARK 615 OCCUPANCY. THE LOCATION AND PROPERTIES OF THESE ATOMS REMARK 615 MAY NOT BE RELIABLE. (M=MODEL NUMBER; RES=RESIDUE NAME; REMARK 615 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE): REMARK 615 M RES C SSEQI REMARK 615 FOL A 161 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE FOL A 161 DBREF 1RX7 A 1 159 UNP P0ABQ4 DYR_ECOLI 1 159 SEQADV 1RX7 ASP A 37 UNP P0ABQ4 ASN 37 CONFLICT SEQRES 1 A 159 MET ILE SER LEU ILE ALA ALA LEU ALA VAL ASP ARG VAL SEQRES 2 A 159 ILE GLY MET GLU ASN ALA MET PRO TRP ASN LEU PRO ALA SEQRES 3 A 159 ASP LEU ALA TRP PHE LYS ARG ASN THR LEU ASP LYS PRO SEQRES 4 A 159 VAL ILE MET GLY ARG HIS THR TRP GLU SER ILE GLY ARG SEQRES 5 A 159 PRO LEU PRO GLY ARG LYS ASN ILE ILE LEU SER SER GLN SEQRES 6 A 159 PRO GLY THR ASP ASP ARG VAL THR TRP VAL LYS SER VAL SEQRES 7 A 159 ASP GLU ALA ILE ALA ALA CYS GLY ASP VAL PRO GLU ILE SEQRES 8 A 159 MET VAL ILE GLY GLY GLY ARG VAL TYR GLU GLN PHE LEU SEQRES 9 A 159 PRO LYS ALA GLN LYS LEU TYR LEU THR HIS ILE ASP ALA SEQRES 10 A 159 GLU VAL GLU GLY ASP THR HIS PHE PRO ASP TYR GLU PRO SEQRES 11 A 159 ASP ASP TRP GLU SER VAL PHE SER GLU PHE HIS ASP ALA SEQRES 12 A 159 ASP ALA GLN ASN SER HIS SER TYR CYS PHE GLU ILE LEU SEQRES 13 A 159 GLU ARG ARG HET FOL A 161 32 HETNAM FOL FOLIC ACID FORMUL 2 FOL C19 H19 N7 O6 FORMUL 3 HOH *23(H2 O) HELIX 1 2 PRO A 25 THR A 35 1 11 HELIX 2 3 ARG A 44 ILE A 50 1 7 HELIX 3 4 VAL A 78 CYS A 85 1 8 HELIX 4 5 GLY A 97 LYS A 106 1 10 SHEET 1 A 8 TRP A 133 SER A 135 0 SHEET 2 A 8 TYR A 151 ARG A 158 -1 N GLU A 157 O GLU A 134 SHEET 3 A 8 ALA A 107 ILE A 115 -1 N HIS A 114 O CYS A 152 SHEET 4 A 8 ILE A 2 ILE A 5 1 N ILE A 2 O GLN A 108 SHEET 5 A 8 ILE A 91 GLY A 95 1 N ILE A 91 O SER A 3 SHEET 6 A 8 PRO A 39 GLY A 43 1 N PRO A 39 O MET A 92 SHEET 7 A 8 LYS A 58 LEU A 62 1 N LYS A 58 O VAL A 40 SHEET 8 A 8 THR A 73 VAL A 75 1 N THR A 73 O ILE A 61 CISPEP 1 GLY A 95 GLY A 96 0 1.26 SITE 1 AC1 12 ILE A 5 ALA A 6 ALA A 7 ASP A 27 SITE 2 AC1 12 PHE A 31 LYS A 32 ILE A 50 ARG A 52 SITE 3 AC1 12 ARG A 57 ILE A 94 THR A 113 HOH A 300 CRYST1 34.990 45.308 101.138 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 0.028580 0.000000 0.000000 0.00000 SCALE2 0.000000 0.022071 0.000000 0.00000 SCALE3 0.000000 0.000000 0.009887 0.00000