HEADER OXIDOREDUCTASE 25-JUN-82 4DFR TITLE CRYSTAL STRUCTURES OF ESCHERICHIA COLI AND LACTOBACILLUS CASEI TITLE 2 DIHYDROFOLATE REDUCTASE REFINED AT 1.7 ANGSTROMS RESOLUTION. I. TITLE 3 GENERAL FEATURES AND BINDING OF METHOTREXATE COMPND MOL_ID: 1; COMPND 2 MOLECULE: DIHYDROFOLATE REDUCTASE; COMPND 3 CHAIN: A, B; COMPND 4 EC: 1.5.1.3; COMPND 5 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI; SOURCE 3 ORGANISM_TAXID: 37762; SOURCE 4 STRAIN: B KEYWDS OXIDO-REDUCTASE, OXIDOREDUCTASE EXPDTA X-RAY DIFFRACTION AUTHOR D.J.FILMAN,D.A.MATTHEWS,J.T.BOLIN,J.KRAUT REVDAT 15 28-FEB-24 4DFR 1 REMARK SEQADV LINK REVDAT 14 29-NOV-17 4DFR 1 KEYWDS HELIX REVDAT 13 13-JUL-11 4DFR 1 VERSN REVDAT 12 26-JAN-10 4DFR 1 ATOM REMARK REVDAT 11 24-FEB-09 4DFR 1 VERSN REVDAT 10 01-APR-03 4DFR 1 JRNL REVDAT 9 15-JUL-92 4DFR 1 FORMUL REVDAT 8 15-APR-91 4DFR 1 FORMUL REVDAT 7 16-JUL-87 4DFR 1 SOURCE REMARK REVDAT 6 12-JUL-85 4DFR 2 CONECT REVDAT 5 22-FEB-84 4DFR 1 REMARK REVDAT 4 31-JAN-84 4DFR 1 REMARK REVDAT 3 30-SEP-83 4DFR 1 REVDAT REVDAT 2 07-MAR-83 4DFR 1 JRNL REMARK REVDAT 1 21-OCT-82 4DFR 0 SPRSDE 21-OCT-82 4DFR 2DFR JRNL AUTH J.T.BOLIN,D.J.FILMAN,D.A.MATTHEWS,R.C.HAMLIN,J.KRAUT JRNL TITL CRYSTAL STRUCTURES OF ESCHERICHIA COLI AND LACTOBACILLUS JRNL TITL 2 CASEI DIHYDROFOLATE REDUCTASE REFINED AT 1.7 A RESOLUTION. JRNL TITL 3 I. GENERAL FEATURES AND BINDING OF METHOTREXATE. JRNL REF J.BIOL.CHEM. V. 257 13650 1982 JRNL REFN ISSN 0021-9258 JRNL PMID 6815178 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH K.M.PERRY,J.J.ONUFFER,N.A.TOUCHETTE,C.S.HERNDON, REMARK 1 AUTH 2 M.S.GITTELMAN,C.R.MATTHEWS,J.-T.CHEN,R.J.MAYER,K.TAIRA, REMARK 1 AUTH 3 S.J.BENKOVIC,E.E.HOWELL,J.KRAUT REMARK 1 TITL EFFECT OF SINGLE AMINO ACID REPLACEMENTS ON THE FOLDING AND REMARK 1 TITL 2 STABILITY OF DIHYDROFOLATE REDUCTASE FROM ESCHERICHIA COLI REMARK 1 REF BIOCHEMISTRY V. 26 2674 1987 REMARK 1 REFN ISSN 0006-2960 REMARK 1 REFERENCE 2 REMARK 1 AUTH D.J.FILMAN,J.T.BOLIN,D.A.MATTHEWS,J.KRAUT REMARK 1 TITL CRYSTAL STRUCTURES OF ESCHERICHIA COLI AND LACTOBACILLUS REMARK 1 TITL 2 CASEI DIHYDROFOLATE REDUCTASE REFINED AT 1.7 ANGSTROMS REMARK 1 TITL 3 RESOLUTION. II. ENVIRONMENT OF BOUND NADPH AND IMPLICATIONS REMARK 1 TITL 4 FOR CATALYSIS REMARK 1 REF J.BIOL.CHEM. V. 257 13663 1982 REMARK 1 REFN ISSN 0021-9258 REMARK 1 REFERENCE 3 REMARK 1 AUTH K.W.VOLZ,D.A.MATTHEWS,R.A.ALDEN,S.T.FREER,C.HANSCH, REMARK 1 AUTH 2 B.T.KAUFMAN,J.KRAUT REMARK 1 TITL CRYSTAL STRUCTURE OF AVIAN DIHYDROFOLATE REDUCTASE REMARK 1 TITL 2 CONTAINING PHENYLTRIAZINE AND NADPH REMARK 1 REF J.BIOL.CHEM. V. 257 2528 1982 REMARK 1 REFN ISSN 0021-9258 REMARK 1 REFERENCE 4 REMARK 1 AUTH D.A.MATTHEWS REMARK 1 TITL INTERPRETATION OF NUCLEAR MAGNETIC RESONANCE SPECTRA FOR REMARK 1 TITL 2 LACTOBACILLUS CASEI DIHYDROFOLATE REDUCTASE BASED ON THE REMARK 1 TITL 3 X-RAY STRUCTURE OF THE ENZYME-METHOTREXATE-NADPH COMPLEX REMARK 1 REF BIOCHEMISTRY V. 18 1602 1979 REMARK 1 REFN ISSN 0006-2960 REMARK 1 REFERENCE 5 REMARK 1 AUTH D.A.MATTHEWS,R.A.ALDEN,S.T.FREER,N.-H.XUONG,J.KRAUT REMARK 1 TITL DIHYDROFOLATE REDUCTASE FROM LACTOBACILLUS CASEI. REMARK 1 TITL 2 STEREOCHEMISTRY OF NADPH BINDING REMARK 1 REF J.BIOL.CHEM. V. 254 4144 1979 REMARK 1 REFN ISSN 0021-9258 REMARK 1 REFERENCE 6 REMARK 1 AUTH M.POE,K.HOOGSTEEN,D.A.MATTHEWS REMARK 1 TITL PROTON MAGNETIC RESONANCE STUDIES ON ESCHERICHIA COLI REMARK 1 TITL 2 DIHYDROFOLATE REDUCTASE. ASSIGNMENT OF HISTIDINE C-2 PROTONS REMARK 1 TITL 3 IN BINARY COMPLEXES WITH FOLATES ON THE BASIS OF THE CRYSTAL REMARK 1 TITL 4 STRUCTURE WITH METHOTREXATE AND ON CHEMICAL MODIFICATIONS REMARK 1 REF J.BIOL.CHEM. V. 254 8143 1979 REMARK 1 REFN ISSN 0021-9258 REMARK 1 REFERENCE 7 REMARK 1 AUTH D.A.MATTHEWS,R.A.ALDEN,J.T.BOLIN,D.J.FILMAN,S.T.FREER, REMARK 1 AUTH 2 R.HAMLIN,W.G.J.HOL,R.L.KISLIUK,E.J.PASTORE,L.T.PLANTE, REMARK 1 AUTH 3 N.-H.XUONG,J.KRAUT REMARK 1 TITL DIHYDROFOLATE REDUCTASE FROM LACTOBACILLUS CASEI. X-RAY REMARK 1 TITL 2 STRUCTURE OF THE ENZYME-METHOTREXATE-NADPH COMPLEX REMARK 1 REF J.BIOL.CHEM. V. 253 6946 1978 REMARK 1 REFN ISSN 0021-9258 REMARK 1 REFERENCE 8 REMARK 1 AUTH C.D.BENNETT,J.A.RODKEY,J.M.SONDEY,R.HIRSCHMANN REMARK 1 TITL DIHYDROFOLATE REDUCTASE. THE AMINO ACID SEQUENCE OF THE REMARK 1 TITL 2 ENZYME FROM A METHOTREXATE-RESISTANT MUTANT OF ESCHERICHIA REMARK 1 TITL 3 COLI REMARK 1 REF BIOCHEMISTRY V. 17 1328 1978 REMARK 1 REFN ISSN 0006-2960 REMARK 1 REFERENCE 9 REMARK 1 AUTH D.A.MATTHEWS,R.A.ALDEN,J.T.BOLIN,S.T.FREER,R.HAMLIN,N.XUONG, REMARK 1 AUTH 2 J.KRAUT,M.POE,M.WILLIAMS,K.HOOGSTEEN REMARK 1 TITL DIHYDROFOLATE REDUCTASE. X-RAY STRUCTURE OF THE BINARY REMARK 1 TITL 2 COMPLEX WITH METHOTREXATE REMARK 1 REF SCIENCE V. 197 452 1977 REMARK 1 REFN ISSN 0036-8075 REMARK 1 REFERENCE 10 REMARK 1 AUTH M.POE,N.J.GREENFIELD,J.M.HIRSHFIELD,M.N.WILLIAMS,K.HOOGSTEEN REMARK 1 TITL DIHYDROFOLATE REDUCTASE. PURIFICATION AND CHARACTERIZATION REMARK 1 TITL 2 OF THE ENZYME FROM AN AMETHOPTERIN-RESISTANT MUTANT OF REMARK 1 TITL 3 ESCHERICHIA COLI REMARK 1 REF BIOCHEMISTRY V. 11 1023 1972 REMARK 1 REFN ISSN 0006-2960 REMARK 2 REMARK 2 RESOLUTION. 1.70 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : NULL REMARK 3 AUTHORS : NULL REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.70 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : NULL REMARK 3 DATA CUTOFF (SIGMA(F)) : NULL REMARK 3 DATA CUTOFF HIGH (ABS(F)) : NULL REMARK 3 DATA CUTOFF LOW (ABS(F)) : NULL REMARK 3 COMPLETENESS (WORKING+TEST) (%) : NULL REMARK 3 NUMBER OF REFLECTIONS : NULL REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : NULL REMARK 3 FREE R VALUE TEST SET SELECTION : NULL REMARK 3 R VALUE (WORKING SET) : 0.155 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 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 : 2508 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 69 REMARK 3 SOLVENT ATOMS : 428 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) : 0.070 REMARK 3 BOND ANGLES (DEGREES) : NULL 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: REMARK 3 MOLECULE DESIGNATED AS CHAIN B BELOW IS PREFERRED FOR REMARK 3 STRUCTURAL COMPARISONS BECAUSE IT IS MORE COMPLETE AND LESS REMARK 3 PERTURBED BY INTERMOLECULAR CONTACTS. REMARK 3 REMARK 3 ALTERNATE LOCATIONS *A* AND *B* ARE PARTIALLY OCCUPIED REMARK 3 CONFORMATIONS FOR RESIDUES SER A 64, SER A 150, REMARK 3 HIS B 45, SER B 64 AND ASP B 122. IN ALL CASES, *A* IS REMARK 3 BELIEVED TO BE THE MAJOR CONFORMER. NEITHER THE REMARK 3 OCCUPANCIES NOR THE THERMAL PARAMETERS SHOULD BE REMARK 3 CONSIDERED AS RELIABLE. REMARK 4 REMARK 4 4DFR 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_1000179300. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : NULL REMARK 200 TEMPERATURE (KELVIN) : NULL REMARK 200 PH : NULL REMARK 200 NUMBER OF CRYSTALS USED : NULL REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : NULL REMARK 200 RADIATION SOURCE : NULL REMARK 200 BEAMLINE : NULL REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : NULL REMARK 200 WAVELENGTH OR RANGE (A) : NULL REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : NULL REMARK 200 DETECTOR MANUFACTURER : NULL REMARK 200 INTENSITY-INTEGRATION SOFTWARE : NULL REMARK 200 DATA SCALING SOFTWARE : NULL REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : NULL REMARK 200 RESOLUTION RANGE HIGH (A) : NULL 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 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 FOR SHELL : NULL REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: NULL REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: NULL REMARK 200 SOFTWARE USED: NULL REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 51.93 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.56 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: NULL REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 61 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -Y,X-Y,Z+1/3 REMARK 290 3555 -X+Y,-X,Z+2/3 REMARK 290 4555 -X,-Y,Z+1/2 REMARK 290 5555 Y,-X+Y,Z+5/6 REMARK 290 6555 X-Y,X,Z+1/6 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 24.52000 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 49.04000 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 36.78000 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 61.30000 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 12.26000 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 300 REMARK: THE MTRIX TRANSFORMATION PRESENTED BELOW WILL SUPERIMPOSE REMARK 300 MOLECULE B ON MOLECULE A. 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, 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 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 PRO A 66 CB CG CD REMARK 470 THR A 68 OG1 CG2 REMARK 470 LYS A 76 CG CD CE NZ REMARK 470 LYS A 106 CE NZ REMARK 470 GLU A 129 CD OE1 OE2 REMARK 470 ASP A 131 CG OD1 OD2 REMARK 470 ARG A 159 CD NE CZ NH1 NH2 REMARK 470 GLU B 129 CD OE1 OE2 REMARK 470 ASP B 131 CG OD1 OD2 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 MET A 1 CA MET A 1 CB -0.162 REMARK 500 SER A 3 CB SER A 3 OG 0.100 REMARK 500 ALA A 6 CA ALA A 6 CB 0.158 REMARK 500 ALA A 6 C ALA A 6 O 0.127 REMARK 500 ALA A 9 C ALA A 9 O 0.140 REMARK 500 ARG A 12 CZ ARG A 12 NH1 0.084 REMARK 500 ARG A 12 CZ ARG A 12 NH2 0.085 REMARK 500 TRP A 22 CE2 TRP A 22 CD2 -0.148 REMARK 500 TRP A 22 CZ3 TRP A 22 CH2 -0.150 REMARK 500 TRP A 30 CE2 TRP A 30 CD2 -0.111 REMARK 500 TRP A 30 C PHE A 31 N -0.138 REMARK 500 ARG A 33 CZ ARG A 33 NH1 0.109 REMARK 500 ARG A 33 CZ ARG A 33 NH2 0.170 REMARK 500 GLY A 43 C GLY A 43 O 0.169 REMARK 500 ARG A 44 CG ARG A 44 CD -0.166 REMARK 500 ARG A 44 CD ARG A 44 NE 0.130 REMARK 500 ARG A 44 C HIS A 45 N -0.162 REMARK 500 TRP A 47 CD2 TRP A 47 CE3 -0.124 REMARK 500 GLU A 48 CB GLU A 48 CG -0.186 REMARK 500 GLU A 48 CD GLU A 48 OE2 0.162 REMARK 500 SER A 49 CB SER A 49 OG 0.093 REMARK 500 GLY A 51 N GLY A 51 CA -0.128 REMARK 500 ARG A 52 CZ ARG A 52 NH1 0.116 REMARK 500 PRO A 53 C PRO A 53 O -0.139 REMARK 500 GLY A 56 N GLY A 56 CA -0.109 REMARK 500 ARG A 57 CD ARG A 57 NE -0.107 REMARK 500 ARG A 57 CZ ARG A 57 NH2 0.116 REMARK 500 LYS A 58 CD LYS A 58 CE 0.243 REMARK 500 SER A 64 CB SER A 64 OG 0.156 REMARK 500 GLN A 65 C GLN A 65 O 0.143 REMARK 500 ARG A 71 NE ARG A 71 CZ -0.110 REMARK 500 TRP A 74 CB TRP A 74 CG -0.116 REMARK 500 SER A 77 CA SER A 77 CB 0.120 REMARK 500 VAL A 78 CB VAL A 78 CG2 0.172 REMARK 500 VAL A 78 C VAL A 78 O 0.158 REMARK 500 GLU A 90 CA GLU A 90 CB -0.165 REMARK 500 GLU A 90 CG GLU A 90 CD -0.106 REMARK 500 GLU A 90 CD GLU A 90 OE1 -0.066 REMARK 500 VAL A 93 C VAL A 93 O 0.139 REMARK 500 ARG A 98 CD ARG A 98 NE 0.120 REMARK 500 TYR A 100 C TYR A 100 O -0.150 REMARK 500 PHE A 103 CA PHE A 103 C -0.202 REMARK 500 PRO A 105 CD PRO A 105 N 0.101 REMARK 500 LYS A 109 CB LYS A 109 CG -0.216 REMARK 500 LYS A 109 CE LYS A 109 NZ 0.215 REMARK 500 LYS A 109 C LEU A 110 N -0.224 REMARK 500 TYR A 111 C TYR A 111 O 0.201 REMARK 500 TYR A 111 C LEU A 112 N -0.206 REMARK 500 THR A 113 CB THR A 113 OG1 -0.157 REMARK 500 ILE A 115 CA ILE A 115 CB 0.182 REMARK 500 REMARK 500 THIS ENTRY HAS 183 BOND DEVIATIONS. 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 MET A 1 CG - SD - CE ANGL. DEV. = 15.2 DEGREES REMARK 500 LEU A 4 CB - CG - CD1 ANGL. DEV. = 16.6 DEGREES REMARK 500 ALA A 6 O - C - N ANGL. DEV. = -15.1 DEGREES REMARK 500 LEU A 8 CB - CG - CD2 ANGL. DEV. = 21.5 DEGREES REMARK 500 VAL A 10 CG1 - CB - CG2 ANGL. DEV. = -16.6 DEGREES REMARK 500 VAL A 10 CA - CB - CG1 ANGL. DEV. = 12.4 DEGREES REMARK 500 VAL A 10 O - C - N ANGL. DEV. = -11.1 DEGREES REMARK 500 ASP A 11 OD1 - CG - OD2 ANGL. DEV. = -11.8 DEGREES REMARK 500 ASP A 11 CB - CG - OD1 ANGL. DEV. = 15.9 DEGREES REMARK 500 ARG A 12 CG - CD - NE ANGL. DEV. = 16.2 DEGREES REMARK 500 ARG A 12 CD - NE - CZ ANGL. DEV. = 11.2 DEGREES REMARK 500 ARG A 12 NE - CZ - NH2 ANGL. DEV. = 8.4 DEGREES REMARK 500 MET A 16 CG - SD - CE ANGL. DEV. = 30.5 DEGREES REMARK 500 GLU A 17 O - C - N ANGL. DEV. = 9.7 DEGREES REMARK 500 ASN A 18 OD1 - CG - ND2 ANGL. DEV. = 15.8 DEGREES REMARK 500 PRO A 21 CA - N - CD ANGL. DEV. = -10.9 DEGREES REMARK 500 PRO A 21 N - CD - CG ANGL. DEV. = 12.7 DEGREES REMARK 500 TRP A 22 CD1 - CG - CD2 ANGL. DEV. = -8.9 DEGREES REMARK 500 TRP A 22 CG - CD1 - NE1 ANGL. DEV. = 6.8 DEGREES REMARK 500 TRP A 22 CD1 - NE1 - CE2 ANGL. DEV. = -10.5 DEGREES REMARK 500 TRP A 22 NE1 - CE2 - CZ2 ANGL. DEV. = -16.5 DEGREES REMARK 500 TRP A 22 CD2 - CE2 - CZ2 ANGL. DEV. = 12.3 DEGREES REMARK 500 TRP A 22 CE2 - CD2 - CG ANGL. DEV. = 8.4 DEGREES REMARK 500 TRP A 22 CG - CD2 - CE3 ANGL. DEV. = -8.6 DEGREES REMARK 500 TRP A 22 CD2 - CE3 - CZ3 ANGL. DEV. = -11.0 DEGREES REMARK 500 TRP A 22 CE3 - CZ3 - CH2 ANGL. DEV. = 9.3 DEGREES REMARK 500 TRP A 22 CH2 - CZ2 - CE2 ANGL. DEV. = -16.5 DEGREES REMARK 500 ASN A 23 CB - CG - OD1 ANGL. DEV. = 17.1 DEGREES REMARK 500 PRO A 25 O - C - N ANGL. DEV. = -9.9 DEGREES REMARK 500 ALA A 29 O - C - N ANGL. DEV. = -10.6 DEGREES REMARK 500 TRP A 30 CG - CD1 - NE1 ANGL. DEV. = -6.5 DEGREES REMARK 500 TRP A 30 CG - CD2 - CE3 ANGL. DEV. = -6.5 DEGREES REMARK 500 TRP A 30 CE3 - CZ3 - CH2 ANGL. DEV. = -7.7 DEGREES REMARK 500 TRP A 30 CZ3 - CH2 - CZ2 ANGL. DEV. = 8.7 DEGREES REMARK 500 TRP A 30 CA - C - O ANGL. DEV. = -17.0 DEGREES REMARK 500 TRP A 30 CA - C - N ANGL. DEV. = 17.4 DEGREES REMARK 500 PHE A 31 CB - CG - CD2 ANGL. DEV. = -9.6 DEGREES REMARK 500 PHE A 31 CD1 - CG - CD2 ANGL. DEV. = 8.4 DEGREES REMARK 500 PHE A 31 CG - CD2 - CE2 ANGL. DEV. = -10.7 DEGREES REMARK 500 LYS A 32 O - C - N ANGL. DEV. = 9.8 DEGREES REMARK 500 ARG A 33 NE - CZ - NH2 ANGL. DEV. = 4.3 DEGREES REMARK 500 ASN A 34 CA - C - N ANGL. DEV. = 14.8 DEGREES REMARK 500 LEU A 36 CB - CG - CD1 ANGL. DEV. = 11.7 DEGREES REMARK 500 ASP A 37 CB - CG - OD1 ANGL. DEV. = -5.6 DEGREES REMARK 500 ASP A 37 CB - CG - OD2 ANGL. DEV. = 7.5 DEGREES REMARK 500 LYS A 38 CA - CB - CG ANGL. DEV. = 16.4 DEGREES REMARK 500 GLY A 43 CA - C - N ANGL. DEV. = 15.5 DEGREES REMARK 500 GLY A 43 O - C - N ANGL. DEV. = -12.9 DEGREES REMARK 500 ARG A 44 CB - CG - CD ANGL. DEV. = 27.9 DEGREES REMARK 500 ARG A 44 CD - NE - CZ ANGL. DEV. = -12.7 DEGREES REMARK 500 REMARK 500 THIS ENTRY HAS 461 ANGLE DEVIATIONS. 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 17 -59.56 -145.93 REMARK 500 ASP A 37 11.00 82.49 REMARK 500 PRO A 126 152.49 -44.98 REMARK 500 PRO A 130 1.40 -55.48 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: NON-CIS, NON-TRANS REMARK 500 REMARK 500 THE FOLLOWING PEPTIDE BONDS DEVIATE SIGNIFICANTLY FROM BOTH REMARK 500 CIS AND TRANS CONFORMATION. CIS BONDS, IF ANY, ARE LISTED REMARK 500 ON CISPEP RECORDS. TRANS IS DEFINED AS 180 +/- 30 AND REMARK 500 CIS IS DEFINED AS 0 +/- 30 DEGREES. REMARK 500 MODEL OMEGA REMARK 500 GLN A 65 PRO A 66 -143.13 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: PLANAR GROUPS REMARK 500 REMARK 500 PLANAR GROUPS IN THE FOLLOWING RESIDUES HAVE A TOTAL REMARK 500 RMS DISTANCE OF ALL ATOMS FROM THE BEST-FIT PLANE REMARK 500 BY MORE THAN AN EXPECTED VALUE OF 6*RMSD, WITH AN REMARK 500 RMSD 0.02 ANGSTROMS, OR AT LEAST ONE ATOM HAS REMARK 500 AN RMSD GREATER THAN THIS VALUE REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 M RES CSSEQI RMS TYPE REMARK 500 ARG A 33 0.13 SIDE CHAIN REMARK 500 ARG A 44 0.12 SIDE CHAIN REMARK 500 ARG A 52 0.23 SIDE CHAIN REMARK 500 ARG A 98 0.16 SIDE CHAIN REMARK 500 ARG B 12 0.18 SIDE CHAIN REMARK 500 ARG B 33 0.15 SIDE CHAIN REMARK 500 ARG B 44 0.13 SIDE CHAIN REMARK 500 ARG B 52 0.12 SIDE CHAIN REMARK 500 ARG B 71 0.09 SIDE CHAIN REMARK 500 ARG B 98 0.09 SIDE CHAIN REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: MAIN CHAIN PLANARITY REMARK 500 REMARK 500 THE FOLLOWING RESIDUES HAVE A PSEUDO PLANARITY REMARK 500 TORSION ANGLE, C(I) - CA(I) - N(I+1) - O(I), GREATER REMARK 500 10.0 DEGREES. (M=MODEL NUMBER; RES=RESIDUE NAME; REMARK 500 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; REMARK 500 I=INSERTION CODE). REMARK 500 REMARK 500 M RES CSSEQI ANGLE REMARK 500 GLN A 65 26.12 REMARK 500 ALA A 117 -10.52 REMARK 500 ALA B 7 -15.62 REMARK 500 ARG B 12 -10.06 REMARK 500 ALA B 29 -10.27 REMARK 500 ILE B 41 -12.81 REMARK 500 HIS B 45 13.58 REMARK 500 PRO B 55 12.67 REMARK 500 ILE B 60 -10.02 REMARK 500 SER B 64 14.61 REMARK 500 GLU B 101 -10.25 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 CA B 161 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HOH A 250 O REMARK 620 2 SER B 135 O 86.9 REMARK 620 3 HOH B 205 O 86.5 83.1 REMARK 620 4 HOH B 206 O 86.8 167.2 85.3 REMARK 620 5 HOH B 207 O 175.4 96.3 90.4 89.5 REMARK 620 6 HOH B 221 O 85.3 108.9 165.0 81.7 96.9 REMARK 620 N 1 2 3 4 5 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: APT REMARK 800 EVIDENCE_CODE: AUTHOR REMARK 800 SITE_DESCRIPTION: RESIDUES INTERACTING WITH THE PTERIDINE OF THE REMARK 800 METHOTREXATE INHIBITOR. INCLUDE WATER MOLECULES WHICH ARE BOUND REMARK 800 EITHER TO INVARIANT SIDE CHAINS OR TO STRUCTURALLY INVARIANT REMARK 800 MAIN CHAIN SEGMENTS. REMARK 800 REMARK 800 SITE_IDENTIFIER: ANM REMARK 800 EVIDENCE_CODE: AUTHOR REMARK 800 SITE_DESCRIPTION: RESIDUES INTERACTING WITH THE N(10) METHYL OF REMARK 800 THE METHOTREXATE INHIBITOR REMARK 800 REMARK 800 SITE_IDENTIFIER: AAB REMARK 800 EVIDENCE_CODE: AUTHOR REMARK 800 SITE_DESCRIPTION: RESIDUES INTERACTING WITH THE P-AMINO BENZOYL OF REMARK 800 THE METHOTREXATE INHIBITOR REMARK 800 REMARK 800 SITE_IDENTIFIER: AGL REMARK 800 EVIDENCE_CODE: AUTHOR REMARK 800 SITE_DESCRIPTION: RESIDUES INTERACTING WITH THE GLUTAMATE OF THE REMARK 800 METHOTREXATE INHIBITOR REMARK 800 REMARK 800 SITE_IDENTIFIER: BPT REMARK 800 EVIDENCE_CODE: AUTHOR REMARK 800 SITE_DESCRIPTION: RESIDUES INTERACTING WITH THE PTERIDINE OF THE REMARK 800 METHOTREXATE INHIBITOR. INCLUDE WATER MOLECULES WHICH ARE BOUND REMARK 800 EITHER TO INVARIANT SIDE CHAINS OR TO STRUCTURALLY INVARIANT REMARK 800 MAIN CHAIN SEGMENTS. REMARK 800 REMARK 800 SITE_IDENTIFIER: BNM REMARK 800 EVIDENCE_CODE: AUTHOR REMARK 800 SITE_DESCRIPTION: RESIDUES INTERACTING WITH THE N(10) METHYL OF REMARK 800 THE METHOTREXATE INHIBITOR REMARK 800 REMARK 800 SITE_IDENTIFIER: BAB REMARK 800 EVIDENCE_CODE: AUTHOR REMARK 800 SITE_DESCRIPTION: RESIDUES INTERACTING WITH THE P-AMINO BENZOYL OF REMARK 800 THE METHOTREXATE INHIBITOR REMARK 800 REMARK 800 SITE_IDENTIFIER: BGL REMARK 800 EVIDENCE_CODE: AUTHOR REMARK 800 SITE_DESCRIPTION: RESIDUES INTERACTING WITH THE GLUTAMATE OF THE REMARK 800 METHOTREXATE INHIBITOR REMARK 800 REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CL A 160 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CL B 160 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA B 161 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MTX A 161 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC5 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MTX B 162 REMARK 999 REMARK 999 SEQUENCE REMARK 999 RESIDUE 142 IS LISTED AS ASN IN THE SEQUENCE PAPER REMARK 999 (SEE REFERENCE 9 ABOVE). THE X-RAY STRUCTURE SUGGESTS IT REMARK 999 IS ASP (EVIDENCE IS INTERMOLECULAR SALT-LINKAGE TO AN ARG). DBREF 4DFR A 1 159 UNP P0ABQ4 DYR_ECOLI 1 159 DBREF 4DFR B 1 159 UNP P0ABQ4 DYR_ECOLI 1 159 SEQADV 4DFR ASP A 37 UNP P0ABQ4 ASN 37 CONFLICT SEQADV 4DFR LYS A 154 UNP P0ABQ4 GLU 154 CONFLICT SEQADV 4DFR ASP B 37 UNP P0ABQ4 ASN 37 CONFLICT SEQADV 4DFR LYS B 154 UNP P0ABQ4 GLU 154 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 LYS ILE LEU SEQRES 13 A 159 GLU ARG ARG SEQRES 1 B 159 MET ILE SER LEU ILE ALA ALA LEU ALA VAL ASP ARG VAL SEQRES 2 B 159 ILE GLY MET GLU ASN ALA MET PRO TRP ASN LEU PRO ALA SEQRES 3 B 159 ASP LEU ALA TRP PHE LYS ARG ASN THR LEU ASP LYS PRO SEQRES 4 B 159 VAL ILE MET GLY ARG HIS THR TRP GLU SER ILE GLY ARG SEQRES 5 B 159 PRO LEU PRO GLY ARG LYS ASN ILE ILE LEU SER SER GLN SEQRES 6 B 159 PRO GLY THR ASP ASP ARG VAL THR TRP VAL LYS SER VAL SEQRES 7 B 159 ASP GLU ALA ILE ALA ALA CYS GLY ASP VAL PRO GLU ILE SEQRES 8 B 159 MET VAL ILE GLY GLY GLY ARG VAL TYR GLU GLN PHE LEU SEQRES 9 B 159 PRO LYS ALA GLN LYS LEU TYR LEU THR HIS ILE ASP ALA SEQRES 10 B 159 GLU VAL GLU GLY ASP THR HIS PHE PRO ASP TYR GLU PRO SEQRES 11 B 159 ASP ASP TRP GLU SER VAL PHE SER GLU PHE HIS ASP ALA SEQRES 12 B 159 ASP ALA GLN ASN SER HIS SER TYR CYS PHE LYS ILE LEU SEQRES 13 B 159 GLU ARG ARG HET CL A 160 1 HET MTX A 161 33 HET CL B 160 1 HET CA B 161 1 HET MTX B 162 33 HETNAM CL CHLORIDE ION HETNAM MTX METHOTREXATE HETNAM CA CALCIUM ION FORMUL 3 CL 2(CL 1-) FORMUL 4 MTX 2(C20 H22 N8 O5) FORMUL 6 CA CA 2+ FORMUL 8 HOH *428(H2 O) HELIX 1 HBA LEU A 24 THR A 35 1 12 HELIX 2 HCA GLY A 43 ILE A 50 1 8 HELIX 3 HEA SER A 77 GLY A 86 1 10 HELIX 4 HFA GLY A 96 LEU A 104 1 9 HELIX 5 HBB LEU B 24 THR B 35 1 12 HELIX 6 HCB GLY B 43 ILE B 50 1 8 HELIX 7 HEB SER B 77 GLY B 86 1 10 HELIX 8 HFB GLY B 96 LEU B 104 1 9 SHEET 1 S1A 8 THR A 73 VAL A 75 0 SHEET 2 S1A 8 LYS A 58 SER A 63 1 O ASN A 59 N THR A 73 SHEET 3 S1A 8 PRO A 39 GLY A 43 1 N VAL A 40 O LYS A 58 SHEET 4 S1A 8 ILE A 91 GLY A 95 1 N MET A 92 O PRO A 39 SHEET 5 S1A 8 MET A 1 LEU A 8 1 O MET A 1 N ILE A 91 SHEET 6 S1A 8 GLN A 108 ASP A 116 1 O LYS A 109 N LEU A 4 SHEET 7 S1A 8 SER A 150 ARG A 159 -1 N ARG A 158 O GLN A 108 SHEET 8 S1A 8 ASP A 132 HIS A 141 -1 N GLU A 134 O GLU A 157 SHEET 1 S1B 8 THR B 73 VAL B 75 0 SHEET 2 S1B 8 LYS B 58 SER B 63 1 O ASN B 59 N THR B 73 SHEET 3 S1B 8 PRO B 39 GLY B 43 1 N VAL B 40 O LYS B 58 SHEET 4 S1B 8 PRO B 89 GLY B 95 1 N MET B 92 O PRO B 39 SHEET 5 S1B 8 MET B 1 LEU B 8 1 O MET B 1 N ILE B 91 SHEET 6 S1B 8 GLN B 108 ASP B 116 1 O LYS B 109 N LEU B 4 SHEET 7 S1B 8 SER B 150 ARG B 159 -1 N ARG B 158 O GLN B 108 SHEET 8 S1B 8 ASP B 132 HIS B 141 -1 N GLU B 134 O GLU B 157 LINK O HOH A 250 CA CA B 161 2665 1555 2.56 LINK O SER B 135 CA CA B 161 1555 1555 2.45 LINK CA CA B 161 O HOH B 205 1555 1555 2.47 LINK CA CA B 161 O HOH B 206 1555 2665 2.43 LINK CA CA B 161 O HOH B 207 1555 2665 2.49 LINK CA CA B 161 O HOH B 221 1555 1555 2.59 CISPEP 1 GLY A 95 GLY A 96 0 1.50 CISPEP 2 GLY B 95 GLY B 96 0 -2.65 SITE 1 APT 12 ILE A 5 ALA A 6 ALA A 7 TRP A 22 SITE 2 APT 12 ASP A 27 LEU A 28 PHE A 31 ILE A 94 SITE 3 APT 12 THR A 113 HOH A 163 HOH A 165 HOH A 172 SITE 1 ANM 1 SER A 49 SITE 1 AAB 5 LEU A 28 PHE A 31 ILE A 50 ARG A 52 SITE 2 AAB 5 LEU A 54 SITE 1 AGL 5 LEU A 28 PHE A 31 LYS A 32 LEU A 54 SITE 2 AGL 5 ARG A 57 SITE 1 BPT 12 ILE B 5 ALA B 6 ALA B 7 TRP B 22 SITE 2 BPT 12 ASP B 27 LEU B 28 PHE B 31 ILE B 94 SITE 3 BPT 12 THR B 113 HOH B 170 HOH B 171 HOH B 202 SITE 1 BNM 1 SER B 49 SITE 1 BAB 5 LEU B 28 PHE B 31 ILE B 50 ARG B 52 SITE 2 BAB 5 LEU B 54 SITE 1 BGL 5 LEU B 28 PHE B 31 LYS B 32 LEU B 54 SITE 2 BGL 5 ARG B 57 SITE 1 AC1 6 GLY A 43 HIS A 45 THR A 46 GLY A 96 SITE 2 AC1 6 HOH A 230 HOH A 374 SITE 1 AC2 4 GLY B 43 THR B 46 GLY B 96 HOH B 285 SITE 1 AC3 6 HOH A 250 SER B 135 HOH B 205 HOH B 206 SITE 2 AC3 6 HOH B 207 HOH B 221 SITE 1 AC4 14 ILE A 5 ALA A 6 ASP A 27 PHE A 31 SITE 2 AC4 14 LYS A 32 ARG A 52 ARG A 57 ILE A 94 SITE 3 AC4 14 TYR A 100 THR A 113 HOH A 263 HOH A 296 SITE 4 AC4 14 HOH A 323 HOH A 328 SITE 1 AC5 17 ILE B 5 ALA B 6 ALA B 7 ASP B 27 SITE 2 AC5 17 LEU B 28 PHE B 31 LYS B 32 ILE B 50 SITE 3 AC5 17 ARG B 52 LEU B 54 ARG B 57 ILE B 94 SITE 4 AC5 17 TYR B 100 THR B 113 HOH B 202 HOH B 242 SITE 5 AC5 17 HOH B 260 CRYST1 93.220 93.220 73.560 90.00 90.00 120.00 P 61 12 ORIGX1 0.010727 0.006193 0.000000 0.00000 ORIGX2 0.000000 0.012387 0.000000 0.00000 ORIGX3 0.000000 0.000000 0.013594 0.00000 SCALE1 0.010727 0.006193 0.000000 0.00000 SCALE2 0.000000 0.012387 0.000000 0.00000 SCALE3 0.000000 0.000000 0.013594 0.00000 MTRIX1 1 -0.921160 -0.379660 0.636818 59.21707 1 MTRIX2 1 -0.346230 0.699130 -0.625580 47.40033 1 MTRIX3 1 0.177743 -0.605172 -0.775593 96.59826 1