HEADER HYDROLASE(SERINE PROTEINASE) 21-FEB-90 8EST TITLE REACTION OF PORCINE PANCREATIC ELASTASE WITH 7-SUBSTITUTED TITLE 2 3-ALKOXY-4-CHLOROISOCOUMARINS: DESIGN OF POTENT INHIBITORS TITLE 3 USING THE CRYSTAL STRUCTURE OF THE COMPLEX FORMED WITH 4- TITLE 4 CHLORO-3-ETHOXY-7-GUANIDINO-ISOCOUMARIN COMPND MOL_ID: 1; COMPND 2 MOLECULE: PORCINE PANCREATIC ELASTASE; COMPND 3 CHAIN: E; COMPND 4 EC: 3.4.21.36; COMPND 5 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: SUS SCROFA; SOURCE 3 ORGANISM_COMMON: PIG; SOURCE 4 ORGANISM_TAXID: 9823 KEYWDS HYDROLASE(SERINE PROTEINASE) EXPDTA X-RAY DIFFRACTION AUTHOR R.RADHAKRISHNAN,J.C.POWERS,E.F.MEYERJUNIOR REVDAT 4 24-FEB-09 8EST 1 VERSN REVDAT 3 01-APR-03 8EST 1 JRNL REVDAT 2 15-JAN-93 8EST 1 JRNL REVDAT 1 15-OCT-92 8EST 0 JRNL AUTH J.C.POWERS,J.OLEKSYSZYN,S.L.NARASIMHAN,C.M.KAM JRNL TITL REACTION OF PORCINE PANCREATIC ELASTASE WITH JRNL TITL 2 7-SUBSTITUTED 3-ALKOXY-4-CHLOROISOCOUMARINS: JRNL TITL 3 DESIGN OF POTENT INHIBITORS USING THE CRYSTAL JRNL TITL 4 STRUCTURE OF THE COMPLEX FORMED WITH JRNL TITL 5 4-CHLORO-3-ETHOXY-7-GUANIDINOISOCOUMARIN. JRNL REF BIOCHEMISTRY V. 29 3108 1990 JRNL REFN ISSN 0006-2960 JRNL PMID 2337582 JRNL DOI 10.1021/BI00464A030 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH M.A.HERNANDEZ,J.C.POWERS,J.GLINSKI,J.OLEKSYSZYN, REMARK 1 AUTH 2 J.VIJAYALAKSHMI,E.F.MEYERJUNIOR REMARK 1 TITL EFFECT OF THE 7-AMINO SUBSTITUENT ON THE REMARK 1 TITL 2 INHIBITORY POTENCY OF MECHANISM-BASED ISOCOUMARIN REMARK 1 TITL 3 INHIBITORS FOR PORCINE PANCREATIC AND HUMAN REMARK 1 TITL 4 NEUTROPHIL ELASTASES: A 1.85-ANGSTROMS X-RAY REMARK 1 TITL 5 STRUCTURE OF THE COMPLEX BETWEEN PORCINE REMARK 1 TITL 6 PANCREATIC ELASTASE AND REMARK 1 TITL 7 7-[(N-TOSYLPHENYLALANYL)AMINO]-4-CHLORO-3- REMARK 1 TITL 8 METHOXYISOCOUMARIN REMARK 1 REF J.MED.CHEM. V. 35 1121 1992 REMARK 1 REFN ISSN 0022-2623 REMARK 1 REFERENCE 2 REMARK 1 AUTH J.VIJAYALAKSHMI,E.F.MEYERJUNIOR,C.-M.KAM,J.C.POWERS REMARK 1 TITL STRUCTURAL STUDY OF PORCINE PANCREATIC ELASTASE REMARK 1 TITL 2 COMPLEXED WITH REMARK 1 TITL 3 7-AMINO-3-(2-BROMOETHOXY)-4-CHLOROISOCOUMARIN AS A REMARK 1 TITL 4 NONREACTIVATABLE DOUBLY COVALENT ENZYME-INHIBITOR REMARK 1 TITL 5 COMPLEX REMARK 1 REF BIOCHEMISTRY V. 30 2175 1991 REMARK 1 REFN ISSN 0006-2960 REMARK 1 REFERENCE 3 REMARK 1 AUTH M.M.CHOW,E.F.MEYERJUNIOR,W.BODE,C.-M.KAM, REMARK 1 AUTH 2 R.RADHAKRISHNAN,J.VIJAYALAKSHMI,J.C.POWERS REMARK 1 TITL THE 2.2-ANGSTROM RESOLUTION X-RAY CRYSTAL REMARK 1 TITL 2 STRUCTURE OF THE COMPLEX OF TRYPSIN INHIBITED BY REMARK 1 TITL 3 4-CHLORO-3-ETHOXY-7-GUANIDINOISOCOUMARIN: A REMARK 1 TITL 4 PROPOSED MODEL OF THE THROMBIN-INHIBITOR COMPLEX REMARK 1 REF J.AM.CHEM.SOC. V. 112 7783 1990 REMARK 1 REFN ISSN 0002-7863 REMARK 1 REFERENCE 4 REMARK 1 AUTH W.BODE,E.F.MEYERJUNIOR,J.C.POWERS REMARK 1 TITL HUMAN LEUKOCYTE AND PORCINE PANCREATIC ELASTASE: REMARK 1 TITL 2 X-RAY CRYSTAL STRUCTURES, MECHANISM, SUBSTRATE REMARK 1 TITL 3 SPECIFICITY, AND MECHANISM-BASED INHIBITORS REMARK 1 REF BIOCHEMISTRY V. 28 1951 1989 REMARK 1 REFN ISSN 0006-2960 REMARK 1 REFERENCE 5 REMARK 1 AUTH R.RADHAKRISHNAN,L.G.PRESTA,E.F.MEYERJUNIOR, REMARK 1 AUTH 2 R.WILDONGER REMARK 1 TITL CRYSTAL STRUCTURES OF THE COMPLEX OF PORCINE REMARK 1 TITL 2 PANCREATIC ELASTASE WITH TWO VALINE-DERIVED REMARK 1 TITL 3 BENZOXAZINONE INHIBITORS REMARK 1 REF J.MOL.BIOL. V. 198 417 1987 REMARK 1 REFN ISSN 0022-2836 REMARK 1 REFERENCE 6 REMARK 1 AUTH E.F.MEYERJUNIOR,L.G.PRESTA,R.RADHAKRISHNAN REMARK 1 TITL STEREOSPECIFIC REACTION OF REMARK 1 TITL 2 3-METHOXY-4-CHLORO-7-AMINO-ISOCOUMARIN WITH REMARK 1 TITL 3 CRYSTALLINE PORCINE PANCREATIC ELASTASE REMARK 1 REF J.AM.CHEM.SOC. V. 107 4091 1985 REMARK 1 REFN ISSN 0002-7863 REMARK 2 REMARK 2 RESOLUTION. 1.78 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : EREF REMARK 3 AUTHORS : JACK,LEVITT REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.78 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 7.00 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) : 0.170 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 : 1822 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 25 REMARK 3 SOLVENT ATOMS : 169 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) : 0.015 REMARK 3 BOND ANGLES (DEGREES) : 2.00 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: THE FOLLOWING ATOMS WERE TREATED AS REMARK 3 DUMMY ATOMS, WHICH MEANS THAT THEY CONTRIBUTED TO THE ENERGY REMARK 3 REFINEMENT PART OF EREF BUT NOT TO THE CALCULATED STRUCTURE REMARK 3 FACTORS -SER 36C OG, SER 37 OG, ARG 61 (CZ,NH1,NH2), GLN 110 REMARK 3 (CG,CD,OE1,NE2), ARG 125 (CG,CD,NE,CZ,NH1,NH2), SO4 247 (O1, REMARK 3 O3). REMARK 4 REMARK 4 8EST COMPLIES WITH FORMAT V. 3.15, 01-DEC-08 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 : 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 (%): 42.49 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.14 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: NULL 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 25.31000 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 37.62000 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 29.13000 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 37.62000 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 25.31000 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 29.13000 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 SOFTWARE DETERMINED QUATERNARY STRUCTURE: MONOMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 APPLY THE FOLLOWING TO CHAINS: E 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 400 REMARK 400 COMPOUND REMARK 400 THIS COMPLEX IS ONE OF THE BEST IRREVERSIBLE INHIBITORS REMARK 400 THUS FAR REPORTED FOR PPE (KOBS/[I] = 8100/(MOLE. SEC) ). 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 ARG E 107 NE ARG E 107 CZ 0.078 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 ARG E 107 NE - CZ - NH1 ANGL. DEV. = 3.4 DEGREES REMARK 500 ARG E 188A NE - CZ - NH2 ANGL. DEV. = -3.9 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 TRP E 27 60.22 -116.61 REMARK 500 TYR E 171 -122.13 -91.12 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 GLU E 21 0.07 SIDE_CHAIN REMARK 500 GLU E 70 0.07 SIDE_CHAIN REMARK 500 ASN E 74 0.09 SIDE_CHAIN REMARK 500 ASN E 178 0.08 SIDE_CHAIN REMARK 500 GLN E 192 0.07 SIDE_CHAIN REMARK 500 ASP E 194 0.09 SIDE_CHAIN REMARK 500 TYR E 234 0.08 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, 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 CYS E 42 -14.80 REMARK 500 SER E 189 -10.52 REMARK 500 SER E 195 10.20 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CHIRAL CENTERS REMARK 500 REMARK 500 UNEXPECTED CONFIGURATION OF THE FOLLOWING CHIRAL REMARK 500 CENTER(S) USING IMPROPER CA--C--CB--N CHIRALITY REMARK 500 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: (11X,I3,1X,A3,1X,A1,I4,A1,6X,F5.1,6X,A1,10X,A1,3X,A16) REMARK 500 REMARK 500 M RES CSSEQI IMPROPER EXPECTED FOUND DETAILS REMARK 500 ASP E 186 24.5 L L OUTSIDE RANGE REMARK 500 SER E 195 20.4 L L OUTSIDE RANGE REMARK 500 REMARK 500 REMARK: NULL REMARK 525 REMARK 525 SOLVENT REMARK 525 REMARK 525 THE SOLVENT MOLECULES HAVE CHAIN IDENTIFIERS THAT REMARK 525 INDICATE THE POLYMER CHAIN WITH WHICH THEY ARE MOST REMARK 525 CLOSELY ASSOCIATED. THE REMARK LISTS ALL THE SOLVENT REMARK 525 MOLECULES WHICH ARE MORE THAN 5A AWAY FROM THE REMARK 525 NEAREST POLYMER CHAIN (M = MODEL NUMBER; REMARK 525 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE REMARK 525 NUMBER; I=INSERTION CODE): REMARK 525 REMARK 525 M RES CSSEQI REMARK 525 HOH E 641 DISTANCE = 6.36 ANGSTROMS REMARK 525 HOH E 679 DISTANCE = 6.85 ANGSTROMS REMARK 600 REMARK 600 HETEROGEN REMARK 600 THE TITLE INHIBITOR HAS BEEN STUDIED IN TWO RELATED ENZYMES REMARK 600 PPE AND BOVINE TRYPSIN (REFERENCE 3). IN THE LATTER CASE, REMARK 600 AS WOULD BE EXPECTED, THE POSITIVELY CHARGED GUANIDINIUM REMARK 600 GROUP IS LOCATED IN TRYPSIN'S PRIMARY SPECIFICITY (S1) SITE REMARK 600 BUT TWO BINDING MODES ARE EXHIBITED, SINGLY AND DOUBLY REMARK 600 COVALENTLY LINKED TO TRYPSIN. CONVERSELY, THE COMPLEX REMARK 600 PRESENTED IN THIS ENTRY IS FLIPPED APPROXIMATELY 180 DEGREE REMARK 600 SO THAT THE GUANIDINIUM GROUP IS FOUND IN THE S2' SITE, REMARK 600 H-BONDED TO THR E 41. 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 E 248 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 GLU E 70 OE1 REMARK 620 2 ASN E 72 O 80.1 REMARK 620 3 GLN E 75 O 154.8 77.3 REMARK 620 4 GLU E 80 OE2 106.2 169.8 94.7 REMARK 620 5 ASN E 77 OD1 80.3 90.8 110.9 98.1 REMARK 620 6 HOH E 327 O 87.8 90.5 81.4 81.9 167.6 REMARK 620 N 1 2 3 4 5 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: CAT REMARK 800 EVIDENCE_CODE: AUTHOR REMARK 800 SITE_DESCRIPTION: CATALYTIC SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 E 247 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA E 248 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE GIS E 269 DBREF 8EST E 16 245 UNP P00772 ELA1_PIG 27 266 SEQADV 8EST ASN E 77 UNP P00772 ASP 92 CONFLICT SEQRES 1 E 240 VAL VAL GLY GLY THR GLU ALA GLN ARG ASN SER TRP PRO SEQRES 2 E 240 SER GLN ILE SER LEU GLN TYR ARG SER GLY SER SER TRP SEQRES 3 E 240 ALA HIS THR CYS GLY GLY THR LEU ILE ARG GLN ASN TRP SEQRES 4 E 240 VAL MET THR ALA ALA HIS CYS VAL ASP ARG GLU LEU THR SEQRES 5 E 240 PHE ARG VAL VAL VAL GLY GLU HIS ASN LEU ASN GLN ASN SEQRES 6 E 240 ASN GLY THR GLU GLN TYR VAL GLY VAL GLN LYS ILE VAL SEQRES 7 E 240 VAL HIS PRO TYR TRP ASN THR ASP ASP VAL ALA ALA GLY SEQRES 8 E 240 TYR ASP ILE ALA LEU LEU ARG LEU ALA GLN SER VAL THR SEQRES 9 E 240 LEU ASN SER TYR VAL GLN LEU GLY VAL LEU PRO ARG ALA SEQRES 10 E 240 GLY THR ILE LEU ALA ASN ASN SER PRO CYS TYR ILE THR SEQRES 11 E 240 GLY TRP GLY LEU THR ARG THR ASN GLY GLN LEU ALA GLN SEQRES 12 E 240 THR LEU GLN GLN ALA TYR LEU PRO THR VAL ASP TYR ALA SEQRES 13 E 240 ILE CYS SER SER SER SER TYR TRP GLY SER THR VAL LYS SEQRES 14 E 240 ASN SER MET VAL CYS ALA GLY GLY ASP GLY VAL ARG SER SEQRES 15 E 240 GLY CYS GLN GLY ASP SER GLY GLY PRO LEU HIS CYS LEU SEQRES 16 E 240 VAL ASN GLY GLN TYR ALA VAL HIS GLY VAL THR SER PHE SEQRES 17 E 240 VAL SER ARG LEU GLY CYS ASN VAL THR ARG LYS PRO THR SEQRES 18 E 240 VAL PHE THR ARG VAL SER ALA TYR ILE SER TRP ILE ASN SEQRES 19 E 240 ASN VAL ILE ALA SER ASN HET SO4 E 247 5 HET CA E 248 1 HET GIS E 269 19 HETNAM SO4 SULFATE ION HETNAM CA CALCIUM ION HETNAM GIS ETHYL-(2-CARBOXY-4-GUANIDINIUM-PHENYL)-CHLOROACETATE FORMUL 2 SO4 O4 S 2- FORMUL 3 CA CA 2+ FORMUL 4 GIS C12 H14 CL N3 O4 FORMUL 5 HOH *169(H2 O) HELIX 1 HA ASP E 164 SER E 170 1 7 HELIX 2 HB TYR E 234 ASN E 245 1HELICAL TAIL AT CARBOXY END 12 SHEET 1 A 7 SER E 29 SER E 36A 0 SHEET 2 A 7 SER E 37 ILE E 47 -1 SHEET 3 A 7 ASN E 50 ALA E 56 -1 SHEET 4 A 7 ASP E 102 GLN E 110 -1 SHEET 5 A 7 GLU E 80 HIS E 91 -1 SHEET 6 A 7 PHE E 65 GLY E 69 -1 SHEET 7 A 7 SER E 29 SER E 36A-1 SHEET 1 B 7 ASN E 133 THR E 144 0 SHEET 2 B 7 GLY E 149 VAL E 163 -1 SHEET 3 B 7 SER E 179 VAL E 188 -1 SHEET 4 B 7 ASN E 221 VAL E 231 -1 SHEET 5 B 7 HIS E 210 VAL E 216 -1 SHEET 6 B 7 SER E 195 CYS E 201 -1 SHEET 7 B 7 ASN E 133 THR E 144 -1 SHEET 1 C 3 GLY E 149 ALA E 152 0 SHEET 2 C 3 TRP E 141 LEU E 143 -1 SHEET 3 C 3 GLN E 192 ASP E 194 -1 SSBOND 1 CYS E 42 CYS E 58 1555 1555 2.06 SSBOND 2 CYS E 136 CYS E 201 1555 1555 2.05 SSBOND 3 CYS E 168 CYS E 182 1555 1555 2.03 SSBOND 4 CYS E 191 CYS E 220 1555 1555 2.06 LINK OG SER E 195 C1 GIS E 269 1555 1555 1.36 LINK CA CA E 248 OE1 GLU E 70 1555 1555 2.39 LINK CA CA E 248 O ASN E 72 1555 1555 2.42 LINK CA CA E 248 O GLN E 75 1555 1555 2.31 LINK CA CA E 248 OE2 GLU E 80 1555 1555 2.32 LINK CA CA E 248 OD1 ASN E 77 1555 1555 2.45 LINK CA CA E 248 O HOH E 327 1555 1555 2.44 SITE 1 CAT 4 HIS E 57 ASP E 102 SER E 195 SER E 214 SITE 1 AC1 7 GLY E 127 ARG E 145 ARG E 230 SER E 232 SITE 2 AC1 7 ALA E 233 HOH E 534 HOH E 579 SITE 1 AC2 6 GLU E 70 ASN E 72 GLN E 75 ASN E 77 SITE 2 AC2 6 GLU E 80 HOH E 327 SITE 1 AC3 11 THR E 41 CYS E 42 ALA E 55 HIS E 57 SITE 2 AC3 11 CYS E 58 CYS E 191 GLN E 192 SER E 195 SITE 3 AC3 11 GLY E 196 SER E 214 HOH E 628 CRYST1 50.620 58.260 75.240 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 0.019755 0.000000 0.000000 0.00000 SCALE2 0.000000 0.017164 0.000000 0.00000 SCALE3 0.000000 0.000000 0.013291 0.00000