2BD3 - Header Asymmetric Unit

HEADER HYDROLASE 20-OCT-05 2BD3

TITLE PORCINE PANCREATIC ELASTASE COMPLEXED WITH BETA-CASOMORPHIN-7 AND LYS- TITLE 2 ALA-NH2 AT PH 5.0

COMPND MOL_ID: 1; COMPND 2 MOLECULE: BETA-CASOMORPHIN-7; COMPND 3 CHAIN: P; COMPND 4 ENGINEERED: YES; COMPND 5 MOL_ID: 2; COMPND 6 MOLECULE: ELASTASE-1; COMPND 7 CHAIN: A; COMPND 8 EC: 3.4.21.36

SOURCE MOL_ID: 1; SOURCE 2 SYNTHETIC: YES; SOURCE 3 OTHER_DETAILS: SYNTHETIC PEPTIDE; SOURCE 4 MOL_ID: 2; SOURCE 5 ORGANISM_SCIENTIFIC: SUS SCROFA; SOURCE 6 ORGANISM_COMMON: PIG; SOURCE 7 ORGANISM_TAXID: 9823

KEYWDS SERINE PROTEINASE, HYDROLASE

EXPDTA X-RAY DIFFRACTION

AUTHOR B.LIU,C.J.SCHOFIELD,R.C.WILMOUTH

REVDAT 3 13-JUL-11 2BD3 1 VERSN REVDAT 2 22-JUL-08 2BD3 1 JRNL VERSN REVDAT 1 30-MAY-06 2BD3 0

JRNL AUTH B.LIU,C.J.SCHOFIELD,R.C.WILMOUTH JRNL TITL STRUCTURAL ANALYSES ON INTERMEDIATES IN SERINE PROTEASE JRNL TITL 2 CATALYSIS JRNL REF J.BIOL.CHEM. V. 281 24024 2006 JRNL REFN ISSN 0021-9258 JRNL PMID 16754679 JRNL DOI 10.1074/JBC.M600495200

REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH R.C.WILMOUTH,I.J.CLIFTON,C.V.ROBINSON,P.L.ROACH,R.T.APLIN, REMARK 1 AUTH 2 N.J.WESTWOOD,J.HAJDU,C.J.SCHOFIELD REMARK 1 TITL STRUCTURE OF A SPECIFIC ACYL-ENZYME COMPLEX FORMED BETWEEN REMARK 1 TITL 2 BETA-CASOMORPHIN-7 AND PORCINE PANCREATIC ELASTASE REMARK 1 REF NAT.STRUCT.BIOL. V. 4 456 1997 REMARK 1 REFN ISSN 1072-8368 REMARK 1 PMID 9187653 REMARK 1 DOI 10.1038/NSB0697-456 REMARK 1 REFERENCE 2 REMARK 1 AUTH R.C.WILMOUTH,K.EDMAN,R.NEUTZE,P.A.WRIGHT,I.J.CLIFTON, REMARK 1 AUTH 2 T.R.SCHNEIDER,C.J.SCHOFIELD,J.HAJDU REMARK 1 TITL X-RAY SNAPSHOTS OF SERINE PROTEASE CATALYSIS REVEAL A REMARK 1 TITL 2 TETRAHEDRAL INTERMEDIATE REMARK 1 REF NAT.STRUCT.BIOL. V. 8 689 2001 REMARK 1 REFN ISSN 1072-8368 REMARK 1 PMID 11473259 REMARK 1 DOI 10.1038/90401

REMARK 2 REMARK 2 RESOLUTION. 1.60 ANGSTROMS.

REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC 5.2.0005 REMARK 3 AUTHORS : MURSHUDOV,VAGIN,DODSON REMARK 3 REMARK 3 REFINEMENT TARGET : MAXIMUM LIKELIHOOD REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.60 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 18.90 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 98.8 REMARK 3 NUMBER OF REFLECTIONS : 29191 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : THROUGHOUT REMARK 3 FREE R VALUE TEST SET SELECTION : RANDOM REMARK 3 R VALUE (WORKING + TEST SET) : 0.172 REMARK 3 R VALUE (WORKING SET) : 0.170 REMARK 3 FREE R VALUE : 0.201 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.100 REMARK 3 FREE R VALUE TEST SET COUNT : 1486 REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : 20 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 1.60 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.64 REMARK 3 REFLECTION IN BIN (WORKING SET) : 1952 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 97.14 REMARK 3 BIN R VALUE (WORKING SET) : 0.1390 REMARK 3 BIN FREE R VALUE SET COUNT : 120 REMARK 3 BIN FREE R VALUE : 0.2290 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1833 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 13 REMARK 3 SOLVENT ATOMS : 129 REMARK 3 REMARK 3 B VALUES. REMARK 3 B VALUE TYPE : LIKELY RESIDUAL REMARK 3 FROM WILSON PLOT (A**2) : 15.10 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 23.24 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 0.63000 REMARK 3 B22 (A**2) : -0.03000 REMARK 3 B33 (A**2) : -0.60000 REMARK 3 B12 (A**2) : 0.00000 REMARK 3 B13 (A**2) : 0.00000 REMARK 3 B23 (A**2) : 0.00000 REMARK 3 REMARK 3 ESTIMATED OVERALL COORDINATE ERROR. REMARK 3 ESU BASED ON R VALUE (A): 0.088 REMARK 3 ESU BASED ON FREE R VALUE (A): 0.088 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.050 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 2.742 REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : 0.958 REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : 0.947 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES COUNT RMS WEIGHT REMARK 3 BOND LENGTHS REFINED ATOMS (A): 1891 ; 0.015 ; 0.021 REMARK 3 BOND LENGTHS OTHERS (A): NULL ; NULL ; NULL REMARK 3 BOND ANGLES REFINED ATOMS (DEGREES): 2590 ; 1.508 ; 1.921 REMARK 3 BOND ANGLES OTHERS (DEGREES): NULL ; NULL ; NULL REMARK 3 TORSION ANGLES, PERIOD 1 (DEGREES): 243 ; 5.770 ; 5.000 REMARK 3 TORSION ANGLES, PERIOD 2 (DEGREES): 79 ;35.527 ;24.304 REMARK 3 TORSION ANGLES, PERIOD 3 (DEGREES): 269 ;12.155 ;15.000 REMARK 3 TORSION ANGLES, PERIOD 4 (DEGREES): 9 ;22.653 ;15.000 REMARK 3 CHIRAL-CENTER RESTRAINTS (A**3): 296 ; 0.114 ; 0.200 REMARK 3 GENERAL PLANES REFINED ATOMS (A): 1440 ; 0.007 ; 0.020 REMARK 3 GENERAL PLANES OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED CONTACTS REFINED ATOMS (A): 880 ; 0.207 ; 0.200 REMARK 3 NON-BONDED CONTACTS OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED TORSION REFINED ATOMS (A): 1315 ; 0.310 ; 0.200 REMARK 3 NON-BONDED TORSION OTHERS (A): NULL ; NULL ; NULL REMARK 3 H-BOND (X...Y) REFINED ATOMS (A): 113 ; 0.127 ; 0.200 REMARK 3 H-BOND (X...Y) OTHERS (A): NULL ; NULL ; NULL REMARK 3 POTENTIAL METAL-ION REFINED ATOMS (A): 6 ; 0.100 ; 0.200 REMARK 3 POTENTIAL METAL-ION OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY VDW REFINED ATOMS (A): 31 ; 0.288 ; 0.200 REMARK 3 SYMMETRY VDW OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY H-BOND REFINED ATOMS (A): 12 ; 0.168 ; 0.200 REMARK 3 SYMMETRY H-BOND OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY METAL-ION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY METAL-ION OTHERS (A): NULL ; NULL ; NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. COUNT RMS WEIGHT REMARK 3 MAIN-CHAIN BOND REFINED ATOMS (A**2): 1230 ; 2.105 ; 2.000 REMARK 3 MAIN-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE REFINED ATOMS (A**2): 1949 ; 2.884 ; 3.000 REMARK 3 SIDE-CHAIN BOND REFINED ATOMS (A**2): 765 ; 4.067 ; 4.000 REMARK 3 SIDE-CHAIN ANGLE REFINED ATOMS (A**2): 641 ; 4.712 ; 6.000 REMARK 3 REMARK 3 ANISOTROPIC THERMAL FACTOR RESTRAINTS. COUNT RMS WEIGHT REMARK 3 RIGID-BOND RESTRAINTS (A**2): NULL ; NULL ; NULL REMARK 3 SPHERICITY; FREE ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SPHERICITY; BONDED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 REMARK 3 NCS RESTRAINTS STATISTICS REMARK 3 NUMBER OF DIFFERENT NCS GROUPS : NULL REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : 1 REMARK 3 REMARK 3 TLS GROUP : 1 REMARK 3 NUMBER OF COMPONENTS GROUP : 1 REMARK 3 COMPONENTS C SSSEQI TO C SSSEQI REMARK 3 RESIDUE RANGE : A 16 A 245 REMARK 3 ORIGIN FOR THE GROUP (A): -4.1930 28.2750 42.9970 REMARK 3 T TENSOR REMARK 3 T11: -0.1104 T22: -0.1019 REMARK 3 T33: -0.0709 T12: -0.0004 REMARK 3 T13: -0.0051 T23: -0.0107 REMARK 3 L TENSOR REMARK 3 L11: 1.0608 L22: 0.6993 REMARK 3 L33: 1.4967 L12: 0.0959 REMARK 3 L13: -0.1366 L23: 0.0188 REMARK 3 S TENSOR REMARK 3 S11: -0.0152 S12: 0.0124 S13: 0.0070 REMARK 3 S21: 0.0039 S22: -0.0099 S23: -0.0099 REMARK 3 S31: 0.0526 S32: -0.0211 S33: 0.0251 REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : BABINET MODEL WITH MASK REMARK 3 PARAMETERS FOR MASK CALCULATION REMARK 3 VDW PROBE RADIUS : 1.20 REMARK 3 ION PROBE RADIUS : 0.80 REMARK 3 SHRINKAGE RADIUS : 0.80 REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL

REMARK 4 REMARK 4 2BD3 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11

REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 26-OCT-05. REMARK 100 THE RCSB ID CODE IS RCSB034952.

REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 18-JUN-05 REMARK 200 TEMPERATURE (KELVIN) : 127 REMARK 200 PH : 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 MICROMAX-007 REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : NULL REMARK 200 MONOCHROMATOR : OSMIC MIRRORS REMARK 200 OPTICS : OSMIC MIRRORS REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : RIGAKU RAXIS IV REMARK 200 INTENSITY-INTEGRATION SOFTWARE : MOSFLM REMARK 200 DATA SCALING SOFTWARE : CCP4 (SCALA) REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 29238 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.600 REMARK 200 RESOLUTION RANGE LOW (A) : 18.900 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.0 REMARK 200 DATA REDUNDANCY : 4.300 REMARK 200 R MERGE (I) : 0.03600 REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 28.7000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.60 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.69 REMARK 200 COMPLETENESS FOR SHELL (%) : 97.7 REMARK 200 DATA REDUNDANCY IN SHELL : 4.20 REMARK 200 R MERGE FOR SHELL (I) : 0.11300 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 <I/SIGMA(I)> FOR SHELL : 11.800 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: NULL REMARK 200 STARTING MODEL: 3EST REMARK 200 REMARK 200 REMARK: NULL

REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 39.55 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.03 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 25MM SODIUM SULPHATE, 25MM SODIUM REMARK 280 ACETATE (PH 5.0), 25 MG/ML PPE AND 17.5 MG/ML BCM7, AND THEN REMARK 280 SOAKED WITH LYS-ALA-NH2 (50MG/ML) IN 250MM SODIUM ACETATE (PH REMARK 280 5.0) (5 MICROLITRES) FOR 30 MIN, VAPOR DIFFUSION, HANGING DROP, REMARK 280 TEMPERATURE 294K

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 25.20350 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 37.36250 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 28.95400 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 37.36250 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 25.20350 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 28.95400 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 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 1030 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 10220 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -31.0 KCAL/MOL REMARK 350 APPLY THE FOLLOWING TO CHAINS: P, 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 465 REMARK 465 MISSING RESIDUES REMARK 465 THE FOLLOWING RESIDUES WERE NOT LOCATED IN THE REMARK 465 EXPERIMENT. (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN REMARK 465 IDENTIFIER; SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.) REMARK 465 REMARK 465 M RES C SSSEQI REMARK 465 TYR P 1 REMARK 465 PRO P 2 REMARK 465 PHE P 3

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 GLN A 23 CD OE1 NE2 REMARK 470 ARG A 36 CD NE CZ NH1 NH2 REMARK 470 ARG A 61 CG CD NE CZ NH1 NH2 REMARK 470 ARG A 125 CG CD NE CZ NH1 NH2

REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS IN SAME ASYMMETRIC UNIT REMARK 500 REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT. REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI DISTANCE REMARK 500 O ILE P 7 N LYS P 1001 2.16 REMARK 500 REMARK 500 REMARK: NULL 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 ILE P 7 C ILE P 7 O 0.167 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 ILE P 7 CA - C - O ANGL. DEV. = -13.1 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 HIS A 71 -53.58 -129.01 REMARK 500 ASP A 98 64.05 -150.33 REMARK 500 ASN A 115 -165.77 -166.18 REMARK 500 TYR A 171 -119.42 -91.97 REMARK 500 REMARK 500 REMARK: NULL

REMARK 600 REMARK 600 HETEROGEN REMARK 600 OG SER A 195, C ILE P 7 AND N LYS 1001 ARE COVALENTLY REMARK 600 LINKED WITH C ILE P 7 HAVING TETRAHEDRAL GEOMETRY.

REMARK 610 REMARK 610 MISSING HETEROATOM REMARK 610 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (M=MODEL NUMBER; REMARK 610 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; REMARK 610 I=INSERTION CODE): REMARK 610 M RES C SSEQI REMARK 610 LYS P 1001 REMARK 610 ALA A 1002

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 A 260 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 GLU A 70 OE1 REMARK 620 2 GLN A 75 O 156.9 REMARK 620 3 GLU A 80 OE1 94.5 94.2 REMARK 620 4 GLU A 70 OE2 47.8 148.4 103.8 REMARK 620 5 ASN A 72 O 85.7 83.0 172.5 81.9 REMARK 620 6 HOH A1110 O 123.7 77.4 91.1 76.5 95.0 REMARK 620 7 ASN A 77 ND2 71.1 88.1 86.8 118.2 86.1 165.2 REMARK 620 N 1 2 3 4 5 6

REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 260 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 270 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE LYS P 1001 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ALA A 1002

REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1HAX RELATED DB: PDB REMARK 900 PORCINE PANCREATIC ELASTASE COMPLEXED WITH BETA-CASOMORPHIN REMARK 900 -7 REMARK 900 RELATED ID: 1HAY RELATED DB: PDB REMARK 900 RELATED ID: 1HAZ RELATED DB: PDB REMARK 900 RELATED ID: 1QIX RELATED DB: PDB REMARK 900 RELATED ID: 2BB4 RELATED DB: PDB REMARK 900 RELATED ID: 2BD2 RELATED DB: PDB REMARK 900 RELATED ID: 2BD4 RELATED DB: PDB REMARK 900 RELATED ID: 2BD5 RELATED DB: PDB REMARK 900 RELATED ID: 2BD6 RELATED DB: PDB REMARK 900 RELATED ID: 2BD7 RELATED DB: PDB REMARK 900 RELATED ID: 2BD8 RELATED DB: PDB REMARK 900 RELATED ID: 2BD9 RELATED DB: PDB REMARK 900 RELATED ID: 2BDA RELATED DB: PDB REMARK 900 RELATED ID: 2BDB RELATED DB: PDB REMARK 900 RELATED ID: 2BDC RELATED DB: PDB

REMARK 999 REMARK 999 SEQUENCE REMARK 999 THIS CONFLICT IS BASED ON THE REFERENCE 3 REMARK 999 IN SEQUENCE DATABASE, P00772 IN SWISS-PROT.

DBREF 2BD3 A 16 245 UNP P00772 ELA1_PIG 27 266 DBREF 2BD3 P 1 7 PDB 2BD3 2BD3 1 7

SEQADV 2BD3 ASN A 77 UNP P00772 ASP 92 SEE REMARK 999

SEQRES 1 P 7 TYR PRO PHE VAL GLU PRO ILE SEQRES 1 A 240 VAL VAL GLY GLY THR GLU ALA GLN ARG ASN SER TRP PRO SEQRES 2 A 240 SER GLN ILE SER LEU GLN TYR ARG SER GLY SER SER TRP SEQRES 3 A 240 ALA HIS THR CYS GLY GLY THR LEU ILE ARG GLN ASN TRP SEQRES 4 A 240 VAL MET THR ALA ALA HIS CYS VAL ASP ARG GLU LEU THR SEQRES 5 A 240 PHE ARG VAL VAL VAL GLY GLU HIS ASN LEU ASN GLN ASN SEQRES 6 A 240 ASN GLY THR GLU GLN TYR VAL GLY VAL GLN LYS ILE VAL SEQRES 7 A 240 VAL HIS PRO TYR TRP ASN THR ASP ASP VAL ALA ALA GLY SEQRES 8 A 240 TYR ASP ILE ALA LEU LEU ARG LEU ALA GLN SER VAL THR SEQRES 9 A 240 LEU ASN SER TYR VAL GLN LEU GLY VAL LEU PRO ARG ALA SEQRES 10 A 240 GLY THR ILE LEU ALA ASN ASN SER PRO CYS TYR ILE THR SEQRES 11 A 240 GLY TRP GLY LEU THR ARG THR ASN GLY GLN LEU ALA GLN SEQRES 12 A 240 THR LEU GLN GLN ALA TYR LEU PRO THR VAL ASP TYR ALA SEQRES 13 A 240 ILE CYS SER SER SER SER TYR TRP GLY SER THR VAL LYS SEQRES 14 A 240 ASN SER MET VAL CYS ALA GLY GLY ASP GLY VAL ARG SER SEQRES 15 A 240 GLY CYS GLN GLY ASP SER GLY GLY PRO LEU HIS CYS LEU SEQRES 16 A 240 VAL ASN GLY GLN TYR ALA VAL HIS GLY VAL THR SER PHE SEQRES 17 A 240 VAL SER ARG LEU GLY CYS ASN VAL THR ARG LYS PRO THR SEQRES 18 A 240 VAL PHE THR ARG VAL SER ALA TYR ILE SER TRP ILE ASN SEQRES 19 A 240 ASN VAL ILE ALA SER ASN

HET CA A 260 1 HET SO4 A 270 5 HET LYS P1001 5 HET ALA A1002 2

HETNAM CA CALCIUM ION HETNAM SO4 SULFATE ION HETNAM LYS LYSINE HETNAM ALA ALANINE

FORMUL 3 CA CA 2+ FORMUL 4 SO4 O4 S 2- FORMUL 5 LYS C6 H15 N2 O2 1+ FORMUL 6 ALA C3 H7 N O2 FORMUL 7 HOH *129(H2 O)

HELIX 1 1 ALA A 55 ASP A 60 5 6 HELIX 2 2 ASP A 98 GLY A 100 5 5 HELIX 3 3 ASP A 164 SER A 169 1 6 HELIX 4 4 TRP A 172 VAL A 176 5 5 HELIX 5 5 TYR A 234 ASN A 245 1 12

SHEET 1 A 6 GLU P 5 PRO P 6 0 SHEET 2 A 6 GLN A 206 VAL A 216 -1 O VAL A 216 N GLU P 5 SHEET 3 A 6 PRO A 198 VAL A 203 -1 N CYS A 201 O ALA A 208 SHEET 4 A 6 CYS A 136 GLY A 140 -1 N TYR A 137 O HIS A 200 SHEET 5 A 6 GLN A 156 TYR A 159 -1 O ALA A 158 N ILE A 138 SHEET 6 A 6 THR A 20 GLU A 21 -1 N THR A 20 O GLN A 157 SHEET 1 B 5 GLU P 5 PRO P 6 0 SHEET 2 B 5 GLN A 206 VAL A 216 -1 O VAL A 216 N GLU P 5 SHEET 3 B 5 THR A 226 ARG A 230 -1 O VAL A 227 N PHE A 215 SHEET 4 B 5 MET A 180 ALA A 183 -1 N VAL A 181 O PHE A 228 SHEET 5 B 5 THR A 162 VAL A 163 -1 N VAL A 163 O CYS A 182 SHEET 1 C 7 GLN A 30 SER A 36A 0 SHEET 2 C 7 SER A 37 ARG A 48 -1 O SER A 37 N SER A 36A SHEET 3 C 7 TRP A 51 THR A 54 -1 O MET A 53 N THR A 45 SHEET 4 C 7 ALA A 104 LEU A 108 -1 O LEU A 106 N VAL A 52 SHEET 5 C 7 GLN A 81 VAL A 90 -1 N VAL A 89 O LEU A 105 SHEET 6 C 7 PHE A 65 VAL A 68 -1 N VAL A 66 O VAL A 83 SHEET 7 C 7 GLN A 30 SER A 36A-1 N GLN A 34 O ARG A 65A

SSBOND 1 CYS A 42 CYS A 58 1555 1555 2.05 SSBOND 2 CYS A 136 CYS A 201 1555 1555 2.03 SSBOND 3 CYS A 168 CYS A 182 1555 1555 2.04 SSBOND 4 CYS A 191 CYS A 220 1555 1555 2.05

LINK OG SER A 195 C ILE P 7 1555 1555 1.39 LINK C ILE P 7 N LYS P1001 1555 1555 1.44 LINK C LYS P1001 N ALA A1002 1555 1555 1.33 LINK CA CA A 260 OE1 GLU A 70 1555 1555 2.29 LINK CA CA A 260 O GLN A 75 1555 1555 2.31 LINK CA CA A 260 OE1 GLU A 80 1555 1555 2.32 LINK CA CA A 260 OE2 GLU A 70 1555 1555 2.86 LINK CA CA A 260 O ASN A 72 1555 1555 2.29 LINK CA CA A 260 O HOH A1110 1555 1555 2.40 LINK CA CA A 260 ND2 ASN A 77 1555 1555 2.40

SITE 1 AC1 6 GLU A 70 ASN A 72 GLN A 75 ASN A 77 SITE 2 AC1 6 GLU A 80 HOH A1110 SITE 1 AC2 6 GLY A 127 ARG A 145 ARG A 230 SER A 232 SITE 2 AC2 6 ALA A 233 HOH A1032 SITE 1 AC3 7 THR A 41 HIS A 57 GLN A 192 GLY A 193 SITE 2 AC3 7 SER A 195 ALA A1002 ILE P 7 SITE 1 AC4 3 THR A 41 GLY A 193 LYS P1001

CRYST1 50.407 57.908 74.725 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 0.019840 0.000000 0.000000 0.00000

SCALE2 0.000000 0.017270 0.000000 0.00000

SCALE3 0.000000 0.000000 0.013380 0.00000