PDB Short entry for 2A5I HEADER HYDROLASE 30-JUN-05 2A5I TITLE CRYSTAL STRUCTURES OF SARS CORONAVIRUS MAIN PEPTIDASE INHIBITED BY AN TITLE 2 AZA-PEPTIDE EPOXIDE IN THE SPACE GROUP C2 COMPND MOL_ID: 1; COMPND 2 MOLECULE: 3C-LIKE PEPTIDASE; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: 3CL-PRO, 3CLP, NSP2; COMPND 5 EC: 3.4.22.-; COMPND 6 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: SARS CORONAVIRUS; SOURCE 3 ORGANISM_TAXID: 227859; SOURCE 4 STRAIN: SARS; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 7 EXPRESSION_SYSTEM_STRAIN: GJ1158; SOURCE 8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 9 EXPRESSION_SYSTEM_PLASMID: PT7HSP2 KEYWDS CYSTEINE PEPTIDASE, 3C-LIKE, N-FINGER, CHYMOTRYPSIN-LIKE FOLD, LONG KEYWDS 2 LOOP, ALPHA-HELICAL DOMAIN, DIMER, CATALYTIC DYAD, SPECIFICITY KEYWDS 3 POCKETS, AZA-PEPTIDE EPOXIDE, SUBSTRATE-LIKE INHIBITOR, C-S COVALENT KEYWDS 4 BOND, EPOXIDE STEREOCHEMISTRY, HYDROLASE EXPDTA X-RAY DIFFRACTION AUTHOR T.-W.LEE,M.M.CHERNEY,C.HUITEMA,J.LIU,K.E.JAMES,J.C.POWERS,L.D.ELTIS, AUTHOR 2 M.N.JAMES REVDAT 5 23-AUG-23 2A5I 1 REMARK LINK REVDAT 4 13-JUL-11 2A5I 1 VERSN REVDAT 3 24-FEB-09 2A5I 1 VERSN REVDAT 2 01-NOV-05 2A5I 1 JRNL REVDAT 1 25-OCT-05 2A5I 0 JRNL AUTH T.-W.LEE,M.M.CHERNEY,C.HUITEMA,J.LIU,K.E.JAMES,J.C.POWERS, JRNL AUTH 2 L.D.ELTIS,M.N.JAMES JRNL TITL CRYSTAL STRUCTURES OF THE MAIN PEPTIDASE FROM THE SARS JRNL TITL 2 CORONAVIRUS INHIBITED BY A SUBSTRATE-LIKE AZA-PEPTIDE JRNL TITL 3 EPOXIDE JRNL REF J.MOL.BIOL. V. 353 1137 2005 JRNL REFN ISSN 0022-2836 JRNL PMID 16219322 JRNL DOI 10.1016/J.JMB.2005.09.004 REMARK 2 REMARK 2 RESOLUTION. 1.88 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC 5.2.0005 REMARK 3 AUTHORS : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER, REMARK 3 : NICHOLLS,WINN,LONG,VAGIN REMARK 3 REMARK 3 REFINEMENT TARGET : MAXIMUM LIKELIHOOD REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.88 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 40.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 94.2 REMARK 3 NUMBER OF REFLECTIONS : 32587 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) : 0.200 REMARK 3 R VALUE (WORKING SET) : 0.198 REMARK 3 FREE R VALUE : 0.242 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.000 REMARK 3 FREE R VALUE TEST SET COUNT : 1710 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) : 1.88 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.93 REMARK 3 REFLECTION IN BIN (WORKING SET) : 2224 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 87.70 REMARK 3 BIN R VALUE (WORKING SET) : 0.2800 REMARK 3 BIN FREE R VALUE SET COUNT : 115 REMARK 3 BIN FREE R VALUE : 0.3050 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 2371 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 56 REMARK 3 SOLVENT ATOMS : 256 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 43.97 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : -2.42000 REMARK 3 B22 (A**2) : 3.69000 REMARK 3 B33 (A**2) : -0.63000 REMARK 3 B12 (A**2) : 0.00000 REMARK 3 B13 (A**2) : 1.19000 REMARK 3 B23 (A**2) : 0.00000 REMARK 3 REMARK 3 ESTIMATED OVERALL COORDINATE ERROR. REMARK 3 ESU BASED ON R VALUE (A): 0.138 REMARK 3 ESU BASED ON FREE R VALUE (A): 0.137 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.124 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 8.384 REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : 0.966 REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : 0.951 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES COUNT RMS WEIGHT REMARK 3 BOND LENGTHS REFINED ATOMS (A): 2554 ; 0.022 ; 0.022 REMARK 3 BOND LENGTHS OTHERS (A): NULL ; NULL ; NULL REMARK 3 BOND ANGLES REFINED ATOMS (DEGREES): 3465 ; 2.342 ; 1.969 REMARK 3 BOND ANGLES OTHERS (DEGREES): NULL ; NULL ; NULL REMARK 3 TORSION ANGLES, PERIOD 1 (DEGREES): 313 ; 6.615 ; 5.000 REMARK 3 TORSION ANGLES, PERIOD 2 (DEGREES): 113 ;35.259 ;24.248 REMARK 3 TORSION ANGLES, PERIOD 3 (DEGREES): 421 ;16.830 ;15.000 REMARK 3 TORSION ANGLES, PERIOD 4 (DEGREES): 13 ;17.907 ;15.000 REMARK 3 CHIRAL-CENTER RESTRAINTS (A**3): 392 ; 0.192 ; 0.200 REMARK 3 GENERAL PLANES REFINED ATOMS (A): 1934 ; 0.018 ; 0.020 REMARK 3 GENERAL PLANES OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED CONTACTS REFINED ATOMS (A): 1304 ; 0.300 ; 0.350 REMARK 3 NON-BONDED CONTACTS OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED TORSION REFINED ATOMS (A): 1766 ; 0.340 ; 0.350 REMARK 3 NON-BONDED TORSION OTHERS (A): NULL ; NULL ; NULL REMARK 3 H-BOND (X...Y) REFINED ATOMS (A): 347 ; 0.261 ; 0.350 REMARK 3 H-BOND (X...Y) OTHERS (A): NULL ; NULL ; NULL REMARK 3 POTENTIAL METAL-ION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 POTENTIAL METAL-ION OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY VDW REFINED ATOMS (A): 56 ; 0.308 ; 0.350 REMARK 3 SYMMETRY VDW OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY H-BOND REFINED ATOMS (A): 23 ; 0.329 ; 0.350 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): 1590 ; 1.919 ; 2.000 REMARK 3 MAIN-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE REFINED ATOMS (A**2): 2528 ; 2.681 ; 3.000 REMARK 3 MAIN-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN BOND REFINED ATOMS (A**2): 1084 ; 2.002 ; 2.000 REMARK 3 SIDE-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE REFINED ATOMS (A**2): 937 ; 2.624 ; 3.000 REMARK 3 SIDE-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 LONG RANGE B REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 LONG RANGE B OTHER ATOMS (A**2): NULL ; NULL ; NULL 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 : NULL REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : 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: THE LOW REOLUTION LIMIT FOR DATA REMARK 3 COLLECTION AND PROCESSING WAS 50 A. FOR REFINEMENT, `LESS' LOW REMARK 3 RESOLUTION DATA AND THE LOW RESOLUTION LIMIT WAS SET UPWARDS TO REMARK 3 40 A. BUT THERE IS ACTUALLY NO DATA IN THE RESOLUTION RANGE 50 - REMARK 3 32.3 A. REMARK 4 REMARK 4 2A5I COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 13-JUL-05. REMARK 100 THE DEPOSITION ID IS D_1000033512. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 17-NOV-04 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 6.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : ALS REMARK 200 BEAMLINE : 8.3.1 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.115869 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : ADSC QUANTUM 210 REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 35576 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.880 REMARK 200 RESOLUTION RANGE LOW (A) : 50.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 96.3 REMARK 200 DATA REDUNDANCY : NULL REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : NULL REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.88 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.95 REMARK 200 COMPLETENESS FOR SHELL (%) : 90.0 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 <I/SIGMA(I)> FOR SHELL : NULL 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: PDB ENTRY 2A5A REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 63.31 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 3.35 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: AMMONIUM ACETATE, PEG 10000, ETHYLENE REMARK 280 GLYCOL, DIMETHYL SULFOXIDE, DITHIOTHREITOL, MES, PH 6.5, VAPOR REMARK 280 DIFFUSION, HANGING DROP, TEMPERATURE 298K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: C 1 2 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,Y,-Z REMARK 290 3555 X+1/2,Y+1/2,Z 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 0.00000 REMARK 290 SMTRY2 2 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 3 1.000000 0.000000 0.000000 53.35150 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 41.83850 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 4 -1.000000 0.000000 0.000000 53.35150 REMARK 290 SMTRY2 4 0.000000 1.000000 0.000000 41.83850 REMARK 290 SMTRY3 4 0.000000 0.000000 -1.000000 0.00000 REMARK 290 REMARK 290 REMARK: NULL REMARK 300 REMARK 300 BIOMOLECULE: 1, 2 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 PROTEASE IS A HOMODIMER. EACH ASYMMETRIC UNIT CONTAINS REMARK 300 ONLY ONE PROTOMER. THE OTHER PROTOMER OF THE DIMER IS GENERATED REMARK 300 FROM THE PROTOMER IN THE ASYMMETRIC UNIT BY THE OPERATION -X, Y, -Z. 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: 4690 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 26250 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -30.0 KCAL/MOL 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 350 BIOMT1 2 -1.000000 0.000000 0.000000 -14.26007 REMARK 350 BIOMT2 2 0.000000 1.000000 0.000000 0.00000 REMARK 350 BIOMT3 2 0.000000 0.000000 -1.000000 50.90227 REMARK 350 REMARK 350 BIOMOLECULE: 2 REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: MONOMERIC REMARK 350 SOFTWARE USED: PQS 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: CLOSE CONTACTS REMARK 500 REMARK 500 THE FOLLOWING ATOMS THAT ARE RELATED BY CRYSTALLOGRAPHIC REMARK 500 SYMMETRY ARE IN CLOSE CONTACT. AN ATOM LOCATED WITHIN 0.15 REMARK 500 ANGSTROMS OF A SYMMETRY RELATED ATOM IS ASSUMED TO BE ON A REMARK 500 SPECIAL POSITION AND IS, THEREFORE, LISTED IN REMARK 375 REMARK 500 INSTEAD OF REMARK 500. ATOMS WITH NON-BLANK ALTERNATE REMARK 500 LOCATION INDICATORS ARE NOT INCLUDED IN THE CALCULATIONS. REMARK 500 REMARK 500 DISTANCE CUTOFF: REMARK 500 2.2 ANGSTROMS FOR CONTACTS NOT INVOLVING HYDROGEN ATOMS REMARK 500 1.6 ANGSTROMS FOR CONTACTS INVOLVING HYDROGEN ATOMS REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI SSYMOP DISTANCE REMARK 500 O HOH A 357 O HOH A 515 2556 2.15 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 CYS A 117 CB CYS A 117 SG -0.109 REMARK 500 CYS A 128 CB CYS A 128 SG -0.109 REMARK 500 GLU A 240 CB GLU A 240 CG -0.130 REMARK 500 GLU A 288 CB GLU A 288 CG -0.114 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 LEU A 67 CA - CB - CG ANGL. DEV. = 17.3 DEGREES REMARK 500 LEU A 67 CB - CG - CD2 ANGL. DEV. = -10.7 DEGREES REMARK 500 ASP A 92 CB - CA - C ANGL. DEV. = -17.9 DEGREES REMARK 500 MET A 162 CG - SD - CE ANGL. DEV. = -10.8 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 ASP A 33 -135.84 69.28 REMARK 500 ASP A 34 41.53 -95.80 REMARK 500 ASN A 84 -122.24 53.33 REMARK 500 PRO A 108 155.64 -48.48 REMARK 500 TYR A 154 -129.89 53.93 REMARK 500 TYR A 154 -125.85 53.93 REMARK 500 HIS A 164 -54.13 -132.24 REMARK 500 ASN A 238 37.09 78.36 REMARK 500 ASN A 277 93.91 26.65 REMARK 500 ILE A 286 128.70 78.29 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 ASP A 92 12.04 REMARK 500 GLY A 146 11.76 REMARK 500 REMARK 500 REMARK: NULL REMARK 600 REMARK 600 HETEROGEN BEFORE BINDING TO THE PEPTIDASE, CBM, CBO AND OBN FORM REMARK 600 AN EPOXIDE RING IN AZP. UPON BINDING TO THE PEPTIDASE, CYS145 SG REMARK 600 NUCLEOPHILLICALLY ATTACKS CBM, RESULTING IN THE OPENING OF THE REMARK 600 RING AND THE INVERSION OF THE CONFIGURATIONS OF CBM AND CBO. REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE AZP A 307 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE EDO A 308 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE GOL A 309 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 2A5A RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF SARS CORONAVIRUS MAIN PEPTIDASE UNBOUND IN THE REMARK 900 SPACE GROUP C2 REMARK 900 RELATED ID: 2A5K RELATED DB: PDB DBREF 2A5I A 1 306 UNP P59641 R1AB_CVHSA 3241 3546 SEQRES 1 A 306 SER GLY PHE ARG LYS MET ALA PHE PRO SER GLY LYS VAL SEQRES 2 A 306 GLU GLY CYS MET VAL GLN VAL THR CYS GLY THR THR THR SEQRES 3 A 306 LEU ASN GLY LEU TRP LEU ASP ASP THR VAL TYR CYS PRO SEQRES 4 A 306 ARG HIS VAL ILE CYS THR ALA GLU ASP MET LEU ASN PRO SEQRES 5 A 306 ASN TYR GLU ASP LEU LEU ILE ARG LYS SER ASN HIS SER SEQRES 6 A 306 PHE LEU VAL GLN ALA GLY ASN VAL GLN LEU ARG VAL ILE SEQRES 7 A 306 GLY HIS SER MET GLN ASN CYS LEU LEU ARG LEU LYS VAL SEQRES 8 A 306 ASP THR SER ASN PRO LYS THR PRO LYS TYR LYS PHE VAL SEQRES 9 A 306 ARG ILE GLN PRO GLY GLN THR PHE SER VAL LEU ALA CYS SEQRES 10 A 306 TYR ASN GLY SER PRO SER GLY VAL TYR GLN CYS ALA MET SEQRES 11 A 306 ARG PRO ASN HIS THR ILE LYS GLY SER PHE LEU ASN GLY SEQRES 12 A 306 SER CYS GLY SER VAL GLY PHE ASN ILE ASP TYR ASP CYS SEQRES 13 A 306 VAL SER PHE CYS TYR MET HIS HIS MET GLU LEU PRO THR SEQRES 14 A 306 GLY VAL HIS ALA GLY THR ASP LEU GLU GLY LYS PHE TYR SEQRES 15 A 306 GLY PRO PHE VAL ASP ARG GLN THR ALA GLN ALA ALA GLY SEQRES 16 A 306 THR ASP THR THR ILE THR LEU ASN VAL LEU ALA TRP LEU SEQRES 17 A 306 TYR ALA ALA VAL ILE ASN GLY ASP ARG TRP PHE LEU ASN SEQRES 18 A 306 ARG PHE THR THR THR LEU ASN ASP PHE ASN LEU VAL ALA SEQRES 19 A 306 MET LYS TYR ASN TYR GLU PRO LEU THR GLN ASP HIS VAL SEQRES 20 A 306 ASP ILE LEU GLY PRO LEU SER ALA GLN THR GLY ILE ALA SEQRES 21 A 306 VAL LEU ASP MET CYS ALA ALA LEU LYS GLU LEU LEU GLN SEQRES 22 A 306 ASN GLY MET ASN GLY ARG THR ILE LEU GLY SER THR ILE SEQRES 23 A 306 LEU GLU ASP GLU PHE THR PRO PHE ASP VAL VAL ARG GLN SEQRES 24 A 306 CYS SER GLY VAL THR PHE GLN HET AZP A 307 46 HET EDO A 308 8 HET GOL A 309 6 HETNAM AZP (5S,8S,14R)-ETHYL 11-(3-AMINO-3-OXOPROPYL)-8-BENZYL-14- HETNAM 2 AZP HYDROXY-5-ISOBUTYL-3,6,9,12-TETRAOXO-1-PHENYL-2-OXA-4, HETNAM 3 AZP 7,10,11-TETRAAZAPENTADECAN-15-OATE HETNAM EDO 1,2-ETHANEDIOL HETNAM GOL GLYCEROL HETSYN EDO ETHYLENE GLYCOL HETSYN GOL GLYCERIN; PROPANE-1,2,3-TRIOL FORMUL 2 AZP C32 H43 N5 O9 FORMUL 3 EDO C2 H6 O2 FORMUL 4 GOL C3 H8 O3 FORMUL 5 HOH *256(H2 O) HELIX 1 1 SER A 10 GLY A 15 1 6 HELIX 2 2 HIS A 41 CYS A 44 5 4 HELIX 3 3 ASN A 53 ARG A 60 1 8 HELIX 4 4 SER A 62 HIS A 64 5 3 HELIX 5 5 ILE A 200 ASN A 214 1 15 HELIX 6 6 THR A 226 ASN A 238 1 13 HELIX 7 7 THR A 243 LEU A 250 1 8 HELIX 8 8 LEU A 250 GLY A 258 1 9 HELIX 9 9 ALA A 260 GLY A 275 1 16 HELIX 10 10 THR A 292 CYS A 300 1 9 SHEET 1 A 7 VAL A 73 LEU A 75 0 SHEET 2 A 7 PHE A 66 ALA A 70 -1 N ALA A 70 O VAL A 73 SHEET 3 A 7 MET A 17 CYS A 22 -1 N GLN A 19 O GLN A 69 SHEET 4 A 7 THR A 25 LEU A 32 -1 O GLY A 29 N VAL A 18 SHEET 5 A 7 THR A 35 PRO A 39 -1 O TYR A 37 N LEU A 30 SHEET 6 A 7 LEU A 86 VAL A 91 -1 O LEU A 89 N VAL A 36 SHEET 7 A 7 VAL A 77 GLN A 83 -1 N ILE A 78 O LYS A 90 SHEET 1 B 5 TYR A 101 PHE A 103 0 SHEET 2 B 5 CYS A 156 GLU A 166 1 O PHE A 159 N LYS A 102 SHEET 3 B 5 VAL A 148 ASP A 153 -1 N ASN A 151 O SER A 158 SHEET 4 B 5 THR A 111 TYR A 118 -1 N SER A 113 O PHE A 150 SHEET 5 B 5 SER A 121 ALA A 129 -1 O SER A 123 N ALA A 116 SHEET 1 C 3 TYR A 101 PHE A 103 0 SHEET 2 C 3 CYS A 156 GLU A 166 1 O PHE A 159 N LYS A 102 SHEET 3 C 3 HIS A 172 THR A 175 -1 O ALA A 173 N MET A 165 LINK SG CYS A 145 CBM AZP A 307 1555 1555 2.01 LINK O1 AEDO A 308 O3 GOL A 309 2556 1555 1.71 LINK O1 AEDO A 308 O3 GOL A 309 1555 2556 1.71 SITE 1 AC1 24 THR A 25 HIS A 41 MET A 49 TYR A 54 SITE 2 AC1 24 PHE A 140 LEU A 141 ASN A 142 GLY A 143 SITE 3 AC1 24 SER A 144 CYS A 145 HIS A 163 HIS A 164 SITE 4 AC1 24 MET A 165 GLU A 166 PRO A 168 HIS A 172 SITE 5 AC1 24 ASP A 187 ARG A 188 GLN A 189 THR A 190 SITE 6 AC1 24 GLN A 192 HOH A 324 HOH A 369 HOH A 416 SITE 1 AC2 4 ARG A 4 LYS A 5 GLN A 127 GOL A 309 SITE 1 AC3 6 LYS A 5 ALA A 7 VAL A 125 TYR A 126 SITE 2 AC3 6 GLN A 127 EDO A 308 CRYST1 106.703 83.677 52.862 90.00 105.65 90.00 C 1 2 1 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 0.009372 0.000000 0.002625 0.00000 SCALE2 0.000000 0.011951 0.000000 0.00000 SCALE3 0.000000 0.000000 0.019645 0.00000