HEADER VIRAL PROTEIN, HYDROLASE/INHIBITOR 08-MAY-21 7MRR TITLE CRYSTAL STRUCTURE OF SARS-COV-2 MAIN PROTEASE (3CLPRO/MPRO) IN COMPLEX TITLE 2 WITH COVALENT INHIBITOR LEUPEPTIN COMPND MOL_ID: 1; COMPND 2 MOLECULE: 3C-LIKE PROTEINASE; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: 3CL-PRO,3CLP,MAIN PROTEASE,MPRO,NON-STRUCTURAL PROTEIN 5, COMPND 5 NSP5,SARS CORONAVIRUS MAIN PROTEINASE; COMPND 6 EC: 3.4.22.69; COMPND 7 ENGINEERED: YES; COMPND 8 MOL_ID: 2; COMPND 9 MOLECULE: LEUPEPTIN; COMPND 10 CHAIN: B; COMPND 11 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: SEVERE ACUTE RESPIRATORY SYNDROME CORONAVIRUS SOURCE 3 2; SOURCE 4 ORGANISM_COMMON: 2019-NCOV, SARS-COV-2; SOURCE 5 ORGANISM_TAXID: 2697049; SOURCE 6 GENE: REP, 1A-1B; SOURCE 7 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 8 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 9 MOL_ID: 2; SOURCE 10 SYNTHETIC: YES; SOURCE 11 ORGANISM_SCIENTIFIC: SYNTHETIC CONSTRUCT; SOURCE 12 ORGANISM_TAXID: 32630 KEYWDS SARS-COV-2, MAIN PROTEASE, 3CLPRO/MPRO, LEUPEPTIN, VIRAL PROTEIN, KEYWDS 2 INHIBITOR, HYDROLASE-INHIBITOR COMPLEX EXPDTA X-RAY DIFFRACTION AUTHOR B.ANDI,D.KUMARAN,A.S.SOARES,D.F.KREITLER,W.SHI,J.JAKONCIC,M.R.FUCHS, AUTHOR 2 J.KEEREETAWEEP,J.SHANKLIN,S.MCSWEENEY REVDAT 4 30-OCT-24 7MRR 1 REMARK REVDAT 3 18-OCT-23 7MRR 1 REMARK REVDAT 2 27-JUL-22 7MRR 1 JRNL REVDAT 1 19-MAY-21 7MRR 0 JRNL AUTH B.ANDI,D.KUMARAN,D.F.KREITLER,A.S.SOARES,J.KEEREETAWEEP, JRNL AUTH 2 J.JAKONCIC,E.O.LAZO,W.SHI,M.R.FUCHS,R.M.SWEET,J.SHANKLIN, JRNL AUTH 3 P.D.ADAMS,J.G.SCHMIDT,M.S.HEAD,S.MCSWEENEY JRNL TITL HEPATITIS C VIRUS NS3/4A INHIBITORS AND OTHER DRUG-LIKE JRNL TITL 2 COMPOUNDS AS COVALENT BINDERS OF SARS-COV-2 MAIN PROTEASE. JRNL REF SCI REP V. 12 12197 2022 JRNL REFN ESSN 2045-2322 JRNL PMID 35842458 JRNL DOI 10.1038/S41598-022-15930-Z REMARK 2 REMARK 2 RESOLUTION. 2.32 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC 5.8.0267 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) : 2.32 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 27.65 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 98.3 REMARK 3 NUMBER OF REFLECTIONS : 10939 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) : 0.196 REMARK 3 R VALUE (WORKING SET) : 0.194 REMARK 3 FREE R VALUE : 0.246 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 4.500 REMARK 3 FREE R VALUE TEST SET COUNT : 510 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) : 2.32 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.38 REMARK 3 REFLECTION IN BIN (WORKING SET) : 639 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 79.19 REMARK 3 BIN R VALUE (WORKING SET) : 0.3670 REMARK 3 BIN FREE R VALUE SET COUNT : 27 REMARK 3 BIN FREE R VALUE : 0.3930 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 2397 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 16 REMARK 3 SOLVENT ATOMS : 38 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 57.26 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 3.90000 REMARK 3 B22 (A**2) : -2.98000 REMARK 3 B33 (A**2) : -1.01000 REMARK 3 B12 (A**2) : 0.00000 REMARK 3 B13 (A**2) : 0.41000 REMARK 3 B23 (A**2) : 0.00000 REMARK 3 REMARK 3 ESTIMATED OVERALL COORDINATE ERROR. REMARK 3 ESU BASED ON R VALUE (A): 0.726 REMARK 3 ESU BASED ON FREE R VALUE (A): 0.278 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): NULL REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): NULL REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : 0.960 REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : 0.938 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES COUNT RMS WEIGHT REMARK 3 BOND LENGTHS REFINED ATOMS (A): 2501 ; 0.008 ; 0.013 REMARK 3 BOND LENGTHS OTHERS (A): 2339 ; 0.035 ; 0.017 REMARK 3 BOND ANGLES REFINED ATOMS (DEGREES): 3397 ; 1.537 ; 1.649 REMARK 3 BOND ANGLES OTHERS (DEGREES): 5369 ; 2.401 ; 1.603 REMARK 3 TORSION ANGLES, PERIOD 1 (DEGREES): 315 ; 8.074 ; 5.000 REMARK 3 TORSION ANGLES, PERIOD 2 (DEGREES): 122 ;33.787 ;23.279 REMARK 3 TORSION ANGLES, PERIOD 3 (DEGREES): 398 ;15.519 ;15.000 REMARK 3 TORSION ANGLES, PERIOD 4 (DEGREES): 11 ;15.426 ;15.000 REMARK 3 CHIRAL-CENTER RESTRAINTS (A**3): 325 ; 0.062 ; 0.200 REMARK 3 GENERAL PLANES REFINED ATOMS (A): 2886 ; 0.009 ; 0.020 REMARK 3 GENERAL PLANES OTHERS (A): 596 ; 0.009 ; 0.020 REMARK 3 NON-BONDED CONTACTS REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED CONTACTS OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED TORSION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED TORSION OTHERS (A): NULL ; NULL ; NULL REMARK 3 H-BOND (X...Y) REFINED ATOMS (A): NULL ; NULL ; NULL 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): NULL ; NULL ; NULL REMARK 3 SYMMETRY VDW OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY H-BOND REFINED ATOMS (A): NULL ; NULL ; NULL 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): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN BOND REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE REFINED ATOMS (A**2): NULL ; NULL ; NULL 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: HYDROGENS HAVE BEEN ADDED IN THE RIDING REMARK 3 POSITIONS U VALUES : REFINED INDIVIDUALLY REMARK 4 REMARK 4 7MRR COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 10-MAY-21. REMARK 100 THE DEPOSITION ID IS D_1000256750. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 12-MAR-21 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 7.0 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : NSLS-II REMARK 200 BEAMLINE : 17-ID-2 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.9793 REMARK 200 MONOCHROMATOR : M REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : PIXEL REMARK 200 DETECTOR MANUFACTURER : DECTRIS EIGER X 16M REMARK 200 INTENSITY-INTEGRATION SOFTWARE : XDS REMARK 200 DATA SCALING SOFTWARE : AIMLESS 0.7.4 REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 11449 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.320 REMARK 200 RESOLUTION RANGE LOW (A) : 27.670 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 98.3 REMARK 200 DATA REDUNDANCY : 6.400 REMARK 200 R MERGE (I) : 0.11500 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 12.1000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.32 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.38 REMARK 200 COMPLETENESS FOR SHELL (%) : 79.2 REMARK 200 DATA REDUNDANCY IN SHELL : 5.80 REMARK 200 R MERGE FOR SHELL (I) : 1.08100 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 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: PHASER REMARK 200 STARTING MODEL: 7NEV REMARK 200 REMARK 200 REMARK: VERY THIN LARGE PLATE REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 38.60 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.00 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PEG 4000, HEPES PH 7.0, 3% DMSO, VAPOR REMARK 280 DIFFUSION, HANGING DROP, TEMPERATURE 293K 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 56.59300 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 26.59050 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 4 -1.000000 0.000000 0.000000 56.59300 REMARK 290 SMTRY2 4 0.000000 1.000000 0.000000 26.59050 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: TETRAMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TETRAMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 6410 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 25400 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -27.0 KCAL/MOL 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 350 BIOMT1 2 -1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT2 2 0.000000 1.000000 0.000000 0.00000 REMARK 350 BIOMT3 2 0.000000 0.000000 -1.000000 0.00000 REMARK 400 REMARK 400 COMPOUND REMARK 400 REMARK 400 THE LEUPEPTIN IS OLIGOPEPTIDE, A MEMBER OF ENZYME INHIBITOR CLASS. REMARK 400 REMARK 400 GROUP: 1 REMARK 400 NAME: LEUPEPTIN REMARK 400 CHAIN: B REMARK 400 COMPONENT_1: PEPTIDE LIKE POLYMER REMARK 400 DESCRIPTION: 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 -129.33 46.14 REMARK 500 ASN A 51 58.90 -147.89 REMARK 500 ASN A 84 -120.72 46.03 REMARK 500 TYR A 154 -116.53 47.17 REMARK 500 HIS A 164 -37.59 -130.32 REMARK 500 LEU A 282 53.53 35.91 REMARK 500 SER A 301 -38.29 -137.36 REMARK 500 REMARK 500 REMARK: NULL REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 7K3T RELATED DB: PDB REMARK 900 RELATED ID: 7K40 RELATED DB: PDB REMARK 900 RELATED ID: 7K6D RELATED DB: PDB REMARK 900 RELATED ID: 7K6E RELATED DB: PDB REMARK 900 RELATED ID: 7JYC RELATED DB: PDB REMARK 900 RELATED ID: 7MNG RELATED DB: PDB DBREF 7MRR A 1 306 UNP P0DTD1 R1AB_SARS2 3264 3569 DBREF 7MRR B 1 4 PDB 7MRR 7MRR 1 4 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 VAL VAL TYR CYS PRO SEQRES 4 A 306 ARG HIS VAL ILE CYS THR SER GLU ASP MET LEU ASN PRO SEQRES 5 A 306 ASN TYR GLU ASP LEU LEU ILE ARG LYS SER ASN HIS ASN 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 VAL LEU LYS LEU LYS VAL SEQRES 8 A 306 ASP THR ALA 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 PHE 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 ASN 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 VAL 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 SER LEU LYS GLU LEU LEU GLN SEQRES 22 A 306 ASN GLY MET ASN GLY ARG THR ILE LEU GLY SER ALA LEU 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 SEQRES 1 B 4 ACE LEU LEU AR7 HET ACE B 1 3 HET AR7 B 4 11 HET DMS A 401 4 HET DMS A 402 4 HET DMS A 403 4 HET DMS A 404 4 HETNAM ACE ACETYL GROUP HETNAM AR7 AMINO{[(4S)-4-AMINO-5,5- HETNAM 2 AR7 DIHYDROXYPENTYL]AMINO}METHANIMINIUM HETNAM DMS DIMETHYL SULFOXIDE FORMUL 2 ACE C2 H4 O FORMUL 2 AR7 C6 H17 N4 O2 1+ FORMUL 3 DMS 4(C2 H6 O S) FORMUL 7 HOH *38(H2 O) HELIX 1 AA1 SER A 10 GLY A 15 1 6 HELIX 2 AA2 HIS A 41 CYS A 44 5 4 HELIX 3 AA3 GLU A 47 ASN A 51 5 5 HELIX 4 AA4 ASN A 53 ARG A 60 1 8 HELIX 5 AA5 LYS A 61 PHE A 66 5 6 HELIX 6 AA6 ILE A 200 ASN A 214 1 15 HELIX 7 AA7 THR A 226 TYR A 237 1 12 HELIX 8 AA8 THR A 243 GLY A 258 1 16 HELIX 9 AA9 ALA A 260 GLY A 275 1 16 HELIX 10 AB1 THR A 292 CYS A 300 1 9 SHEET 1 AA1 7 VAL A 73 LEU A 75 0 SHEET 2 AA1 7 LEU A 67 ALA A 70 -1 N ALA A 70 O VAL A 73 SHEET 3 AA1 7 MET A 17 CYS A 22 -1 N GLN A 19 O GLN A 69 SHEET 4 AA1 7 THR A 25 LEU A 32 -1 O LEU A 27 N VAL A 20 SHEET 5 AA1 7 VAL A 35 PRO A 39 -1 O TYR A 37 N LEU A 30 SHEET 6 AA1 7 VAL A 86 VAL A 91 -1 O LEU A 89 N VAL A 36 SHEET 7 AA1 7 VAL A 77 GLN A 83 -1 N GLY A 79 O LYS A 90 SHEET 1 AA2 3 TYR A 101 PHE A 103 0 SHEET 2 AA2 3 CYS A 156 GLU A 166 1 O PHE A 159 N LYS A 102 SHEET 3 AA2 3 HIS A 172 THR A 175 -1 O ALA A 173 N MET A 165 SHEET 1 AA3 5 SER A 121 ALA A 129 0 SHEET 2 AA3 5 THR A 111 TYR A 118 -1 N VAL A 114 O TYR A 126 SHEET 3 AA3 5 VAL A 148 ASP A 153 -1 O PHE A 150 N SER A 113 SHEET 4 AA3 5 CYS A 156 GLU A 166 -1 O SER A 158 N ASN A 151 SHEET 5 AA3 5 LEU B 2 LEU B 3 -1 O LEU B 2 N GLU A 166 LINK SG CYS A 145 C AR7 B 4 1555 1555 1.64 LINK C ACE B 1 N LEU B 2 1555 1555 1.35 LINK C LEU B 3 N AR7 B 4 1555 1555 1.34 CRYST1 113.186 53.181 45.917 90.00 102.24 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 0.008835 0.000000 0.001916 0.00000 SCALE2 0.000000 0.018804 0.000000 0.00000 SCALE3 0.000000 0.000000 0.022285 0.00000