HEADER VIRAL PROTEIN/INHIBITOR 13-JAN-22 7TIA TITLE CRYSTAL STRUCTURE OF SARS-COV-2 3CL IN COMPLEX WITH INHIBITOR NK01-14 COMPND MOL_ID: 1; COMPND 2 MOLECULE: 3C-LIKE PROTEINASE NSP5; 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 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 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 562 KEYWDS VIRAL PROTEIN, VIRAL PROTEIN-INHIBITOR COMPLEX EXPDTA X-RAY DIFFRACTION AUTHOR F.FOROUHAR,H.LIU,S.IKETANI,A.ZACK,N.KHANIZEMAN,E.BEDNAROVA,B.FOWLER, AUTHOR 2 S.J.HONG,H.MOHRI,M.S.NAIR,Y.HUANG,N.E.S.TAY,S.LEE,C.KARAN, AUTHOR 3 S.J.RESNICK,C.QUINN,W.LI,H.SHION,C.JURTSCHENKO,M.A.LAUBER, AUTHOR 4 T.MCDONALD,M.E.STOKES,B.HURST,T.ROVIS,A.CHAVEZ,D.D.HO,B.R.STOCKWELL REVDAT 4 06-NOV-24 7TIA 1 REMARK REVDAT 3 18-OCT-23 7TIA 1 REMARK REVDAT 2 11-MAY-22 7TIA 1 TITLE REVDAT 1 04-MAY-22 7TIA 0 JRNL AUTH H.LIU,S.IKETANI,A.ZASK,N.KHANIZEMAN,E.BEDNAROVA,F.FOROUHAR, JRNL AUTH 2 B.FOWLER,S.J.HONG,H.MOHRI,M.S.NAIR,Y.HUANG,N.E.S.TAY,S.LEE, JRNL AUTH 3 C.KARAN,S.J.RESNICK,C.QUINN,W.LI,H.SHION,X.XIA,J.D.DANIELS, JRNL AUTH 4 M.BARTOLO-CRUZ,M.FARINA,P.RAJBHANDARI,C.JURTSCHENKO, JRNL AUTH 5 M.A.LAUBER,T.MCDONALD,M.E.STOKES,B.L.HURST,T.ROVIS,A.CHAVEZ, JRNL AUTH 6 D.D.HO,B.R.STOCKWELL JRNL TITL DEVELOPMENT OF OPTIMIZED DRUG-LIKE SMALL MOLECULE INHIBITORS JRNL TITL 2 OF THE SARS-COV-2 3CL PROTEASE FOR TREATMENT OF COVID-19. JRNL REF NAT COMMUN V. 13 1891 2022 JRNL REFN ESSN 2041-1723 JRNL PMID 35393402 JRNL DOI 10.1038/S41467-022-29413-2 REMARK 2 REMARK 2 RESOLUTION. 1.64 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PHENIX 1.17.1_3660 REMARK 3 AUTHORS : PAUL ADAMS,PAVEL AFONINE,VINCENT CHEN,IAN REMARK 3 : DAVIS,KRESHNA GOPAL,RALF GROSSE-KUNSTLEVE, REMARK 3 : LI-WEI HUNG,ROBERT IMMORMINO,TOM IOERGER, REMARK 3 : AIRLIE MCCOY,ERIK MCKEE,NIGEL MORIARTY, REMARK 3 : REETAL PAI,RANDY READ,JANE RICHARDSON, REMARK 3 : DAVID RICHARDSON,TOD ROMO,JIM SACCHETTINI, REMARK 3 : NICHOLAS SAUTER,JACOB SMITH,LAURENT REMARK 3 : STORONI,TOM TERWILLIGER,PETER ZWART REMARK 3 REMARK 3 REFINEMENT TARGET : ML REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.64 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 47.17 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 1.380 REMARK 3 COMPLETENESS FOR RANGE (%) : 98.4 REMARK 3 NUMBER OF REFLECTIONS : 44624 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.174 REMARK 3 R VALUE (WORKING SET) : 0.173 REMARK 3 FREE R VALUE : 0.191 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 10.070 REMARK 3 FREE R VALUE TEST SET COUNT : 4495 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT (IN BINS). REMARK 3 BIN RESOLUTION RANGE COMPL. NWORK NFREE RWORK RFREE REMARK 3 1 47.1700 - 5.1000 0.98 1389 146 0.1459 0.1587 REMARK 3 2 5.0900 - 4.0500 0.98 1351 149 0.1323 0.1494 REMARK 3 3 4.0400 - 3.5300 0.99 1348 163 0.1610 0.1542 REMARK 3 4 3.5300 - 3.2100 0.98 1366 130 0.1832 0.2042 REMARK 3 5 3.2100 - 2.9800 0.99 1381 138 0.1891 0.1967 REMARK 3 6 2.9800 - 2.8000 0.99 1325 164 0.1946 0.2181 REMARK 3 7 2.8000 - 2.6600 0.98 1338 150 0.2003 0.2406 REMARK 3 8 2.6600 - 2.5500 0.99 1325 139 0.1885 0.2074 REMARK 3 9 2.5500 - 2.4500 0.99 1333 162 0.1941 0.2474 REMARK 3 10 2.4500 - 2.3700 0.99 1370 146 0.1880 0.2042 REMARK 3 11 2.3700 - 2.2900 0.99 1346 155 0.1900 0.2183 REMARK 3 12 2.2900 - 2.2300 0.99 1358 151 0.1909 0.2238 REMARK 3 13 2.2300 - 2.1700 0.99 1302 157 0.1868 0.2192 REMARK 3 14 2.1700 - 2.1100 0.99 1321 171 0.1823 0.2002 REMARK 3 15 2.1100 - 2.0700 0.99 1315 150 0.1868 0.2108 REMARK 3 16 2.0700 - 2.0200 0.99 1373 141 0.1954 0.2071 REMARK 3 17 2.0200 - 1.9800 0.99 1361 140 0.1817 0.2094 REMARK 3 18 1.9800 - 1.9400 0.99 1320 143 0.1821 0.2165 REMARK 3 19 1.9400 - 1.9100 0.98 1337 149 0.1856 0.1982 REMARK 3 20 1.9100 - 1.8800 0.98 1349 138 0.1812 0.1961 REMARK 3 21 1.8800 - 1.8500 0.98 1333 153 0.1694 0.2129 REMARK 3 22 1.8500 - 1.8200 0.98 1330 151 0.1777 0.2215 REMARK 3 23 1.8200 - 1.7900 0.98 1326 141 0.1858 0.2044 REMARK 3 24 1.7900 - 1.7700 0.98 1333 163 0.1848 0.1967 REMARK 3 25 1.7700 - 1.7400 0.98 1290 158 0.2090 0.2423 REMARK 3 26 1.7400 - 1.7200 0.98 1309 168 0.2016 0.2282 REMARK 3 27 1.7200 - 1.7000 0.97 1342 140 0.2151 0.2318 REMARK 3 28 1.7000 - 1.6800 0.98 1307 142 0.2280 0.2613 REMARK 3 29 1.6800 - 1.6600 0.98 1327 152 0.2397 0.2897 REMARK 3 30 1.6600 - 1.6400 0.97 1324 145 0.2609 0.2517 REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : FLAT BULK SOLVENT MODEL REMARK 3 SOLVENT RADIUS : 1.11 REMARK 3 SHRINKAGE RADIUS : 0.90 REMARK 3 K_SOL : NULL REMARK 3 B_SOL : NULL REMARK 3 REMARK 3 ERROR ESTIMATES. REMARK 3 COORDINATE ERROR (MAXIMUM-LIKELIHOOD BASED) : 0.150 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 21.240 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 46.69 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 TWINNING INFORMATION. REMARK 3 FRACTION: NULL REMARK 3 OPERATOR: NULL REMARK 3 REMARK 3 DEVIATIONS FROM IDEAL VALUES. REMARK 3 RMSD COUNT REMARK 3 BOND : NULL NULL REMARK 3 ANGLE : NULL NULL REMARK 3 CHIRALITY : NULL NULL REMARK 3 PLANARITY : NULL NULL REMARK 3 DIHEDRAL : NULL NULL REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : 1 REMARK 3 TLS GROUP : 1 REMARK 3 SELECTION: ALL REMARK 3 ORIGIN FOR THE GROUP (A): -26.0405 12.4936 59.4222 REMARK 3 T TENSOR REMARK 3 T11: 0.2035 T22: 0.2387 REMARK 3 T33: 0.2666 T12: -0.0179 REMARK 3 T13: -0.0129 T23: -0.0165 REMARK 3 L TENSOR REMARK 3 L11: 0.7011 L22: 1.5180 REMARK 3 L33: 3.4639 L12: 0.5546 REMARK 3 L13: -0.2295 L23: 1.2015 REMARK 3 S TENSOR REMARK 3 S11: 0.0636 S12: -0.0748 S13: -0.0560 REMARK 3 S21: 0.0247 S22: -0.0520 S23: -0.0667 REMARK 3 S31: -0.1379 S32: -0.0899 S33: 0.0104 REMARK 3 REMARK 3 NCS DETAILS REMARK 3 NUMBER OF NCS GROUPS : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 7TIA COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 14-JAN-22. REMARK 100 THE DEPOSITION ID IS D_1000262363. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 22-SEP-20 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : APS REMARK 200 BEAMLINE : 24-ID-C REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.979 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : PIXEL REMARK 200 DETECTOR MANUFACTURER : DECTRIS EIGER2 X 16M REMARK 200 INTENSITY-INTEGRATION SOFTWARE : XDS REMARK 200 DATA SCALING SOFTWARE : AIMLESS REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 50967 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.570 REMARK 200 RESOLUTION RANGE LOW (A) : 47.170 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 98.1 REMARK 200 DATA REDUNDANCY : 6.900 REMARK 200 R MERGE (I) : 0.05500 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 15.5000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.57 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.59 REMARK 200 COMPLETENESS FOR SHELL (%) : NULL REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : 1.70400 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 1.100 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: MOLREP REMARK 200 STARTING MODEL: 7JSU REMARK 200 REMARK 200 REMARK: BLOCK-SHAPED REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 55.77 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.78 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 0.1 M POTASSIUM THIOCYANATE, 0.1 M REMARK 280 SODIUM ACETATE, PH 5, AND 20% (W/V) PEG 8000, MICROBATCH, REMARK 280 TEMPERATURE 277K 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 48.77550 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 40.88900 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 4 -1.000000 0.000000 0.000000 48.77550 REMARK 290 SMTRY2 4 0.000000 1.000000 0.000000 40.88900 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: 3120 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 25480 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -19.0 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 -43.20643 REMARK 350 BIOMT2 2 0.000000 1.000000 0.000000 0.00000 REMARK 350 BIOMT3 2 0.000000 0.000000 -1.000000 94.32753 REMARK 375 REMARK 375 SPECIAL POSITION REMARK 375 THE FOLLOWING ATOMS ARE FOUND TO BE WITHIN 0.15 ANGSTROMS REMARK 375 OF A SYMMETRY RELATED ATOM AND ARE ASSUMED TO BE ON SPECIAL REMARK 375 POSITIONS. REMARK 375 REMARK 375 ATOM RES CSSEQI REMARK 375 HOH A 556 LIES ON A SPECIAL POSITION. REMARK 375 HOH A 628 LIES ON A SPECIAL POSITION. REMARK 375 HOH A 662 LIES ON A SPECIAL POSITION. REMARK 375 HOH A 668 LIES ON A SPECIAL POSITION. 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 THR A 304 REMARK 465 PHE A 305 REMARK 465 GLN A 306 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 -131.88 53.04 REMARK 500 ASN A 51 77.02 -151.65 REMARK 500 ASN A 84 -124.27 56.51 REMARK 500 ALA A 191 63.47 -103.20 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 A 672 DISTANCE = 6.65 ANGSTROMS DBREF 7TIA A 1 306 UNP P0DTC1 R1A_SARS2 3264 3569 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 HET XTP A 401 29 HET SCN A 402 3 HETNAM XTP BENZYL [(2S)-3-CYCLOPROPYL-1-({(2S)-1-HYDROXY-3-[(3S)- HETNAM 2 XTP 2-OXOPYRROLIDIN-3-YL]PROPAN-2-YL}AMINO)-1-OXOPROPAN-2- HETNAM 3 XTP YL]CARBAMATE HETNAM SCN THIOCYANATE ION FORMUL 2 XTP C21 H29 N3 O5 FORMUL 3 SCN C N S 1- FORMUL 4 HOH *170(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 SER A 62 HIS A 64 5 3 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 LEU A 250 1 8 HELIX 9 AA9 LEU A 250 GLY A 258 1 9 HELIX 10 AB1 ALA A 260 GLY A 275 1 16 HELIX 11 AB2 THR A 292 SER A 301 1 10 SHEET 1 AA1 7 VAL A 73 LEU A 75 0 SHEET 2 AA1 7 PHE A 66 ALA A 70 -1 N ALA A 70 O VAL A 73 SHEET 3 AA1 7 MET A 17 CYS A 22 -1 N THR A 21 O LEU A 67 SHEET 4 AA1 7 THR A 25 LEU A 32 -1 O THR A 25 N CYS A 22 SHEET 5 AA1 7 VAL A 35 PRO A 39 -1 O VAL A 35 N LEU A 32 SHEET 6 AA1 7 VAL A 86 VAL A 91 -1 O LEU A 87 N CYS A 38 SHEET 7 AA1 7 VAL A 77 GLN A 83 -1 N ILE A 78 O LYS A 90 SHEET 1 AA2 5 LYS A 100 PHE A 103 0 SHEET 2 AA2 5 CYS A 156 GLU A 166 1 O VAL A 157 N LYS A 100 SHEET 3 AA2 5 VAL A 148 ASP A 153 -1 N ASN A 151 O SER A 158 SHEET 4 AA2 5 THR A 111 TYR A 118 -1 N SER A 113 O PHE A 150 SHEET 5 AA2 5 SER A 121 ALA A 129 -1 O TYR A 126 N VAL A 114 SHEET 1 AA3 3 LYS A 100 PHE A 103 0 SHEET 2 AA3 3 CYS A 156 GLU A 166 1 O VAL A 157 N LYS A 100 SHEET 3 AA3 3 HIS A 172 THR A 175 -1 O ALA A 173 N MET A 165 LINK SG CYS A 145 C12 XTP A 401 1555 1555 1.81 CRYST1 97.551 81.778 51.876 90.00 114.61 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 0.010251 0.000000 0.004694 0.00000 SCALE2 0.000000 0.012228 0.000000 0.00000 SCALE3 0.000000 0.000000 0.021202 0.00000