HEADER HYDROLASE/INHIBITOR 08-NOV-24 9KGN TITLE DISCOVERY OF AN ORALLY BIOAVAILABLE REVERSIBLE COVALENT SARS-COV-2 TITLE 2 MPRO INHIBITOR WITH PAN-CORONAVIRUS ACTIVITY COMPND MOL_ID: 1; COMPND 2 MOLECULE: 3C-LIKE PROTEINASE NSP5; COMPND 3 CHAIN: B, 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: COMPOUND 3; COMPND 10 CHAIN: C, D; COMPND 11 SYNONYM: (S)-2-((S)-2-ACETAMIDO-3-METHYLBUTANAMIDO)-4-METHYL-N-((S)- COMPND 12 1-OXO-3-((S)-2-OXOPYRROLIDIN-3-YL)PROPAN-2-YL)PENTANAMIDE; COMPND 13 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: SEVERE ACUTE RESPIRATORY SYNDROME CORONAVIRUS SOURCE 3 2; SOURCE 4 ORGANISM_TAXID: 2697049; SOURCE 5 GENE: REP, 1A-1B; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 8 MOL_ID: 2; SOURCE 9 SYNTHETIC: YES; SOURCE 10 ORGANISM_SCIENTIFIC: SYNTHETIC CONSTRUCT; SOURCE 11 ORGANISM_TAXID: 32630 KEYWDS PROTEASE, COV2, HYDROLASE, HYDROLASE-INHIBITOR COMPLEX EXPDTA X-RAY DIFFRACTION AUTHOR N.BABURAJENDRAN REVDAT 2 10-SEP-25 9KGN 1 JRNL REVDAT 1 20-AUG-25 9KGN 0 JRNL AUTH Q.W.TAN,S.VANKADARA,J.Y.FONG,Y.Y.SEE,N.BABURAJENDRAN,P.S.NG, JRNL AUTH 2 W.XU,Y.K.YEO,W.WANG,C.H.LOW,L.H.TAN,E.G.JU TAY,Y.X.WONG, JRNL AUTH 3 C.HUANG,S.SIM,S.H.ANG,H.H.MIN TOH,J.MOHAMMAD,G.WANG,B.LIU, JRNL AUTH 4 S.T.TAN,P.Z.KWEK,M.D.DAWSON,Q.Y.OH,X.KOH,J.JOY,M.A.LEE, JRNL AUTH 5 W.STUNKEL,V.PENDHARKAR,H.HENTZE,S.P.LIM,K.ETHIRAJULU, JRNL AUTH 6 C.S.BRIAN CHIA,J.CHERIAN JRNL TITL DISCOVERY OF AN ORALLY BIOAVAILABLE REVERSIBLE COVALENT JRNL TITL 2 SARS-COV-2 M PRO INHIBITOR WITH PAN-CORONAVIRUS ACTIVITY. JRNL REF J.MED.CHEM. V. 68 17087 2025 JRNL REFN ISSN 0022-2623 JRNL PMID 40773370 JRNL DOI 10.1021/ACS.JMEDCHEM.5C00581 REMARK 2 REMARK 2 RESOLUTION. 1.89 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PHENIX 1.14_3260 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 : CDL V1.2 REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.89 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 46.74 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 1.350 REMARK 3 COMPLETENESS FOR RANGE (%) : 97.9 REMARK 3 NUMBER OF REFLECTIONS : 47862 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.185 REMARK 3 R VALUE (WORKING SET) : 0.183 REMARK 3 FREE R VALUE : 0.226 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 4.170 REMARK 3 FREE R VALUE TEST SET COUNT : 1998 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 46.7400 - 4.5500 0.99 3388 145 0.1525 0.1799 REMARK 3 2 4.5500 - 3.6100 0.99 3355 145 0.1460 0.1984 REMARK 3 3 3.6100 - 3.1500 0.99 3314 148 0.1784 0.2301 REMARK 3 4 3.1500 - 2.8600 0.99 3318 147 0.1896 0.2196 REMARK 3 5 2.8600 - 2.6600 0.98 3294 139 0.1953 0.2462 REMARK 3 6 2.6600 - 2.5000 0.99 3297 141 0.1983 0.2366 REMARK 3 7 2.5000 - 2.3800 0.98 3294 148 0.1957 0.2488 REMARK 3 8 2.3800 - 2.2700 0.98 3282 142 0.1974 0.2504 REMARK 3 9 2.2700 - 2.1900 0.98 3243 135 0.2071 0.2370 REMARK 3 10 2.1900 - 2.1100 0.98 3268 156 0.2151 0.2874 REMARK 3 11 2.1100 - 2.0400 0.98 3253 129 0.2291 0.2833 REMARK 3 12 2.0400 - 1.9900 0.98 3232 145 0.2410 0.2630 REMARK 3 13 1.9900 - 1.9300 0.97 3270 151 0.2677 0.2797 REMARK 3 14 1.9300 - 1.8900 0.92 3056 127 0.3061 0.3436 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) : 0.217 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 24.147 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 28.52 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 34.78 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 : 0.005 4800 REMARK 3 ANGLE : 0.751 6525 REMARK 3 CHIRALITY : 0.047 740 REMARK 3 PLANARITY : 0.006 845 REMARK 3 DIHEDRAL : 8.177 2809 REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : NULL 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 9KGN COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 11-NOV-24. REMARK 100 THE DEPOSITION ID IS D_1300053566. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 14-JUL-20 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : NULL REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : AUSTRALIAN SYNCHROTRON REMARK 200 BEAMLINE : MX2 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.95365 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : ADSC QUANTUM 315R REMARK 200 INTENSITY-INTEGRATION SOFTWARE : XDS REMARK 200 DATA SCALING SOFTWARE : AIMLESS REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 47952 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.890 REMARK 200 RESOLUTION RANGE LOW (A) : 49.030 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 98.1 REMARK 200 DATA REDUNDANCY : 7.600 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 8.5000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.89 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.93 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: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: PHASER REMARK 200 STARTING MODEL: 6Y2G REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 45.20 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.24 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 0.02 M CITRIC ACID, 0.08 M BIS-TRIS REMARK 280 PROPANE PH 8.8, 16% W/V POLYETHYLENE GLYCOL 3,350, VAPOR REMARK 280 DIFFUSION, HANGING DROP, TEMPERATURE 293K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 1 21 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,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 49.32950 REMARK 290 SMTRY3 2 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: 4330 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 24900 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -21.0 KCAL/MOL REMARK 350 APPLY THE FOLLOWING TO CHAINS: B, A, C, D 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 GLY B -4 REMARK 465 PRO B -3 REMARK 465 LEU B -2 REMARK 465 GLY B -1 REMARK 465 SER B 0 REMARK 465 SER B 1 REMARK 465 GLY B 2 REMARK 465 PHE B 305 REMARK 465 GLN B 306 REMARK 465 GLY A -4 REMARK 465 PRO A -3 REMARK 465 LEU A -2 REMARK 465 GLY A -1 REMARK 465 SER A 0 REMARK 465 SER A 1 REMARK 465 GLY A 2 REMARK 465 GLY A 302 REMARK 465 VAL A 303 REMARK 465 THR A 304 REMARK 465 PHE A 305 REMARK 465 GLN A 306 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 GLU B 47 CG CD OE1 OE2 REMARK 470 ARG B 222 CG CD NE CZ NH1 NH2 REMARK 470 GLU A 47 CG CD OE1 OE2 REMARK 470 ARG A 76 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 NH2 ARG B 76 O HOH B 401 2.09 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 B 33 -129.98 50.38 REMARK 500 ASN B 84 -121.64 52.47 REMARK 500 TYR B 154 -104.51 57.69 REMARK 500 PRO B 184 33.78 -90.83 REMARK 500 ARG B 217 23.01 -141.23 REMARK 500 ASP A 33 -118.38 52.11 REMARK 500 ASN A 51 76.31 -165.45 REMARK 500 ASN A 84 -120.63 54.24 REMARK 500 TYR A 154 -116.88 55.52 REMARK 500 PRO A 184 40.52 -85.42 REMARK 500 ASN A 277 -128.01 56.73 REMARK 500 REMARK 500 REMARK: NULL DBREF 9KGN B 1 306 UNP P0DTD1 R1AB_SARS2 3264 3569 DBREF 9KGN A 1 306 UNP P0DTD1 R1AB_SARS2 3264 3569 DBREF 9KGN C 1 4 PDB 9KGN 9KGN 1 4 DBREF 9KGN D 1 4 PDB 9KGN 9KGN 1 4 SEQADV 9KGN GLY B -4 UNP P0DTD1 EXPRESSION TAG SEQADV 9KGN PRO B -3 UNP P0DTD1 EXPRESSION TAG SEQADV 9KGN LEU B -2 UNP P0DTD1 EXPRESSION TAG SEQADV 9KGN GLY B -1 UNP P0DTD1 EXPRESSION TAG SEQADV 9KGN SER B 0 UNP P0DTD1 EXPRESSION TAG SEQADV 9KGN GLY A -4 UNP P0DTD1 EXPRESSION TAG SEQADV 9KGN PRO A -3 UNP P0DTD1 EXPRESSION TAG SEQADV 9KGN LEU A -2 UNP P0DTD1 EXPRESSION TAG SEQADV 9KGN GLY A -1 UNP P0DTD1 EXPRESSION TAG SEQADV 9KGN SER A 0 UNP P0DTD1 EXPRESSION TAG SEQRES 1 B 311 GLY PRO LEU GLY SER SER GLY PHE ARG LYS MET ALA PHE SEQRES 2 B 311 PRO SER GLY LYS VAL GLU GLY CYS MET VAL GLN VAL THR SEQRES 3 B 311 CYS GLY THR THR THR LEU ASN GLY LEU TRP LEU ASP ASP SEQRES 4 B 311 VAL VAL TYR CYS PRO ARG HIS VAL ILE CYS THR SER GLU SEQRES 5 B 311 ASP MET LEU ASN PRO ASN TYR GLU ASP LEU LEU ILE ARG SEQRES 6 B 311 LYS SER ASN HIS ASN PHE LEU VAL GLN ALA GLY ASN VAL SEQRES 7 B 311 GLN LEU ARG VAL ILE GLY HIS SER MET GLN ASN CYS VAL SEQRES 8 B 311 LEU LYS LEU LYS VAL ASP THR ALA ASN PRO LYS THR PRO SEQRES 9 B 311 LYS TYR LYS PHE VAL ARG ILE GLN PRO GLY GLN THR PHE SEQRES 10 B 311 SER VAL LEU ALA CYS TYR ASN GLY SER PRO SER GLY VAL SEQRES 11 B 311 TYR GLN CYS ALA MET ARG PRO ASN PHE THR ILE LYS GLY SEQRES 12 B 311 SER PHE LEU ASN GLY SER CYS GLY SER VAL GLY PHE ASN SEQRES 13 B 311 ILE ASP TYR ASP CYS VAL SER PHE CYS TYR MET HIS HIS SEQRES 14 B 311 MET GLU LEU PRO THR GLY VAL HIS ALA GLY THR ASP LEU SEQRES 15 B 311 GLU GLY ASN PHE TYR GLY PRO PHE VAL ASP ARG GLN THR SEQRES 16 B 311 ALA GLN ALA ALA GLY THR ASP THR THR ILE THR VAL ASN SEQRES 17 B 311 VAL LEU ALA TRP LEU TYR ALA ALA VAL ILE ASN GLY ASP SEQRES 18 B 311 ARG TRP PHE LEU ASN ARG PHE THR THR THR LEU ASN ASP SEQRES 19 B 311 PHE ASN LEU VAL ALA MET LYS TYR ASN TYR GLU PRO LEU SEQRES 20 B 311 THR GLN ASP HIS VAL ASP ILE LEU GLY PRO LEU SER ALA SEQRES 21 B 311 GLN THR GLY ILE ALA VAL LEU ASP MET CYS ALA SER LEU SEQRES 22 B 311 LYS GLU LEU LEU GLN ASN GLY MET ASN GLY ARG THR ILE SEQRES 23 B 311 LEU GLY SER ALA LEU LEU GLU ASP GLU PHE THR PRO PHE SEQRES 24 B 311 ASP VAL VAL ARG GLN CYS SER GLY VAL THR PHE GLN SEQRES 1 A 311 GLY PRO LEU GLY SER SER GLY PHE ARG LYS MET ALA PHE SEQRES 2 A 311 PRO SER GLY LYS VAL GLU GLY CYS MET VAL GLN VAL THR SEQRES 3 A 311 CYS GLY THR THR THR LEU ASN GLY LEU TRP LEU ASP ASP SEQRES 4 A 311 VAL VAL TYR CYS PRO ARG HIS VAL ILE CYS THR SER GLU SEQRES 5 A 311 ASP MET LEU ASN PRO ASN TYR GLU ASP LEU LEU ILE ARG SEQRES 6 A 311 LYS SER ASN HIS ASN PHE LEU VAL GLN ALA GLY ASN VAL SEQRES 7 A 311 GLN LEU ARG VAL ILE GLY HIS SER MET GLN ASN CYS VAL SEQRES 8 A 311 LEU LYS LEU LYS VAL ASP THR ALA ASN PRO LYS THR PRO SEQRES 9 A 311 LYS TYR LYS PHE VAL ARG ILE GLN PRO GLY GLN THR PHE SEQRES 10 A 311 SER VAL LEU ALA CYS TYR ASN GLY SER PRO SER GLY VAL SEQRES 11 A 311 TYR GLN CYS ALA MET ARG PRO ASN PHE THR ILE LYS GLY SEQRES 12 A 311 SER PHE LEU ASN GLY SER CYS GLY SER VAL GLY PHE ASN SEQRES 13 A 311 ILE ASP TYR ASP CYS VAL SER PHE CYS TYR MET HIS HIS SEQRES 14 A 311 MET GLU LEU PRO THR GLY VAL HIS ALA GLY THR ASP LEU SEQRES 15 A 311 GLU GLY ASN PHE TYR GLY PRO PHE VAL ASP ARG GLN THR SEQRES 16 A 311 ALA GLN ALA ALA GLY THR ASP THR THR ILE THR VAL ASN SEQRES 17 A 311 VAL LEU ALA TRP LEU TYR ALA ALA VAL ILE ASN GLY ASP SEQRES 18 A 311 ARG TRP PHE LEU ASN ARG PHE THR THR THR LEU ASN ASP SEQRES 19 A 311 PHE ASN LEU VAL ALA MET LYS TYR ASN TYR GLU PRO LEU SEQRES 20 A 311 THR GLN ASP HIS VAL ASP ILE LEU GLY PRO LEU SER ALA SEQRES 21 A 311 GLN THR GLY ILE ALA VAL LEU ASP MET CYS ALA SER LEU SEQRES 22 A 311 LYS GLU LEU LEU GLN ASN GLY MET ASN GLY ARG THR ILE SEQRES 23 A 311 LEU GLY SER ALA LEU LEU GLU ASP GLU PHE THR PRO PHE SEQRES 24 A 311 ASP VAL VAL ARG GLN CYS SER GLY VAL THR PHE GLN SEQRES 1 C 4 ACE VAL LEU ELL SEQRES 1 D 4 ACE VAL LEU ELL HET ACE C 1 3 HET ELL C 4 11 HET ACE D 1 3 HET ELL D 4 11 HETNAM ACE ACETYL GROUP HETNAM ELL (2S)-2-AZANYL-3-[(3S)-2-OXIDANYLIDENEPYRROLIDIN-3- HETNAM 2 ELL YL]PROPANAL FORMUL 3 ACE 2(C2 H4 O) FORMUL 3 ELL 2(C7 H12 N2 O2) FORMUL 5 HOH *256(H2 O) HELIX 1 AA1 SER B 10 GLY B 15 1 6 HELIX 2 AA2 HIS B 41 CYS B 44 5 4 HELIX 3 AA3 ASN B 53 ARG B 60 1 8 HELIX 4 AA4 SER B 62 PHE B 66 5 5 HELIX 5 AA5 ILE B 200 ASN B 214 1 15 HELIX 6 AA6 THR B 226 TYR B 237 1 12 HELIX 7 AA7 THR B 243 LEU B 250 1 8 HELIX 8 AA8 LEU B 250 GLY B 258 1 9 HELIX 9 AA9 ALA B 260 ASN B 274 1 15 HELIX 10 AB1 THR B 292 GLY B 302 1 11 HELIX 11 AB2 SER A 10 GLY A 15 1 6 HELIX 12 AB3 HIS A 41 CYS A 44 5 4 HELIX 13 AB4 THR A 45 ASN A 51 1 7 HELIX 14 AB5 ASN A 53 ARG A 60 1 8 HELIX 15 AB6 SER A 62 PHE A 66 5 5 HELIX 16 AB7 ILE A 200 ASN A 214 1 15 HELIX 17 AB8 THR A 226 TYR A 237 1 12 HELIX 18 AB9 THR A 243 LEU A 250 1 8 HELIX 19 AC1 LEU A 250 GLY A 258 1 9 HELIX 20 AC2 ALA A 260 GLY A 275 1 16 HELIX 21 AC3 THR A 292 SER A 301 1 10 SHEET 1 AA1 7 VAL B 73 LEU B 75 0 SHEET 2 AA1 7 LEU B 67 ALA B 70 -1 N VAL B 68 O LEU B 75 SHEET 3 AA1 7 MET B 17 CYS B 22 -1 N GLN B 19 O GLN B 69 SHEET 4 AA1 7 THR B 25 LEU B 32 -1 O GLY B 29 N VAL B 18 SHEET 5 AA1 7 VAL B 35 PRO B 39 -1 O TYR B 37 N LEU B 30 SHEET 6 AA1 7 VAL B 86 VAL B 91 -1 O LEU B 87 N CYS B 38 SHEET 7 AA1 7 VAL B 77 GLN B 83 -1 N GLN B 83 O VAL B 86 SHEET 1 AA2 3 LYS B 100 PHE B 103 0 SHEET 2 AA2 3 CYS B 156 GLU B 166 1 O VAL B 157 N LYS B 100 SHEET 3 AA2 3 HIS B 172 THR B 175 -1 O ALA B 173 N MET B 165 SHEET 1 AA3 5 SER B 121 ALA B 129 0 SHEET 2 AA3 5 THR B 111 TYR B 118 -1 N PHE B 112 O CYS B 128 SHEET 3 AA3 5 VAL B 148 ASP B 153 -1 O PHE B 150 N SER B 113 SHEET 4 AA3 5 CYS B 156 GLU B 166 -1 O SER B 158 N ASN B 151 SHEET 5 AA3 5 VAL D 2 LEU D 3 -1 O VAL D 2 N GLU B 166 SHEET 1 AA4 7 VAL A 73 LEU A 75 0 SHEET 2 AA4 7 LEU A 67 ALA A 70 -1 N VAL A 68 O LEU A 75 SHEET 3 AA4 7 MET A 17 CYS A 22 -1 N THR A 21 O LEU A 67 SHEET 4 AA4 7 THR A 25 LEU A 32 -1 O GLY A 29 N VAL A 18 SHEET 5 AA4 7 VAL A 35 PRO A 39 -1 O TYR A 37 N LEU A 30 SHEET 6 AA4 7 VAL A 86 VAL A 91 -1 O LEU A 89 N VAL A 36 SHEET 7 AA4 7 VAL A 77 GLN A 83 -1 N SER A 81 O LYS A 88 SHEET 1 AA5 3 LYS A 100 PHE A 103 0 SHEET 2 AA5 3 CYS A 156 GLU A 166 1 O VAL A 157 N LYS A 100 SHEET 3 AA5 3 HIS A 172 THR A 175 -1 O ALA A 173 N MET A 165 SHEET 1 AA6 5 SER A 121 ALA A 129 0 SHEET 2 AA6 5 THR A 111 TYR A 118 -1 N ALA A 116 O SER A 123 SHEET 3 AA6 5 VAL A 148 ASP A 153 -1 O PHE A 150 N SER A 113 SHEET 4 AA6 5 CYS A 156 GLU A 166 -1 O SER A 158 N ASN A 151 SHEET 5 AA6 5 VAL C 2 LEU C 3 -1 O VAL C 2 N GLU A 166 LINK SG CYS B 145 C ELL D 4 1555 1555 1.77 LINK SG CYS A 145 C ELL C 4 1555 1555 1.77 LINK C ACE C 1 N VAL C 2 1555 1555 1.44 LINK C LEU C 3 N ELL C 4 1555 1555 1.45 LINK C ACE D 1 N VAL D 2 1555 1555 1.45 LINK C LEU D 3 N ELL D 4 1555 1555 1.45 CRYST1 55.461 98.659 59.735 90.00 108.93 90.00 P 1 21 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 0.018031 0.000000 0.006185 0.00000 SCALE2 0.000000 0.010136 0.000000 0.00000 SCALE3 0.000000 0.000000 0.017698 0.00000 CONECT 1106 4696 CONECT 3428 4666 CONECT 4639 4640 4641 4642 CONECT 4640 4639 CONECT 4641 4639 CONECT 4642 4639 CONECT 4651 4665 CONECT 4657 4658 CONECT 4658 4657 4659 4662 CONECT 4659 4658 4660 CONECT 4660 4659 4661 CONECT 4661 4660 4662 CONECT 4662 4658 4661 4663 CONECT 4663 4662 4664 CONECT 4664 4663 4665 4666 CONECT 4665 4651 4664 CONECT 4666 3428 4664 4667 CONECT 4667 4666 CONECT 4669 4670 4671 4672 CONECT 4670 4669 CONECT 4671 4669 CONECT 4672 4669 CONECT 4681 4695 CONECT 4687 4688 CONECT 4688 4687 4689 4692 CONECT 4689 4688 4690 CONECT 4690 4689 4691 CONECT 4691 4690 4692 CONECT 4692 4688 4691 4693 CONECT 4693 4692 4694 CONECT 4694 4693 4695 4696 CONECT 4695 4681 4694 CONECT 4696 1106 4694 4697 CONECT 4697 4696 MASTER 274 0 4 21 30 0 0 6 4950 4 34 50 END