HEADER HYDROLASE/ANTIBIOTIC 06-FEB-23 8G2R TITLE CRYSTAL STRUCTURE OF THE KPC-2 D179N VARIANT IN COMPLEX WITH AVIBACTAM COMPND MOL_ID: 1; COMPND 2 MOLECULE: CARBAPENEM-HYDROLYZING BETA-LACTAMASE KPC; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: CARBAPENEM-HYDROLYZING BETA-LACTAMASE KPC-1; COMPND 5 EC: 3.5.2.6; COMPND 6 ENGINEERED: YES; COMPND 7 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: KLEBSIELLA PNEUMONIAE; SOURCE 3 ORGANISM_TAXID: 573; SOURCE 4 GENE: BLA, KPC, KPC1; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 562 KEYWDS BETA-LACTAMASE, INHIBITOR, ANTIBIOTIC RESISTANCE, HYDROLASE, KEYWDS 2 HYDROLASE-ANTIBIOTIC COMPLEX EXPDTA X-RAY DIFFRACTION AUTHOR T.ALSENANI,F.VAN DEN AKKER REVDAT 4 23-OCT-24 8G2R 1 REMARK REVDAT 3 01-NOV-23 8G2R 1 JRNL REVDAT 2 11-OCT-23 8G2R 1 JRNL REVDAT 1 09-AUG-23 8G2R 0 JRNL AUTH T.A.ALSENANI,S.L.VIVIANI,K.M.PAPP-WALLACE,R.A.BONOMO, JRNL AUTH 2 F.VAN DEN AKKER JRNL TITL EXPLORING AVIBACTAM AND RELEBACTAM INHIBITION OF KLEBSIELLA JRNL TITL 2 PNEUMONIAE CARBAPENEMASE D179N VARIANT: ROLE OF THE OMEGA JRNL TITL 3 LOOP-HELD DEACYLATION WATER. JRNL REF ANTIMICROB.AGENTS CHEMOTHER. V. 67 35023 2023 JRNL REFN ESSN 1098-6596 JRNL PMID 37750722 JRNL DOI 10.1128/AAC.00350-23 REMARK 2 REMARK 2 RESOLUTION. 1.28 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) : 1.28 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 49.06 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 92.5 REMARK 3 NUMBER OF REFLECTIONS : 57263 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) : 0.169 REMARK 3 R VALUE (WORKING SET) : 0.167 REMARK 3 FREE R VALUE : 0.204 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.000 REMARK 3 FREE R VALUE TEST SET COUNT : 3007 REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : NULL REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 1.28 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.31 REMARK 3 REFLECTION IN BIN (WORKING SET) : 4371 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 96.26 REMARK 3 BIN R VALUE (WORKING SET) : 0.3870 REMARK 3 BIN FREE R VALUE SET COUNT : 208 REMARK 3 BIN FREE R VALUE : 0.3830 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1967 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 17 REMARK 3 SOLVENT ATOMS : 233 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 20.61 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 0.00000 REMARK 3 B22 (A**2) : 0.00000 REMARK 3 B33 (A**2) : 0.00000 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): 0.050 REMARK 3 ESU BASED ON FREE R VALUE (A): 0.055 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.045 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 1.164 REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : 0.977 REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : 0.962 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES COUNT RMS WEIGHT REMARK 3 BOND LENGTHS REFINED ATOMS (A): 2191 ; 0.007 ; 0.013 REMARK 3 BOND LENGTHS OTHERS (A): 2113 ; 0.001 ; 0.017 REMARK 3 BOND ANGLES REFINED ATOMS (DEGREES): 3004 ; 1.454 ; 1.652 REMARK 3 BOND ANGLES OTHERS (DEGREES): 4861 ; 1.450 ; 1.580 REMARK 3 TORSION ANGLES, PERIOD 1 (DEGREES): 298 ; 6.134 ; 5.000 REMARK 3 TORSION ANGLES, PERIOD 2 (DEGREES): 109 ;28.718 ;20.917 REMARK 3 TORSION ANGLES, PERIOD 3 (DEGREES): 353 ;12.591 ;15.000 REMARK 3 TORSION ANGLES, PERIOD 4 (DEGREES): 18 ;15.371 ;15.000 REMARK 3 CHIRAL-CENTER RESTRAINTS (A**3): 295 ; 0.068 ; 0.200 REMARK 3 GENERAL PLANES REFINED ATOMS (A): 2542 ; 0.007 ; 0.020 REMARK 3 GENERAL PLANES OTHERS (A): 518 ; 0.002 ; 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): 1 ; 8.245 ; 3.000 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 8G2R COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 09-FEB-23. REMARK 100 THE DEPOSITION ID IS D_1000272105. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 03-NOV-21 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 6 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-1 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.92010 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : PIXEL REMARK 200 DETECTOR MANUFACTURER : DECTRIS EIGER X 9M REMARK 200 INTENSITY-INTEGRATION SOFTWARE : XDS REMARK 200 DATA SCALING SOFTWARE : XDS REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 60468 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.280 REMARK 200 RESOLUTION RANGE LOW (A) : 49.060 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 92.8 REMARK 200 DATA REDUNDANCY : 7.400 REMARK 200 R MERGE (I) : 0.08700 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 9.4000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.28 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.30 REMARK 200 COMPLETENESS FOR SHELL (%) : 97.9 REMARK 200 DATA REDUNDANCY IN SHELL : 7.70 REMARK 200 R MERGE FOR SHELL (I) : 3.02600 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 0.700 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: 2OV5 REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 44.21 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.20 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 0.1 M SODIUM ACETATE PH 6, 1.25 M REMARK 280 AMMONIUM CITRATE DIBASIC, VAPOR DIFFUSION, SITTING DROP, REMARK 280 TEMPERATURE 293K 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 25.72700 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 36.21750 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 33.33650 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 36.21750 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 25.72700 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 33.33650 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: MONOMERIC 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 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 ALA A 23 REMARK 465 LEU A 24 REMARK 465 GLY A 289 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 CYS A 68 -143.27 52.97 REMARK 500 ASP A 162 12.86 -140.73 REMARK 500 ARG A 219 -122.32 -114.08 REMARK 500 REMARK 500 REMARK: NULL DBREF 8G2R A 23 289 UNP Q9F663 BLKPC_KLEPN 24 289 SEQADV 8G2R ASN A 178 UNP Q9F663 ASP 178 ENGINEERED MUTATION SEQRES 1 A 266 ALA LEU THR ASN LEU VAL ALA GLU PRO PHE ALA LYS LEU SEQRES 2 A 266 GLU GLN ASP PHE GLY GLY SER ILE GLY VAL TYR ALA MET SEQRES 3 A 266 ASP THR GLY SER GLY ALA THR VAL SER TYR ARG ALA GLU SEQRES 4 A 266 GLU ARG PHE PRO LEU CYS SER SER PHE LYS GLY PHE LEU SEQRES 5 A 266 ALA ALA ALA VAL LEU ALA ARG SER GLN GLN GLN ALA GLY SEQRES 6 A 266 LEU LEU ASP THR PRO ILE ARG TYR GLY LYS ASN ALA LEU SEQRES 7 A 266 VAL PRO TRP SER PRO ILE SER GLU LYS TYR LEU THR THR SEQRES 8 A 266 GLY MET THR VAL ALA GLU LEU SER ALA ALA ALA VAL GLN SEQRES 9 A 266 TYR SER ASP ASN ALA ALA ALA ASN LEU LEU LEU LYS GLU SEQRES 10 A 266 LEU GLY GLY PRO ALA GLY LEU THR ALA PHE MET ARG SER SEQRES 11 A 266 ILE GLY ASP THR THR PHE ARG LEU ASP ARG TRP GLU LEU SEQRES 12 A 266 GLU LEU ASN SER ALA ILE PRO GLY ASP ALA ARG ASN THR SEQRES 13 A 266 SER SER PRO ARG ALA VAL THR GLU SER LEU GLN LYS LEU SEQRES 14 A 266 THR LEU GLY SER ALA LEU ALA ALA PRO GLN ARG GLN GLN SEQRES 15 A 266 PHE VAL ASP TRP LEU LYS GLY ASN THR THR GLY ASN HIS SEQRES 16 A 266 ARG ILE ARG ALA ALA VAL PRO ALA ASP TRP ALA VAL GLY SEQRES 17 A 266 ASP LYS THR GLY THR CYS GLY VAL TYR GLY THR ALA ASN SEQRES 18 A 266 ASP TYR ALA VAL VAL TRP PRO THR GLY ARG ALA PRO ILE SEQRES 19 A 266 VAL LEU ALA VAL TYR THR ARG ALA PRO ASN LYS ASP ASP SEQRES 20 A 266 LYS HIS SER GLU ALA VAL ILE ALA ALA ALA ALA ARG LEU SEQRES 21 A 266 ALA LEU GLU GLY LEU GLY HET NXL A 300 17 HETNAM NXL (2S,5R)-1-FORMYL-5-[(SULFOOXY)AMINO]PIPERIDINE-2- HETNAM 2 NXL CARBOXAMIDE HETSYN NXL AVIBACTAM, BOUND FORM; NXL104, BOUND FORM FORMUL 2 NXL C7 H13 N3 O6 S FORMUL 3 HOH *233(H2 O) HELIX 1 AA1 ALA A 29 GLY A 40 1 12 HELIX 2 AA2 SER A 70 GLN A 84 1 15 HELIX 3 AA3 GLY A 97 LEU A 101 5 5 HELIX 4 AA4 ILE A 107 LEU A 112 5 6 HELIX 5 AA5 VAL A 118 TYR A 128 1 11 HELIX 6 AA6 ASP A 130 GLY A 142 1 13 HELIX 7 AA7 GLY A 142 ILE A 154 1 13 HELIX 8 AA8 LEU A 166 SER A 170 5 5 HELIX 9 AA9 SER A 181 LEU A 194 1 14 HELIX 10 AB1 ALA A 199 GLY A 212 1 14 HELIX 11 AB2 ARG A 219 VAL A 224 5 6 HELIX 12 AB3 GLY A 238 GLY A 241 5 4 HELIX 13 AB4 SER A 273 LEU A 288 1 16 SHEET 1 AA1 5 THR A 55 TYR A 59 0 SHEET 2 AA1 5 SER A 42 ASP A 49 -1 N VAL A 45 O TYR A 59 SHEET 3 AA1 5 ILE A 257 ARG A 264 -1 O TYR A 262 N GLY A 44 SHEET 4 AA1 5 ALA A 243 TRP A 250 -1 N VAL A 249 O ILE A 257 SHEET 5 AA1 5 ALA A 229 THR A 236 -1 N ALA A 229 O TRP A 250 SHEET 1 AA2 2 PHE A 65 PRO A 66 0 SHEET 2 AA2 2 THR A 179 SER A 180 -1 O SER A 180 N PHE A 65 SHEET 1 AA3 2 PRO A 93 ILE A 94 0 SHEET 2 AA3 2 MET A 116 THR A 117 -1 O MET A 116 N ILE A 94 SSBOND 1 CYS A 68 CYS A 237 1555 1555 2.15 LINK OG SER A 69 CAN NXL A 300 1555 1555 1.36 CISPEP 1 GLU A 165 LEU A 166 0 5.10 CRYST1 51.454 66.673 72.435 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 0.019435 0.000000 0.000000 0.00000 SCALE2 0.000000 0.014999 0.000000 0.00000 SCALE3 0.000000 0.000000 0.013805 0.00000