HEADER VIRAL PROTEIN 13-MAR-14 4PUS TITLE CRYSTAL STRUCTURE OF INFLUENZA A VIRUS MATRIX PROTEIN M1 COMPND MOL_ID: 1; COMPND 2 MOLECULE: MATRIX PROTEIN 1; COMPND 3 CHAIN: A, B; COMPND 4 FRAGMENT: N-TERMINAL DOMAIN (UNP RESIDUES 2-165); COMPND 5 SYNONYM: MATRIX PROTEIN M1; COMPND 6 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: INFLUENZA A VIRUS; SOURCE 3 ORGANISM_TAXID: 381518; SOURCE 4 STRAIN: A/WILSON-SMITH/1933 H1N1; SOURCE 5 GENE: M; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 469008; SOURCE 8 EXPRESSION_SYSTEM_STRAIN: NICO21(DE3); SOURCE 9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 10 EXPRESSION_SYSTEM_PLASMID: PET30B KEYWDS FLU, H1N1, OLIGOMERIZATION, FOUR-HELIX BUNDLE, VIRION ASSEMBLY, KEYWDS 2 INFECTION, VIRAL PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR M.K.SAFO,F.N.MUSAYEV,P.D.MOSIER,H.XIE,U.R.DESAI REVDAT 2 20-SEP-23 4PUS 1 SEQADV REVDAT 1 22-OCT-14 4PUS 0 JRNL AUTH M.K.SAFO,F.N.MUSAYEV,P.D.MOSIER,Q.ZHOU,H.XIE,U.R.DESAI JRNL TITL CRYSTAL STRUCTURES OF INFLUENZA A VIRUS MATRIX PROTEIN M1: JRNL TITL 2 VARIATIONS ON A THEME. JRNL REF PLOS ONE V. 9 09510 2014 JRNL REFN ESSN 1932-6203 JRNL PMID 25295515 JRNL DOI 10.1371/JOURNAL.PONE.0109510 REMARK 2 REMARK 2 RESOLUTION. 2.20 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CNS 1.1 REMARK 3 AUTHORS : BRUNGER,ADAMS,CLORE,DELANO,GROS,GROSSE- REMARK 3 : KUNSTLEVE,JIANG,KUSZEWSKI,NILGES,PANNU, REMARK 3 : READ,RICE,SIMONSON,WARREN REMARK 3 REMARK 3 REFINEMENT TARGET : ENGH & HUBER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.20 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 27.99 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : 1085064.520 REMARK 3 DATA CUTOFF LOW (ABS(F)) : 0.0000 REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 98.3 REMARK 3 NUMBER OF REFLECTIONS : 18971 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 SET) : 0.226 REMARK 3 FREE R VALUE : 0.264 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.100 REMARK 3 FREE R VALUE TEST SET COUNT : 972 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : 0.008 REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : 10 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 2.20 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.28 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 98.50 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 1729 REMARK 3 BIN R VALUE (WORKING SET) : 0.2830 REMARK 3 BIN FREE R VALUE : 0.3160 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 5.60 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 102 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : 0.031 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 2236 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 0 REMARK 3 SOLVENT ATOMS : 158 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 41.90 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 56.80 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 2.63000 REMARK 3 B22 (A**2) : 3.36000 REMARK 3 B33 (A**2) : -5.99000 REMARK 3 B12 (A**2) : 0.00000 REMARK 3 B13 (A**2) : 4.27000 REMARK 3 B23 (A**2) : 0.00000 REMARK 3 REMARK 3 ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM LUZZATI PLOT (A) : 0.27 REMARK 3 ESD FROM SIGMAA (A) : 0.25 REMARK 3 LOW RESOLUTION CUTOFF (A) : 5.00 REMARK 3 REMARK 3 CROSS-VALIDATED ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM C-V LUZZATI PLOT (A) : 0.34 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.32 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.009 REMARK 3 BOND ANGLES (DEGREES) : 1.400 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 18.80 REMARK 3 IMPROPER ANGLES (DEGREES) : 1.030 REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : RESTRAINED REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. RMS SIGMA REMARK 3 MAIN-CHAIN BOND (A**2) : NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE (A**2) : NULL ; NULL REMARK 3 SIDE-CHAIN BOND (A**2) : NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE (A**2) : NULL ; NULL REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED : FLAT MODEL REMARK 3 KSOL : 0.31 REMARK 3 BSOL : 49.09 REMARK 3 REMARK 3 NCS MODEL : NULL REMARK 3 REMARK 3 NCS RESTRAINTS. RMS SIGMA/WEIGHT REMARK 3 GROUP 1 POSITIONAL (A) : NULL ; NULL REMARK 3 GROUP 1 B-FACTOR (A**2) : NULL ; NULL REMARK 3 REMARK 3 PARAMETER FILE 1 : NULL REMARK 3 TOPOLOGY FILE 1 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 4PUS COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 17-MAR-14. REMARK 100 THE DEPOSITION ID IS D_1000085244. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 22-FEB-13 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 4.7 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : N REMARK 200 RADIATION SOURCE : ROTATING ANODE REMARK 200 BEAMLINE : NULL REMARK 200 X-RAY GENERATOR MODEL : RIGAKU MICROMAX-007 REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418 REMARK 200 MONOCHROMATOR : MIRROR REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : RIGAKU RAXIS IV++ REMARK 200 INTENSITY-INTEGRATION SOFTWARE : D*TREK REMARK 200 DATA SCALING SOFTWARE : D*TREK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 19111 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.200 REMARK 200 RESOLUTION RANGE LOW (A) : 27.990 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.1 REMARK 200 DATA REDUNDANCY : 3.490 REMARK 200 R MERGE (I) : 0.04500 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 15.2000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.20 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.28 REMARK 200 COMPLETENESS FOR SHELL (%) : NULL REMARK 200 DATA REDUNDANCY IN SHELL : 3.28 REMARK 200 R MERGE FOR SHELL (I) : 0.23700 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 4.700 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: PHENIX REMARK 200 STARTING MODEL: PDB ENTRIES 1EA3 AND 1AA7 REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 49.93 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.46 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PROTEIN IN 55 MM PHOSPHATE, 0.2 M REMARK 280 SODIUM CHLORIDE, 2 MM TCEP, PH 4.0, PRECIPITANT: 15% PEG3000, 75 REMARK 280 MM SODIUM CITRATE, PH 5.5, VAPOR DIFFUSION, HANGING DROP, REMARK 280 TEMPERATURE 298K, PH 4.7 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 18.67300 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: DIMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 1310 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 14760 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -8.0 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 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 MET A -5 REMARK 465 HIS A -4 REMARK 465 HIS A -3 REMARK 465 HIS A -2 REMARK 465 HIS A -1 REMARK 465 HIS A 0 REMARK 465 HIS A 159 REMARK 465 ARG A 160 REMARK 465 SER A 161 REMARK 465 HIS A 162 REMARK 465 ARG A 163 REMARK 465 GLN A 164 REMARK 465 MET A 165 REMARK 465 MET B -5 REMARK 465 HIS B -4 REMARK 465 HIS B -3 REMARK 465 HIS B -2 REMARK 465 HIS B -1 REMARK 465 HIS B 0 REMARK 465 HIS B 1 REMARK 465 SER B 17 REMARK 465 GLY B 18 REMARK 465 PRO B 19 REMARK 465 LEU B 28 REMARK 465 GLU B 29 REMARK 465 ASP B 30 REMARK 465 VAL B 31 REMARK 465 PHE B 32 REMARK 465 ALA B 33 REMARK 465 GLY B 34 REMARK 465 LYS B 35 REMARK 465 ASN B 36 REMARK 465 THR B 37 REMARK 465 ASP B 38 REMARK 465 LEU B 39 REMARK 465 GLU B 40 REMARK 465 VAL B 41 REMARK 465 LEU B 42 REMARK 465 MET B 43 REMARK 465 GLU B 44 REMARK 465 ARG B 72 REMARK 465 GLY B 73 REMARK 465 LEU B 74 REMARK 465 SER B 157 REMARK 465 GLN B 158 REMARK 465 HIS B 159 REMARK 465 ARG B 160 REMARK 465 SER B 161 REMARK 465 HIS B 162 REMARK 465 ARG B 163 REMARK 465 GLN B 164 REMARK 465 MET B 165 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 SER A 2 101.45 75.37 REMARK 500 PRO A 16 -78.94 -62.42 REMARK 500 SER A 17 -105.69 1.76 REMARK 500 LYS A 35 169.96 -44.13 REMARK 500 ILE A 51 -50.02 73.02 REMARK 500 SER A 70 67.07 -34.17 REMARK 500 GLU A 71 -115.09 -113.69 REMARK 500 ARG A 72 35.18 37.49 REMARK 500 LEU A 74 92.30 -32.28 REMARK 500 GLN A 75 -107.24 -62.45 REMARK 500 ARG A 76 81.47 58.14 REMARK 500 ASN A 87 57.68 -172.03 REMARK 500 ARG A 134 82.83 -162.65 REMARK 500 VAL B 15 133.08 -34.90 REMARK 500 LYS B 21 -49.46 -164.22 REMARK 500 ALA B 22 101.51 78.82 REMARK 500 LEU B 46 -151.51 -109.19 REMARK 500 LYS B 47 -130.65 -121.55 REMARK 500 THR B 48 -152.01 -59.63 REMARK 500 ARG B 49 7.14 -179.63 REMARK 500 PRO B 50 -160.29 10.85 REMARK 500 ILE B 51 110.45 40.78 REMARK 500 LEU B 52 -164.30 58.02 REMARK 500 SER B 53 102.54 64.13 REMARK 500 PRO B 54 -122.44 -71.99 REMARK 500 THR B 65 -4.08 -58.57 REMARK 500 VAL B 68 -38.21 -137.04 REMARK 500 PRO B 69 -174.15 -66.49 REMARK 500 SER B 70 -151.74 -73.92 REMARK 500 ARG B 76 -97.72 66.06 REMARK 500 ARG B 78 -109.46 -65.53 REMARK 500 LEU B 84 35.93 -88.47 REMARK 500 ILE B 107 -16.22 -151.41 REMARK 500 PHE B 109 -72.80 -78.03 REMARK 500 TYR B 132 -75.50 -44.39 REMARK 500 ASN B 133 -33.25 -35.73 REMARK 500 ILE B 154 -72.56 -61.59 REMARK 500 REMARK 500 REMARK: NULL DBREF 4PUS A 2 165 UNP P05777 M1_I33A0 2 165 DBREF 4PUS B 2 165 UNP P05777 M1_I33A0 2 165 SEQADV 4PUS MET A -5 UNP P05777 EXPRESSION TAG SEQADV 4PUS HIS A -4 UNP P05777 EXPRESSION TAG SEQADV 4PUS HIS A -3 UNP P05777 EXPRESSION TAG SEQADV 4PUS HIS A -2 UNP P05777 EXPRESSION TAG SEQADV 4PUS HIS A -1 UNP P05777 EXPRESSION TAG SEQADV 4PUS HIS A 0 UNP P05777 EXPRESSION TAG SEQADV 4PUS HIS A 1 UNP P05777 EXPRESSION TAG SEQADV 4PUS MET B -5 UNP P05777 EXPRESSION TAG SEQADV 4PUS HIS B -4 UNP P05777 EXPRESSION TAG SEQADV 4PUS HIS B -3 UNP P05777 EXPRESSION TAG SEQADV 4PUS HIS B -2 UNP P05777 EXPRESSION TAG SEQADV 4PUS HIS B -1 UNP P05777 EXPRESSION TAG SEQADV 4PUS HIS B 0 UNP P05777 EXPRESSION TAG SEQADV 4PUS HIS B 1 UNP P05777 EXPRESSION TAG SEQRES 1 A 171 MET HIS HIS HIS HIS HIS HIS SER LEU LEU THR GLU VAL SEQRES 2 A 171 GLU THR TYR VAL LEU SER ILE VAL PRO SER GLY PRO LEU SEQRES 3 A 171 LYS ALA GLU ILE ALA GLN ARG LEU GLU ASP VAL PHE ALA SEQRES 4 A 171 GLY LYS ASN THR ASP LEU GLU VAL LEU MET GLU TRP LEU SEQRES 5 A 171 LYS THR ARG PRO ILE LEU SER PRO LEU THR LYS GLY ILE SEQRES 6 A 171 LEU GLY PHE VAL PHE THR LEU THR VAL PRO SER GLU ARG SEQRES 7 A 171 GLY LEU GLN ARG ARG ARG PHE VAL GLN ASN ALA LEU ASN SEQRES 8 A 171 GLY ASN GLY ASP PRO ASN ASN MET ASP LYS ALA VAL LYS SEQRES 9 A 171 LEU TYR ARG LYS LEU LYS ARG GLU ILE THR PHE HIS GLY SEQRES 10 A 171 ALA LYS GLU ILE ALA LEU SER TYR SER ALA GLY ALA LEU SEQRES 11 A 171 ALA SER CYS MET GLY LEU ILE TYR ASN ARG MET GLY ALA SEQRES 12 A 171 VAL THR THR GLU VAL ALA PHE GLY LEU VAL CYS ALA THR SEQRES 13 A 171 CYS GLU GLN ILE ALA ASP SER GLN HIS ARG SER HIS ARG SEQRES 14 A 171 GLN MET SEQRES 1 B 171 MET HIS HIS HIS HIS HIS HIS SER LEU LEU THR GLU VAL SEQRES 2 B 171 GLU THR TYR VAL LEU SER ILE VAL PRO SER GLY PRO LEU SEQRES 3 B 171 LYS ALA GLU ILE ALA GLN ARG LEU GLU ASP VAL PHE ALA SEQRES 4 B 171 GLY LYS ASN THR ASP LEU GLU VAL LEU MET GLU TRP LEU SEQRES 5 B 171 LYS THR ARG PRO ILE LEU SER PRO LEU THR LYS GLY ILE SEQRES 6 B 171 LEU GLY PHE VAL PHE THR LEU THR VAL PRO SER GLU ARG SEQRES 7 B 171 GLY LEU GLN ARG ARG ARG PHE VAL GLN ASN ALA LEU ASN SEQRES 8 B 171 GLY ASN GLY ASP PRO ASN ASN MET ASP LYS ALA VAL LYS SEQRES 9 B 171 LEU TYR ARG LYS LEU LYS ARG GLU ILE THR PHE HIS GLY SEQRES 10 B 171 ALA LYS GLU ILE ALA LEU SER TYR SER ALA GLY ALA LEU SEQRES 11 B 171 ALA SER CYS MET GLY LEU ILE TYR ASN ARG MET GLY ALA SEQRES 12 B 171 VAL THR THR GLU VAL ALA PHE GLY LEU VAL CYS ALA THR SEQRES 13 B 171 CYS GLU GLN ILE ALA ASP SER GLN HIS ARG SER HIS ARG SEQRES 14 B 171 GLN MET FORMUL 3 HOH *158(H2 O) HELIX 1 1 SER A 2 SER A 13 1 12 HELIX 2 2 GLY A 18 ALA A 33 1 16 HELIX 3 3 ASP A 38 ARG A 49 1 12 HELIX 4 4 SER A 53 VAL A 68 1 16 HELIX 5 5 ARG A 77 LEU A 84 1 8 HELIX 6 6 ASP A 89 ARG A 105 1 17 HELIX 7 7 THR A 108 LEU A 117 1 10 HELIX 8 8 SER A 120 ASN A 133 1 14 HELIX 9 9 ARG A 134 VAL A 138 5 5 HELIX 10 10 THR A 139 GLN A 158 1 20 HELIX 11 11 LEU B 3 LEU B 12 1 10 HELIX 12 12 PRO B 54 VAL B 68 1 15 HELIX 13 13 ARG B 78 LEU B 84 1 7 HELIX 14 14 ASP B 89 GLU B 106 1 18 HELIX 15 15 THR B 108 LEU B 117 1 10 HELIX 16 16 SER B 120 ARG B 134 1 15 HELIX 17 17 MET B 135 VAL B 138 5 4 HELIX 18 18 THR B 139 ASP B 156 1 18 CRYST1 54.300 37.346 94.974 90.00 102.44 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 0.018416 0.000000 0.004063 0.00000 SCALE2 0.000000 0.026777 0.000000 0.00000 SCALE3 0.000000 0.000000 0.010782 0.00000