HEADER TRANSFERASE 13-JAN-99 1B6B TITLE MELATONIN BIOSYNTHESIS: THE STRUCTURE OF SEROTONIN N-ACETYLTRANSFERASE TITLE 2 AT 2.5 A RESOLUTION SUGGESTS A CATALYTIC MECHANISM COMPND MOL_ID: 1; COMPND 2 MOLECULE: PROTEIN (ARYLALKYLAMINE N-ACETYLTRANSFERASE); COMPND 3 CHAIN: A, B; COMPND 4 EC: 2.3.1.87; COMPND 5 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: OVIS ARIES; SOURCE 3 ORGANISM_COMMON: SHEEP; SOURCE 4 ORGANISM_TAXID: 9940; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 562 KEYWDS ACETYLTRANSFERASE, TRANSFERASE EXPDTA X-RAY DIFFRACTION AUTHOR A.B.HICKMAN,D.C.KLEIN,F.DYDA REVDAT 3 27-DEC-23 1B6B 1 REMARK REVDAT 2 24-FEB-09 1B6B 1 VERSN REVDAT 1 14-JAN-00 1B6B 0 JRNL AUTH A.B.HICKMAN,D.C.KLEIN,F.DYDA JRNL TITL MELATONIN BIOSYNTHESIS: THE STRUCTURE OF SEROTONIN JRNL TITL 2 N-ACETYLTRANSFERASE AT 2.5 A RESOLUTION SUGGESTS A CATALYTIC JRNL TITL 3 MECHANISM. JRNL REF MOL.CELL V. 3 23 1999 JRNL REFN ISSN 1097-2765 JRNL PMID 10024876 JRNL DOI 10.1016/S1097-2765(00)80171-9 REMARK 2 REMARK 2 RESOLUTION. 2.50 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : X-PLOR 3.1 REMARK 3 AUTHORS : BRUNGER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.50 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 30.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 2.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : NULL REMARK 3 DATA CUTOFF LOW (ABS(F)) : NULL REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 92.6 REMARK 3 NUMBER OF REFLECTIONS : 12034 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) : 0.217 REMARK 3 FREE R VALUE : 0.282 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.000 REMARK 3 FREE R VALUE TEST SET COUNT : 619 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : NULL 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) : NULL REMARK 3 BIN RESOLUTION RANGE LOW (A) : NULL REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : NULL REMARK 3 REFLECTIONS IN BIN (WORKING SET) : NULL REMARK 3 BIN R VALUE (WORKING SET) : NULL REMARK 3 BIN FREE R VALUE : NULL REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 BIN FREE R VALUE TEST SET COUNT : NULL REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : NULL REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 2471 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 0 REMARK 3 SOLVENT ATOMS : 132 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : NULL 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 ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM LUZZATI PLOT (A) : NULL REMARK 3 ESD FROM SIGMAA (A) : NULL REMARK 3 LOW RESOLUTION CUTOFF (A) : NULL REMARK 3 REMARK 3 CROSS-VALIDATED ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM C-V LUZZATI PLOT (A) : NULL REMARK 3 ESD FROM C-V SIGMAA (A) : NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.008 REMARK 3 BOND ANGLES (DEGREES) : 1.442 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 25.37 REMARK 3 IMPROPER ANGLES (DEGREES) : 1.137 REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : NULL 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 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 : PARHCSDX.PRO REMARK 3 PARAMETER FILE 2 : NULL REMARK 3 TOPOLOGY FILE 1 : TOPHCSDX.PRO REMARK 3 TOPOLOGY FILE 2 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: IN STRUCTURE DETERMINATION, A TRUNCATED REMARK 3 CONSTRUCT WAS USED BETWEEN RESIDUES REMARK 3 27 - 201 REMARK 4 REMARK 4 1B6B COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 26-JUL-99. REMARK 100 THE DEPOSITION ID IS D_1000007226. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 15-JUN-98 REMARK 200 TEMPERATURE (KELVIN) : 95 REMARK 200 PH : 6.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : NSLS REMARK 200 BEAMLINE : X9B REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.97935, 0.97900, 0.96860 REMARK 200 MONOCHROMATOR : SI111 REMARK 200 OPTICS : MIRROR REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : MARRESEARCH REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 6476 REMARK 200 RESOLUTION RANGE HIGH (A) : 3.000 REMARK 200 RESOLUTION RANGE LOW (A) : 20.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 85.4 REMARK 200 DATA REDUNDANCY : 5.000 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 6.30000 REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 14.5000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 3.00 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 3.11 REMARK 200 COMPLETENESS FOR SHELL (%) : 93.2 REMARK 200 DATA REDUNDANCY IN SHELL : 3.00 REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : 13.2000 REMARK 200 <I/SIGMA(I)> FOR SHELL : 10.50 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: MAD REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MAD REMARK 200 SOFTWARE USED: PHASES REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 51.00 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.46 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PH 6.5 REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 61 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -Y,X-Y,Z+1/3 REMARK 290 3555 -X+Y,-X,Z+2/3 REMARK 290 4555 -X,-Y,Z+1/2 REMARK 290 5555 Y,-X+Y,Z+5/6 REMARK 290 6555 X-Y,X,Z+1/6 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 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 2 0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 69.25000 REMARK 290 SMTRY1 3 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 3 -0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 138.50000 REMARK 290 SMTRY1 4 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 103.87500 REMARK 290 SMTRY1 5 0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 5 -0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 5 0.000000 0.000000 1.000000 173.12500 REMARK 290 SMTRY1 6 0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 6 0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 6 0.000000 0.000000 1.000000 34.62500 REMARK 290 REMARK 290 REMARK: NULL REMARK 300 REMARK 300 BIOMOLECULE: 1, 2 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 350 REMARK 350 BIOMOLECULE: 2 REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: MONOMERIC REMARK 350 APPLY THE FOLLOWING TO CHAINS: 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 ARG A 28 REMARK 465 ARG A 29 REMARK 465 HIS A 30 REMARK 465 THR A 31 REMARK 465 LEU A 32 REMARK 465 PRO A 33 REMARK 465 ARG B 28 REMARK 465 ARG B 29 REMARK 465 HIS B 30 REMARK 465 THR B 31 REMARK 465 LEU B 32 REMARK 465 PRO B 33 REMARK 465 ALA B 34 REMARK 465 ILE B 57 REMARK 465 SER B 58 REMARK 465 VAL B 59 REMARK 465 SER B 60 REMARK 465 GLY B 61 REMARK 465 ASN B 62 REMARK 465 CYS B 63 REMARK 465 PRO B 64 REMARK 465 LEU B 65 REMARK 465 ASN B 66 REMARK 465 LEU B 67 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 ARG A 53 CG CD NE CZ NH1 NH2 REMARK 470 PHE A 56 CG CD1 CD2 CE1 CE2 CZ REMARK 470 ARG A 115 CG CD NE CZ NH1 NH2 REMARK 470 ARG A 128 CG CD NE CZ NH1 NH2 REMARK 470 ARG A 131 CG CD NE CZ NH1 NH2 REMARK 470 CYS A 179 SG REMARK 470 LEU A 201 CG CD1 CD2 REMARK 470 ASN B 35 CG OD1 ND2 REMARK 470 GLU B 43 CG CD OE1 OE2 REMARK 470 PHE B 49 CG CD1 CD2 CE1 CE2 CZ REMARK 470 GLU B 50 CG CD OE1 OE2 REMARK 470 ARG B 53 CG CD NE CZ NH1 NH2 REMARK 470 GLU B 54 CG CD OE1 OE2 REMARK 470 PHE B 56 CG CD1 CD2 CE1 CE2 CZ REMARK 470 GLU B 69 CG CD OE1 OE2 REMARK 470 ARG B 103 CG CD NE CZ NH1 NH2 REMARK 470 GLN B 132 CG CD OE1 NE2 REMARK 470 LYS B 135 CG CD CE NZ REMARK 470 ARG B 154 CG CD NE CZ NH1 NH2 REMARK 470 LEU B 201 CG CD1 CD2 REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: COVALENT BOND ANGLES REMARK 500 REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 STANDARD TABLE: REMARK 500 FORMAT: (10X,I3,1X,A3,1X,A1,I4,A1,3(1X,A4,2X),12X,F5.1) REMARK 500 REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999 REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996 REMARK 500 REMARK 500 M RES CSSEQI ATM1 ATM2 ATM3 REMARK 500 PRO A 178 C - N - CA ANGL. DEV. = 9.1 DEGREES 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 ASN A 35 88.38 -170.42 REMARK 500 GLU A 52 -118.56 -61.80 REMARK 500 SER A 58 41.81 29.99 REMARK 500 LEU A 67 75.27 -42.95 REMARK 500 ASP A 68 -20.27 54.56 REMARK 500 CYS A 77 71.94 -164.07 REMARK 500 ARG A 115 45.88 -94.26 REMARK 500 ARG A 128 36.72 28.84 REMARK 500 PRO A 178 -95.70 -51.09 REMARK 500 CYS A 179 84.80 54.27 REMARK 500 ALA A 200 -27.84 -140.51 REMARK 500 GLU B 69 -15.98 74.97 REMARK 500 GLU B 107 -37.32 74.54 REMARK 500 SER B 129 32.22 -83.83 REMARK 500 ARG B 131 -86.94 -37.15 REMARK 500 GLN B 132 36.63 -72.53 REMARK 500 ARG B 196 -48.28 -164.85 REMARK 500 REMARK 500 REMARK: NULL DBREF 1B6B A 28 201 UNP Q29495 SNAT_SHEEP 28 201 DBREF 1B6B B 28 201 UNP Q29495 SNAT_SHEEP 28 201 SEQRES 1 A 174 ARG ARG HIS THR LEU PRO ALA ASN GLU PHE ARG CYS LEU SEQRES 2 A 174 THR PRO GLU ASP ALA ALA GLY VAL PHE GLU ILE GLU ARG SEQRES 3 A 174 GLU ALA PHE ILE SER VAL SER GLY ASN CYS PRO LEU ASN SEQRES 4 A 174 LEU ASP GLU VAL GLN HIS PHE LEU THR LEU CYS PRO GLU SEQRES 5 A 174 LEU SER LEU GLY TRP PHE VAL GLU GLY ARG LEU VAL ALA SEQRES 6 A 174 PHE ILE ILE GLY SER LEU TRP ASP GLU GLU ARG LEU THR SEQRES 7 A 174 GLN GLU SER LEU ALA LEU HIS ARG PRO ARG GLY HIS SER SEQRES 8 A 174 ALA HIS LEU HIS ALA LEU ALA VAL HIS ARG SER PHE ARG SEQRES 9 A 174 GLN GLN GLY LYS GLY SER VAL LEU LEU TRP ARG TYR LEU SEQRES 10 A 174 HIS HIS VAL GLY ALA GLN PRO ALA VAL ARG ARG ALA VAL SEQRES 11 A 174 LEU MET CYS GLU ASP ALA LEU VAL PRO PHE TYR GLN ARG SEQRES 12 A 174 PHE GLY PHE HIS PRO ALA GLY PRO CYS ALA ILE VAL VAL SEQRES 13 A 174 GLY SER LEU THR PHE THR GLU MET HIS CYS SER LEU ARG SEQRES 14 A 174 GLY HIS ALA ALA LEU SEQRES 1 B 174 ARG ARG HIS THR LEU PRO ALA ASN GLU PHE ARG CYS LEU SEQRES 2 B 174 THR PRO GLU ASP ALA ALA GLY VAL PHE GLU ILE GLU ARG SEQRES 3 B 174 GLU ALA PHE ILE SER VAL SER GLY ASN CYS PRO LEU ASN SEQRES 4 B 174 LEU ASP GLU VAL GLN HIS PHE LEU THR LEU CYS PRO GLU SEQRES 5 B 174 LEU SER LEU GLY TRP PHE VAL GLU GLY ARG LEU VAL ALA SEQRES 6 B 174 PHE ILE ILE GLY SER LEU TRP ASP GLU GLU ARG LEU THR SEQRES 7 B 174 GLN GLU SER LEU ALA LEU HIS ARG PRO ARG GLY HIS SER SEQRES 8 B 174 ALA HIS LEU HIS ALA LEU ALA VAL HIS ARG SER PHE ARG SEQRES 9 B 174 GLN GLN GLY LYS GLY SER VAL LEU LEU TRP ARG TYR LEU SEQRES 10 B 174 HIS HIS VAL GLY ALA GLN PRO ALA VAL ARG ARG ALA VAL SEQRES 11 B 174 LEU MET CYS GLU ASP ALA LEU VAL PRO PHE TYR GLN ARG SEQRES 12 B 174 PHE GLY PHE HIS PRO ALA GLY PRO CYS ALA ILE VAL VAL SEQRES 13 B 174 GLY SER LEU THR PHE THR GLU MET HIS CYS SER LEU ARG SEQRES 14 B 174 GLY HIS ALA ALA LEU FORMUL 3 HOH *132(H2 O) HELIX 1 1 PRO A 42 PHE A 49 1 8 HELIX 2 2 GLN A 71 LEU A 76 5 6 HELIX 3 3 PRO A 78 LEU A 80 5 3 HELIX 4 4 GLU A 107 ALA A 110 5 4 HELIX 5 5 HIS A 127 SER A 129 5 3 HELIX 6 6 LYS A 135 ALA A 149 1 15 HELIX 7 7 ASP A 162 PHE A 171 1 10 HELIX 8 8 PRO B 42 ALA B 46 1 5 HELIX 9 9 GLN B 71 LEU B 76 5 6 HELIX 10 10 PRO B 78 LEU B 80 5 3 HELIX 11 11 ARG B 128 GLN B 133 5 6 HELIX 12 12 LYS B 135 GLY B 148 1 14 HELIX 13 13 ASP B 162 PHE B 171 1 10 HELIX 14 14 GLY B 197 ALA B 199 5 3 SHEET 1 A 7 GLU A 36 ARG A 38 0 SHEET 2 A 7 SER A 81 VAL A 86 -1 N PHE A 85 O GLU A 36 SHEET 3 A 7 ARG A 89 TRP A 99 -1 N ILE A 94 O LEU A 82 SHEET 4 A 7 SER A 118 VAL A 126 -1 N ALA A 125 O PHE A 93 SHEET 5 A 7 ARG A 155 CYS A 160 1 N ARG A 155 O ALA A 119 SHEET 6 A 7 THR A 189 SER A 194 -1 N CYS A 193 O ALA A 156 SHEET 7 A 7 HIS A 174 GLY A 177 -1 N GLY A 177 O GLU A 190 SHEET 1 B 7 GLU B 36 ARG B 38 0 SHEET 2 B 7 SER B 81 VAL B 86 -1 N PHE B 85 O GLU B 36 SHEET 3 B 7 ARG B 89 TRP B 99 -1 N ILE B 94 O LEU B 82 SHEET 4 B 7 SER B 118 VAL B 126 -1 N ALA B 125 O PHE B 93 SHEET 5 B 7 ARG B 155 CYS B 160 1 N ARG B 155 O ALA B 119 SHEET 6 B 7 PHE B 188 SER B 194 -1 N CYS B 193 O ALA B 156 SHEET 7 B 7 HIS B 174 CYS B 179 -1 N CYS B 179 O PHE B 188 CRYST1 56.610 56.610 207.750 90.00 90.00 120.00 P 61 12 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 0.017665 0.010199 0.000000 0.00000 SCALE2 0.000000 0.020397 0.000000 0.00000 SCALE3 0.000000 0.000000 0.004813 0.00000 MTRIX1 1 -0.823700 -0.562900 -0.068100 9.95070 1 MTRIX2 1 0.524800 -0.802400 0.284100 -10.39190 1 MTRIX3 1 -0.214600 0.198300 0.956400 -14.84550 1