HEADER GENE REGULATION 04-SEP-98 1BUO TITLE BTB DOMAIN FROM PLZF COMPND MOL_ID: 1; COMPND 2 MOLECULE: PROTEIN (PROMYELOCYTIC LEUKEMIA ZINC FINGER PROTEIN PLZF); COMPND 3 CHAIN: A; COMPND 4 FRAGMENT: BTB DOMAIN; COMPND 5 SYNONYM: POZ DOMAIN; COMPND 6 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: HOMO SAPIENS; SOURCE 3 ORGANISM_COMMON: HUMAN; SOURCE 4 ORGANISM_TAXID: 9606; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 7 EXPRESSION_SYSTEM_CELL_LINE: B834(DE3); SOURCE 8 EXPRESSION_SYSTEM_PLASMID: PET-32(A) KEYWDS PROTEIN-PROTEIN INTERACTION DOMAIN, TRANSCRIPTIONAL REPRESSOR, ZINC- KEYWDS 2 FINGER PROTEIN, PROTEIN STRUCTURE, PROMYELOCYTIC LEUKEMIA, GENE KEYWDS 3 REGULATION EXPDTA X-RAY DIFFRACTION AUTHOR K.F.AHMAD,C.K.ENGEL,G.G.PRIVE REVDAT 6 07-FEB-24 1BUO 1 REMARK REVDAT 5 04-OCT-17 1BUO 1 REMARK REVDAT 4 13-JUL-11 1BUO 1 VERSN REVDAT 3 24-FEB-09 1BUO 1 VERSN REVDAT 2 29-DEC-99 1BUO 4 HEADER COMPND REMARK JRNL REVDAT 2 2 4 ATOM SOURCE SEQRES REVDAT 1 14-OCT-98 1BUO 0 JRNL AUTH K.F.AHMAD,C.K.ENGEL,G.G.PRIVE JRNL TITL CRYSTAL STRUCTURE OF THE BTB DOMAIN FROM PLZF. JRNL REF PROC.NATL.ACAD.SCI.USA V. 95 12123 1998 JRNL REFN ISSN 0027-8424 JRNL PMID 9770450 JRNL DOI 10.1073/PNAS.95.21.12123 REMARK 2 REMARK 2 RESOLUTION. 1.90 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC REMARK 3 AUTHORS : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER, REMARK 3 : NICHOLLS,WINN,LONG,VAGIN REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.90 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 20.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 94.0 REMARK 3 NUMBER OF REFLECTIONS : 17266 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) : NULL REMARK 3 R VALUE (WORKING SET) : 0.212 REMARK 3 FREE R VALUE : 0.252 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.000 REMARK 3 FREE R VALUE TEST SET COUNT : 909 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 972 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 0 REMARK 3 SOLVENT ATOMS : 129 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 OVERALL COORDINATE ERROR. REMARK 3 ESU BASED ON R VALUE (A): NULL REMARK 3 ESU BASED ON FREE R VALUE (A): NULL REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): NULL REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 DISTANCE RESTRAINTS. RMS SIGMA REMARK 3 BOND LENGTH (A) : 0.021 ; NULL REMARK 3 ANGLE DISTANCE (A) : 0.042 ; NULL REMARK 3 INTRAPLANAR 1-4 DISTANCE (A) : NULL ; NULL REMARK 3 H-BOND OR METAL COORDINATION (A) : NULL ; NULL REMARK 3 REMARK 3 PLANE RESTRAINT (A) : NULL ; NULL REMARK 3 CHIRAL-CENTER RESTRAINT (A**3) : NULL ; NULL REMARK 3 REMARK 3 NON-BONDED CONTACT RESTRAINTS. REMARK 3 SINGLE TORSION (A) : NULL ; NULL REMARK 3 MULTIPLE TORSION (A) : NULL ; NULL REMARK 3 H-BOND (X...Y) (A) : NULL ; NULL REMARK 3 H-BOND (X-H...Y) (A) : NULL ; NULL REMARK 3 REMARK 3 CONFORMATIONAL TORSION ANGLE RESTRAINTS. REMARK 3 SPECIFIED (DEGREES) : NULL ; NULL REMARK 3 PLANAR (DEGREES) : NULL ; NULL REMARK 3 STAGGERED (DEGREES) : NULL ; NULL REMARK 3 TRANSVERSE (DEGREES) : NULL ; 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 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1BUO COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB. REMARK 100 THE DEPOSITION ID IS D_1000008322. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : NULL REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 7.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : CHESS REMARK 200 BEAMLINE : F2 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.9638, 0.9790, 0.9793 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : NULL REMARK 200 INTENSITY-INTEGRATION SOFTWARE : MOSFLM REMARK 200 DATA SCALING SOFTWARE : CCP4 (SCALA) REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 18253 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.900 REMARK 200 RESOLUTION RANGE LOW (A) : 20.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.3 REMARK 200 DATA REDUNDANCY : 11.20 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.04400 REMARK 200 FOR THE DATA SET : 11.2000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.90 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.00 REMARK 200 COMPLETENESS FOR SHELL (%) : 96.7 REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : 0.24800 REMARK 200 FOR SHELL : 3.000 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: MAD REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MAD REMARK 200 SOFTWARE USED: SHARP, SHELXL-97 REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 60.00 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 4.00 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 0.15 M CACL2, 0.1 M HEPES (PH 7.5), 4% REMARK 280 ISOPROPANOL, REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: I 41 2 2 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X+1/2,-Y+1/2,Z+1/2 REMARK 290 3555 -Y,X+1/2,Z+1/4 REMARK 290 4555 Y+1/2,-X,Z+3/4 REMARK 290 5555 -X+1/2,Y,-Z+3/4 REMARK 290 6555 X,-Y+1/2,-Z+1/4 REMARK 290 7555 Y+1/2,X+1/2,-Z+1/2 REMARK 290 8555 -Y,-X,-Z REMARK 290 9555 X+1/2,Y+1/2,Z+1/2 REMARK 290 10555 -X,-Y,Z REMARK 290 11555 -Y+1/2,X,Z+3/4 REMARK 290 12555 Y,-X+1/2,Z+1/4 REMARK 290 13555 -X,Y+1/2,-Z+1/4 REMARK 290 14555 X+1/2,-Y,-Z+3/4 REMARK 290 15555 Y,X,-Z REMARK 290 16555 -Y+1/2,-X+1/2,-Z+1/2 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 36.31500 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 36.31500 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 84.49000 REMARK 290 SMTRY1 3 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 1.000000 0.000000 0.000000 36.31500 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 42.24500 REMARK 290 SMTRY1 4 0.000000 1.000000 0.000000 36.31500 REMARK 290 SMTRY2 4 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 126.73500 REMARK 290 SMTRY1 5 -1.000000 0.000000 0.000000 36.31500 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 5 0.000000 0.000000 -1.000000 126.73500 REMARK 290 SMTRY1 6 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 36.31500 REMARK 290 SMTRY3 6 0.000000 0.000000 -1.000000 42.24500 REMARK 290 SMTRY1 7 0.000000 1.000000 0.000000 36.31500 REMARK 290 SMTRY2 7 1.000000 0.000000 0.000000 36.31500 REMARK 290 SMTRY3 7 0.000000 0.000000 -1.000000 84.49000 REMARK 290 SMTRY1 8 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY2 8 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 8 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 9 1.000000 0.000000 0.000000 36.31500 REMARK 290 SMTRY2 9 0.000000 1.000000 0.000000 36.31500 REMARK 290 SMTRY3 9 0.000000 0.000000 1.000000 84.49000 REMARK 290 SMTRY1 10 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 10 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 10 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 11 0.000000 -1.000000 0.000000 36.31500 REMARK 290 SMTRY2 11 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 11 0.000000 0.000000 1.000000 126.73500 REMARK 290 SMTRY1 12 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY2 12 -1.000000 0.000000 0.000000 36.31500 REMARK 290 SMTRY3 12 0.000000 0.000000 1.000000 42.24500 REMARK 290 SMTRY1 13 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 13 0.000000 1.000000 0.000000 36.31500 REMARK 290 SMTRY3 13 0.000000 0.000000 -1.000000 42.24500 REMARK 290 SMTRY1 14 1.000000 0.000000 0.000000 36.31500 REMARK 290 SMTRY2 14 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 14 0.000000 0.000000 -1.000000 126.73500 REMARK 290 SMTRY1 15 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY2 15 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 15 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 16 0.000000 -1.000000 0.000000 36.31500 REMARK 290 SMTRY2 16 -1.000000 0.000000 0.000000 36.31500 REMARK 290 SMTRY3 16 0.000000 0.000000 -1.000000 84.49000 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,PQS REMARK 350 TOTAL BURIED SURFACE AREA: 3860 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 12520 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -37.0 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 0.00000 REMARK 350 BIOMT2 2 0.000000 -1.000000 0.000000 36.31500 REMARK 350 BIOMT3 2 0.000000 0.000000 -1.000000 42.24500 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 627 LIES ON A SPECIAL POSITION. REMARK 375 HOH A 629 LIES ON A SPECIAL POSITION. 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 GLN A 26 O - C - N ANGL. DEV. = -9.9 DEGREES REMARK 500 ARG A 28 NE - CZ - NH2 ANGL. DEV. = -3.7 DEGREES REMARK 500 ARG A 49 NE - CZ - NH1 ANGL. DEV. = 4.2 DEGREES REMARK 500 ARG A 49 NE - CZ - NH2 ANGL. DEV. = -7.6 DEGREES REMARK 500 MET A 58 CA - CB - CG ANGL. DEV. = 11.7 DEGREES REMARK 500 MET A 58 CG - SD - CE ANGL. DEV. = -18.1 DEGREES REMARK 500 LEU A 62 CB - CA - C ANGL. DEV. = -12.4 DEGREES REMARK 500 LEU A 62 N - CA - CB ANGL. DEV. = 15.2 DEGREES REMARK 500 TYR A 86 CB - CG - CD2 ANGL. DEV. = -5.7 DEGREES REMARK 500 TYR A 86 CB - CG - CD1 ANGL. DEV. = 5.6 DEGREES REMARK 500 LEU A 92 O - C - N ANGL. DEV. = 13.6 DEGREES REMARK 500 ASP A 100 CB - CG - OD1 ANGL. DEV. = 8.2 DEGREES REMARK 500 ALA A 106 N - CA - CB ANGL. DEV. = 12.6 DEGREES REMARK 500 TYR A 113 CB - CG - CD2 ANGL. DEV. = -6.3 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 LEU A 33 18.83 58.17 REMARK 500 ASP A 41 -121.62 51.59 REMARK 500 ALA A 90 7.90 80.69 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: MAIN CHAIN PLANARITY REMARK 500 REMARK 500 THE FOLLOWING RESIDUES HAVE A PSEUDO PLANARITY REMARK 500 TORSION ANGLE, C(I) - CA(I) - N(I+1) - O(I), GREATER REMARK 500 10.0 DEGREES. (M=MODEL NUMBER; RES=RESIDUE NAME; REMARK 500 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; REMARK 500 I=INSERTION CODE). REMARK 500 REMARK 500 M RES CSSEQI ANGLE REMARK 500 LEU A 62 12.42 REMARK 500 REMARK 500 REMARK: NULL DBREF 1BUO A 6 126 UNP Q05516 ZBT16_HUMAN 6 126 SEQRES 1 A 121 MET GLY MET ILE GLN LEU GLN ASN PRO SER HIS PRO THR SEQRES 2 A 121 GLY LEU LEU CYS LYS ALA ASN GLN MET ARG LEU ALA GLY SEQRES 3 A 121 THR LEU CYS ASP VAL VAL ILE MET VAL ASP SER GLN GLU SEQRES 4 A 121 PHE HIS ALA HIS ARG THR VAL LEU ALA CYS THR SER LYS SEQRES 5 A 121 MET PHE GLU ILE LEU PHE HIS ARG ASN SER GLN HIS TYR SEQRES 6 A 121 THR LEU ASP PHE LEU SER PRO LYS THR PHE GLN GLN ILE SEQRES 7 A 121 LEU GLU TYR ALA TYR THR ALA THR LEU GLN ALA LYS ALA SEQRES 8 A 121 GLU ASP LEU ASP ASP LEU LEU TYR ALA ALA GLU ILE LEU SEQRES 9 A 121 GLU ILE GLU TYR LEU GLU GLU GLN CYS LEU LYS MET LEU SEQRES 10 A 121 GLU THR ILE GLN FORMUL 2 HOH *129(H2 O) HELIX 1 1 HIS A 16 ALA A 30 1 15 HELIX 2 2 ARG A 49 THR A 55 1 7 HELIX 3 3 LYS A 57 PHE A 63 7 7 HELIX 4 4 PRO A 77 THR A 89 1 13 HELIX 5 5 ALA A 96 LEU A 109 5 14 HELIX 6 6 GLU A 112 GLN A 126 1 15 SHEET 1 A 3 GLN A 43 ALA A 47 0 SHEET 2 A 3 VAL A 36 VAL A 40 -1 N VAL A 40 O GLN A 43 SHEET 3 A 3 HIS A 69 LEU A 72 1 N TYR A 70 O VAL A 37 CRYST1 72.630 72.630 168.980 90.00 90.00 90.00 I 41 2 2 16 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 0.013768 0.000000 0.000000 0.00000 SCALE2 0.000000 0.013768 0.000000 0.00000 SCALE3 0.000000 0.000000 0.005918 0.00000