HEADER MEMBRANE PROTEIN 22-SEP-98 1T1D TITLE CRYSTAL STRUCTURE OF THE TETRAMERIZATION DOMAIN OF THE SHAKER TITLE 2 POTASSIUM CHANNEL COMPND MOL_ID: 1; COMPND 2 MOLECULE: PROTEIN (POTASSIUM CHANNEL KV1.1); COMPND 3 CHAIN: A; COMPND 4 FRAGMENT: TETRAMERIZATION DOMAIN; COMPND 5 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: APLYSIA CALIFORNICA; SOURCE 3 ORGANISM_COMMON: CALIFORNIA SEA HARE; SOURCE 4 ORGANISM_TAXID: 6500; SOURCE 5 STRAIN: BL21 (DE3); SOURCE 6 CELL_LINE: CENTRAL NERVOUS SYSTEM; SOURCE 7 CELLULAR_LOCATION: CYTOPLASM; SOURCE 8 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3); SOURCE 9 EXPRESSION_SYSTEM_TAXID: 469008; SOURCE 10 EXPRESSION_SYSTEM_STRAIN: BL21 (DE3); SOURCE 11 EXPRESSION_SYSTEM_CELLULAR_LOCATION: CYTOPLASM; SOURCE 12 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 13 EXPRESSION_SYSTEM_PLASMID: PET20B KEYWDS POTASSIUM CHANNELS, TETRAMERIZATION DOMAIN, APLYSIA KV1.1, PROTON KEYWDS 2 TRANSPORT, MEMBRANE PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR A.KREUSCH,P.J.PFAFFINGER,C.F.STEVENS,S.CHOE REVDAT 5 23-AUG-23 1T1D 1 REMARK REVDAT 4 24-FEB-09 1T1D 1 VERSN REVDAT 3 10-FEB-04 1T1D 1 HEADER JRNL REMARK MASTER REVDAT 2 29-DEC-99 1T1D 4 HEADER COMPND REMARK JRNL REVDAT 2 2 4 ATOM SOURCE SEQRES REVDAT 1 13-JAN-99 1T1D 0 JRNL AUTH K.A.BIXBY,M.H.NANAO,N.V.SHEN,A.KREUSCH,H.BELLAMY, JRNL AUTH 2 P.J.PFAFFINGER,S.CHOE JRNL TITL ZN2+-BINDING AND MOLECULAR DETERMINANTS OF TETRAMERIZATION JRNL TITL 2 IN VOLTAGE-GATED K+ CHANNELS. JRNL REF NAT.STRUCT.BIOL. V. 6 38 1999 JRNL REFN ISSN 1072-8368 JRNL PMID 9886290 JRNL DOI 10.1038/4911 REMARK 2 REMARK 2 RESOLUTION. 1.51 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) : 1.51 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 19.80 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 92.1 REMARK 3 NUMBER OF REFLECTIONS : 21355 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) : 0.229 REMARK 3 FREE R VALUE : 0.249 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.000 REMARK 3 FREE R VALUE TEST SET COUNT : NULL REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 851 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 0 REMARK 3 SOLVENT ATOMS : 108 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 19.35 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) : 0.011 ; 0.020 REMARK 3 ANGLE DISTANCE (A) : 0.026 ; 0.040 REMARK 3 INTRAPLANAR 1-4 DISTANCE (A) : 0.033 ; 0.050 REMARK 3 H-BOND OR METAL COORDINATION (A) : NULL ; NULL REMARK 3 REMARK 3 PLANE RESTRAINT (A) : 0.019 ; NULL REMARK 3 CHIRAL-CENTER RESTRAINT (A**3) : 0.126 ; 0.150 REMARK 3 REMARK 3 NON-BONDED CONTACT RESTRAINTS. REMARK 3 SINGLE TORSION (A) : 0.177 ; 0.300 REMARK 3 MULTIPLE TORSION (A) : 0.263 ; 0.300 REMARK 3 H-BOND (X...Y) (A) : 0.138 ; 0.300 REMARK 3 H-BOND (X-H...Y) (A) : NULL ; NULL REMARK 3 REMARK 3 CONFORMATIONAL TORSION ANGLE RESTRAINTS. REMARK 3 SPECIFIED (DEGREES) : 0.000 ; 15.000 REMARK 3 PLANAR (DEGREES) : 3.200 ; 7.000 REMARK 3 STAGGERED (DEGREES) : 15.400; 15.000 REMARK 3 TRANSVERSE (DEGREES) : 21.000; 20.000 REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. RMS SIGMA REMARK 3 MAIN-CHAIN BOND (A**2) : 1.354 ; 2.000 REMARK 3 MAIN-CHAIN ANGLE (A**2) : 2.049 ; 3.000 REMARK 3 SIDE-CHAIN BOND (A**2) : 1.761 ; 2.000 REMARK 3 SIDE-CHAIN ANGLE (A**2) : 2.755 ; 3.000 REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1T1D 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_1000008381. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 15-APR-98 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 : SSRL REMARK 200 BEAMLINE : BL7-1 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.08 REMARK 200 MONOCHROMATOR : SI(111) REMARK 200 OPTICS : PT-COATED-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 : 26768 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.510 REMARK 200 RESOLUTION RANGE LOW (A) : 25.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : -3.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 92.0 REMARK 200 DATA REDUNDANCY : 5.900 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.04900 REMARK 200 FOR THE DATA SET : 10.2000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.51 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.54 REMARK 200 COMPLETENESS FOR SHELL (%) : 93.7 REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : 0.16000 REMARK 200 FOR SHELL : 3.500 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: X-PLOR 3.8 REMARK 200 STARTING MODEL: 1A68 REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 55.00 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.70 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 24% ISOPROPANOL, .2M MGCL2, .1 M HEPES REMARK 280 PH 7.5, 1MM DTT REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: I 4 2 2 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,-Y,Z REMARK 290 3555 -Y,X,Z REMARK 290 4555 Y,-X,Z REMARK 290 5555 -X,Y,-Z REMARK 290 6555 X,-Y,-Z REMARK 290 7555 Y,X,-Z REMARK 290 8555 -Y,-X,-Z REMARK 290 9555 X+1/2,Y+1/2,Z+1/2 REMARK 290 10555 -X+1/2,-Y+1/2,Z+1/2 REMARK 290 11555 -Y+1/2,X+1/2,Z+1/2 REMARK 290 12555 Y+1/2,-X+1/2,Z+1/2 REMARK 290 13555 -X+1/2,Y+1/2,-Z+1/2 REMARK 290 14555 X+1/2,-Y+1/2,-Z+1/2 REMARK 290 15555 Y+1/2,X+1/2,-Z+1/2 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 0.00000 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 3 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 4 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY2 4 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 5 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 5 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 6 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 6 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 7 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY2 7 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 7 0.000000 0.000000 -1.000000 0.00000 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 29.85500 REMARK 290 SMTRY2 9 0.000000 1.000000 0.000000 29.85500 REMARK 290 SMTRY3 9 0.000000 0.000000 1.000000 73.43000 REMARK 290 SMTRY1 10 -1.000000 0.000000 0.000000 29.85500 REMARK 290 SMTRY2 10 0.000000 -1.000000 0.000000 29.85500 REMARK 290 SMTRY3 10 0.000000 0.000000 1.000000 73.43000 REMARK 290 SMTRY1 11 0.000000 -1.000000 0.000000 29.85500 REMARK 290 SMTRY2 11 1.000000 0.000000 0.000000 29.85500 REMARK 290 SMTRY3 11 0.000000 0.000000 1.000000 73.43000 REMARK 290 SMTRY1 12 0.000000 1.000000 0.000000 29.85500 REMARK 290 SMTRY2 12 -1.000000 0.000000 0.000000 29.85500 REMARK 290 SMTRY3 12 0.000000 0.000000 1.000000 73.43000 REMARK 290 SMTRY1 13 -1.000000 0.000000 0.000000 29.85500 REMARK 290 SMTRY2 13 0.000000 1.000000 0.000000 29.85500 REMARK 290 SMTRY3 13 0.000000 0.000000 -1.000000 73.43000 REMARK 290 SMTRY1 14 1.000000 0.000000 0.000000 29.85500 REMARK 290 SMTRY2 14 0.000000 -1.000000 0.000000 29.85500 REMARK 290 SMTRY3 14 0.000000 0.000000 -1.000000 73.43000 REMARK 290 SMTRY1 15 0.000000 1.000000 0.000000 29.85500 REMARK 290 SMTRY2 15 1.000000 0.000000 0.000000 29.85500 REMARK 290 SMTRY3 15 0.000000 0.000000 -1.000000 73.43000 REMARK 290 SMTRY1 16 0.000000 -1.000000 0.000000 29.85500 REMARK 290 SMTRY2 16 -1.000000 0.000000 0.000000 29.85500 REMARK 290 SMTRY3 16 0.000000 0.000000 -1.000000 73.43000 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 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 59.71000 REMARK 350 BIOMT2 2 0.000000 -1.000000 0.000000 59.71000 REMARK 350 BIOMT3 2 0.000000 0.000000 1.000000 0.00000 REMARK 350 BIOMT1 3 0.000000 -1.000000 0.000000 59.71000 REMARK 350 BIOMT2 3 1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT3 3 0.000000 0.000000 1.000000 0.00000 REMARK 350 BIOMT1 4 0.000000 1.000000 0.000000 0.00000 REMARK 350 BIOMT2 4 -1.000000 0.000000 0.000000 59.71000 REMARK 350 BIOMT3 4 0.000000 0.000000 1.000000 0.00000 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 ASN A 154 CG OD1 ND2 REMARK 470 GLU A 161 CG CD OE1 OE2 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 ARG A 76 NE - CZ - NH2 ANGL. DEV. = 3.9 DEGREES REMARK 500 ARG A 106 NE - CZ - NH1 ANGL. DEV. = 4.4 DEGREES REMARK 500 ASP A 112 CB - CG - OD1 ANGL. DEV. = 7.3 DEGREES REMARK 500 ARG A 115 NH1 - CZ - NH2 ANGL. DEV. = -6.7 DEGREES REMARK 500 ARG A 115 NE - CZ - NH1 ANGL. DEV. = 3.2 DEGREES REMARK 500 ARG A 115 NE - CZ - NH2 ANGL. DEV. = 3.4 DEGREES REMARK 500 ARG A 133 NE - CZ - NH1 ANGL. DEV. = 5.4 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 ASP A 89 42.49 -96.05 REMARK 500 REMARK 500 REMARK: NULL DBREF 1T1D A 66 165 UNP Q16968 Q16968_APLCA 66 165 SEQRES 1 A 100 GLU ARG VAL VAL ILE ASN VAL SER GLY LEU ARG PHE GLU SEQRES 2 A 100 THR GLN LEU LYS THR LEU ASN GLN PHE PRO ASP THR LEU SEQRES 3 A 100 LEU GLY ASN PRO GLN LYS ARG ASN ARG TYR TYR ASP PRO SEQRES 4 A 100 LEU ARG ASN GLU TYR PHE PHE ASP ARG ASN ARG PRO SER SEQRES 5 A 100 PHE ASP ALA ILE LEU TYR PHE TYR GLN SER GLY GLY ARG SEQRES 6 A 100 LEU ARG ARG PRO VAL ASN VAL PRO LEU ASP VAL PHE SER SEQRES 7 A 100 GLU GLU ILE LYS PHE TYR GLU LEU GLY GLU ASN ALA PHE SEQRES 8 A 100 GLU ARG TYR ARG GLU ASP GLU GLY PHE FORMUL 2 HOH *108(H2 O) HELIX 1 1 LEU A 81 ASN A 85 1 5 HELIX 2 2 PRO A 95 TYR A 101 1 7 HELIX 3 3 PHE A 118 GLN A 126 1 9 HELIX 4 4 LEU A 139 TYR A 149 1 11 HELIX 5 5 GLU A 153 GLU A 163 1 11 SHEET 1 A 3 LEU A 75 GLN A 80 0 SHEET 2 A 3 ARG A 67 VAL A 72 -1 N VAL A 72 O LEU A 75 SHEET 3 A 3 TYR A 109 PHE A 111 1 N TYR A 109 O ASN A 71 CRYST1 59.710 59.710 146.860 90.00 90.00 90.00 I 4 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 0.016748 0.000000 0.000000 0.00000 SCALE2 0.000000 0.016748 0.000000 0.00000 SCALE3 0.000000 0.000000 0.006809 0.00000