HEADER HYDROLASE(O-GLYCOSYL) 05-JAN-93 116L OBSLTE 31-JUL-94 116L 216L TITLE STRUCTURAL BASIS OF ALPHA-HELIX PROPENSITY AT TWO SITES IN TITLE 2 T4 LYSOZYME COMPND MOL_ID: 1; COMPND 2 MOLECULE:; COMPND 3 CHAIN: A, B, C, D; COMPND 4 ENGINEERED: YES SOURCE MOL_ID: 1 KEYWDS HYDROLASE(O-GLYCOSYL) EXPDTA X-RAY DIFFRACTION AUTHOR M.BLABER,B.W.MATTHEWS REVDAT 2 31-JUL-94 116L 3 OBSLTE REVDAT 1 31-OCT-93 116L 0 JRNL AUTH M.BLABER,X.-J.ZHANG,B.W.MATTHEWS JRNL TITL STRUCTURAL BASIS OF ALPHA-HELIX PROPENSITY AT TWO JRNL TITL 2 SITES IN T4 LYSOZYME JRNL REF SCIENCE V. 260 1637 1993 JRNL REFN ASTM SCIEAS US ISSN 0036-8075 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH M.MATSUMURA,B.W.MATTHEWS REMARK 1 TITL CONTROL OF ENZYME ACTIVITY BY AN ENGINEERED REMARK 1 TITL 2 DISULFIDE BOND REMARK 1 REF SCIENCE V. 243 792 1989 REMARK 1 REFN ASTM SCIEAS US ISSN 0036-8075 REMARK 1 REFERENCE 2 REMARK 1 AUTH L.H.WEAVER,B.W.MATTHEWS REMARK 1 TITL STRUCTURE OF BACTERIOPHAGE T4 LYSOZYME REFINED AT REMARK 1 TITL 2 1.7 ANGSTROMS RESOLUTION REMARK 1 REF J.MOL.BIOL. V. 193 189 1987 REMARK 1 REFN ASTM JMOBAK UK ISSN 0022-2836 REMARK 2 REMARK 2 RESOLUTION. 2.05 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : TNT 116L REMARK 3 AUTHORS : TRONRUD,TEN EYCK,MATTHEWS REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.05 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : NULL REMARK 3 DATA CUTOFF (SIGMA(F)) : NULL REMARK 3 COMPLETENESS FOR RANGE (%) : NULL REMARK 3 NUMBER OF REFLECTIONS : NULL REMARK 3 REMARK 3 USING DATA ABOVE SIGMA CUTOFF. REMARK 3 CROSS-VALIDATION METHOD :NULL REMARK 3 FREE R VALUE TEST SET SELECTION :NULL REMARK 3 R VALUE (WORKING + TEST SET) :0.172 REMARK 3 R VALUE (WORKING SET) :NULL REMARK 3 FREE R VALUE :NULL REMARK 3 FREE R VALUE TEST SET SIZE (%) :NULL REMARK 3 FREE R VALUE TEST SET COUNT :NULL REMARK 3 REMARK 3 USING ALL DATA, NO SIGMA CUTOFF. REMARK 3 R VALUE (WORKING + TEST SET, NO CUTOFF) : NULL REMARK 3 R VALUE (WORKING SET, NO CUTOFF) : NULL REMARK 3 FREE R VALUE (NO CUTOFF) : NULL REMARK 3 FREE R VALUE TEST SET SIZE (%, NO CUTOFF) : NULL REMARK 3 FREE R VALUE TEST SET COUNT (NO CUTOFF) : NULL REMARK 3 TOTAL NUMBER OF REFLECTIONS (NO CUTOFF) : NULL REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 5234 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 0 REMARK 3 SOLVENT ATOMS : 221 REMARK 3 REMARK 3 WILSON B VALUE (FROM FCALC, A**2) : NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. RMS WEIGHT COUNT REMARK 3 BOND LENGTHS (A) : 0.014 ; NULL ; NULL REMARK 3 BOND ANGLES (DEGREES) : 2.100 ; NULL ; NULL REMARK 3 TORSION ANGLES (DEGREES) : NULL ; NULL ; NULL REMARK 3 PSEUDOROTATION ANGLES (DEGREES) : NULL ; NULL ; NULL REMARK 3 TRIGONAL CARBON PLANES (A) : NULL ; NULL ; NULL REMARK 3 GENERAL PLANES (A) : NULL ; NULL ; NULL REMARK 3 ISOTROPIC THERMAL FACTORS (A**2) : NULL ; NULL ; NULL REMARK 3 NON-BONDED CONTACTS (A) : NULL ; NULL ; NULL REMARK 3 REMARK 3 INCORRECT CHIRAL-CENTERS (COUNT) : NULL REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED : NULL REMARK 3 KSOL : NULL REMARK 3 BSOL : NULL REMARK 3 REMARK 3 RESTRAINT LIBRARIES. REMARK 3 STEREOCHEMISTRY : NULL REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 116L COMPLIES WITH FORMAT V. 2.3, 09-JULY-1998 REMARK 5 REMARK 5 116L THE ORTHOGONAL X,Y,Z AXES OF THIS COORDINATE SET ARE REMARK 5 116L ALIGNED IN THE A*,B,C CRYSTALLOGRAPHIC DIRECTIONS. 116L REMARK 6 REMARK 6 116L RESIDUES 162 - 164 IN WILD-TYPE AND ALL MUTANT REMARK 6 LYSOZYMES 116L ARE EXTREMELY MOBILE. THUS THE COORDINATES REMARK 6 FOR THESE 116L RESIDUES ARE VERY UNRELIABLE. THIS ENTRY REMARK 6 DOES NOT INCLUDE 116L RESIDUES 163 AND 164. 116L REMARK 7 REMARK 7 116L THERE ARE SEVERAL SUBTLE ASPECTS OF THE SECONDARY REMARK 7 STRUCTURE 116L OF THIS MOLECULE WHICH CANNOT CONVENIENTLY REMARK 7 BE REPRESENTED 116L IN THE HELIX AND SHEET RECORDS BELOW. REMARK 7 THESE ASPECTS 116L INFLUENCE THE REPRESENTATION OF HELIX 6 REMARK 7 AND STRAND 3 OF 116L SHEET *S1*. THE PAPER J.MOL.BIOL., V. REMARK 7 118, P. 81, 1978 116L SHOULD BE CONSULTED FOR THESE REMARK 7 SUBTLETIES. 116L REMARK 8 REMARK 8 116L THE MUTANT STRUCTURES ARE VERY SIMILAR TO THE WILD REMARK 8 TYPE 116L STRUCTURE. THE ROOT MEAN SQUARE DEVIATION FOR A REMARK 8 COMPARISON 116L OF MAIN CHAIN ATOMS 1 - 162 WITH THE WILD REMARK 8 TYPE STRUCTURE 116L IS 0.73 ANGSTROMS FOR MOLECULE 'A', REMARK 8 0.95 ANGSTROMS FOR 116L MOLECULE 'B', 0.95 ANGSTROMS FOR REMARK 8 MOLECULE 'C' AND 0.73 116L ANGSTROMS FOR MOLECULE 'D'. THE REMARK 8 RELATIVE ORIENTATIONS OF 116L THE N-TERMINAL AND C-TERMINAL REMARK 8 DOMAINS ARE APPROXIMATELY 116L 7.3 DEGREES MORE OPEN THAN REMARK 8 THE WILD TYPE STRUCTURE FOR 116L MOLECULE 'A', 9.0 DEGREES REMARK 8 MORE OPEN THAN THE WILD TYPE 116L STRUCTURE FOR MOLECULE ' REMARK 8 B', 8.9 DEGREES MORE OPEN THAN THE 116L WILD TYPE STRUCTURE REMARK 8 FOR MOLECULE 'C', AND 7.4 DEGREES MORE 116L OPEN THAN THE REMARK 8 WILD TYPE STRUCTURE FOR MOLECULE 'D'. 116L REMARK 9 REMARK 9 116L CORRECTION. THIS ENTRY IS OBSOLETE. 31-JUL-94. 116L REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : NULL REMARK 200 TEMPERATURE (KELVIN) : NULL REMARK 200 PH : NULL REMARK 200 NUMBER OF CRYSTALS USED : NULL REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : NULL REMARK 200 RADIATION SOURCE : NULL REMARK 200 BEAMLINE : NULL REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : NULL REMARK 200 WAVELENGTH OR RANGE (A) : NULL REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : NULL REMARK 200 DETECTOR MANUFACTURER : NULL REMARK 200 INTENSITY-INTEGRATION SOFTWARE : NULL REMARK 200 DATA SCALING SOFTWARE : NULL REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : NULL REMARK 200 RESOLUTION RANGE HIGH (A) : NULL REMARK 200 RESOLUTION RANGE LOW (A) : NULL REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : NULL REMARK 200 DATA REDUNDANCY : NULL REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : NULL REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : NULL REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : NULL REMARK 200 COMPLETENESS FOR SHELL (%) : NULL REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : NULL REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: NULL REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: NULL REMARK 200 SOFTWARE USED: NULL REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 50.02 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.46 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: NULL REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,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 REMARK 290 REMARK: NULL REMARK 300 REMARK 300 BIOMOLECULE: 1 REMARK 300 THIS ENTRY CONTAINS THE CRYSTALLOGRAPHIC ASYMMETRIC UNIT REMARK 300 WHICH CONSISTS OF 4 CHAIN(S). SEE REMARK 350 FOR REMARK 300 INFORMATION ON GENERATING THE BIOLOGICAL MOLECULE(S). REMARK 350 REMARK 350 GENERATING THE BIOMOLECULE 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 APPLY THE FOLLOWING TO CHAINS: A, B, C, D 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 ASN A 163 REMARK 465 LEU A 164 REMARK 465 ASN D 163 REMARK 465 LEU D 164 REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS IN SAME ASYMMETRIC UNIT REMARK 500 REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT. REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI REMARK 500 O HOH 251 O HOH 369 2.13 SEQRES 1 A 164 MET ASN ILE PHE GLU MET LEU ARG ILE ASP GLU GLY LEU SEQRES 2 A 164 ARG LEU LYS ILE TYR LYS ASP THR GLU GLY TYR TYR THR SEQRES 3 A 164 ILE GLY ILE GLY HIS LEU LEU THR LYS SER PRO SER LEU SEQRES 4 A 164 ASN ALA ALA LYS TRP GLU LEU ASP LYS ALA ILE GLY ARG SEQRES 5 A 164 ASN THR ASN GLY VAL ILE THR LYS ASP GLU ALA GLU LYS SEQRES 6 A 164 LEU PHE ASN GLN ASP VAL ASP ALA ALA VAL ARG GLY ILE SEQRES 7 A 164 LEU ARG ASN ALA LYS LEU LYS PRO VAL TYR ASP SER LEU SEQRES 8 A 164 ASP ALA VAL ARG ARG ALA ALA LEU ILE ASN MET VAL PHE SEQRES 9 A 164 GLN MET GLY GLU THR GLY VAL ALA GLY PHE THR ASN SER SEQRES 10 A 164 LEU ARG MET LEU GLN GLN LYS ARG TRP ASP GLU ALA ALA SEQRES 11 A 164 VAL ASN LEU ALA LYS SER ARG TRP TYR ASN GLN THR PRO SEQRES 12 A 164 ASN ARG ALA LYS ARG VAL ILE THR THR PHE ARG THR GLY SEQRES 13 A 164 THR TRP ASP ALA TYR LYS ASN LEU SEQRES 1 B 164 MET ASN ILE PHE GLU MET LEU ARG ILE ASP GLU GLY LEU SEQRES 2 B 164 ARG LEU LYS ILE TYR LYS ASP THR GLU GLY TYR TYR THR SEQRES 3 B 164 ILE GLY ILE GLY HIS LEU LEU THR LYS SER PRO SER LEU SEQRES 4 B 164 ASN ALA ALA LYS TRP GLU LEU ASP LYS ALA ILE GLY ARG SEQRES 5 B 164 ASN THR ASN GLY VAL ILE THR LYS ASP GLU ALA GLU LYS SEQRES 6 B 164 LEU PHE ASN GLN ASP VAL ASP ALA ALA VAL ARG GLY ILE SEQRES 7 B 164 LEU ARG ASN ALA LYS LEU LYS PRO VAL TYR ASP SER LEU SEQRES 8 B 164 ASP ALA VAL ARG ARG ALA ALA LEU ILE ASN MET VAL PHE SEQRES 9 B 164 GLN MET GLY GLU THR GLY VAL ALA GLY PHE THR ASN SER SEQRES 10 B 164 LEU ARG MET LEU GLN GLN LYS ARG TRP ASP GLU ALA ALA SEQRES 11 B 164 VAL ASN LEU ALA LYS SER ARG TRP TYR ASN GLN THR PRO SEQRES 12 B 164 ASN ARG ALA LYS ARG VAL ILE THR THR PHE ARG THR GLY SEQRES 13 B 164 THR TRP ASP ALA TYR LYS ASN LEU SEQRES 1 C 164 MET ASN ILE PHE GLU MET LEU ARG ILE ASP GLU GLY LEU SEQRES 2 C 164 ARG LEU LYS ILE TYR LYS ASP THR GLU GLY TYR TYR THR SEQRES 3 C 164 ILE GLY ILE GLY HIS LEU LEU THR LYS SER PRO SER LEU SEQRES 4 C 164 ASN ALA ALA LYS TRP GLU LEU ASP LYS ALA ILE GLY ARG SEQRES 5 C 164 ASN THR ASN GLY VAL ILE THR LYS ASP GLU ALA GLU LYS SEQRES 6 C 164 LEU PHE ASN GLN ASP VAL ASP ALA ALA VAL ARG GLY ILE SEQRES 7 C 164 LEU ARG ASN ALA LYS LEU LYS PRO VAL TYR ASP SER LEU SEQRES 8 C 164 ASP ALA VAL ARG ARG ALA ALA LEU ILE ASN MET VAL PHE SEQRES 9 C 164 GLN MET GLY GLU THR GLY VAL ALA GLY PHE THR ASN SER SEQRES 10 C 164 LEU ARG MET LEU GLN GLN LYS ARG TRP ASP GLU ALA ALA SEQRES 11 C 164 VAL ASN LEU ALA LYS SER ARG TRP TYR ASN GLN THR PRO SEQRES 12 C 164 ASN ARG ALA LYS ARG VAL ILE THR THR PHE ARG THR GLY SEQRES 13 C 164 THR TRP ASP ALA TYR LYS ASN LEU SEQRES 1 D 164 MET ASN ILE PHE GLU MET LEU ARG ILE ASP GLU GLY LEU SEQRES 2 D 164 ARG LEU LYS ILE TYR LYS ASP THR GLU GLY TYR TYR THR SEQRES 3 D 164 ILE GLY ILE GLY HIS LEU LEU THR LYS SER PRO SER LEU SEQRES 4 D 164 ASN ALA ALA LYS TRP GLU LEU ASP LYS ALA ILE GLY ARG SEQRES 5 D 164 ASN THR ASN GLY VAL ILE THR LYS ASP GLU ALA GLU LYS SEQRES 6 D 164 LEU PHE ASN GLN ASP VAL ASP ALA ALA VAL ARG GLY ILE SEQRES 7 D 164 LEU ARG ASN ALA LYS LEU LYS PRO VAL TYR ASP SER LEU SEQRES 8 D 164 ASP ALA VAL ARG ARG ALA ALA LEU ILE ASN MET VAL PHE SEQRES 9 D 164 GLN MET GLY GLU THR GLY VAL ALA GLY PHE THR ASN SER SEQRES 10 D 164 LEU ARG MET LEU GLN GLN LYS ARG TRP ASP GLU ALA ALA SEQRES 11 D 164 VAL ASN LEU ALA LYS SER ARG TRP TYR ASN GLN THR PRO SEQRES 12 D 164 ASN ARG ALA LYS ARG VAL ILE THR THR PHE ARG THR GLY SEQRES 13 D 164 THR TRP ASP ALA TYR LYS ASN LEU FTNOTE 1 RESIDUES 162 - 164 IN WILD-TYPE AND ALL MUTANT LYSOZYMES FTNOTE 1 ARE EXTREMELY MOBILE. THUS THE COORDINATES FOR THESE FTNOTE 1 RESIDUES ARE VERY UNRELIABLE. THIS ENTRY DOES NOT INCLUDE FTNOTE 1 RESIDUES 163 AND 164 FOR CHAINS *A* AND *D*. FORMUL 5 HOH *221(H2 O1) HELIX 1 H1 ILE A 3 GLU A 11 1 9 HELIX 2 H2 LEU A 39 ILE A 50 1 12 HELIX 3 H3 LYS A 60 ARG A 80 1 21 HELIX 4 H4 ALA A 82 SER A 90 1 9 HELIX 5 H5 ALA A 93 MET A 106 1 14 HELIX 6 H6 GLU A 108 GLY A 113 1 6 HELIX 7 H7 THR A 115 GLN A 123 1 9 HELIX 8 H8 TRP A 126 ALA A 134 1 9 HELIX 9 H9 ARG A 137 GLN A 141 1 5 HELIX 10 H10 PRO A 143 THR A 155 1 13 HELIX 11 H11 ILE B 3 GLU B 11 1 9 HELIX 12 H12 LEU B 39 ILE B 50 1 12 HELIX 13 H13 LYS B 60 ARG B 80 1 21 HELIX 14 H14 ALA B 82 SER B 90 1 9 HELIX 15 H15 ALA B 93 MET B 106 1 14 HELIX 16 H16 GLU B 108 GLY B 113 1 6 HELIX 17 H17 THR B 115 GLN B 123 1 9 HELIX 18 H18 TRP B 126 ALA B 134 1 9 HELIX 19 H19 ARG B 137 GLN B 141 1 5 HELIX 20 H20 PRO B 143 THR B 155 1 13 HELIX 21 H21 ILE C 3 GLU C 11 1 9 HELIX 22 H22 LEU C 39 ILE C 50 1 12 HELIX 23 H23 LYS C 60 ARG C 80 1 21 HELIX 24 H24 ALA C 82 SER C 90 1 9 HELIX 25 H25 ALA C 93 MET C 106 1 14 HELIX 26 H26 GLU C 108 GLY C 113 1 6 HELIX 27 H27 THR C 115 GLN C 123 1 9 HELIX 28 H28 TRP C 126 ALA C 134 1 9 HELIX 29 H29 ARG C 137 GLN C 141 1 5 HELIX 30 H30 PRO C 143 THR C 155 1 13 HELIX 31 H31 ILE D 3 GLU D 11 1 9 HELIX 32 H32 LEU D 39 ILE D 50 1 12 HELIX 33 H33 LYS D 60 ARG D 80 1 21 HELIX 34 H34 ALA D 82 SER D 90 1 9 HELIX 35 H35 ALA D 93 MET D 106 1 14 HELIX 36 H36 GLU D 108 GLY D 113 1 6 HELIX 37 H37 THR D 115 GLN D 123 1 9 HELIX 38 H38 TRP D 126 ALA D 134 1 9 HELIX 39 H39 ARG D 137 GLN D 141 1 5 HELIX 40 H40 PRO D 143 THR D 155 1 13 SHEET 1 A 3 ARG A 14 LYS A 19 0 SHEET 2 A 3 TYR A 25 GLY A 28 -1 O THR A 26 N TYR A 18 SHEET 3 A 3 HIS A 31 THR A 34 -1 O LEU A 33 N TYR A 25 SHEET 1 B 3 ARG B 14 LYS B 19 0 SHEET 2 B 3 TYR B 25 GLY B 28 -1 O THR B 26 N TYR B 18 SHEET 3 B 3 HIS B 31 THR B 34 -1 O LEU B 33 N TYR B 25 SHEET 1 C 3 ARG C 14 LYS C 19 0 SHEET 2 C 3 TYR C 25 GLY C 28 -1 O THR C 26 N TYR C 18 SHEET 3 C 3 HIS C 31 THR C 34 -1 O HIS C 31 N ILE C 27 SHEET 1 D 3 ARG D 14 LYS D 19 0 SHEET 2 D 3 TYR D 25 GLY D 28 -1 O THR D 26 N TYR D 18 SHEET 3 D 3 HIS D 31 LEU D 32 -1 O HIS D 31 N ILE D 27 TURN 1 T1 ASP A 20 GLY A 23 TURN 2 T2 THR A 54 VAL A 57 TURN 3 T3 ASP B 20 GLY B 23 TURN 4 T4 THR B 54 VAL B 57 TURN 5 T5 ASP C 20 GLY C 23 TURN 6 T6 THR C 54 VAL C 57 TURN 7 T7 ASP D 20 GLY D 23 TURN 8 T8 THR D 54 VAL D 57 CRYST1 54.400 64.300 59.500 101.10 89.90 115.00 P 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 0.018382 0.008572 0.001823 0.00000 SCALE2 0.000000 0.017160 0.003715 0.00000 SCALE3 0.000000 0.000000 0.017196 0.00000