HEADER IMMUNE SYSTEM 21-AUG-02 1MHX TITLE CRYSTAL STRUCTURES OF THE REDESIGNED PROTEIN G VARIANT NUG1 COMPND MOL_ID: 1; COMPND 2 MOLECULE: IMMUNOGLOBULIN-BINDING PROTEIN G; COMPND 3 CHAIN: A; COMPND 4 FRAGMENT: REDESIGNED B1 DOMAIN; COMPND 5 ENGINEERED: YES; COMPND 6 MUTATION: YES; COMPND 7 OTHER_DETAILS: REDESIGNED FIRST BETA-HAIRPIN, VARIANT NUG1 SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: FINEGOLDIA MAGNA; SOURCE 3 ORGANISM_TAXID: 334413; SOURCE 4 STRAIN: ATCC 29328; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 562 KEYWDS ALPHA-BETA PROTEIN, REDESIGNED FIRST BETA-HAIRPIN, IMMUNE SYSTEM EXPDTA X-RAY DIFFRACTION AUTHOR S.NAULI,B.KUHLMAN,I.LE TRONG,R.E.STENKAMP,D.C.TELLER,D.BAKER REVDAT 6 14-FEB-24 1MHX 1 REMARK REVDAT 5 27-OCT-21 1MHX 1 SEQADV REVDAT 4 13-JUL-11 1MHX 1 VERSN REVDAT 3 24-FEB-09 1MHX 1 VERSN REVDAT 2 11-DEC-02 1MHX 1 JRNL REVDAT 1 18-SEP-02 1MHX 0 JRNL AUTH S.NAULI,B.KUHLMAN,I.LE TRONG,R.E.STENKAMP,D.C.TELLER,D.BAKER JRNL TITL CRYSTAL STRUCTURES AND INCREASED STABILIZATION OF THE JRNL TITL 2 PROTEIN G VARIANTS WITH SWITCHED FOLDING PATHWAYS NUG1 AND JRNL TITL 3 NUG2 JRNL REF PROTEIN SCI. V. 11 2924 2002 JRNL REFN ISSN 0961-8368 JRNL PMID 12441390 JRNL DOI 10.1110/PS.0216902 REMARK 2 REMARK 2 RESOLUTION. 1.80 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CNS 1.0 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 : NULL REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.80 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 22.30 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) (%) : NULL REMARK 3 NUMBER OF REFLECTIONS : 5900 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : NULL REMARK 3 FREE R VALUE TEST SET SELECTION : RANDOM REMARK 3 R VALUE (WORKING SET) : 0.212 REMARK 3 FREE R VALUE : 0.225 REMARK 3 FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 FREE R VALUE TEST SET COUNT : 267 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 : 504 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 0 REMARK 3 SOLVENT ATOMS : 87 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) : 0.006 REMARK 3 BOND ANGLES (DEGREES) : 1.300 REMARK 3 DIHEDRAL ANGLES (DEGREES) : NULL REMARK 3 IMPROPER ANGLES (DEGREES) : NULL 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 BULK SOLVENT MODELING. REMARK 3 METHOD USED : NULL REMARK 3 KSOL : NULL REMARK 3 BSOL : 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 : NULL REMARK 3 TOPOLOGY FILE 1 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1MHX COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 22-AUG-02. REMARK 100 THE DEPOSITION ID IS D_1000016923. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 20-APR-01 REMARK 200 TEMPERATURE (KELVIN) : 298 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 : BL9-1 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.0 REMARK 200 MONOCHROMATOR : GRAPHITE REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : ADSC QUANTUM 4 REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 6273 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.800 REMARK 200 RESOLUTION RANGE LOW (A) : 22.300 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 2.200 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 95.4 REMARK 200 DATA REDUNDANCY : NULL REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : NULL REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.80 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.86 REMARK 200 COMPLETENESS FOR SHELL (%) : 92.5 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 <I/SIGMA(I)> FOR SHELL : NULL REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: AMORE REMARK 200 STARTING MODEL: PDB ENTRY 1PGA REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 42.53 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.14 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: N-PROPANOL, SODIUM FORMATE, TRIS-HCL, REMARK 280 PH 7.5, VAPOR DIFFUSION, SITTING DROP, TEMPERATURE 295K 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 24.72900 REMARK 290 SMTRY2 9 0.000000 1.000000 0.000000 24.72900 REMARK 290 SMTRY3 9 0.000000 0.000000 1.000000 51.51000 REMARK 290 SMTRY1 10 -1.000000 0.000000 0.000000 24.72900 REMARK 290 SMTRY2 10 0.000000 -1.000000 0.000000 24.72900 REMARK 290 SMTRY3 10 0.000000 0.000000 1.000000 51.51000 REMARK 290 SMTRY1 11 0.000000 -1.000000 0.000000 24.72900 REMARK 290 SMTRY2 11 1.000000 0.000000 0.000000 24.72900 REMARK 290 SMTRY3 11 0.000000 0.000000 1.000000 51.51000 REMARK 290 SMTRY1 12 0.000000 1.000000 0.000000 24.72900 REMARK 290 SMTRY2 12 -1.000000 0.000000 0.000000 24.72900 REMARK 290 SMTRY3 12 0.000000 0.000000 1.000000 51.51000 REMARK 290 SMTRY1 13 -1.000000 0.000000 0.000000 24.72900 REMARK 290 SMTRY2 13 0.000000 1.000000 0.000000 24.72900 REMARK 290 SMTRY3 13 0.000000 0.000000 -1.000000 51.51000 REMARK 290 SMTRY1 14 1.000000 0.000000 0.000000 24.72900 REMARK 290 SMTRY2 14 0.000000 -1.000000 0.000000 24.72900 REMARK 290 SMTRY3 14 0.000000 0.000000 -1.000000 51.51000 REMARK 290 SMTRY1 15 0.000000 1.000000 0.000000 24.72900 REMARK 290 SMTRY2 15 1.000000 0.000000 0.000000 24.72900 REMARK 290 SMTRY3 15 0.000000 0.000000 -1.000000 51.51000 REMARK 290 SMTRY1 16 0.000000 -1.000000 0.000000 24.72900 REMARK 290 SMTRY2 16 -1.000000 0.000000 0.000000 24.72900 REMARK 290 SMTRY3 16 0.000000 0.000000 -1.000000 51.51000 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: 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 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 142 LIES ON A SPECIAL POSITION. 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 MET A 1 CG SD CE REMARK 470 LYS A 13 CG CD CE NZ REMARK 470 LYS A 40 CG CD CE NZ REMARK 470 GLU A 65 CG CD OE1 OE2 REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS REMARK 500 REMARK 500 THE FOLLOWING ATOMS THAT ARE RELATED BY CRYSTALLOGRAPHIC REMARK 500 SYMMETRY ARE IN CLOSE CONTACT. AN ATOM LOCATED WITHIN 0.15 REMARK 500 ANGSTROMS OF A SYMMETRY RELATED ATOM IS ASSUMED TO BE ON A REMARK 500 SPECIAL POSITION AND IS, THEREFORE, LISTED IN REMARK 375 REMARK 500 INSTEAD OF REMARK 500. ATOMS WITH NON-BLANK ALTERNATE REMARK 500 LOCATION INDICATORS ARE NOT INCLUDED IN THE CALCULATIONS. REMARK 500 REMARK 500 DISTANCE CUTOFF: REMARK 500 2.2 ANGSTROMS FOR CONTACTS NOT INVOLVING HYDROGEN ATOMS REMARK 500 1.6 ANGSTROMS FOR CONTACTS INVOLVING HYDROGEN ATOMS REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI SSYMOP DISTANCE REMARK 500 O HOH A 66 O HOH A 66 6555 2.00 REMARK 500 REMARK 500 REMARK: NULL REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1MI0 RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF THE REDESIGNED PROTEIN G VARIANT NUG2 REMARK 999 REMARK 999 SEQUENCE REMARK 999 THE SEQUENCE DIFFERS FROM PIR ENTRY A45063 REMARK 999 AT RESIDUES 15-25 (PIR RESIDUES 334-344) REMARK 999 BECAUSE THE AUTHORS REDESIGNED THE FIRST REMARK 999 HAIRPIN. DBREF 1MHX A 9 65 PIR A45063 A45063 328 384 SEQADV 1MHX MET A 1 PIR A45063 EXPRESSION TAG SEQADV 1MHX HIS A 2 PIR A45063 EXPRESSION TAG SEQADV 1MHX HIS A 3 PIR A45063 EXPRESSION TAG SEQADV 1MHX HIS A 4 PIR A45063 EXPRESSION TAG SEQADV 1MHX HIS A 5 PIR A45063 EXPRESSION TAG SEQADV 1MHX HIS A 6 PIR A45063 EXPRESSION TAG SEQADV 1MHX HIS A 7 PIR A45063 EXPRESSION TAG SEQADV 1MHX ALA A 8 PIR A45063 EXPRESSION TAG SEQADV 1MHX PHE A 15 PIR A45063 ILE 334 SEE REMARK 999 SEQADV 1MHX ILE A 16 PIR A45063 LEU 335 SEE REMARK 999 SEQADV 1MHX VAL A 17 PIR A45063 ASN 336 SEE REMARK 999 SEQADV 1MHX ILE A 18 PIR A45063 GLY 337 SEE REMARK 999 SEQADV 1MHX GLY A 19 PIR A45063 LYS 338 SEE REMARK 999 SEQADV 1MHX ASP A 20 PIR A45063 THR 339 SEE REMARK 999 SEQADV 1MHX ARG A 21 PIR A45063 LEU 340 SEE REMARK 999 SEQADV 1MHX VAL A 22 PIR A45063 LYS 341 SEE REMARK 999 SEQADV 1MHX VAL A 23 PIR A45063 GLY 342 SEE REMARK 999 SEQADV 1MHX VAL A 24 PIR A45063 GLU 343 SEE REMARK 999 SEQADV 1MHX VAL A 25 PIR A45063 THR 344 SEE REMARK 999 SEQADV 1MHX ALA A 58 PIR A45063 THR 377 ENGINEERED MUTATION SEQRES 1 A 65 MET HIS HIS HIS HIS HIS HIS ALA MET ASP THR TYR LYS SEQRES 2 A 65 LEU PHE ILE VAL ILE GLY ASP ARG VAL VAL VAL VAL THR SEQRES 3 A 65 THR GLU ALA VAL ASP ALA ALA THR ALA GLU LYS VAL PHE SEQRES 4 A 65 LYS GLN TYR ALA ASN ASP ASN GLY VAL ASP GLY GLU TRP SEQRES 5 A 65 THR TYR ASP ASP ALA ALA LYS THR PHE THR VAL THR GLU FORMUL 2 HOH *87(H2 O) HELIX 1 1 ASP A 31 ASN A 46 1 16 SHEET 1 A 4 ARG A 21 ALA A 29 0 SHEET 2 A 4 ASP A 10 ILE A 18 -1 N ASP A 10 O ALA A 29 SHEET 3 A 4 THR A 60 THR A 64 1 O PHE A 61 N PHE A 15 SHEET 4 A 4 GLU A 51 ASP A 55 -1 N GLU A 51 O THR A 64 CRYST1 49.458 49.458 103.020 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 0.020219 0.000000 0.000000 0.00000 SCALE2 0.000000 0.020219 0.000000 0.00000 SCALE3 0.000000 0.000000 0.009707 0.00000