HEADER STRUCTURAL PROTEIN 20-MAY-03 1PDQ TITLE POLYCOMB CHROMODOMAIN COMPLEXED WITH THE HISTONE H3 TAIL CONTAINING TITLE 2 TRIMETHYLLYSINE 27. COMPND MOL_ID: 1; COMPND 2 MOLECULE: POLYCOMB PROTEIN; COMPND 3 CHAIN: A; COMPND 4 FRAGMENT: RESIDUES 15-77; COMPND 5 ENGINEERED: YES; COMPND 6 MOL_ID: 2; COMPND 7 MOLECULE: HISTONE H3.3; COMPND 8 CHAIN: B; COMPND 9 FRAGMENT: RESIDUES 15-32; COMPND 10 SYNONYM: H3.A, H3.B, H3.3Q; COMPND 11 ENGINEERED: YES; COMPND 12 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: DROSOPHILA MELANOGASTER; SOURCE 3 ORGANISM_COMMON: FRUIT FLY; SOURCE 4 ORGANISM_TAXID: 7227; SOURCE 5 GENE: PC OR CG7618; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 8 EXPRESSION_SYSTEM_STRAIN: BL21(DE3)PLYSS; SOURCE 9 EXPRESSION_SYSTEM_VECTOR_TYPE: PET; SOURCE 10 EXPRESSION_SYSTEM_PLASMID: PET11A; SOURCE 11 MOL_ID: 2; SOURCE 12 SYNTHETIC: YES; SOURCE 13 OTHER_DETAILS: SYNTHETIC PEPTIDE KEYWDS METHYLLYSINE, CHROMODOMAIN, HISTONE H3, POLYCOMB, LYSINE METHYLATION, KEYWDS 2 TRIMETHYLLYSINE, CATION-PI, CHROMO, STRUCTURAL PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR W.FISCHLE,Y.WANG,S.A.JACOBS,Y.KIM,C.D.ALLIS,S.KHORASANIZADEH REVDAT 4 16-AUG-23 1PDQ 1 REMARK REVDAT 3 27-OCT-21 1PDQ 1 SEQADV LINK REVDAT 2 24-FEB-09 1PDQ 1 VERSN REVDAT 1 26-AUG-03 1PDQ 0 JRNL AUTH W.FISCHLE,Y.WANG,S.A.JACOBS,Y.KIM,C.D.ALLIS,S.KHORASANIZADEH JRNL TITL MOLECULAR BASIS FOR THE DISCRIMINATION OF REPRESSIVE JRNL TITL 2 METHYL-LYSINE MARKS IN HISTONE H3 BY POLYCOMB AND HP1 JRNL TITL 3 CHROMODOMAINS JRNL REF GENES DEV. V. 17 1870 2003 JRNL REFN ISSN 0890-9369 JRNL PMID 12897054 JRNL DOI 10.1101/GAD.1110503 REMARK 2 REMARK 2 RESOLUTION. 1.76 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 : ENGH & HUBER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.76 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 27.59 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : NULL REMARK 3 DATA CUTOFF LOW (ABS(F)) : NULL REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 93.6 REMARK 3 NUMBER OF REFLECTIONS : 9494 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) : 0.223 REMARK 3 FREE R VALUE : 0.253 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 10.400 REMARK 3 FREE R VALUE TEST SET COUNT : 985 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : 0.008 REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : 6 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 1.76 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.87 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 79.60 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 1190 REMARK 3 BIN R VALUE (WORKING SET) : 0.2740 REMARK 3 BIN FREE R VALUE : 0.3410 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 10.10 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 134 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : 0.030 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 516 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 0 REMARK 3 SOLVENT ATOMS : 194 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 18.70 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 31.10 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : -2.70000 REMARK 3 B22 (A**2) : -0.59000 REMARK 3 B33 (A**2) : 3.29000 REMARK 3 B12 (A**2) : 0.00000 REMARK 3 B13 (A**2) : 0.00000 REMARK 3 B23 (A**2) : 0.00000 REMARK 3 REMARK 3 ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM LUZZATI PLOT (A) : 0.22 REMARK 3 ESD FROM SIGMAA (A) : 0.18 REMARK 3 LOW RESOLUTION CUTOFF (A) : 5.00 REMARK 3 REMARK 3 CROSS-VALIDATED ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM C-V LUZZATI PLOT (A) : 0.27 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.25 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.006 REMARK 3 BOND ANGLES (DEGREES) : 1.200 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 25.60 REMARK 3 IMPROPER ANGLES (DEGREES) : 0.570 REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : RESTRAINED REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. RMS SIGMA REMARK 3 MAIN-CHAIN BOND (A**2) : 1.480 ; 1.500 REMARK 3 MAIN-CHAIN ANGLE (A**2) : 2.330 ; 2.000 REMARK 3 SIDE-CHAIN BOND (A**2) : 2.230 ; 2.000 REMARK 3 SIDE-CHAIN ANGLE (A**2) : 3.480 ; 2.500 REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED : FLAT MODEL REMARK 3 KSOL : 0.41 REMARK 3 BSOL : 82.09 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 : PROTEIN_REP.PARAM REMARK 3 PARAMETER FILE 2 : TEST2.PARAM REMARK 3 PARAMETER FILE 3 : WATER_REP.PARAM REMARK 3 PARAMETER FILE 4 : NULL REMARK 3 TOPOLOGY FILE 1 : PROTEIN.TOP REMARK 3 TOPOLOGY FILE 2 : NULL REMARK 3 TOPOLOGY FILE 3 : NULL REMARK 3 TOPOLOGY FILE 4 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1PDQ COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 21-MAY-03. REMARK 100 THE DEPOSITION ID IS D_1000019256. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 20-APR-03 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 8.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : APS REMARK 200 BEAMLINE : 19-ID REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.97934 REMARK 200 MONOCHROMATOR : DOUBLE CRYSTAL SI 111 REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : ADSC QUANTUM 4 REMARK 200 INTENSITY-INTEGRATION SOFTWARE : HKL-2000 REMARK 200 DATA SCALING SOFTWARE : CCP4 (TRUNCATE) REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 9494 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.760 REMARK 200 RESOLUTION RANGE LOW (A) : 50.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 2.950 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 93.7 REMARK 200 DATA REDUNDANCY : 4.100 REMARK 200 R MERGE (I) : 0.03000 REMARK 200 R SYM (I) : 0.03300 REMARK 200 FOR THE DATA SET : 32.6000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.76 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.82 REMARK 200 COMPLETENESS FOR SHELL (%) : 74.2 REMARK 200 DATA REDUNDANCY IN SHELL : 2.95 REMARK 200 R MERGE FOR SHELL (I) : 0.17600 REMARK 200 R SYM FOR SHELL (I) : 0.21200 REMARK 200 FOR SHELL : 2.950 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: MOLREP REMARK 200 STARTING MODEL: PDB 1KNA REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 45.83 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.27 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 0.1 M TRIS-HCL, 0.2 M LITHIUM SULFATE, REMARK 280 30 % PEG 4000, PH 8.5, VAPOR DIFFUSION, HANGING DROP, REMARK 280 TEMPERATURE 277K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: I 21 21 21 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X+1/2,-Y,Z+1/2 REMARK 290 3555 -X,Y+1/2,-Z+1/2 REMARK 290 4555 X+1/2,-Y+1/2,-Z REMARK 290 5555 X+1/2,Y+1/2,Z+1/2 REMARK 290 6555 -X,-Y+1/2,Z REMARK 290 7555 -X+1/2,Y,-Z REMARK 290 8555 X,-Y,-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 16.06000 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 40.23000 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 37.90500 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 40.23000 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 16.06000 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 37.90500 REMARK 290 SMTRY3 4 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 5 1.000000 0.000000 0.000000 16.06000 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 37.90500 REMARK 290 SMTRY3 5 0.000000 0.000000 1.000000 40.23000 REMARK 290 SMTRY1 6 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 37.90500 REMARK 290 SMTRY3 6 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 7 -1.000000 0.000000 0.000000 16.06000 REMARK 290 SMTRY2 7 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 7 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 8 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 8 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 8 0.000000 0.000000 -1.000000 40.23000 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 REMARK 350 TOTAL BURIED SURFACE AREA: 1450 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 4230 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -6.0 KCAL/MOL REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, 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 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 240 LIES ON A SPECIAL POSITION. REMARK 375 HOH A 241 LIES ON A SPECIAL POSITION. REMARK 375 HOH A 248 LIES ON A SPECIAL POSITION. 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 MET A 6 REMARK 465 LYS A 7 REMARK 465 LYS A 8 REMARK 465 HIS A 9 REMARK 465 HIS A 10 REMARK 465 HIS A 11 REMARK 465 HIS A 12 REMARK 465 HIS A 13 REMARK 465 HIS A 14 REMARK 465 ASP A 15 REMARK 465 ASN A 16 REMARK 465 ALA A 17 REMARK 465 THR A 18 REMARK 465 ASP A 19 REMARK 465 ASP A 20 REMARK 465 PRO A 21 REMARK 465 VAL A 22 REMARK 465 GLN A 74 REMARK 465 THR A 75 REMARK 465 ASN A 76 REMARK 465 LYS A 77 REMARK 465 ALA B 15 REMARK 465 PRO B 16 REMARK 465 ARG B 17 REMARK 465 LYS B 18 REMARK 465 GLN B 19 REMARK 465 ALA B 29 REMARK 465 PRO B 30 REMARK 465 SER B 31 REMARK 465 THR B 32 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 DISTANCE REMARK 500 OH TYR A 72 O HOH A 219 1.77 REMARK 500 REMARK 500 REMARK: NULL 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 201 O HOH A 201 8565 1.36 REMARK 500 O HOH A 243 O HOH A 243 7456 1.61 REMARK 500 REMARK 500 REMARK: NULL REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1KNA RELATED DB: PDB REMARK 900 RELATED ID: 1KNE RELATED DB: PDB REMARK 900 RELATED ID: 1GUW RELATED DB: PDB DBREF 1PDQ A 15 77 UNP P26017 PC_DROME 15 77 DBREF 1PDQ B 15 32 UNP P06351 H33_HUMAN 15 32 SEQADV 1PDQ M3L B 27 UNP P06351 LYS 27 ENGINEERED MUTATION SEQRES 1 A 72 MET LYS LYS HIS HIS HIS HIS HIS HIS ASP ASN ALA THR SEQRES 2 A 72 ASP ASP PRO VAL ASP LEU VAL TYR ALA ALA GLU LYS ILE SEQRES 3 A 72 ILE GLN LYS ARG VAL LYS LYS GLY VAL VAL GLU TYR ARG SEQRES 4 A 72 VAL LYS TRP LYS GLY TRP ASN GLN ARG TYR ASN THR TRP SEQRES 5 A 72 GLU PRO GLU VAL ASN ILE LEU ASP ARG ARG LEU ILE ASP SEQRES 6 A 72 ILE TYR GLU GLN THR ASN LYS SEQRES 1 B 18 ALA PRO ARG LYS GLN LEU ALA THR LYS ALA ALA ARG M3L SEQRES 2 B 18 SER ALA PRO SER THR MODRES 1PDQ M3L B 27 LYS N-TRIMETHYLLYSINE HET M3L B 27 12 HETNAM M3L N-TRIMETHYLLYSINE FORMUL 2 M3L C9 H21 N2 O2 1+ FORMUL 3 HOH *194(H2 O) HELIX 1 1 ASN A 51 ASN A 55 5 5 HELIX 2 2 VAL A 61 ILE A 63 5 3 HELIX 3 3 ARG A 66 GLU A 73 1 8 SHEET 1 A 4 THR A 56 PRO A 59 0 SHEET 2 A 4 VAL A 40 TRP A 47 -1 N VAL A 45 O THR A 56 SHEET 3 A 4 LEU A 24 LYS A 37 -1 N LYS A 30 O LYS A 46 SHEET 4 A 4 LYS B 23 M3L B 27 -1 O LYS B 23 N ALA A 28 LINK C ARG B 26 N M3L B 27 1555 1555 1.33 LINK C M3L B 27 N SER B 28 1555 1555 1.33 CRYST1 32.120 75.810 80.460 90.00 90.00 90.00 I 21 21 21 8 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 0.031133 0.000000 0.000000 0.00000 SCALE2 0.000000 0.013191 0.000000 0.00000 SCALE3 0.000000 0.000000 0.012429 0.00000