HEADER LUMINESCENT PROTEIN 10-SEP-03 1QYF TITLE CRYSTAL STRUCTURE OF MATURED GREEN FLUORESCENT PROTEIN R96A VARIANT COMPND MOL_ID: 1; COMPND 2 MOLECULE: GREEN-FLUORESCENT PROTEIN; COMPND 3 CHAIN: A; COMPND 4 FRAGMENT: RESIDUES 1-229; COMPND 5 ENGINEERED: YES; COMPND 6 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: AEQUOREA VICTORIA; SOURCE 3 ORGANISM_TAXID: 6100; SOURCE 4 GENE: GFP; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 7 EXPRESSION_SYSTEM_STRAIN: JM109; SOURCE 8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 9 EXPRESSION_SYSTEM_VECTOR: PKEN2 KEYWDS BETA BARREL, CHROMOPHORE, LUMINESCENT PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR D.P.BARONDEAU,C.D.PUTNAM,C.J.KASSMANN,J.A.TAINER,E.D.GETZOFF REVDAT 7 15-NOV-23 1QYF 1 REMARK REVDAT 6 23-AUG-23 1QYF 1 REMARK REVDAT 5 27-OCT-21 1QYF 1 REMARK SEQADV LINK REVDAT 4 19-MAY-09 1QYF 1 SEQADV REVDAT 3 24-FEB-09 1QYF 1 VERSN REVDAT 2 14-OCT-03 1QYF 1 MODRES JRNL REVDAT 1 30-SEP-03 1QYF 0 JRNL AUTH D.P.BARONDEAU,C.D.PUTNAM,C.J.KASSMANN,J.A.TAINER,E.D.GETZOFF JRNL TITL MECHANISM AND ENERGETICS OF GREEN FLUORESCENT PROTEIN JRNL TITL 2 CHROMOPHORE SYNTHESIS REVEALED BY TRAPPED INTERMEDIATE JRNL TITL 3 STRUCTURES. JRNL REF PROC.NATL.ACAD.SCI.USA V. 100 12111 2003 JRNL REFN ISSN 0027-8424 JRNL PMID 14523232 JRNL DOI 10.1073/PNAS.2133463100 REMARK 2 REMARK 2 RESOLUTION. 1.50 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : SHELXL-97 REMARK 3 AUTHORS : G.M.SHELDRICK REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.50 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 40.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 92.4 REMARK 3 CROSS-VALIDATION METHOD : FREE R REMARK 3 FREE R VALUE TEST SET SELECTION : RANDOM REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT (NO CUTOFF). REMARK 3 R VALUE (WORKING + TEST SET, NO CUTOFF) : NULL REMARK 3 R VALUE (WORKING SET, NO CUTOFF) : 0.144 REMARK 3 FREE R VALUE (NO CUTOFF) : 0.214 REMARK 3 FREE R VALUE TEST SET SIZE (%, NO CUTOFF) : 5.300 REMARK 3 FREE R VALUE TEST SET COUNT (NO CUTOFF) : 1734 REMARK 3 TOTAL NUMBER OF REFLECTIONS (NO CUTOFF) : 34756 REMARK 3 REMARK 3 FIT/AGREEMENT OF MODEL FOR DATA WITH F>4SIG(F). REMARK 3 R VALUE (WORKING + TEST SET, F>4SIG(F)) : NULL REMARK 3 R VALUE (WORKING SET, F>4SIG(F)) : 0.129 REMARK 3 FREE R VALUE (F>4SIG(F)) : 0.194 REMARK 3 FREE R VALUE TEST SET SIZE (%, F>4SIG(F)) : 5.200 REMARK 3 FREE R VALUE TEST SET COUNT (F>4SIG(F)) : 1420 REMARK 3 TOTAL NUMBER OF REFLECTIONS (F>4SIG(F)) : 27240 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1790 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 5 REMARK 3 SOLVENT ATOMS : 275 REMARK 3 REMARK 3 MODEL REFINEMENT. REMARK 3 OCCUPANCY SUM OF NON-HYDROGEN ATOMS : 2084.0 REMARK 3 OCCUPANCY SUM OF HYDROGEN ATOMS : 1737.0 REMARK 3 NUMBER OF DISCRETELY DISORDERED RESIDUES : 0 REMARK 3 NUMBER OF LEAST-SQUARES PARAMETERS : 18771 REMARK 3 NUMBER OF RESTRAINTS : 22556 REMARK 3 REMARK 3 RMS DEVIATIONS FROM RESTRAINT TARGET VALUES. REMARK 3 BOND LENGTHS (A) : 0.009 REMARK 3 ANGLE DISTANCES (A) : 0.027 REMARK 3 SIMILAR DISTANCES (NO TARGET VALUES) (A) : 0.008 REMARK 3 DISTANCES FROM RESTRAINT PLANES (A) : 0.028 REMARK 3 ZERO CHIRAL VOLUMES (A**3) : 0.046 REMARK 3 NON-ZERO CHIRAL VOLUMES (A**3) : 0.052 REMARK 3 ANTI-BUMPING DISTANCE RESTRAINTS (A) : 0.025 REMARK 3 RIGID-BOND ADP COMPONENTS (A**2) : 0.003 REMARK 3 SIMILAR ADP COMPONENTS (A**2) : 0.054 REMARK 3 APPROXIMATELY ISOTROPIC ADPS (A**2) : 0.074 REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED: NULL REMARK 3 REMARK 3 STEREOCHEMISTRY TARGET VALUES : ENGH AND HUBER REMARK 3 SPECIAL CASE: NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: ANISOTROPIC REFINEMENT REDUCED FREE R REMARK 3 (NO CUTOFF) BY 0.0196 REMARK 4 REMARK 4 1QYF COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 17-SEP-03. REMARK 100 THE DEPOSITION ID IS D_1000020221. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 27-SEP-99 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 8.0 REMARK 200 NUMBER OF CRYSTALS USED : NULL REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : APS REMARK 200 BEAMLINE : 14-BM-C REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.00 REMARK 200 MONOCHROMATOR : NULL 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 : 34756 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.500 REMARK 200 RESOLUTION RANGE LOW (A) : 40.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : -3.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 92.4 REMARK 200 DATA REDUNDANCY : 4.740 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.05200 REMARK 200 FOR THE DATA SET : 27.4000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.50 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.55 REMARK 200 COMPLETENESS FOR SHELL (%) : 60.7 REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : 0.25300 REMARK 200 FOR SHELL : 3.000 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: 1EMA REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 44.68 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.22 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PEG 4000, MAGNESIUM CHLORIDE, HEPES, REMARK 280 PH 8.0, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 298K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 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 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 25.75750 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 35.51900 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 31.19400 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 35.51900 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 25.75750 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 31.19400 REMARK 290 SMTRY3 4 0.000000 0.000000 -1.000000 0.00000 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 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 0 REMARK 465 ALA A 1 REMARK 465 SER A 2 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 LYS A 79 O - C - N ANGL. DEV. = -11.8 DEGREES REMARK 500 GLN A 80 C - N - CA ANGL. DEV. = 15.9 DEGREES REMARK 500 PHE A 83 CB - CG - CD1 ANGL. DEV. = -4.2 DEGREES REMARK 500 TYR A 106 CB - CG - CD1 ANGL. DEV. = 4.1 DEGREES REMARK 500 TYR A 145 CB - CG - CD1 ANGL. DEV. = -4.4 DEGREES REMARK 500 REMARK 500 REMARK: NULL REMARK 620 REMARK 620 METAL COORDINATION REMARK 620 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 620 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE): REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 MG A 301 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 EDO A 303 O2 REMARK 620 2 HOH A1285 O 90.7 REMARK 620 3 HOH A1286 O 83.3 97.3 REMARK 620 4 HOH A1287 O 94.5 171.2 90.4 REMARK 620 5 HOH A1288 O 94.3 89.0 173.4 83.6 REMARK 620 6 HOH A1289 O 174.0 84.4 93.9 90.8 89.0 REMARK 620 N 1 2 3 4 5 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG A 301 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE EDO A 303 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1QXT RELATED DB: PDB REMARK 900 PRECYCLIZATION INTERMEDIATE CRYSTAL STRUCTURE OF R96A GFP VARIANT REMARK 900 RELATED ID: 1QY3 RELATED DB: PDB REMARK 900 PRECYCLIZATION INTERMEDIATE CRYSTAL STRUCTURE (B) OF R96A GFP REMARK 900 VARIANT REMARK 900 RELATED ID: 1QYO RELATED DB: PDB REMARK 900 RELATED ID: 1QYQ RELATED DB: PDB DBREF 1QYF A 0 227 UNP P42212 GFP_AEQVI 1 229 SEQADV 1QYF ALA A 1 UNP P42212 CLONING ARTIFACT SEQADV 1QYF LEU A 64 UNP P42212 PHE 64 ENGINEERED MUTATION SEQADV 1QYF CRO A 66 UNP P42212 SER 65 CHROMOPHORE SEQADV 1QYF CRO A 66 UNP P42212 TYR 66 CHROMOPHORE SEQADV 1QYF CRO A 66 UNP P42212 GLY 67 CHROMOPHORE SEQADV 1QYF ALA A 96 UNP P42212 ARG 96 ENGINEERED MUTATION SEQADV 1QYF SER A 99 UNP P42212 PHE 99 ENGINEERED MUTATION SEQADV 1QYF THR A 153 UNP P42212 MET 153 ENGINEERED MUTATION SEQADV 1QYF ALA A 163 UNP P42212 VAL 163 ENGINEERED MUTATION SEQRES 1 A 228 MET ALA SER LYS GLY GLU GLU LEU PHE THR GLY VAL VAL SEQRES 2 A 228 PRO ILE LEU VAL GLU LEU ASP GLY ASP VAL ASN GLY HIS SEQRES 3 A 228 LYS PHE SER VAL SER GLY GLU GLY GLU GLY ASP ALA THR SEQRES 4 A 228 TYR GLY LYS LEU THR LEU LYS PHE ILE CYS THR THR GLY SEQRES 5 A 228 LYS LEU PRO VAL PRO TRP PRO THR LEU VAL THR THR LEU SEQRES 6 A 228 CRO VAL GLN CYS PHE SER ARG TYR PRO ASP HIS MET LYS SEQRES 7 A 228 GLN HIS ASP PHE PHE LYS SER ALA MET PRO GLU GLY TYR SEQRES 8 A 228 VAL GLN GLU ALA THR ILE SER PHE LYS ASP ASP GLY ASN SEQRES 9 A 228 TYR LYS THR ARG ALA GLU VAL LYS PHE GLU GLY ASP THR SEQRES 10 A 228 LEU VAL ASN ARG ILE GLU LEU LYS GLY ILE ASP PHE LYS SEQRES 11 A 228 GLU ASP GLY ASN ILE LEU GLY HIS LYS LEU GLU TYR ASN SEQRES 12 A 228 TYR ASN SER HIS ASN VAL TYR ILE THR ALA ASP LYS GLN SEQRES 13 A 228 LYS ASN GLY ILE LYS ALA ASN PHE LYS ILE ARG HIS ASN SEQRES 14 A 228 ILE GLU ASP GLY SER VAL GLN LEU ALA ASP HIS TYR GLN SEQRES 15 A 228 GLN ASN THR PRO ILE GLY ASP GLY PRO VAL LEU LEU PRO SEQRES 16 A 228 ASP ASN HIS TYR LEU SER THR GLN SER ALA LEU SER LYS SEQRES 17 A 228 ASP PRO ASN GLU LYS ARG ASP HIS MET VAL LEU LEU GLU SEQRES 18 A 228 PHE VAL THR ALA ALA GLY ILE MODRES 1QYF CRO A 66 GLY MODRES 1QYF CRO A 66 TYR MODRES 1QYF CRO A 66 GLY HET CRO A 66 22 HET MG A 301 1 HET EDO A 303 4 HETNAM CRO {2-[(1R,2R)-1-AMINO-2-HYDROXYPROPYL]-4-(4- HETNAM 2 CRO HYDROXYBENZYLIDENE)-5-OXO-4,5-DIHYDRO-1H-IMIDAZOL-1- HETNAM 3 CRO YL}ACETIC ACID HETNAM MG MAGNESIUM ION HETNAM EDO 1,2-ETHANEDIOL HETSYN CRO PEPTIDE DERIVED CHROMOPHORE HETSYN EDO ETHYLENE GLYCOL FORMUL 1 CRO C15 H17 N3 O5 FORMUL 2 MG MG 2+ FORMUL 3 EDO C2 H6 O2 FORMUL 4 HOH *275(H2 O) HELIX 1 1 LYS A 3 THR A 9 5 7 HELIX 2 2 ALA A 37 TYR A 39 5 3 HELIX 3 3 PRO A 56 VAL A 61 5 6 HELIX 4 4 VAL A 68 SER A 72 5 5 HELIX 5 5 PRO A 75 HIS A 81 5 7 HELIX 6 6 ASP A 82 ALA A 87 1 6 HELIX 7 7 LYS A 156 ASN A 159 5 4 SHEET 1 A12 VAL A 12 VAL A 22 0 SHEET 2 A12 HIS A 25 ASP A 36 -1 O PHE A 27 N GLY A 20 SHEET 3 A12 LYS A 41 CYS A 48 -1 O LYS A 41 N ASP A 36 SHEET 4 A12 HIS A 217 ALA A 227 -1 O MET A 218 N PHE A 46 SHEET 5 A12 HIS A 199 SER A 208 -1 N SER A 202 O THR A 225 SHEET 6 A12 HIS A 148 ASP A 155 -1 N HIS A 148 O THR A 203 SHEET 7 A12 GLY A 160 ASN A 170 -1 O LYS A 162 N THR A 153 SHEET 8 A12 VAL A 176 PRO A 187 -1 O HIS A 181 N PHE A 165 SHEET 9 A12 TYR A 92 PHE A 100 -1 N GLU A 95 O GLN A 184 SHEET 10 A12 ASN A 105 GLU A 115 -1 O VAL A 112 N TYR A 92 SHEET 11 A12 THR A 118 ILE A 128 -1 O LYS A 126 N LYS A 107 SHEET 12 A12 VAL A 12 VAL A 22 1 N ASP A 21 O GLY A 127 LINK C LEU A 64 N1 CRO A 66 1555 1555 1.34 LINK C3 CRO A 66 N VAL A 68 1555 1555 1.32 LINK MG MG A 301 O2 EDO A 303 1555 1555 1.98 LINK MG MG A 301 O HOH A1285 1555 1555 2.01 LINK MG MG A 301 O HOH A1286 1555 1555 2.11 LINK MG MG A 301 O HOH A1287 1555 1555 2.14 LINK MG MG A 301 O HOH A1288 1555 1555 2.04 LINK MG MG A 301 O HOH A1289 1555 1555 2.05 CISPEP 1 MET A 88 PRO A 89 0 5.71 SITE 1 AC1 6 EDO A 303 HOH A1285 HOH A1286 HOH A1287 SITE 2 AC1 6 HOH A1288 HOH A1289 SITE 1 AC2 10 ASP A 129 ASN A 170 ILE A 171 GLY A 174 SITE 2 AC2 10 SER A 175 MG A 301 HOH A1285 HOH A1286 SITE 3 AC2 10 HOH A1287 HOH A1288 CRYST1 51.515 62.388 71.038 90.00 90.00 90.00 P 21 21 21 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 0.019412 0.000000 0.000000 0.00000 SCALE2 0.000000 0.016029 0.000000 0.00000 SCALE3 0.000000 0.000000 0.014077 0.00000