PDB Short entry for 1KAO HEADER GTP-BINDING PROTEIN 01-AUG-97 1KAO TITLE CRYSTAL STRUCTURE OF THE SMALL G PROTEIN RAP2A WITH GDP COMPND MOL_ID: 1; COMPND 2 MOLECULE: RAP2A; COMPND 3 CHAIN: A; COMPND 4 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: HOMO SAPIENS; SOURCE 3 ORGANISM_COMMON: HUMAN; SOURCE 4 ORGANISM_TAXID: 9606; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 562 KEYWDS GTP-BINDING PROTEIN, SMALL G PROTEIN, RAP2, GDP, RAS EXPDTA X-RAY DIFFRACTION AUTHOR J.CHERFILS,J.MENETREY,G.LE BRAS REVDAT 4 24-FEB-09 1KAO 1 VERSN REVDAT 3 01-APR-03 1KAO 1 JRNL REVDAT 2 01-DEC-99 1KAO 1 KEYWDS REVDAT 1 24-DEC-97 1KAO 0 JRNL AUTH J.CHERFILS,J.MENETREY,G.LE BRAS,I.JANOUEIX-LEROSEY, JRNL AUTH 2 J.DE GUNZBURG,J.R.GAREL,I.AUZAT JRNL TITL CRYSTAL STRUCTURES OF THE SMALL G PROTEIN RAP2A IN JRNL TITL 2 COMPLEX WITH ITS SUBSTRATE GTP, WITH GDP AND WITH JRNL TITL 3 GTPGAMMAS. JRNL REF EMBO J. V. 16 5582 1997 JRNL REFN ISSN 0261-4189 JRNL PMID 9312017 JRNL DOI 10.1093/EMBOJ/16.18.5582 REMARK 1 REMARK 2 REMARK 2 RESOLUTION. 1.70 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : X-PLOR REMARK 3 AUTHORS : BRUNGER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.70 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : NULL REMARK 3 DATA CUTOFF (SIGMA(F)) : NULL 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 : NULL REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : NULL REMARK 3 FREE R VALUE TEST SET SELECTION : NULL REMARK 3 R VALUE (WORKING SET) : 0.186 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 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 : 1329 REMARK 3 NUCLEIC ACID ATOMS : 28 REMARK 3 HETEROGEN ATOMS : 2 REMARK 3 SOLVENT ATOMS : 70 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 12.82 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 14.77 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) : 0.016 REMARK 3 BOND ANGLES (DEGREES) : 2.60 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 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 1KAO COMPLIES WITH FORMAT V. 3.15, 01-DEC-08 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY BNL. 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 : 8.0 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 : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 15836 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.700 REMARK 200 RESOLUTION RANGE LOW (A) : 30.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 92.8 REMARK 200 DATA REDUNDANCY : 8.000 REMARK 200 R MERGE (I) : 0.07100 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) : 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 <I/SIGMA(I)> FOR SHELL : NULL REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: NULL REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: X-PLOR REMARK 200 STARTING MODEL: RAS-GDP REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 29.60 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 1.92 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PEG 6000 (25%), TRIS 100MM PH 8, REMARK 280 MGCL2 100MM, PH 8.0 REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 1 21 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,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 0.00000 REMARK 290 SMTRY2 2 0.000000 1.000000 0.000000 17.65750 REMARK 290 SMTRY3 2 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 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 MET A 1 CG - SD - CE ANGL. DEV. = 9.9 DEGREES REMARK 500 ARG A 41 NE - CZ - NH1 ANGL. DEV. = 4.4 DEGREES REMARK 500 TYR A 82 CB - CG - CD1 ANGL. DEV. = -5.1 DEGREES REMARK 500 MET A 96 CG - SD - CE ANGL. DEV. = 11.7 DEGREES REMARK 500 ARG A 105 NE - CZ - NH1 ANGL. DEV. = 4.4 DEGREES REMARK 500 ARG A 132 NE - CZ - NH1 ANGL. DEV. = 4.9 DEGREES REMARK 500 ARG A 132 NE - CZ - NH2 ANGL. DEV. = -3.2 DEGREES REMARK 500 TRP A 138 CD1 - CG - CD2 ANGL. DEV. = 6.5 DEGREES REMARK 500 TRP A 138 CE2 - CD2 - CG ANGL. DEV. = -5.5 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 TYR A 32 134.50 -177.80 REMARK 500 GLU A 62 19.99 51.29 REMARK 500 PHE A 64 130.49 -18.78 REMARK 500 LYS A 117 31.30 80.92 REMARK 500 LEU A 120 41.86 -96.46 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: PLANAR GROUPS REMARK 500 REMARK 500 PLANAR GROUPS IN THE FOLLOWING RESIDUES HAVE A TOTAL REMARK 500 RMS DISTANCE OF ALL ATOMS FROM THE BEST-FIT PLANE REMARK 500 BY MORE THAN AN EXPECTED VALUE OF 6*RMSD, WITH AN REMARK 500 RMSD 0.02 ANGSTROMS, OR AT LEAST ONE ATOM HAS REMARK 500 AN RMSD GREATER THAN THIS VALUE REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 M RES CSSEQI RMS TYPE REMARK 500 TYR A 32 0.10 SIDE_CHAIN REMARK 500 ARG A 132 0.08 SIDE_CHAIN REMARK 500 REMARK 500 REMARK: NULL REMARK 525 REMARK 525 SOLVENT REMARK 525 REMARK 525 THE SOLVENT MOLECULES HAVE CHAIN IDENTIFIERS THAT REMARK 525 INDICATE THE POLYMER CHAIN WITH WHICH THEY ARE MOST REMARK 525 CLOSELY ASSOCIATED. THE REMARK LISTS ALL THE SOLVENT REMARK 525 MOLECULES WHICH ARE MORE THAN 5A AWAY FROM THE REMARK 525 NEAREST POLYMER CHAIN (M = MODEL NUMBER; REMARK 525 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE REMARK 525 NUMBER; I=INSERTION CODE): REMARK 525 REMARK 525 M RES CSSEQI REMARK 525 HOH A 205 DISTANCE = 5.33 ANGSTROMS 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 168 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 GDP A 170 O3B REMARK 620 2 SER A 17 OG 92.0 REMARK 620 3 HOH A 171 O 90.3 86.9 REMARK 620 4 HOH A 174 O 175.9 89.4 85.9 REMARK 620 5 HOH A 172 O 87.4 177.1 90.3 91.1 REMARK 620 6 HOH A 173 O 91.1 90.5 177.1 92.7 92.3 REMARK 620 N 1 2 3 4 5 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 MG A 169 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 GLY A 26 O REMARK 620 2 ASP A 38 OD1 165.9 REMARK 620 3 HOH A 227 O 103.9 89.2 REMARK 620 4 HOH A 240 O 97.3 69.1 157.8 REMARK 620 5 HOH A 239 O 105.5 75.5 105.1 74.9 REMARK 620 N 1 2 3 4 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 168 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG A 169 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE GDP A 170 DBREF 1KAO A 1 167 UNP P10114 RAP2A_HUMAN 1 167 SEQRES 1 A 167 MET ARG GLU TYR LYS VAL VAL VAL LEU GLY SER GLY GLY SEQRES 2 A 167 VAL GLY LYS SER ALA LEU THR VAL GLN PHE VAL THR GLY SEQRES 3 A 167 THR PHE ILE GLU LYS TYR ASP PRO THR ILE GLU ASP PHE SEQRES 4 A 167 TYR ARG LYS GLU ILE GLU VAL ASP SER SER PRO SER VAL SEQRES 5 A 167 LEU GLU ILE LEU ASP THR ALA GLY THR GLU GLN PHE ALA SEQRES 6 A 167 SER MET ARG ASP LEU TYR ILE LYS ASN GLY GLN GLY PHE SEQRES 7 A 167 ILE LEU VAL TYR SER LEU VAL ASN GLN GLN SER PHE GLN SEQRES 8 A 167 ASP ILE LYS PRO MET ARG ASP GLN ILE ILE ARG VAL LYS SEQRES 9 A 167 ARG TYR GLU LYS VAL PRO VAL ILE LEU VAL GLY ASN LYS SEQRES 10 A 167 VAL ASP LEU GLU SER GLU ARG GLU VAL SER SER SER GLU SEQRES 11 A 167 GLY ARG ALA LEU ALA GLU GLU TRP GLY CYS PRO PHE MET SEQRES 12 A 167 GLU THR SER ALA LYS SER LYS THR MET VAL ASP GLU LEU SEQRES 13 A 167 PHE ALA GLU ILE VAL ARG GLN MET ASN TYR ALA HET MG A 168 1 HET MG A 169 1 HET GDP A 170 28 HETNAM MG MAGNESIUM ION HETNAM GDP GUANOSINE-5'-DIPHOSPHATE FORMUL 2 MG 2(MG 2+) FORMUL 4 GDP C10 H15 N5 O11 P2 FORMUL 5 HOH *70(H2 O) HELIX 1 1 LYS A 16 THR A 25 1 10 HELIX 2 2 ALA A 65 ASN A 74 1 10 HELIX 3 3 GLN A 87 VAL A 103 1 17 HELIX 4 4 VAL A 118 GLU A 123 5 6 HELIX 5 5 SER A 128 TRP A 138 1 11 HELIX 6 6 LYS A 150 ASN A 165 1 16 SHEET 1 A 6 PRO A 141 THR A 145 0 SHEET 2 A 6 PRO A 110 ASN A 116 1 N LEU A 113 O PRO A 141 SHEET 3 A 6 GLY A 77 SER A 83 1 N PHE A 78 O PRO A 110 SHEET 4 A 6 GLU A 3 LEU A 9 1 N VAL A 7 O GLY A 77 SHEET 5 A 6 SER A 49 ASP A 57 1 N VAL A 52 O TYR A 4 SHEET 6 A 6 ASP A 38 VAL A 46 -1 N VAL A 46 O SER A 49 LINK O3B GDP A 170 MG MG A 168 1555 1555 2.13 LINK MG MG A 168 OG SER A 17 1555 1555 2.01 LINK MG MG A 169 O GLY A 26 1555 2545 2.02 LINK MG MG A 168 O HOH A 171 1555 1555 2.13 LINK MG MG A 168 O HOH A 174 1555 1555 2.14 LINK MG MG A 168 O HOH A 172 1555 1555 2.16 LINK MG MG A 168 O HOH A 173 1555 1555 1.88 LINK MG MG A 169 OD1 ASP A 38 1555 1555 2.48 LINK MG MG A 169 O HOH A 227 1555 1555 1.67 LINK MG MG A 169 O HOH A 240 1555 1555 2.96 LINK MG MG A 169 O HOH A 239 1555 1555 1.67 SITE 1 AC1 6 SER A 17 GDP A 170 HOH A 171 HOH A 172 SITE 2 AC1 6 HOH A 173 HOH A 174 SITE 1 AC2 4 ASP A 38 HOH A 227 HOH A 239 HOH A 240 SITE 1 AC3 21 GLY A 13 VAL A 14 GLY A 15 LYS A 16 SITE 2 AC3 21 SER A 17 ALA A 18 PHE A 28 ILE A 29 SITE 3 AC3 21 GLU A 30 LYS A 31 ASN A 116 LYS A 117 SITE 4 AC3 21 ASP A 119 LEU A 120 SER A 146 ALA A 147 SITE 5 AC3 21 MG A 168 HOH A 171 HOH A 172 HOH A 173 SITE 6 AC3 21 HOH A 179 CRYST1 36.826 35.315 58.356 90.00 106.67 90.00 P 1 21 1 2 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 0.027155 0.000000 0.008131 0.00000 SCALE2 0.000000 0.028317 0.000000 0.00000 SCALE3 0.000000 0.000000 0.017888 0.00000