HEADER ONCOGENE PROTEIN 06-JUN-91 621P TITLE THREE-DIMENSIONAL STRUCTURES OF H-RAS P21 MUTANTS: MOLECULAR BASIS FOR TITLE 2 THEIR INABILITY TO FUNCTION AS SIGNAL SWITCH MOLECULES COMPND MOL_ID: 1; COMPND 2 MOLECULE: H-RAS P21 PROTEIN; COMPND 3 CHAIN: A; COMPND 4 ENGINEERED: YES; COMPND 5 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: HOMO SAPIENS; SOURCE 3 ORGANISM_COMMON: HUMAN; SOURCE 4 ORGANISM_TAXID: 9606 KEYWDS ONCOGENE PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR U.KRENGEL,A.SCHERER,W.KABSCH,A.WITTINGHOFER,E.F.PAI REVDAT 6 13-MAR-24 621P 1 REMARK SEQADV LINK REVDAT 5 29-NOV-17 621P 1 HELIX REVDAT 4 07-MAR-12 621P 1 COMPND SEQADV VERSN REVDAT 3 24-FEB-09 621P 1 VERSN REVDAT 2 01-APR-03 621P 1 JRNL REVDAT 1 31-JAN-94 621P 0 JRNL AUTH U.KRENGEL,I.SCHLICHTING,A.SCHERER,R.SCHUMANN,M.FRECH,J.JOHN, JRNL AUTH 2 W.KABSCH,E.F.PAI,A.WITTINGHOFER JRNL TITL THREE-DIMENSIONAL STRUCTURES OF H-RAS P21 MUTANTS: MOLECULAR JRNL TITL 2 BASIS FOR THEIR INABILITY TO FUNCTION AS SIGNAL SWITCH JRNL TITL 3 MOLECULES. JRNL REF CELL(CAMBRIDGE,MASS.) V. 62 539 1990 JRNL REFN ISSN 0092-8674 JRNL PMID 2199064 JRNL DOI 10.1016/0092-8674(90)90018-A REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH E.F.PAI,U.KRENGEL,G.A.PETSKO,R.S.GOODY,W.KABSCH, REMARK 1 AUTH 2 A.WITTINGHOFER REMARK 1 TITL REFINED CRYSTAL STRUCTURE OF THE TRIPHOSPHATE CONFORMATION REMARK 1 TITL 2 OF H-RAS P21 AT 1.35 ANGSTROMS RESOLUTION: IMPLICATIONS FOR REMARK 1 TITL 3 THE MECHANISM OF GTP HYDROLYSIS REMARK 1 REF EMBO J. V. 9 2351 1990 REMARK 1 REFN ISSN 0261-4189 REMARK 2 REMARK 2 RESOLUTION. 2.40 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) : 2.40 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) : 0.180 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 : 1323 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 33 REMARK 3 SOLVENT ATOMS : 226 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) : 0.017 REMARK 3 BOND ANGLES (DEGREES) : 3.400 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: RESIDUES 61 - 64 (HIS - GLU - GLU - REMARK 3 TYR) ADOPT SEVERAL CONFORMATIONS IN THE CRYSTAL. THE COORDINATES REMARK 3 GIVEN APPROXIMATE ONE OF THESE. THE ELECTRON DENSITY FOR THIS REMARK 3 PART OF THE STRUCTURE IS NOT AS WELL DEFINED AS FOR THE REST OF REMARK 3 THE STRUCTURE. REMARK 4 REMARK 4 621P COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY BNL. REMARK 100 THE DEPOSITION ID IS D_1000179790. 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: X-PLOR REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 38.63 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.00 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: NULL REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 32 2 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -Y,X-Y,Z+2/3 REMARK 290 3555 -X+Y,-X,Z+1/3 REMARK 290 4555 Y,X,-Z REMARK 290 5555 X-Y,-Y,-Z+1/3 REMARK 290 6555 -X,-X+Y,-Z+2/3 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 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 2 0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 107.13333 REMARK 290 SMTRY1 3 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 3 -0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 53.56667 REMARK 290 SMTRY1 4 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 4 0.866025 0.500000 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 53.56667 REMARK 290 SMTRY1 6 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 6 -0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 6 0.000000 0.000000 -1.000000 107.13333 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 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 350 BIOMT1 2 -0.500000 0.866025 0.000000 0.00000 REMARK 350 BIOMT2 2 0.866025 0.500000 0.000000 0.00000 REMARK 350 BIOMT3 2 0.000000 0.000000 -1.000000 0.00000 REMARK 400 REMARK 400 COMPOUND REMARK 400 SECONDARY STRUCTURE ELEMENTS HAVE BEEN ASSIGNED ACCORDING REMARK 400 TO THE PROGRAM DSSP (W.KABSCH AND C.SANDER, 1983, REMARK 400 BIOPOLYMERS 22:2577-2637). 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 ALA A 122 CB REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: COVALENT BOND LENGTHS 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,2(A3,1X,A1,I4,A1,1X,A4,3X),1X,F6.3) 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 RES CSSEQI ATM2 DEVIATION REMARK 500 HIS A 27 NE2 HIS A 27 CD2 -0.068 REMARK 500 REMARK 500 REMARK: NULL 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 TYR A 40 CB - CG - CD1 ANGL. DEV. = -3.8 DEGREES REMARK 500 HIS A 61 CA - CB - CG ANGL. DEV. = 15.2 DEGREES REMARK 500 ARG A 68 NE - CZ - NH1 ANGL. DEV. = 4.3 DEGREES REMARK 500 ARG A 73 NE - CZ - NH2 ANGL. DEV. = -3.3 DEGREES REMARK 500 ARG A 97 NE - CZ - NH1 ANGL. DEV. = 5.7 DEGREES REMARK 500 ARG A 97 NE - CZ - NH2 ANGL. DEV. = -4.0 DEGREES REMARK 500 TYR A 137 CB - CG - CD2 ANGL. DEV. = -4.0 DEGREES REMARK 500 TYR A 137 CB - CG - CD1 ANGL. DEV. = 4.0 DEGREES REMARK 500 TYR A 137 CA - C - N ANGL. DEV. = 16.2 DEGREES REMARK 500 ARG A 161 NE - CZ - NH2 ANGL. DEV. = -4.9 DEGREES REMARK 500 ARG A 164 NE - CZ - NH1 ANGL. DEV. = 4.0 DEGREES REMARK 500 ARG A 164 NE - CZ - NH2 ANGL. DEV. = -3.5 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 ASN A 26 64.32 38.40 REMARK 500 HIS A 27 147.39 -170.07 REMARK 500 ASP A 30 40.26 -104.62 REMARK 500 ASP A 33 73.78 -151.49 REMARK 500 HIS A 61 -63.95 -105.38 REMARK 500 GLU A 62 -173.71 47.19 REMARK 500 TYR A 64 85.28 -10.26 REMARK 500 SER A 65 -117.33 -119.04 REMARK 500 LYS A 117 38.88 75.77 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 168 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 SER A 17 OG REMARK 620 2 THR A 35 OG1 87.6 REMARK 620 3 GNP A 167 O2G 164.9 95.4 REMARK 620 4 GNP A 167 O2B 90.4 171.7 88.6 REMARK 620 5 HOH A 211 O 80.2 80.4 115.0 91.3 REMARK 620 6 HOH A 386 O 84.7 102.9 80.1 84.9 164.4 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 168 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE GNP A 167 DBREF 621P A 1 166 UNP P01112 RASH_HUMAN 1 166 SEQADV 621P HIS A 61 UNP P01112 GLN 61 ENGINEERED MUTATION SEQRES 1 A 166 MET THR GLU TYR LYS LEU VAL VAL VAL GLY ALA GLY GLY SEQRES 2 A 166 VAL GLY LYS SER ALA LEU THR ILE GLN LEU ILE GLN ASN SEQRES 3 A 166 HIS PHE VAL ASP GLU TYR ASP PRO THR ILE GLU ASP SER SEQRES 4 A 166 TYR ARG LYS GLN VAL VAL ILE ASP GLY GLU THR CYS LEU SEQRES 5 A 166 LEU ASP ILE LEU ASP THR ALA GLY HIS GLU GLU TYR SER SEQRES 6 A 166 ALA MET ARG ASP GLN TYR MET ARG THR GLY GLU GLY PHE SEQRES 7 A 166 LEU CYS VAL PHE ALA ILE ASN ASN THR LYS SER PHE GLU SEQRES 8 A 166 ASP ILE HIS GLN TYR ARG GLU GLN ILE LYS ARG VAL LYS SEQRES 9 A 166 ASP SER ASP ASP VAL PRO MET VAL LEU VAL GLY ASN LYS SEQRES 10 A 166 CYS ASP LEU ALA ALA ARG THR VAL GLU SER ARG GLN ALA SEQRES 11 A 166 GLN ASP LEU ALA ARG SER TYR GLY ILE PRO TYR ILE GLU SEQRES 12 A 166 THR SER ALA LYS THR ARG GLN GLY VAL GLU ASP ALA PHE SEQRES 13 A 166 TYR THR LEU VAL ARG GLU ILE ARG GLN HIS HET MG A 168 1 HET GNP A 167 32 HETNAM MG MAGNESIUM ION HETNAM GNP PHOSPHOAMINOPHOSPHONIC ACID-GUANYLATE ESTER FORMUL 2 MG MG 2+ FORMUL 3 GNP C10 H17 N6 O13 P3 FORMUL 4 HOH *226(H2 O) HELIX 1 A1 LYS A 16 GLN A 25 1 10 HELIX 2 A2 ASP A 69 THR A 74 1RES. 66-68 IN 3/10 CONFRMTN 6 HELIX 3 A3 THR A 87 LYS A 104 1BREAK AT ASP 92 18 HELIX 4 A4 SER A 127 SER A 136 1 10 HELIX 5 A5 VAL A 152 GLN A 165 1 14 SHEET 1 S 6 GLU A 37 ILE A 46 0 SHEET 2 S 6 GLU A 49 THR A 58 -1 O LEU A 53 N LYS A 42 SHEET 3 S 6 THR A 2 GLY A 10 1 N LEU A 6 O ASP A 54 SHEET 4 S 6 GLY A 77 ALA A 83 1 N LEU A 79 O VAL A 7 SHEET 5 S 6 MET A 111 ASN A 116 1 N VAL A 114 O CYS A 80 SHEET 6 S 6 TYR A 141 GLU A 143 1 N ILE A 142 O LEU A 113 LINK OG SER A 17 MG MG A 168 1555 1555 2.39 LINK OG1 THR A 35 MG MG A 168 1555 1555 2.43 LINK O2G GNP A 167 MG MG A 168 1555 1555 2.32 LINK O2B GNP A 167 MG MG A 168 1555 1555 2.54 LINK MG MG A 168 O HOH A 211 1555 5675 2.33 LINK MG MG A 168 O HOH A 386 1555 1555 2.49 SITE 1 AC1 5 SER A 17 THR A 35 GNP A 167 HOH A 211 SITE 2 AC1 5 HOH A 386 SITE 1 AC2 27 ALA A 11 GLY A 12 GLY A 13 VAL A 14 SITE 2 AC2 27 GLY A 15 LYS A 16 SER A 17 ALA A 18 SITE 3 AC2 27 PHE A 28 VAL A 29 ASP A 30 GLU A 31 SITE 4 AC2 27 TYR A 32 PRO A 34 THR A 35 GLY A 60 SITE 5 AC2 27 ASN A 116 LYS A 117 ASP A 119 LEU A 120 SITE 6 AC2 27 SER A 145 ALA A 146 LYS A 147 MG A 168 SITE 7 AC2 27 HOH A 211 HOH A 266 HOH A 393 CRYST1 40.400 40.400 160.700 90.00 90.00 120.00 P 32 2 1 6 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 0.024752 0.014291 0.000000 0.00000 SCALE2 0.000000 0.028582 0.000000 0.00000 SCALE3 0.000000 0.000000 0.006223 0.00000