PDB Short entry for 1XTS HEADER SIGNALING PROTEIN 24-OCT-04 1XTS TITLE STRUCTURE OF SMALL GTPASE HUMAN RHEB IN COMPLEX WITH GTP COMPND MOL_ID: 1; COMPND 2 MOLECULE: GTP-BINDING PROTEIN RHEB; COMPND 3 CHAIN: A; COMPND 4 FRAGMENT: GTPASE DOMAIN; COMPND 5 SYNONYM: RAS HOMOLOG ENRICHED IN BRAIN; COMPND 6 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: HOMO SAPIENS; SOURCE 3 ORGANISM_COMMON: HUMAN; SOURCE 4 ORGANISM_TAXID: 9606; SOURCE 5 GENE: RHEB; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3); SOURCE 7 EXPRESSION_SYSTEM_TAXID: 469008; SOURCE 8 EXPRESSION_SYSTEM_STRAIN: BL21(DE3); SOURCE 9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 10 EXPRESSION_SYSTEM_PLASMID: PET22B(+) KEYWDS BETA SADDLE, P-LOOP, SIGNALING PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR Y.YU,J.DING REVDAT 5 25-OCT-23 1XTS 1 REMARK SEQADV LINK REVDAT 4 11-OCT-17 1XTS 1 REMARK REVDAT 3 24-FEB-09 1XTS 1 VERSN REVDAT 2 03-MAY-05 1XTS 1 JRNL REVDAT 1 08-MAR-05 1XTS 0 JRNL AUTH Y.YU,S.LI,X.XU,Y.LI,K.GUAN,E.ARNOLD,J.DING JRNL TITL STRUCTURAL BASIS FOR THE UNIQUE BIOLOGICAL FUNCTION OF SMALL JRNL TITL 2 GTPASE RHEB JRNL REF J.BIOL.CHEM. V. 280 17093 2005 JRNL REFN ISSN 0021-9258 JRNL PMID 15728574 JRNL DOI 10.1074/JBC.M501253200 REMARK 2 REMARK 2 RESOLUTION. 2.80 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CNS 1.1 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) : 2.80 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 19.80 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : 953345.460 REMARK 3 DATA CUTOFF LOW (ABS(F)) : 0.0000 REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 98.7 REMARK 3 NUMBER OF REFLECTIONS : 6137 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) : 0.231 REMARK 3 FREE R VALUE : 0.277 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.100 REMARK 3 FREE R VALUE TEST SET COUNT : 315 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : 0.016 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) : 2.80 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.97 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 98.00 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 569 REMARK 3 BIN R VALUE (WORKING SET) : 0.3437 REMARK 3 BIN FREE R VALUE : 0.4008 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 3.70 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 44 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 : 1361 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 33 REMARK 3 SOLVENT ATOMS : 30 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 70.40 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 38.30 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) : 0.37 REMARK 3 ESD FROM SIGMAA (A) : 0.51 REMARK 3 LOW RESOLUTION CUTOFF (A) : 6.00 REMARK 3 REMARK 3 CROSS-VALIDATED ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM C-V LUZZATI PLOT (A) : 0.46 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.52 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.009 REMARK 3 BOND ANGLES (DEGREES) : 1.400 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 23.70 REMARK 3 IMPROPER ANGLES (DEGREES) : 0.730 REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : ISOTROPIC 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 : FLAT MODEL REMARK 3 KSOL : 0.41 REMARK 3 BSOL : 52.04 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 : WATER_REP.PARAM REMARK 3 PARAMETER FILE 3 : ION.PARAM REMARK 3 PARAMETER FILE 4 : GTP.PARAM REMARK 3 PARAMETER FILE 5 : NULL REMARK 3 TOPOLOGY FILE 1 : PROTEIN.TOP REMARK 3 TOPOLOGY FILE 2 : WATER.TOP REMARK 3 TOPOLOGY FILE 3 : ION.TOP REMARK 3 TOPOLOGY FILE 4 : GTP.TOP REMARK 3 TOPOLOGY FILE 5 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1XTS COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 26-OCT-04. REMARK 100 THE DEPOSITION ID IS D_1000030760. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 26-MAY-04 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 4.8 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : N REMARK 200 RADIATION SOURCE : ROTATING ANODE REMARK 200 BEAMLINE : NULL REMARK 200 X-RAY GENERATOR MODEL : RIGAKU REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418 REMARK 200 MONOCHROMATOR : NI FILTER REMARK 200 OPTICS : OSMIC MIRRORS REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : RIGAKU RAXIS IV REMARK 200 INTENSITY-INTEGRATION SOFTWARE : R-AXIS REMARK 200 DATA SCALING SOFTWARE : CCP4 (TRUNCATE) REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 6145 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.800 REMARK 200 RESOLUTION RANGE LOW (A) : 19.800 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 98.8 REMARK 200 DATA REDUNDANCY : 3.500 REMARK 200 R MERGE (I) : 0.15600 REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 3.9000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.80 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.90 REMARK 200 COMPLETENESS FOR SHELL (%) : 98.5 REMARK 200 DATA REDUNDANCY IN SHELL : 3.10 REMARK 200 R MERGE FOR SHELL (I) : 0.33300 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 <I/SIGMA(I)> FOR SHELL : 1.600 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: CNS REMARK 200 STARTING MODEL: PDB ENTRIES 1KAO, 1GUA REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 59.20 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 3.00 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: AMMONIUM DIHYDROGENPHOSPHATE, PH 4.8, REMARK 280 VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 277K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: C 2 2 21 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,-Y,Z+1/2 REMARK 290 3555 -X,Y,-Z+1/2 REMARK 290 4555 X,-Y,-Z REMARK 290 5555 X+1/2,Y+1/2,Z REMARK 290 6555 -X+1/2,-Y+1/2,Z+1/2 REMARK 290 7555 -X+1/2,Y+1/2,-Z+1/2 REMARK 290 8555 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 0.00000 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 23.92500 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 23.92500 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 4 0.000000 -1.000000 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 51.20500 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 49.19500 REMARK 290 SMTRY3 5 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 6 -1.000000 0.000000 0.000000 51.20500 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 49.19500 REMARK 290 SMTRY3 6 0.000000 0.000000 1.000000 23.92500 REMARK 290 SMTRY1 7 -1.000000 0.000000 0.000000 51.20500 REMARK 290 SMTRY2 7 0.000000 1.000000 0.000000 49.19500 REMARK 290 SMTRY3 7 0.000000 0.000000 -1.000000 23.92500 REMARK 290 SMTRY1 8 1.000000 0.000000 0.000000 51.20500 REMARK 290 SMTRY2 8 0.000000 -1.000000 0.000000 49.19500 REMARK 290 SMTRY3 8 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 1 REMARK 465 HIS A 173 REMARK 465 HIS A 174 REMARK 465 HIS A 175 REMARK 465 HIS A 176 REMARK 465 HIS A 177 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 OE1 GLN A 30 OE1 GLN A 30 4572 1.71 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 GLU A 40 113.21 167.25 REMARK 500 LEU A 123 69.65 -68.22 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 178 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 SER A 20 OG REMARK 620 2 THR A 38 OG1 69.0 REMARK 620 3 GTP A 179 O3G 110.7 92.0 REMARK 620 4 GTP A 179 O1B 64.4 123.5 76.9 REMARK 620 5 GTP A 179 O3B 115.9 146.6 54.8 51.6 REMARK 620 6 HOH A 180 O 53.2 66.6 58.0 60.6 89.5 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 178 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE GTP A 179 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1XTQ RELATED DB: PDB REMARK 900 THE SAME PROTEIN IN COMPLEX WITH GDP REMARK 900 RELATED ID: 1XTR RELATED DB: PDB REMARK 900 THE SAME PROTEIN IN COMPLEX WITH GPPNHP DBREF 1XTS A 1 169 UNP Q15382 RHEB_HUMAN 1 169 SEQADV 1XTS LEU A 170 UNP Q15382 EXPRESSION TAG SEQADV 1XTS GLU A 171 UNP Q15382 EXPRESSION TAG SEQADV 1XTS HIS A 172 UNP Q15382 EXPRESSION TAG SEQADV 1XTS HIS A 173 UNP Q15382 EXPRESSION TAG SEQADV 1XTS HIS A 174 UNP Q15382 EXPRESSION TAG SEQADV 1XTS HIS A 175 UNP Q15382 EXPRESSION TAG SEQADV 1XTS HIS A 176 UNP Q15382 EXPRESSION TAG SEQADV 1XTS HIS A 177 UNP Q15382 EXPRESSION TAG SEQRES 1 A 177 MET PRO GLN SER LYS SER ARG LYS ILE ALA ILE LEU GLY SEQRES 2 A 177 TYR ARG SER VAL GLY LYS SER SER LEU THR ILE GLN PHE SEQRES 3 A 177 VAL GLU GLY GLN PHE VAL ASP SER TYR ASP PRO THR ILE SEQRES 4 A 177 GLU ASN THR PHE THR LYS LEU ILE THR VAL ASN GLY GLN SEQRES 5 A 177 GLU TYR HIS LEU GLN LEU VAL ASP THR ALA GLY GLN ASP SEQRES 6 A 177 GLU TYR SER ILE PHE PRO GLN THR TYR SER ILE ASP ILE SEQRES 7 A 177 ASN GLY TYR ILE LEU VAL TYR SER VAL THR SER ILE LYS SEQRES 8 A 177 SER PHE GLU VAL ILE LYS VAL ILE HIS GLY LYS LEU LEU SEQRES 9 A 177 ASP MET VAL GLY LYS VAL GLN ILE PRO ILE MET LEU VAL SEQRES 10 A 177 GLY ASN LYS LYS ASP LEU HIS MET GLU ARG VAL ILE SER SEQRES 11 A 177 TYR GLU GLU GLY LYS ALA LEU ALA GLU SER TRP ASN ALA SEQRES 12 A 177 ALA PHE LEU GLU SER SER ALA LYS GLU ASN GLN THR ALA SEQRES 13 A 177 VAL ASP VAL PHE ARG ARG ILE ILE LEU GLU ALA GLU LYS SEQRES 14 A 177 LEU GLU HIS HIS HIS HIS HIS HIS HET MG A 178 1 HET GTP A 179 32 HETNAM MG MAGNESIUM ION HETNAM GTP GUANOSINE-5'-TRIPHOSPHATE FORMUL 2 MG MG 2+ FORMUL 3 GTP C10 H16 N5 O14 P3 FORMUL 4 HOH *30(H2 O) HELIX 1 1 GLY A 18 GLU A 28 1 11 HELIX 2 2 PRO A 71 SER A 75 5 5 HELIX 3 3 SER A 89 VAL A 107 1 19 HELIX 4 4 LEU A 123 ARG A 127 5 5 HELIX 5 5 SER A 130 TRP A 141 1 12 HELIX 6 6 GLU A 152 HIS A 172 1 21 SHEET 1 A 6 GLU A 40 VAL A 49 0 SHEET 2 A 6 GLN A 52 THR A 61 -1 O GLN A 52 N VAL A 49 SHEET 3 A 6 SER A 4 LEU A 12 1 N ILE A 9 O VAL A 59 SHEET 4 A 6 GLY A 80 SER A 86 1 O GLY A 80 N ALA A 10 SHEET 5 A 6 ILE A 114 ASN A 119 1 O ASN A 119 N TYR A 85 SHEET 6 A 6 ALA A 144 GLU A 147 1 O LEU A 146 N GLY A 118 LINK OG SER A 20 MG MG A 178 1555 1555 2.45 LINK OG1 THR A 38 MG MG A 178 1555 1555 2.62 LINK MG MG A 178 O3G GTP A 179 1555 1555 2.30 LINK MG MG A 178 O1B GTP A 179 1555 1555 2.58 LINK MG MG A 178 O3B GTP A 179 1555 1555 3.09 LINK MG MG A 178 O HOH A 180 1555 1555 2.58 SITE 1 AC1 5 SER A 20 ASP A 36 THR A 38 GTP A 179 SITE 2 AC1 5 HOH A 180 SITE 1 AC2 23 ARG A 15 SER A 16 VAL A 17 GLY A 18 SITE 2 AC2 23 LYS A 19 SER A 20 SER A 21 PHE A 31 SITE 3 AC2 23 VAL A 32 ASP A 33 SER A 34 TYR A 35 SITE 4 AC2 23 THR A 38 GLY A 63 ASN A 119 LYS A 120 SITE 5 AC2 23 ASP A 122 LEU A 123 SER A 149 ALA A 150 SITE 6 AC2 23 MG A 178 HOH A 180 HOH A 181 CRYST1 102.410 98.390 47.850 90.00 90.00 90.00 C 2 2 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 0.009765 0.000000 0.000000 0.00000 SCALE2 0.000000 0.010164 0.000000 0.00000 SCALE3 0.000000 0.000000 0.020899 0.00000