HEADER SIGNALING PROTEIN 25-AUG-05 2C04 TITLE GMPPCP COMPLEX OF SRP GTPASE FFH NG DOMAIN AT ULTRA-HIGH RESOLUTION COMPND MOL_ID: 1; COMPND 2 MOLECULE: SIGNAL RECOGNITION PARTICLE PROTEIN; COMPND 3 CHAIN: A, B; COMPND 4 FRAGMENT: NG, RESIDUES 1-296; COMPND 5 SYNONYM: FIFTY-FOUR HOMOLOG; COMPND 6 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: THERMUS AQUATICUS; SOURCE 3 ORGANISM_TAXID: 271; SOURCE 4 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 5 EXPRESSION_SYSTEM_TAXID: 562 KEYWDS GMPPNP, GTP-BINDING, RNA-BINDING, SIGNALING PROTEIN, SRP, SRP54, KEYWDS 2 NUCLEOTIDE-BINDING, SIGNAL PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR U.D.RAMIREZ,A.M.PREININGER,D.M.FREYMANN REVDAT 6 13-DEC-23 2C04 1 REMARK LINK REVDAT 5 16-OCT-19 2C04 1 REMARK REVDAT 4 18-APR-12 2C04 1 KEYWDS JRNL REMARK VERSN REVDAT 4 2 1 FORMUL REVDAT 3 24-FEB-09 2C04 1 VERSN REVDAT 2 27-FEB-07 2C04 1 REMARK REVDAT 1 13-FEB-07 2C04 0 JRNL AUTH U.D.RAMIREZ,P.J.FOCIA,D.M.FREYMANN JRNL TITL NUCLEOTIDE-BINDING FLEXIBILITY IN ULTRAHIGH-RESOLUTION JRNL TITL 2 STRUCTURES OF THE SRP GTPASE FFH JRNL REF ACTA CRYSTALLOGR.,SECT.D V. 64 1043 2008 JRNL REFN ISSN 0907-4449 JRNL PMID 18931411 JRNL DOI 10.1107/S090744490802444X REMARK 2 REMARK 2 RESOLUTION. 1.15 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC 5.2.0005 REMARK 3 AUTHORS : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER, REMARK 3 : NICHOLLS,WINN,LONG,VAGIN REMARK 3 REMARK 3 REFINEMENT TARGET : MAXIMUM LIKELIHOOD REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.15 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 19.61 REMARK 3 DATA CUTOFF (SIGMA(F)) : NULL REMARK 3 COMPLETENESS FOR RANGE (%) : 89.8 REMARK 3 NUMBER OF REFLECTIONS : 169992 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 + TEST SET) : 0.146 REMARK 3 R VALUE (WORKING SET) : 0.143 REMARK 3 FREE R VALUE : 0.180 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 7.100 REMARK 3 FREE R VALUE TEST SET COUNT : 13065 REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : 20 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 1.15 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.18 REMARK 3 REFLECTION IN BIN (WORKING SET) : 10713 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 80.65 REMARK 3 BIN R VALUE (WORKING SET) : 0.1990 REMARK 3 BIN FREE R VALUE SET COUNT : 818 REMARK 3 BIN FREE R VALUE : 0.2440 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 4557 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 66 REMARK 3 SOLVENT ATOMS : 585 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 17.59 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : -0.25000 REMARK 3 B22 (A**2) : 0.16000 REMARK 3 B33 (A**2) : -0.01000 REMARK 3 B12 (A**2) : 0.00000 REMARK 3 B13 (A**2) : -0.44000 REMARK 3 B23 (A**2) : 0.00000 REMARK 3 REMARK 3 ESTIMATED OVERALL COORDINATE ERROR. REMARK 3 ESU BASED ON R VALUE (A): 0.056 REMARK 3 ESU BASED ON FREE R VALUE (A): 0.051 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.034 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 1.580 REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : 0.977 REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : 0.971 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES COUNT RMS WEIGHT REMARK 3 BOND LENGTHS REFINED ATOMS (A): 8559 ; 0.009 ; 0.022 REMARK 3 BOND LENGTHS OTHERS (A): 8358 ; 0.004 ; 0.020 REMARK 3 BOND ANGLES REFINED ATOMS (DEGREES): 11608 ; 1.487 ; 2.038 REMARK 3 BOND ANGLES OTHERS (DEGREES): 19300 ; 0.772 ; 3.000 REMARK 3 TORSION ANGLES, PERIOD 1 (DEGREES): 1109 ; 5.527 ; 5.000 REMARK 3 TORSION ANGLES, PERIOD 2 (DEGREES): 372 ;33.206 ;22.930 REMARK 3 TORSION ANGLES, PERIOD 3 (DEGREES): 1567 ;12.466 ;15.000 REMARK 3 TORSION ANGLES, PERIOD 4 (DEGREES): 107 ;13.878 ;15.000 REMARK 3 CHIRAL-CENTER RESTRAINTS (A**3): 1312 ; 0.067 ; 0.200 REMARK 3 GENERAL PLANES REFINED ATOMS (A): 9613 ; 0.005 ; 0.020 REMARK 3 GENERAL PLANES OTHERS (A): 1718 ; 0.002 ; 0.020 REMARK 3 NON-BONDED CONTACTS REFINED ATOMS (A): 1168 ; 0.232 ; 0.200 REMARK 3 NON-BONDED CONTACTS OTHERS (A): 6638 ; 0.176 ; 0.200 REMARK 3 NON-BONDED TORSION REFINED ATOMS (A): 2861 ; 0.169 ; 0.200 REMARK 3 NON-BONDED TORSION OTHERS (A): 4228 ; 0.082 ; 0.200 REMARK 3 H-BOND (X...Y) REFINED ATOMS (A): 508 ; 0.210 ; 0.200 REMARK 3 H-BOND (X...Y) OTHERS (A): 1 ; 0.095 ; 0.200 REMARK 3 POTENTIAL METAL-ION REFINED ATOMS (A): 1 ; 0.011 ; 0.200 REMARK 3 POTENTIAL METAL-ION OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY VDW REFINED ATOMS (A): 53 ; 0.274 ; 0.200 REMARK 3 SYMMETRY VDW OTHERS (A): 204 ; 0.257 ; 0.200 REMARK 3 SYMMETRY H-BOND REFINED ATOMS (A): 63 ; 0.217 ; 0.200 REMARK 3 SYMMETRY H-BOND OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY METAL-ION REFINED ATOMS (A): 1 ; 0.035 ; 0.200 REMARK 3 SYMMETRY METAL-ION OTHERS (A): NULL ; NULL ; NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. COUNT RMS WEIGHT REMARK 3 MAIN-CHAIN BOND REFINED ATOMS (A**2): 5622 ; 4.156 ; 1.500 REMARK 3 MAIN-CHAIN BOND OTHER ATOMS (A**2): 2233 ; 1.657 ; 1.500 REMARK 3 MAIN-CHAIN ANGLE REFINED ATOMS (A**2): 8613 ; 4.739 ; 2.000 REMARK 3 MAIN-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN BOND REFINED ATOMS (A**2): 3347 ; 8.299 ; 3.000 REMARK 3 SIDE-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE REFINED ATOMS (A**2): 2994 ;10.705 ; 4.500 REMARK 3 SIDE-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 LONG RANGE B REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 LONG RANGE B OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 REMARK 3 ANISOTROPIC THERMAL FACTOR RESTRAINTS. COUNT RMS WEIGHT REMARK 3 RIGID-BOND RESTRAINTS (A**2): NULL ; NULL ; NULL REMARK 3 SPHERICITY; FREE ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SPHERICITY; BONDED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 REMARK 3 NCS RESTRAINTS STATISTICS REMARK 3 NUMBER OF DIFFERENT NCS GROUPS : NULL REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : NULL REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : BABINET MODEL WITH MASK REMARK 3 PARAMETERS FOR MASK CALCULATION REMARK 3 VDW PROBE RADIUS : 1.20 REMARK 3 ION PROBE RADIUS : 0.80 REMARK 3 SHRINKAGE RADIUS : 0.80 REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: HYDROGENS HAVE BEEN ADDED IN THE RIDING REMARK 3 POSITIONS. REMARK 4 REMARK 4 2C04 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 25-AUG-05. REMARK 100 THE DEPOSITION ID IS D_1290025433. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 26-APR-02 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 4.7 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : APS REMARK 200 BEAMLINE : 5ID-B REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.90 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : ADSC CCD REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 192311 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.150 REMARK 200 RESOLUTION RANGE LOW (A) : 19.600 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 3.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 94.3 REMARK 200 DATA REDUNDANCY : 4.500 REMARK 200 R MERGE (I) : 0.06000 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 29.7000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.15 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.18 REMARK 200 COMPLETENESS FOR SHELL (%) : 90.9 REMARK 200 DATA REDUNDANCY IN SHELL : 3.00 REMARK 200 R MERGE FOR SHELL (I) : 0.30000 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 3.400 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: REFMAC REMARK 200 STARTING MODEL: PDB ENTRY 1JPN REMARK 200 REMARK 200 REMARK: DATA WERE COLLECTED IN THREE OVERLAPPING RESOLUTION RANGES REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 45.00 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.51 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 30% MPD, 0.1M NAACETATE, PH4.7, 20MM REMARK 280 CACL2, 0.15M KOACETATE, 2MM MGCL2, 2MM GMPPCP REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: C 1 2 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,Y,-Z REMARK 290 3555 X+1/2,Y+1/2,Z 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 0.00000 REMARK 290 SMTRY2 2 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 3 1.000000 0.000000 0.000000 54.50300 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 27.22000 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 4 -1.000000 0.000000 0.000000 54.50300 REMARK 290 SMTRY2 4 0.000000 1.000000 0.000000 27.22000 REMARK 290 SMTRY3 4 0.000000 0.000000 -1.000000 0.00000 REMARK 290 REMARK 290 REMARK: NULL REMARK 300 REMARK 300 BIOMOLECULE: 1, 2 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 SOFTWARE DETERMINED QUATERNARY STRUCTURE: MONOMERIC REMARK 350 SOFTWARE USED: PISA 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 REMARK 350 BIOMOLECULE: 2 REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: MONOMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: MONOMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 APPLY THE FOLLOWING TO CHAINS: 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 400 REMARK 400 COMPOUND REMARK 400 MANDATORY FOR EFFICIENT EXPORT OF EXTRA-CYTOPLASMIC REMARK 400 PROTEINS 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 VAL B 297 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 LYS B 96 CE NZ REMARK 470 GLU B 277 CG CD OE1 OE2 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 HG3 ARG B 231 O HOH B 2194 1.29 REMARK 500 HA ARG B 252 O HOH B 2211 1.47 REMARK 500 O ALA B 251 O HOH B 2210 1.50 REMARK 500 H ASN A 44 O HOH A 2061 1.53 REMARK 500 O ALA B 251 O HOH B 2211 1.74 REMARK 500 O ARG A 252 O HOH A 2269 1.76 REMARK 500 O HOH B 2178 O HOH B 2179 1.85 REMARK 500 O HOH B 2219 O HOH B 2221 1.90 REMARK 500 OD2 ASP A 212 O HOH A 2242 1.91 REMARK 500 NZ LYS A 117 O HOH A 2129 1.95 REMARK 500 OD1 ASN A 99 O HOH A 2242 1.99 REMARK 500 O HOH B 2112 O HOH B 2155 2.07 REMARK 500 O ALA A 256 O HOH A 2274 2.09 REMARK 500 CA ARG B 252 O HOH B 2211 2.12 REMARK 500 CG ARG B 231 O HOH B 2194 2.16 REMARK 500 O GLU A 163 O HOH A 2182 2.18 REMARK 500 O LEU B 16 O HOH B 2022 2.18 REMARK 500 C ALA B 251 O HOH B 2210 2.19 REMARK 500 ND1 HIS B 261 O HOH B 2222 2.19 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 B 2178 O HOH B 2217 2656 1.95 REMARK 500 O HOH A 2305 O HOH B 2140 2656 2.07 REMARK 500 O HOH A 2164 O HOH A 2181 4645 2.10 REMARK 500 REMARK 500 REMARK: NULL 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 GLU A 143 CA GLU A 143 C -0.330 REMARK 500 GLU A 143 CA GLU A 143 C 0.455 REMARK 500 GLU A 143 C GLU A 143 O 0.256 REMARK 500 GLU A 143 C GLN A 144 N -0.531 REMARK 500 LYS B 96 CG LYS B 96 CD 0.236 REMARK 500 LYS B 151 CG LYS B 151 CD 1.135 REMARK 500 GLY B 295 C ASP B 296 N -0.647 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 GLU A 143 CA - C - O ANGL. DEV. = 48.0 DEGREES REMARK 500 GLU A 143 CA - C - O ANGL. DEV. = -33.5 DEGREES REMARK 500 GLU A 143 O - C - N ANGL. DEV. = 34.5 DEGREES REMARK 500 LYS B 151 CB - CG - CD ANGL. DEV. = -32.9 DEGREES REMARK 500 GLY B 295 CA - C - N ANGL. DEV. = 15.5 DEGREES REMARK 500 GLY B 295 O - C - N ANGL. DEV. = -74.8 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 PHE A 2 -16.03 66.53 REMARK 500 ASP A 42 34.16 73.76 REMARK 500 LYS A 96 -154.97 -132.82 REMARK 500 ARG A 128 79.31 -117.41 REMARK 500 LEU A 183 96.26 -165.10 REMARK 500 ILE A 194 92.18 -66.99 REMARK 500 VAL A 237 -50.09 -123.96 REMARK 500 ASP A 250 114.10 -8.96 REMARK 500 ALA A 251 -168.69 -163.44 REMARK 500 ARG A 252 -31.80 -136.69 REMARK 500 PHE B 2 -0.83 81.85 REMARK 500 VAL B 237 -52.22 -125.28 REMARK 500 ARG B 252 -73.47 -99.59 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: MAIN CHAIN PLANARITY REMARK 500 REMARK 500 THE FOLLOWING RESIDUES HAVE A PSEUDO PLANARITY REMARK 500 TORSION ANGLE, C(I) - CA(I) - N(I+1) - O(I), GREATER REMARK 500 10.0 DEGREES. (M=MODEL NUMBER; RES=RESIDUE NAME; REMARK 500 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; REMARK 500 I=INSERTION CODE). REMARK 500 REMARK 500 M RES CSSEQI ANGLE REMARK 500 GLY B 295 -89.75 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 A2320 DISTANCE = 6.38 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 CA A1299 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HOH A2327 O REMARK 620 2 HOH A2328 O 79.6 REMARK 620 3 HOH A2329 O 137.4 71.7 REMARK 620 4 HOH A2330 O 74.9 100.9 80.2 REMARK 620 5 GLU B 46 OE2 131.5 93.1 81.7 152.4 REMARK 620 6 GLU B 46 OE2 122.9 93.7 90.4 159.1 8.9 REMARK 620 7 GLU B 46 OE1 79.4 80.9 124.5 153.5 52.1 43.7 REMARK 620 8 GLU B 46 OE1 70.5 77.5 129.7 145.2 61.1 52.8 9.2 REMARK 620 9 GLU B 207 OE2 132.2 144.7 73.5 78.5 76.4 80.9 115.2 122.7 REMARK 620 N 1 2 3 4 5 6 7 8 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CA A1300 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HOH A2324 O REMARK 620 2 HOH A2331 O 136.8 REMARK 620 3 HOH A2332 O 64.1 92.8 REMARK 620 N 1 2 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE GCP A 1298 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE GCP B 1297 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 1299 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 1300 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1FFH RELATED DB: PDB REMARK 900 N AND GTPASE DOMAINS OF THE SIGNAL SEQUENCE RECOGNITION PROTEIN FFH REMARK 900 FROM THERMUS AQUATICUS REMARK 900 RELATED ID: 1JPJ RELATED DB: PDB REMARK 900 GMPPNP COMPLEX OF SRP GTPASE NG DOMAIN REMARK 900 RELATED ID: 1JPN RELATED DB: PDB REMARK 900 GMPPNP COMPLEX OF SRP GTPASE NG DOMAIN REMARK 900 RELATED ID: 1LS1 RELATED DB: PDB REMARK 900 T. AQUATICUS FFH NG DOMAIN AT 1.1A RESOLUTION REMARK 900 RELATED ID: 1NG1 RELATED DB: PDB REMARK 900 N AND GTPASE DOMAINS OF THE SIGNAL SEQUENCE RECOGNITION PROTEIN FFH REMARK 900 FROM THERMUS AQUATICUS REMARK 900 RELATED ID: 1O87 RELATED DB: PDB REMARK 900 A NEW MGGDP COMPLEX OF THE FFH NG DOMAIN REMARK 900 RELATED ID: 1OKK RELATED DB: PDB REMARK 900 A SCARILY SYMMETRIC HOMO-HETERODIMER REMARK 900 RELATED ID: 1RJ9 RELATED DB: PDB REMARK 900 STRUCTURE OF THE HETERODIMER OF THE CONSERVED GTPASEDOMAINS OF THE REMARK 900 SIGNAL RECOGNITION PARTICLE (FFH) AND ITS RECEPTOR (FTSY) REMARK 900 RELATED ID: 1RY1 RELATED DB: PDB REMARK 900 STRUCTURE OF THE SIGNAL RECOGNITION PARTICLE INTERACTING WITH THE REMARK 900 ELONGATION-ARRESTED RIBOSOME REMARK 900 RELATED ID: 2BQS RELATED DB: PDB REMARK 900 WATER STRUCTURE OF T. AQUATICUS FFH NG DOMAIN AT 1.1A RESOLUTION REMARK 900 RELATED ID: 2BQT RELATED DB: PDB REMARK 900 WATER STRUCTURE OF T. AQUATICUS FFH NG DOMAIN AT 1.1A RESOLUTION REMARK 900 RELATED ID: 2C03 RELATED DB: PDB REMARK 900 GDP COMPLEX OF SRP GTPASE FFH NG DOMAIN REMARK 900 RELATED ID: 2FFH RELATED DB: PDB REMARK 900 THE SIGNAL SEQUENCE BINDING PROTEIN FFH FROM THERMUS AQUATICUS REMARK 900 RELATED ID: 2NG1 RELATED DB: PDB REMARK 900 N AND GTPASE DOMAINS OF THE SIGNAL SEQUENCE RECOGNITIONPROTEIN FFH REMARK 900 FROM THERMUS AQUATICUS REMARK 900 RELATED ID: 3NG1 RELATED DB: PDB REMARK 900 N AND GTPASE DOMAINS OF THE SIGNAL SEQUENCE RECOGNITIONPROTEIN FFH REMARK 900 FROM THERMUS AQUATICUS DBREF 2C04 A 1 1 PDB 2C04 2C04 1 1 DBREF 2C04 A 2 297 UNP O07347 SRP54_THEAQ 1 296 DBREF 2C04 B 1 1 PDB 2C04 2C04 1 1 DBREF 2C04 B 2 297 UNP O07347 SRP54_THEAQ 1 296 SEQRES 1 A 297 MET PHE GLN GLN LEU SER ALA ARG LEU GLN GLU ALA ILE SEQRES 2 A 297 GLY ARG LEU ARG GLY ARG GLY ARG ILE THR GLU GLU ASP SEQRES 3 A 297 LEU LYS ALA THR LEU ARG GLU ILE ARG ARG ALA LEU MET SEQRES 4 A 297 ASP ALA ASP VAL ASN LEU GLU VAL ALA ARG ASP PHE VAL SEQRES 5 A 297 GLU ARG VAL ARG GLU GLU ALA LEU GLY LYS GLN VAL LEU SEQRES 6 A 297 GLU SER LEU THR PRO ALA GLU VAL ILE LEU ALA THR VAL SEQRES 7 A 297 TYR GLU ALA LEU LYS GLU ALA LEU GLY GLY GLU ALA ARG SEQRES 8 A 297 LEU PRO VAL LEU LYS ASP ARG ASN LEU TRP PHE LEU VAL SEQRES 9 A 297 GLY LEU GLN GLY SER GLY LYS THR THR THR ALA ALA LYS SEQRES 10 A 297 LEU ALA LEU TYR TYR LYS GLY LYS GLY ARG ARG PRO LEU SEQRES 11 A 297 LEU VAL ALA ALA ASP THR GLN ARG PRO ALA ALA ARG GLU SEQRES 12 A 297 GLN LEU ARG LEU LEU GLY GLU LYS VAL GLY VAL PRO VAL SEQRES 13 A 297 LEU GLU VAL MET ASP GLY GLU SER PRO GLU SER ILE ARG SEQRES 14 A 297 ARG ARG VAL GLU GLU LYS ALA ARG LEU GLU ALA ARG ASP SEQRES 15 A 297 LEU ILE LEU VAL ASP THR ALA GLY ARG LEU GLN ILE ASP SEQRES 16 A 297 GLU PRO LEU MET GLY GLU LEU ALA ARG LEU LYS GLU VAL SEQRES 17 A 297 LEU GLY PRO ASP GLU VAL LEU LEU VAL LEU ASP ALA MET SEQRES 18 A 297 THR GLY GLN GLU ALA LEU SER VAL ALA ARG ALA PHE ASP SEQRES 19 A 297 GLU LYS VAL GLY VAL THR GLY LEU VAL LEU THR LYS LEU SEQRES 20 A 297 ASP GLY ASP ALA ARG GLY GLY ALA ALA LEU SER ALA ARG SEQRES 21 A 297 HIS VAL THR GLY LYS PRO ILE TYR PHE ALA GLY VAL SER SEQRES 22 A 297 GLU LYS PRO GLU GLY LEU GLU PRO PHE TYR PRO GLU ARG SEQRES 23 A 297 LEU ALA GLY ARG ILE LEU GLY MET GLY ASP VAL SEQRES 1 B 297 MET PHE GLN GLN LEU SER ALA ARG LEU GLN GLU ALA ILE SEQRES 2 B 297 GLY ARG LEU ARG GLY ARG GLY ARG ILE THR GLU GLU ASP SEQRES 3 B 297 LEU LYS ALA THR LEU ARG GLU ILE ARG ARG ALA LEU MET SEQRES 4 B 297 ASP ALA ASP VAL ASN LEU GLU VAL ALA ARG ASP PHE VAL SEQRES 5 B 297 GLU ARG VAL ARG GLU GLU ALA LEU GLY LYS GLN VAL LEU SEQRES 6 B 297 GLU SER LEU THR PRO ALA GLU VAL ILE LEU ALA THR VAL SEQRES 7 B 297 TYR GLU ALA LEU LYS GLU ALA LEU GLY GLY GLU ALA ARG SEQRES 8 B 297 LEU PRO VAL LEU LYS ASP ARG ASN LEU TRP PHE LEU VAL SEQRES 9 B 297 GLY LEU GLN GLY SER GLY LYS THR THR THR ALA ALA LYS SEQRES 10 B 297 LEU ALA LEU TYR TYR LYS GLY LYS GLY ARG ARG PRO LEU SEQRES 11 B 297 LEU VAL ALA ALA ASP THR GLN ARG PRO ALA ALA ARG GLU SEQRES 12 B 297 GLN LEU ARG LEU LEU GLY GLU LYS VAL GLY VAL PRO VAL SEQRES 13 B 297 LEU GLU VAL MET ASP GLY GLU SER PRO GLU SER ILE ARG SEQRES 14 B 297 ARG ARG VAL GLU GLU LYS ALA ARG LEU GLU ALA ARG ASP SEQRES 15 B 297 LEU ILE LEU VAL ASP THR ALA GLY ARG LEU GLN ILE ASP SEQRES 16 B 297 GLU PRO LEU MET GLY GLU LEU ALA ARG LEU LYS GLU VAL SEQRES 17 B 297 LEU GLY PRO ASP GLU VAL LEU LEU VAL LEU ASP ALA MET SEQRES 18 B 297 THR GLY GLN GLU ALA LEU SER VAL ALA ARG ALA PHE ASP SEQRES 19 B 297 GLU LYS VAL GLY VAL THR GLY LEU VAL LEU THR LYS LEU SEQRES 20 B 297 ASP GLY ASP ALA ARG GLY GLY ALA ALA LEU SER ALA ARG SEQRES 21 B 297 HIS VAL THR GLY LYS PRO ILE TYR PHE ALA GLY VAL SER SEQRES 22 B 297 GLU LYS PRO GLU GLY LEU GLU PRO PHE TYR PRO GLU ARG SEQRES 23 B 297 LEU ALA GLY ARG ILE LEU GLY MET GLY ASP VAL HET GCP A1298 88 HET CA A1299 1 HET CA A1300 1 HET GCP B1297 44 HETNAM GCP PHOSPHOMETHYLPHOSPHONIC ACID GUANYLATE ESTER HETNAM CA CALCIUM ION FORMUL 3 GCP 2(C11 H18 N5 O13 P3) FORMUL 4 CA 2(CA 2+) FORMUL 7 HOH *585(H2 O) HELIX 1 1 PHE A 2 ARG A 15 1 14 HELIX 2 2 THR A 23 ALA A 41 1 19 HELIX 3 3 ASN A 44 LYS A 62 1 19 HELIX 4 4 GLN A 63 SER A 67 5 5 HELIX 5 5 THR A 69 LEU A 86 1 18 HELIX 6 6 GLY A 110 LYS A 125 1 16 HELIX 7 7 ARG A 138 GLY A 153 1 16 HELIX 8 8 SER A 164 ALA A 180 1 17 HELIX 9 9 ASP A 195 GLY A 210 1 16 HELIX 10 10 MET A 221 GLY A 223 5 3 HELIX 11 11 GLN A 224 VAL A 237 1 14 HELIX 12 12 GLY A 253 GLY A 264 1 12 HELIX 13 13 TYR A 283 LEU A 292 1 10 HELIX 14 14 PHE B 2 ARG B 15 1 14 HELIX 15 15 THR B 23 ALA B 41 1 19 HELIX 16 16 ASN B 44 LYS B 62 1 19 HELIX 17 17 THR B 69 LEU B 86 1 18 HELIX 18 18 GLY B 110 LYS B 125 1 16 HELIX 19 19 ARG B 138 VAL B 152 1 15 HELIX 20 20 SER B 164 GLU B 179 1 16 HELIX 21 21 ASP B 195 GLY B 210 1 16 HELIX 22 22 MET B 221 GLY B 223 5 3 HELIX 23 23 GLN B 224 VAL B 237 1 14 HELIX 24 24 GLY B 253 GLY B 264 1 12 HELIX 25 25 TYR B 283 LEU B 292 1 10 SHEET 1 AA 8 VAL A 156 GLU A 158 0 SHEET 2 AA 8 PRO A 129 ALA A 133 1 O LEU A 131 N LEU A 157 SHEET 3 AA 8 LEU A 183 ASP A 187 1 O LEU A 183 N LEU A 130 SHEET 4 AA 8 LEU A 100 VAL A 104 1 O TRP A 101 N VAL A 186 SHEET 5 AA 8 GLU A 213 ASP A 219 1 O GLU A 213 N PHE A 102 SHEET 6 AA 8 GLY A 241 THR A 245 1 O GLY A 241 N LEU A 216 SHEET 7 AA 8 ILE A 267 GLY A 271 1 N TYR A 268 O LEU A 242 SHEET 8 AA 8 LEU A 279 PRO A 281 -1 O GLU A 280 N ALA A 270 SHEET 1 BA 8 VAL B 156 GLU B 158 0 SHEET 2 BA 8 PRO B 129 ALA B 133 1 O LEU B 131 N LEU B 157 SHEET 3 BA 8 LEU B 183 ASP B 187 1 O LEU B 183 N LEU B 130 SHEET 4 BA 8 ASN B 99 VAL B 104 1 O ASN B 99 N ILE B 184 SHEET 5 BA 8 GLU B 213 ASP B 219 1 O GLU B 213 N PHE B 102 SHEET 6 BA 8 GLY B 241 THR B 245 1 O GLY B 241 N LEU B 216 SHEET 7 BA 8 ILE B 267 GLY B 271 1 N TYR B 268 O LEU B 242 SHEET 8 BA 8 LEU B 279 PRO B 281 -1 O GLU B 280 N ALA B 270 LINK CA CA A1299 O HOH A2327 1555 1555 2.39 LINK CA CA A1299 O HOH A2328 1555 1555 2.37 LINK CA CA A1299 O HOH A2329 1555 1555 2.39 LINK CA CA A1299 O HOH A2330 1555 1555 2.36 LINK CA CA A1299 OE2AGLU B 46 1555 1555 2.53 LINK CA CA A1299 OE2BGLU B 46 1555 1555 2.32 LINK CA CA A1299 OE1AGLU B 46 1555 1555 2.47 LINK CA CA A1299 OE1BGLU B 46 1555 1555 2.59 LINK CA CA A1299 OE2AGLU B 207 1555 2656 2.39 LINK CA CA A1299 OE1AGLU B 207 1555 2656 2.52 LINK CA CA A1299 OE1BGLU B 207 1555 2656 2.55 LINK CA CA A1300 O HOH A2324 1555 1555 2.41 LINK CA CA A1300 O HOH A2331 1555 1555 2.32 LINK CA CA A1300 O HOH A2332 1555 1555 2.32 SITE 1 AC1 23 LEU A 106 GLN A 107 GLY A 108 SER A 109 SITE 2 AC1 23 GLY A 110 LYS A 111 THR A 112 THR A 113 SITE 3 AC1 23 LYS A 117 GLN A 144 GLY A 190 LYS A 246 SITE 4 AC1 23 ASP A 248 GLY A 271 VAL A 272 SER A 273 SITE 5 AC1 23 GLU A 274 HOH A2128 HOH A2315 HOH A2316 SITE 6 AC1 23 HOH A2317 HOH A2318 HOH A2319 SITE 1 AC2 25 LEU B 106 GLN B 107 GLY B 108 SER B 109 SITE 2 AC2 25 GLY B 110 LYS B 111 THR B 112 THR B 113 SITE 3 AC2 25 GLN B 144 GLY B 190 LYS B 246 ASP B 248 SITE 4 AC2 25 GLY B 271 VAL B 272 SER B 273 GLU B 274 SITE 5 AC2 25 HOH B2105 HOH B2106 HOH B2159 HOH B2251 SITE 6 AC2 25 HOH B2252 HOH B2253 HOH B2254 HOH B2255 SITE 7 AC2 25 HOH B2256 SITE 1 AC3 6 HOH A2327 HOH A2328 HOH A2329 HOH A2330 SITE 2 AC3 6 GLU B 46 GLU B 207 SITE 1 AC4 7 GLU A 46 GLU A 207 HOH A2324 HOH A2331 SITE 2 AC4 7 HOH A2332 THR B 69 GLU B 72 CRYST1 109.006 54.440 98.831 90.00 97.16 90.00 C 1 2 1 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 0.009174 0.000000 0.001152 0.00000 SCALE2 0.000000 0.018369 0.000000 0.00000 SCALE3 0.000000 0.000000 0.010198 0.00000 MTRIX1 1 -0.804508 0.001286 -0.593941 92.19060 1 MTRIX2 1 0.015166 0.999716 -0.018378 0.00000 1 MTRIX3 1 0.059375 -0.023792 -0.804299 0.00000 1