HEADER LIGASE 15-OCT-12 4HK4 TITLE CRYSTAL STRUCTURE OF APO TYROSINE-TRNA LIGASE MUTANT PROTEIN COMPND MOL_ID: 1; COMPND 2 MOLECULE: TYROSINE--TRNA LIGASE; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: TYROSYL-TRNA SYNTHETASE, TYRRS; COMPND 5 EC: 6.1.1.1; COMPND 6 ENGINEERED: YES; COMPND 7 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: METHANOCALDOCOCCUS JANNASCHII; SOURCE 3 ORGANISM_TAXID: 2190; SOURCE 4 GENE: TYRS, MJ0389; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 7 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 8 EXPRESSION_SYSTEM_PLASMID: PET22B KEYWDS 3-O-METHYL TYROSINE INCORPORATION INTO PEPTIDE, TRNA, LIGASE EXPDTA X-RAY DIFFRACTION AUTHOR Y.YU,Q.ZHOU,J.DONG,J.LI,L.XIAOXUAN,A.MUKHERJEE,H.OUYANG,M.NILGES, AUTHOR 2 H.LI,F.GAO,W.GONG,Y.LU,J.WANG REVDAT 5 20-SEP-23 4HK4 1 REMARK SEQADV REVDAT 4 15-NOV-17 4HK4 1 REMARK REVDAT 3 27-MAY-15 4HK4 1 AUTHOR JRNL REVDAT 2 10-JUL-13 4HK4 1 AUTHOR JRNL REVDAT 1 17-APR-13 4HK4 0 JRNL AUTH Y.YU,Q.ZHOU,J.DONG,J.LI,L.XIAOXUAN,A.MUKHERJEE,H.OUYANG, JRNL AUTH 2 M.NILGES,H.LI,F.GAO,W.GONG,Y.LU,J.WANG JRNL TITL CRYSTAL STRUCTURE OF APO TYROSINE-TRNA LIGASE MUTANT PROTEIN JRNL REF TO BE PUBLISHED JRNL REFN REMARK 2 REMARK 2 RESOLUTION. 2.30 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PHENIX (PHENIX.REFINE: 1.6.2_432) REMARK 3 AUTHORS : PAUL ADAMS,PAVEL AFONINE,VINCENT CHEN,IAN REMARK 3 : DAVIS,KRESHNA GOPAL,RALF GROSSE-KUNSTLEVE, REMARK 3 : LI-WEI HUNG,ROBERT IMMORMINO,TOM IOERGER, REMARK 3 : AIRLIE MCCOY,ERIK MCKEE,NIGEL MORIARTY, REMARK 3 : REETAL PAI,RANDY READ,JANE RICHARDSON, REMARK 3 : DAVID RICHARDSON,TOD ROMO,JIM SACCHETTINI, REMARK 3 : NICHOLAS SAUTER,JACOB SMITH,LAURENT REMARK 3 : STORONI,TOM TERWILLIGER,PETER ZWART REMARK 3 REMARK 3 REFINEMENT TARGET : ML REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.30 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 31.29 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 93.0 REMARK 3 NUMBER OF REFLECTIONS : 14240 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.231 REMARK 3 R VALUE (WORKING SET) : 0.229 REMARK 3 FREE R VALUE : 0.277 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.020 REMARK 3 FREE R VALUE TEST SET COUNT : 715 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT (IN BINS). REMARK 3 BIN RESOLUTION RANGE COMPL. NWORK NFREE RWORK RFREE REMARK 3 1 31.2902 - 3.9276 0.99 2983 151 0.1860 0.2335 REMARK 3 2 3.9276 - 3.1184 0.98 2854 152 0.2461 0.2606 REMARK 3 3 3.1184 - 2.7244 0.96 2794 149 0.2798 0.3478 REMARK 3 4 2.7244 - 2.4754 0.95 2721 169 0.2697 0.3342 REMARK 3 5 2.4754 - 2.2981 0.75 2173 94 0.2653 0.3556 REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : FLAT BULK SOLVENT MODEL REMARK 3 SOLVENT RADIUS : 1.11 REMARK 3 SHRINKAGE RADIUS : 0.90 REMARK 3 K_SOL : 0.31 REMARK 3 B_SOL : 25.97 REMARK 3 REMARK 3 ERROR ESTIMATES. REMARK 3 COORDINATE ERROR (MAXIMUM-LIKELIHOOD BASED) : 0.290 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 30.090 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) : -11.09960 REMARK 3 B22 (A**2) : 8.88210 REMARK 3 B33 (A**2) : 2.21750 REMARK 3 B12 (A**2) : 0.00000 REMARK 3 B13 (A**2) : -6.92500 REMARK 3 B23 (A**2) : 0.00000 REMARK 3 REMARK 3 TWINNING INFORMATION. REMARK 3 FRACTION: NULL REMARK 3 OPERATOR: NULL REMARK 3 REMARK 3 DEVIATIONS FROM IDEAL VALUES. REMARK 3 RMSD COUNT REMARK 3 BOND : 0.002 2530 REMARK 3 ANGLE : 0.662 3394 REMARK 3 CHIRALITY : 0.041 374 REMARK 3 PLANARITY : 0.002 436 REMARK 3 DIHEDRAL : 12.707 1000 REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : NULL REMARK 3 REMARK 3 NCS DETAILS REMARK 3 NUMBER OF NCS GROUPS : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 4HK4 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 17-OCT-12. REMARK 100 THE DEPOSITION ID IS D_1000075565. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 29-JUN-10 REMARK 200 TEMPERATURE (KELVIN) : 90 REMARK 200 PH : 6.1 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : SSRF REMARK 200 BEAMLINE : BL17U REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.979 REMARK 200 MONOCHROMATOR : SI(111) REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : MARMOSAIC 225 MM CCD REMARK 200 INTENSITY-INTEGRATION SOFTWARE : HKL-2000 REMARK 200 DATA SCALING SOFTWARE : HKL-2000 REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 14520 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.290 REMARK 200 RESOLUTION RANGE LOW (A) : 50.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 1.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 94.8 REMARK 200 DATA REDUNDANCY : 5.000 REMARK 200 R MERGE (I) : 0.05300 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 30.4000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.30 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.38 REMARK 200 COMPLETENESS FOR SHELL (%) : 70.5 REMARK 200 DATA REDUNDANCY IN SHELL : 4.30 REMARK 200 R MERGE FOR SHELL (I) : 0.26500 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 4.970 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: MOLREP, PHASER REMARK 200 STARTING MODEL: 1J1U REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 48.67 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.40 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PROTEIN SAMPLE (40MG/ML) IN 25MM TRIS REMARK 280 -CL PH8.0, 50MM NACL MIXED WITH EQUAL VOLUME OF RESERVIOR REMARK 280 SOLUTION CONTAINING 20-22% PEG3350, 0.2M (NH4)2SO4, 0.1M SODIUM REMARK 280 CITRATE PH6.1-6.2, FOR 5 DAYS, VAPOR DIFFUSION, SITTING DROP, REMARK 280 TEMPERATURE 289K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 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 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 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 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 4110 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 27280 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -11.0 KCAL/MOL 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 -1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT2 2 0.000000 1.000000 0.000000 0.00000 REMARK 350 BIOMT3 2 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 HIS A 310 REMARK 465 HIS A 311 REMARK 465 HIS A 312 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 GLU A 259 CG CD OE1 OE2 REMARK 470 LYS A 260 CG CD CE NZ 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 ASP A 2 -153.93 -74.65 REMARK 500 GLU A 140 -46.94 69.88 REMARK 500 ASP A 141 128.60 64.70 REMARK 500 GLU A 202 78.56 -109.17 REMARK 500 CYS A 231 68.42 -167.81 REMARK 500 LYS A 260 -41.99 71.71 REMARK 500 ASP A 264 99.10 50.02 REMARK 500 REMARK 500 REMARK: NULL REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE PEG A 401 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE PEG A 402 DBREF 4HK4 A 1 306 UNP Q57834 SYY_METJA 1 306 SEQADV 4HK4 GLU A 32 UNP Q57834 TYR 32 ENGINEERED MUTATION SEQADV 4HK4 SER A 65 UNP Q57834 LEU 65 ENGINEERED MUTATION SEQADV 4HK4 GLY A 70 UNP Q57834 HIS 70 ENGINEERED MUTATION SEQADV 4HK4 GLY A 109 UNP Q57834 GLN 109 ENGINEERED MUTATION SEQADV 4HK4 ASN A 158 UNP Q57834 ASP 158 ENGINEERED MUTATION SEQADV 4HK4 VAL A 162 UNP Q57834 LEU 162 ENGINEERED MUTATION SEQADV 4HK4 ALA A 307 UNP Q57834 EXPRESSION TAG SEQADV 4HK4 HIS A 308 UNP Q57834 EXPRESSION TAG SEQADV 4HK4 HIS A 309 UNP Q57834 EXPRESSION TAG SEQADV 4HK4 HIS A 310 UNP Q57834 EXPRESSION TAG SEQADV 4HK4 HIS A 311 UNP Q57834 EXPRESSION TAG SEQADV 4HK4 HIS A 312 UNP Q57834 EXPRESSION TAG SEQRES 1 A 312 MET ASP GLU PHE GLU MET ILE LYS ARG ASN THR SER GLU SEQRES 2 A 312 ILE ILE SER GLU GLU GLU LEU ARG GLU VAL LEU LYS LYS SEQRES 3 A 312 ASP GLU LYS SER ALA GLU ILE GLY PHE GLU PRO SER GLY SEQRES 4 A 312 LYS ILE HIS LEU GLY HIS TYR LEU GLN ILE LYS LYS MET SEQRES 5 A 312 ILE ASP LEU GLN ASN ALA GLY PHE ASP ILE ILE ILE SER SEQRES 6 A 312 LEU ALA ASP LEU GLY ALA TYR LEU ASN GLN LYS GLY GLU SEQRES 7 A 312 LEU ASP GLU ILE ARG LYS ILE GLY ASP TYR ASN LYS LYS SEQRES 8 A 312 VAL PHE GLU ALA MET GLY LEU LYS ALA LYS TYR VAL TYR SEQRES 9 A 312 GLY SER GLU PHE GLY LEU ASP LYS ASP TYR THR LEU ASN SEQRES 10 A 312 VAL TYR ARG LEU ALA LEU LYS THR THR LEU LYS ARG ALA SEQRES 11 A 312 ARG ARG SER MET GLU LEU ILE ALA ARG GLU ASP GLU ASN SEQRES 12 A 312 PRO LYS VAL ALA GLU VAL ILE TYR PRO ILE MET GLN VAL SEQRES 13 A 312 ASN ASN ILE HIS TYR VAL GLY VAL ASP VAL ALA VAL GLY SEQRES 14 A 312 GLY MET GLU GLN ARG LYS ILE HIS MET LEU ALA ARG GLU SEQRES 15 A 312 LEU LEU PRO LYS LYS VAL VAL CYS ILE HIS ASN PRO VAL SEQRES 16 A 312 LEU THR GLY LEU ASP GLY GLU GLY LYS MET SER SER SER SEQRES 17 A 312 LYS GLY ASN PHE ILE ALA VAL ASP ASP SER PRO GLU GLU SEQRES 18 A 312 ILE ARG ALA LYS ILE LYS LYS ALA TYR CYS PRO ALA GLY SEQRES 19 A 312 VAL VAL GLU GLY ASN PRO ILE MET GLU ILE ALA LYS TYR SEQRES 20 A 312 PHE LEU GLU TYR PRO LEU THR ILE LYS ARG PRO GLU LYS SEQRES 21 A 312 PHE GLY GLY ASP LEU THR VAL ASN SER TYR GLU GLU LEU SEQRES 22 A 312 GLU SER LEU PHE LYS ASN LYS GLU LEU HIS PRO MET ASP SEQRES 23 A 312 LEU LYS ASN ALA VAL ALA GLU GLU LEU ILE LYS ILE LEU SEQRES 24 A 312 GLU PRO ILE ARG LYS ARG LEU ALA HIS HIS HIS HIS HIS HET PEG A 401 7 HET PEG A 402 7 HETNAM PEG DI(HYDROXYETHYL)ETHER FORMUL 2 PEG 2(C4 H10 O3) FORMUL 4 HOH *3(H2 O) HELIX 1 1 ASP A 2 ARG A 9 1 8 HELIX 2 2 SER A 16 LYS A 26 1 11 HELIX 3 3 HIS A 42 ALA A 58 1 17 HELIX 4 4 ALA A 67 ASN A 74 1 8 HELIX 5 5 GLU A 78 MET A 96 1 19 HELIX 6 6 GLY A 105 GLY A 109 1 5 HELIX 7 7 ASP A 111 THR A 125 1 15 HELIX 8 8 THR A 126 SER A 133 1 8 HELIX 9 9 LYS A 145 GLY A 163 1 19 HELIX 10 10 GLN A 173 LEU A 184 1 12 HELIX 11 11 SER A 218 LYS A 228 1 11 HELIX 12 12 ASN A 239 LEU A 249 1 11 HELIX 13 13 SER A 269 ASN A 279 1 11 HELIX 14 14 HIS A 283 HIS A 309 1 27 SHEET 1 A 6 GLU A 13 ILE A 15 0 SHEET 2 A 6 VAL A 189 ASN A 193 -1 O CYS A 190 N ILE A 15 SHEET 3 A 6 VAL A 166 GLY A 170 1 N ALA A 167 O VAL A 189 SHEET 4 A 6 LYS A 29 PHE A 35 1 N GLU A 32 O VAL A 168 SHEET 5 A 6 PHE A 60 LEU A 66 1 O SER A 65 N ILE A 33 SHEET 6 A 6 LYS A 101 TYR A 104 1 O LYS A 101 N ILE A 64 SHEET 1 B 2 LEU A 253 ILE A 255 0 SHEET 2 B 2 LEU A 265 VAL A 267 -1 O VAL A 267 N LEU A 253 CISPEP 1 ILE A 15 SER A 16 0 -4.06 CISPEP 2 TYR A 251 PRO A 252 0 0.00 CISPEP 3 GLY A 262 GLY A 263 0 -2.02 SITE 1 AC1 7 SER A 38 HIS A 42 HIS A 45 LYS A 204 SITE 2 AC1 7 MET A 205 SER A 207 PEG A 402 SITE 1 AC2 10 PHE A 35 HIS A 42 GLY A 44 HIS A 45 SITE 2 AC2 10 GLN A 48 LEU A 196 LYS A 204 MET A 205 SITE 3 AC2 10 PEG A 401 HOH A 503 CRYST1 52.695 38.886 83.061 90.00 90.98 90.00 P 1 2 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 0.018977 0.000000 0.000325 0.00000 SCALE2 0.000000 0.025716 0.000000 0.00000 SCALE3 0.000000 0.000000 0.012041 0.00000