PDB Short entry for 1CH8 HEADER LIGASE 31-MAR-99 1CH8 TITLE STRUCTURE OF ADENYLOSUCCINATE SYNTHETASE FROM E. COLI COMPLEXED WITH A TITLE 2 STRINGENT EFFECTOR, PPG2':3'P COMPND MOL_ID: 1; COMPND 2 MOLECULE: PROTEIN (ADENYLOSUCCINATE SYNTHETASE); COMPND 3 CHAIN: A; COMPND 4 SYNONYM: AMPSASE; COMPND 5 EC: 6.3.4.4; COMPND 6 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI; SOURCE 3 ORGANISM_TAXID: 83333; SOURCE 4 STRAIN: K-12; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 7 EXPRESSION_SYSTEM_STRAIN: PUR A- STRAIN H1238; SOURCE 8 EXPRESSION_SYSTEM_PLASMID: PTRC99A KEYWDS LIGASE, ADENYLOSUCCINATE SYNTHETASE, GTP-HYDROLYSING ENZYMES, PURINE KEYWDS 2 2 NUCLEOTIDE BIOSYNTHESIS, PPGPP, PPG2':3'P, STRINGENT EFFECTOR EXPDTA X-RAY DIFFRACTION AUTHOR Z.HOU,M.CASHEL,H.J.FROMM,R.B.HONZATKO REVDAT 5 09-AUG-23 1CH8 1 REMARK LINK REVDAT 4 04-OCT-17 1CH8 1 REMARK REVDAT 3 13-JUL-11 1CH8 1 VERSN REVDAT 2 24-FEB-09 1CH8 1 VERSN REVDAT 1 29-DEC-99 1CH8 0 JRNL AUTH Z.HOU,M.CASHEL,H.J.FROMM,R.B.HONZATKO JRNL TITL EFFECTORS OF THE STRINGENT RESPONSE TARGET THE ACTIVE SITE JRNL TITL 2 OF ESCHERICHIA COLI ADENYLOSUCCINATE SYNTHETASE. JRNL REF J.BIOL.CHEM. V. 274 17505 1999 JRNL REFN ISSN 0021-9258 JRNL PMID 10364182 JRNL DOI 10.1074/JBC.274.25.17505 REMARK 2 REMARK 2 RESOLUTION. 2.50 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : X-PLOR 3.1 REMARK 3 AUTHORS : BRUNGER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.50 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 5.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : NULL REMARK 3 DATA CUTOFF LOW (ABS(F)) : 0.0000 REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 86.0 REMARK 3 NUMBER OF REFLECTIONS : 15550 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) : 0.190 REMARK 3 FREE R VALUE : 0.250 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 10.000 REMARK 3 FREE R VALUE TEST SET COUNT : 1555 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : 0.005 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 : 3321 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 67 REMARK 3 SOLVENT ATOMS : 354 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 25.00 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) : 1.610 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 : PARHCSDX.PRO REMARK 3 PARAMETER FILE 2 : PARNAH1E.DNA REMARK 3 PARAMETER FILE 3 : PARAM19.SOL REMARK 3 PARAMETER FILE 4 : NULL REMARK 3 TOPOLOGY FILE 1 : TOPHCSDX.PRO REMARK 3 TOPOLOGY FILE 2 : TOPH19.PEP REMARK 3 TOPOLOGY FILE 3 : NULL REMARK 3 TOPOLOGY FILE 4 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1CH8 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 01-APR-99. REMARK 100 THE DEPOSITION ID IS D_1000000769. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : FEB-97 REMARK 200 TEMPERATURE (KELVIN) : 120 REMARK 200 PH : 6.5 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 : SIEMENS REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : AREA DETECTOR REMARK 200 DETECTOR MANUFACTURER : SIEMENS REMARK 200 INTENSITY-INTEGRATION SOFTWARE : X-GEN REMARK 200 DATA SCALING SOFTWARE : X-GEN REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 23427 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.400 REMARK 200 RESOLUTION RANGE LOW (A) : 50.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.0 REMARK 200 DATA REDUNDANCY : 2.500 REMARK 200 R MERGE (I) : 0.09200 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) : 2.40 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.60 REMARK 200 COMPLETENESS FOR SHELL (%) : 99.0 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: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: X-PLOR REMARK 200 STARTING MODEL: 1GIM REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 60.50 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 3.11 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 16% PEG 8000, 100MM NA-CACODYLATE (PH REMARK 280 6.5) 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 -0.866214 0.000000 0.00000 REMARK 290 SMTRY2 2 0.865837 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 105.65240 REMARK 290 SMTRY1 3 -0.500000 0.866214 0.000000 0.00000 REMARK 290 SMTRY2 3 -0.865837 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 52.82620 REMARK 290 SMTRY1 4 -0.500000 0.866214 0.000000 0.00000 REMARK 290 SMTRY2 4 0.865837 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 52.82620 REMARK 290 SMTRY1 6 -0.500000 -0.866214 0.000000 0.00000 REMARK 290 SMTRY2 6 -0.865837 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 6 0.000000 0.000000 -1.000000 105.65240 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 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 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC REMARK 350 SOFTWARE USED: PQS 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 -0.866214 0.000000 0.00000 REMARK 350 BIOMT2 2 -0.865837 0.500000 0.000000 0.00000 REMARK 350 BIOMT3 2 0.000000 0.000000 -1.000000 105.65240 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 GLN A 10 -110.26 -119.58 REMARK 500 HIS A 53 -73.26 -135.24 REMARK 500 SER A 57 37.82 -73.90 REMARK 500 GLN A 224 -141.41 48.17 REMARK 500 SER A 252 -38.69 -143.81 REMARK 500 ALA A 268 -19.59 -44.95 REMARK 500 PHE A 278 81.82 -154.34 REMARK 500 ASP A 284 -156.72 -79.63 REMARK 500 ASN A 295 57.45 30.49 REMARK 500 LEU A 360 -83.73 -90.33 REMARK 500 LYS A 366 -75.90 -32.30 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 434 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASP A 13 OD1 REMARK 620 2 GLY A 40 O 163.0 REMARK 620 3 GPX A 432 O1A 101.2 85.9 REMARK 620 4 GPX A 432 O2B 101.9 94.7 77.9 REMARK 620 5 NO3 A 433 O2 91.3 87.0 158.3 82.3 REMARK 620 6 HDA A 437 O 87.9 75.5 100.9 170.2 97.1 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 NO3 A 433 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG A 434 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE GPX A 432 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HDA A 437 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC5 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE IMP A 440 DBREF 1CH8 A 1 431 UNP P0A7D4 PURA_ECOLI 1 431 SEQRES 1 A 431 GLY ASN ASN VAL VAL VAL LEU GLY THR GLN TRP GLY ASP SEQRES 2 A 431 GLU GLY LYS GLY LYS ILE VAL ASP LEU LEU THR GLU ARG SEQRES 3 A 431 ALA LYS TYR VAL VAL ARG TYR GLN GLY GLY HIS ASN ALA SEQRES 4 A 431 GLY HIS THR LEU VAL ILE ASN GLY GLU LYS THR VAL LEU SEQRES 5 A 431 HIS LEU ILE PRO SER GLY ILE LEU ARG GLU ASN VAL THR SEQRES 6 A 431 SER ILE ILE GLY ASN GLY VAL VAL LEU SER PRO ALA ALA SEQRES 7 A 431 LEU MET LYS GLU MET LYS GLU LEU GLU ASP ARG GLY ILE SEQRES 8 A 431 PRO VAL ARG GLU ARG LEU LEU LEU SER GLU ALA CYS PRO SEQRES 9 A 431 LEU ILE LEU ASP TYR HIS VAL ALA LEU ASP ASN ALA ARG SEQRES 10 A 431 GLU LYS ALA ARG GLY ALA LYS ALA ILE GLY THR THR GLY SEQRES 11 A 431 ARG GLY ILE GLY PRO ALA TYR GLU ASP LYS VAL ALA ARG SEQRES 12 A 431 ARG GLY LEU ARG VAL GLY ASP LEU PHE ASP LYS GLU THR SEQRES 13 A 431 PHE ALA GLU LYS LEU LYS GLU VAL MET GLU TYR HIS ASN SEQRES 14 A 431 PHE GLN LEU VAL ASN TYR TYR LYS ALA GLU ALA VAL ASP SEQRES 15 A 431 TYR GLN LYS VAL LEU ASP ASP THR MET ALA VAL ALA ASP SEQRES 16 A 431 ILE LEU THR SER MET VAL VAL ASP VAL SER ASP LEU LEU SEQRES 17 A 431 ASP GLN ALA ARG GLN ARG GLY ASP PHE VAL MET PHE GLU SEQRES 18 A 431 GLY ALA GLN GLY THR LEU LEU ASP ILE ASP HIS GLY THR SEQRES 19 A 431 TYR PRO TYR VAL THR SER SER ASN THR THR ALA GLY GLY SEQRES 20 A 431 VAL ALA THR GLY SER GLY LEU GLY PRO ARG TYR VAL ASP SEQRES 21 A 431 TYR VAL LEU GLY ILE LEU LYS ALA TYR SER THR ARG VAL SEQRES 22 A 431 GLY ALA GLY PRO PHE PRO THR GLU LEU PHE ASP GLU THR SEQRES 23 A 431 GLY GLU PHE LEU CYS LYS GLN GLY ASN GLU PHE GLY ALA SEQRES 24 A 431 THR THR GLY ARG ARG ARG ARG THR GLY TRP LEU ASP THR SEQRES 25 A 431 VAL ALA VAL ARG ARG ALA VAL GLN LEU ASN SER LEU SER SEQRES 26 A 431 GLY PHE CYS LEU THR LYS LEU ASP VAL LEU ASP GLY LEU SEQRES 27 A 431 LYS GLU VAL LYS LEU CYS VAL ALA TYR ARG MET PRO ASP SEQRES 28 A 431 GLY ARG GLU VAL THR THR THR PRO LEU ALA ALA ASP ASP SEQRES 29 A 431 TRP LYS GLY VAL GLU PRO ILE TYR GLU THR MET PRO GLY SEQRES 30 A 431 TRP SER GLU SER THR PHE GLY VAL LYS ASP ARG SER GLY SEQRES 31 A 431 LEU PRO GLN ALA ALA LEU ASN TYR ILE LYS ARG ILE GLU SEQRES 32 A 431 GLU LEU THR GLY VAL PRO ILE ASP ILE ILE SER THR GLY SEQRES 33 A 431 PRO ASP ARG THR GLU THR MET ILE LEU ARG ASP PRO PHE SEQRES 34 A 431 ASP ALA HET NO3 A 433 4 HET MG A 434 1 HET GPX A 432 31 HET HDA A 437 8 HET IMP A 440 23 HETNAM NO3 NITRATE ION HETNAM MG MAGNESIUM ION HETNAM GPX GUANOSINE 5'-DIPHOSPHATE 2':3'-CYCLIC MONOPHOSPHATE HETNAM HDA HADACIDIN HETNAM IMP INOSINIC ACID FORMUL 2 NO3 N O3 1- FORMUL 3 MG MG 2+ FORMUL 4 GPX C10 H14 N5 O13 P3 FORMUL 5 HDA C3 H5 N O4 FORMUL 6 IMP C10 H13 N4 O8 P FORMUL 7 HOH *354(H2 O) HELIX 1 1 LYS A 16 GLU A 25 1 10 HELIX 2 2 PRO A 76 ARG A 89 1 14 HELIX 3 3 VAL A 93 ARG A 96 1 4 HELIX 4 4 ASP A 108 ALA A 120 1 13 HELIX 5 5 GLY A 122 LYS A 124 5 3 HELIX 6 6 ILE A 133 VAL A 141 1 9 HELIX 7 7 VAL A 148 PHE A 152 5 5 HELIX 8 8 LYS A 154 ASN A 174 1 21 HELIX 9 9 TYR A 183 MET A 191 1 9 HELIX 10 10 ALA A 194 MET A 200 1 7 HELIX 11 11 VAL A 204 ARG A 214 1 11 HELIX 12 12 THR A 226 LEU A 228 5 3 HELIX 13 13 ALA A 245 THR A 250 5 6 HELIX 14 14 PRO A 256 TYR A 258 5 3 HELIX 15 15 GLU A 285 GLN A 293 1 9 HELIX 16 16 THR A 312 ASN A 322 1 11 HELIX 17 17 LEU A 332 LEU A 335 5 4 HELIX 18 18 ALA A 362 TRP A 365 5 4 HELIX 19 19 ARG A 388 GLY A 390 5 3 HELIX 20 20 GLN A 393 THR A 406 1 14 SHEET 1 A 9 THR A 422 ILE A 424 0 SHEET 2 A 9 ILE A 410 SER A 414 -1 N ILE A 413 O MET A 423 SHEET 3 A 9 GLY A 326 THR A 330 1 N PHE A 327 O ASP A 411 SHEET 4 A 9 TYR A 261 LYS A 267 1 N GLY A 264 O GLY A 326 SHEET 5 A 9 ASN A 3 GLY A 8 1 N VAL A 5 O TYR A 261 SHEET 6 A 9 VAL A 218 GLU A 221 1 N VAL A 218 O VAL A 4 SHEET 7 A 9 TYR A 29 ARG A 32 1 N TYR A 29 O MET A 219 SHEET 8 A 9 THR A 65 ILE A 68 1 N THR A 65 O VAL A 30 SHEET 9 A 9 LEU A 97 LEU A 99 1 N LEU A 98 O SER A 66 SHEET 1 B 2 HIS A 41 ILE A 45 0 SHEET 2 B 2 GLU A 48 LEU A 52 -1 N LEU A 52 O HIS A 41 SHEET 1 C 2 SER A 270 ARG A 272 0 SHEET 2 C 2 ARG A 306 GLY A 308 -1 N GLY A 308 O SER A 270 SHEET 1 D 2 GLU A 340 ARG A 348 0 SHEET 2 D 2 GLU A 369 PRO A 376 -1 N MET A 375 O VAL A 341 LINK OD1 ASP A 13 MG MG A 434 1555 1555 2.47 LINK O GLY A 40 MG MG A 434 1555 1555 2.04 LINK O1A GPX A 432 MG MG A 434 1555 1555 2.29 LINK O2B GPX A 432 MG MG A 434 1555 1555 2.10 LINK O2 NO3 A 433 MG MG A 434 1555 1555 2.30 LINK MG MG A 434 O HDA A 437 1555 1555 2.19 CISPEP 1 TYR A 235 PRO A 236 0 -0.13 SITE 1 AC1 10 ASP A 13 LYS A 16 ALA A 39 GLY A 40 SITE 2 AC1 10 ALA A 223 GLN A 224 GPX A 432 MG A 434 SITE 3 AC1 10 HDA A 437 IMP A 440 SITE 1 AC2 5 ASP A 13 GLY A 40 GPX A 432 NO3 A 433 SITE 2 AC2 5 HDA A 437 SITE 1 AC3 23 ASP A 13 GLU A 14 GLY A 15 LYS A 16 SITE 2 AC3 23 GLY A 17 GLY A 40 HIS A 41 THR A 42 SITE 3 AC3 23 LYS A 49 ARG A 305 LYS A 331 ASP A 333 SITE 4 AC3 23 SER A 414 GLY A 416 PRO A 417 NO3 A 433 SITE 5 AC3 23 MG A 434 HDA A 437 HOH A 501 HOH A 587 SITE 6 AC3 23 HOH A 605 HOH A 738 HOH A 863 SITE 1 AC4 13 ASP A 13 GLY A 40 THR A 129 GLY A 298 SITE 2 AC4 13 ALA A 299 THR A 300 THR A 301 ARG A 303 SITE 3 AC4 13 ARG A 305 GPX A 432 NO3 A 433 MG A 434 SITE 4 AC4 13 IMP A 440 SITE 1 AC5 20 ASP A 13 ASN A 38 ALA A 39 ILE A 126 SITE 2 AC5 20 GLY A 127 THR A 128 THR A 129 ARG A 143 SITE 3 AC5 20 GLN A 224 VAL A 238 THR A 239 VAL A 273 SITE 4 AC5 20 GLY A 274 ARG A 303 NO3 A 433 HDA A 437 SITE 5 AC5 20 HOH A 546 HOH A 692 HOH A 697 HOH A 702 CRYST1 80.300 80.300 158.200 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 0.012520 0.007230 0.000000 0.00000 SCALE2 0.000000 0.014460 0.000000 0.00000 SCALE3 0.000000 0.000000 0.006310 0.00000