1KP2 - Header Asymmetric Unit

HEADER LIGASE 27-DEC-01 1KP2

TITLE CRYSTAL STRUCTURE OF E. COLI ARGININOSUCCINATE SYNTHETASE IN COMPLEX TITLE 2 WITH ATP

COMPND MOL_ID: 1; COMPND 2 MOLECULE: ARGININOSUCCINATE SYNTHETASE; COMPND 3 CHAIN: A; COMPND 4 EC: 6.3.4.5; COMPND 5 ENGINEERED: YES

SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI; SOURCE 3 ORGANISM_TAXID: 562; SOURCE 4 GENE: ARGG; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 7 EXPRESSION_SYSTEM_STRAIN: BB101; SOURCE 8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 9 EXPRESSION_SYSTEM_PLASMID: PET21B

KEYWDS N-TYPE ATP PYROPHOSPHATASE, LIGASE

EXPDTA X-RAY DIFFRACTION

AUTHOR C.T.LEMKE,P.L.HOWELL

REVDAT 3 13-JUL-11 1KP2 1 VERSN REVDAT 2 24-FEB-09 1KP2 1 VERSN REVDAT 1 17-APR-02 1KP2 0

JRNL AUTH C.T.LEMKE,P.L.HOWELL JRNL TITL SUBSTRATE INDUCED CONFORMATIONAL CHANGES IN JRNL TITL 2 ARGININOSUCCINATE SYNTHETASE JRNL REF J.BIOL.CHEM. V. 277 13074 2002 JRNL REFN ISSN 0021-9258 JRNL PMID 11809762 JRNL DOI 10.1074/JBC.M112436200

REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH C.T.LEMKE,P.L.HOWELL REMARK 1 TITL THE 1.6 A CRYSTAL STRUCTURE OF E. COLI ARGININOSUCCINATE REMARK 1 TITL 2 SYNTHETASE SUGGESTS A CONFORMATIONAL CHANGE DURING REMARK 1 TITL 3 CATALYSIS. REMARK 1 REF STRUCTURE V. 9 1153 2001 REMARK 1 REFN ISSN 0969-2126 REMARK 1 DOI 10.1016/S0969-2126(01)00683-9

REMARK 2 REMARK 2 RESOLUTION. 2.00 ANGSTROMS.

REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CNS 1.0 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 : ENGH & HUBER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.00 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 44.79 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : 561488.120 REMARK 3 DATA CUTOFF LOW (ABS(F)) : 0.0000 REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 95.2 REMARK 3 NUMBER OF REFLECTIONS : 34031 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) : 0.177 REMARK 3 FREE R VALUE : 0.216 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 9.900 REMARK 3 FREE R VALUE TEST SET COUNT : 3360 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : 0.004 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) : 2.00 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.13 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 83.10 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 4406 REMARK 3 BIN R VALUE (WORKING SET) : 0.2500 REMARK 3 BIN FREE R VALUE : 0.2920 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 9.80 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 478 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : 0.013 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 3358 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 50 REMARK 3 SOLVENT ATOMS : 286 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 18.40 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 32.10 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 9.39000 REMARK 3 B22 (A**2) : -1.50000 REMARK 3 B33 (A**2) : -7.89000 REMARK 3 B12 (A**2) : 0.00000 REMARK 3 B13 (A**2) : 0.00000 REMARK 3 B23 (A**2) : 0.00000 REMARK 3 REMARK 3 ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM LUZZATI PLOT (A) : 0.19 REMARK 3 ESD FROM SIGMAA (A) : 0.18 REMARK 3 LOW RESOLUTION CUTOFF (A) : 5.00 REMARK 3 REMARK 3 CROSS-VALIDATED ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM C-V LUZZATI PLOT (A) : 0.24 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.20 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.009 REMARK 3 BOND ANGLES (DEGREES) : 1.50 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 22.70 REMARK 3 IMPROPER ANGLES (DEGREES) : 0.87 REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : RESTRAINED REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. RMS SIGMA REMARK 3 MAIN-CHAIN BOND (A**2) : 1.330 ; 1.500 REMARK 3 MAIN-CHAIN ANGLE (A**2) : 2.090 ; 2.000 REMARK 3 SIDE-CHAIN BOND (A**2) : 2.140 ; 2.000 REMARK 3 SIDE-CHAIN ANGLE (A**2) : 3.120 ; 2.500 REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED : FLAT MODEL REMARK 3 KSOL : 0.38 REMARK 3 BSOL : 54.85 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 : ALL_ASS.PARAM REMARK 3 PARAMETER FILE 5 : NULL REMARK 3 TOPOLOGY FILE 1 : PROTEIN.TOP REMARK 3 TOPOLOGY FILE 2 : WATER_REP.TOP REMARK 3 TOPOLOGY FILE 3 : ION.TOP REMARK 3 TOPOLOGY FILE 4 : ALL_ASS.TOP REMARK 3 TOPOLOGY FILE 5 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL

REMARK 4 REMARK 4 1KP2 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11

REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 04-JAN-02. REMARK 100 THE RCSB ID CODE IS RCSB015189.

REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : NULL REMARK 200 TEMPERATURE (KELVIN) : 100 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 : RIGAKU RU200 REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418 REMARK 200 MONOCHROMATOR : MIRRORS REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : MARRESEARCH REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 34031 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.000 REMARK 200 RESOLUTION RANGE LOW (A) : 45.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 95.2 REMARK 200 DATA REDUNDANCY : 5.700 REMARK 200 R MERGE (I) : 0.06400 REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 15.6000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.00 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.07 REMARK 200 COMPLETENESS FOR SHELL (%) : 86.6 REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : 0.33600 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: CNS REMARK 200 STARTING MODEL: PDB ENTRY 1K92 REMARK 200 REMARK 200 REMARK: NULL

REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 40.00 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.56 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: SODIUM/POSTASSIUM PHOSPHATE, GUANIDINE REMARK 280 HYDROCHLORIDE, MES, PH 6.5, VAPOR DIFFUSION, HANGING DROP, REMARK 280 TEMPERATURE 298K

REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: I 2 2 2 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,Y,-Z REMARK 290 4555 X,-Y,-Z REMARK 290 5555 X+1/2,Y+1/2,Z+1/2 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+1/2 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 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 0.00000 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 39.02950 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 52.02500 REMARK 290 SMTRY3 5 0.000000 0.000000 1.000000 64.28650 REMARK 290 SMTRY1 6 -1.000000 0.000000 0.000000 39.02950 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 52.02500 REMARK 290 SMTRY3 6 0.000000 0.000000 1.000000 64.28650 REMARK 290 SMTRY1 7 -1.000000 0.000000 0.000000 39.02950 REMARK 290 SMTRY2 7 0.000000 1.000000 0.000000 52.02500 REMARK 290 SMTRY3 7 0.000000 0.000000 -1.000000 64.28650 REMARK 290 SMTRY1 8 1.000000 0.000000 0.000000 39.02950 REMARK 290 SMTRY2 8 0.000000 -1.000000 0.000000 52.02500 REMARK 290 SMTRY3 8 0.000000 0.000000 -1.000000 64.28650 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 300 REMARK: THE BIOLOGICAL ASSEMBLY IS A TETRAMER GENERATED FROM THE REMARK 300 MONOMER IN THE ASYMMETRIC UNIT BY THE OPERATIONS: -X,-Y,Z -X,Y,-Z REMARK 300 X,-Y,-Z

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: TETRAMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TETRAMERIC REMARK 350 SOFTWARE USED: PISA,PQS REMARK 350 TOTAL BURIED SURFACE AREA: 39350 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 53780 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -207.0 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 78.05900 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 350 BIOMT1 3 -1.000000 0.000000 0.000000 78.05900 REMARK 350 BIOMT2 3 0.000000 1.000000 0.000000 0.00000 REMARK 350 BIOMT3 3 0.000000 0.000000 -1.000000 128.57300 REMARK 350 BIOMT1 4 1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT2 4 0.000000 -1.000000 0.000000 0.00000 REMARK 350 BIOMT3 4 0.000000 0.000000 -1.000000 128.57300

REMARK 375 REMARK 375 SPECIAL POSITION REMARK 375 THE FOLLOWING ATOMS ARE FOUND TO BE WITHIN 0.15 ANGSTROMS REMARK 375 OF A SYMMETRY RELATED ATOM AND ARE ASSUMED TO BE ON SPECIAL REMARK 375 POSITIONS. REMARK 375 REMARK 375 ATOM RES CSSEQI REMARK 375 HOH A 463 LIES ON A SPECIAL POSITION.

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 LYS A 183 REMARK 465 MET A 184 REMARK 465 SER A 185 REMARK 465 VAL A 186 REMARK 465 LEU A 386 REMARK 465 THR A 387 REMARK 465 MET A 388 REMARK 465 GLU A 389 REMARK 465 LYS A 390 REMARK 465 GLY A 391 REMARK 465 ASP A 392 REMARK 465 SER A 393 REMARK 465 LYS A 444 REMARK 465 GLY A 445 REMARK 465 GLN A 446 REMARK 465 SER A 447 REMARK 465 VAL A 448 REMARK 465 GLU A 449 REMARK 465 HIS A 450 REMARK 465 HIS A 451 REMARK 465 HIS A 452 REMARK 465 HIS A 453 REMARK 465 HIS A 454 REMARK 465 HIS A 455

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 A 5 CG CD CE NZ REMARK 470 ASP A 22 CG OD1 OD2 REMARK 470 TYR A 182 CG CD1 CD2 CE1 CE2 CZ OH REMARK 470 GLU A 187 CG CD OE1 OE2 REMARK 470 LYS A 230 CG CD CE NZ REMARK 470 GLU A 317 CG CD OE1 OE2 REMARK 470 SER A 430 OG

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 A 732 O HOH A 732 4556 1.18 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 ASP A 163 -80.47 -55.50 REMARK 500 GLU A 164 -74.28 -56.31 REMARK 500 ASP A 181 -87.86 -67.03 REMARK 500 ALA A 203 179.28 71.29 REMARK 500 LYS A 204 -126.67 53.79 REMARK 500 ALA A 293 62.84 -173.36 REMARK 500 VAL A 351 -61.39 -103.18 REMARK 500 ARG A 364 -110.22 -118.36 REMARK 500 GLU A 384 41.30 36.32 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 A 718 DISTANCE = 5.54 ANGSTROMS REMARK 525 HOH A 738 DISTANCE = 5.23 ANGSTROMS

REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE PO4 A 456 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE PO4 A 457 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE PO4 A 458 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ATP A 459 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC5 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE GAI A 460

REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1K92 RELATED DB: PDB REMARK 900 1K92 IS E. COLI ARGININOSUCCINATE SYNTHETASE REMARK 900 RELATED ID: 1K97 RELATED DB: PDB REMARK 900 1K97 IS E. COLI ARGININOSUCCINATE SYNTHETASE IN COMPLEX REMARK 900 WITH CITRULLINE AND ASPARTATE REMARK 900 RELATED ID: 1KP3 RELATED DB: PDB REMARK 900 1KP3 IS THE CRYSTAL STRUCTURE OF E. COLI ARGININOSUCCINATE REMARK 900 SYNTHETASE IN COMPLEX WITH ATP AND CITRULLINE.

DBREF 1KP2 A 1 446 UNP P0A6E4 ASSY_ECOLI 1 446

SEQADV 1KP2 SER A 447 UNP P0A6E4 EXPRESSION TAG SEQADV 1KP2 VAL A 448 UNP P0A6E4 EXPRESSION TAG SEQADV 1KP2 GLU A 449 UNP P0A6E4 EXPRESSION TAG SEQADV 1KP2 HIS A 450 UNP P0A6E4 EXPRESSION TAG SEQADV 1KP2 HIS A 451 UNP P0A6E4 EXPRESSION TAG SEQADV 1KP2 HIS A 452 UNP P0A6E4 EXPRESSION TAG SEQADV 1KP2 HIS A 453 UNP P0A6E4 EXPRESSION TAG SEQADV 1KP2 HIS A 454 UNP P0A6E4 EXPRESSION TAG SEQADV 1KP2 HIS A 455 UNP P0A6E4 EXPRESSION TAG

SEQRES 1 A 455 THR THR ILE LEU LYS HIS LEU PRO VAL GLY GLN ARG ILE SEQRES 2 A 455 GLY ILE ALA PHE SER GLY GLY LEU ASP THR SER ALA ALA SEQRES 3 A 455 LEU LEU TRP MET ARG GLN LYS GLY ALA VAL PRO TYR ALA SEQRES 4 A 455 TYR THR ALA ASN LEU GLY GLN PRO ASP GLU GLU ASP TYR SEQRES 5 A 455 ASP ALA ILE PRO ARG ARG ALA MET GLU TYR GLY ALA GLU SEQRES 6 A 455 ASN ALA ARG LEU ILE ASP CYS ARG LYS GLN LEU VAL ALA SEQRES 7 A 455 GLU GLY ILE ALA ALA ILE GLN CYS GLY ALA PHE HIS ASN SEQRES 8 A 455 THR THR GLY GLY LEU THR TYR PHE ASN THR THR PRO LEU SEQRES 9 A 455 GLY ARG ALA VAL THR GLY THR MET LEU VAL ALA ALA MET SEQRES 10 A 455 LYS GLU ASP GLY VAL ASN ILE TRP GLY ASP GLY SER THR SEQRES 11 A 455 TYR LYS GLY ASN ASP ILE GLU ARG PHE TYR ARG TYR GLY SEQRES 12 A 455 LEU LEU THR ASN ALA GLU LEU GLN ILE TYR LYS PRO TRP SEQRES 13 A 455 LEU ASP THR ASP PHE ILE ASP GLU LEU GLY GLY ARG HIS SEQRES 14 A 455 GLU MET SER GLU PHE MET ILE ALA CYS GLY PHE ASP TYR SEQRES 15 A 455 LYS MET SER VAL GLU LYS ALA TYR SER THR ASP SER ASN SEQRES 16 A 455 MET LEU GLY ALA THR HIS GLU ALA LYS ASP LEU GLU TYR SEQRES 17 A 455 LEU ASN SER SER VAL LYS ILE VAL ASN PRO ILE MET GLY SEQRES 18 A 455 VAL LYS PHE TRP ASP GLU SER VAL LYS ILE PRO ALA GLU SEQRES 19 A 455 GLU VAL THR VAL ARG PHE GLU GLN GLY HIS PRO VAL ALA SEQRES 20 A 455 LEU ASN GLY LYS THR PHE SER ASP ASP VAL GLU MET MET SEQRES 21 A 455 LEU GLU ALA ASN ARG ILE GLY GLY ARG HIS GLY LEU GLY SEQRES 22 A 455 MET SER ASP GLN ILE GLU ASN ARG ILE ILE GLU ALA LYS SEQRES 23 A 455 SER ARG GLY ILE TYR GLU ALA PRO GLY MET ALA LEU LEU SEQRES 24 A 455 HIS ILE ALA TYR GLU ARG LEU LEU THR GLY ILE HIS ASN SEQRES 25 A 455 GLU ASP THR ILE GLU GLN TYR HIS ALA HIS GLY ARG GLN SEQRES 26 A 455 LEU GLY ARG LEU LEU TYR GLN GLY ARG TRP PHE ASP SER SEQRES 27 A 455 GLN ALA LEU MET LEU ARG ASP SER LEU GLN ARG TRP VAL SEQRES 28 A 455 ALA SER GLN ILE THR GLY GLU VAL THR LEU GLU LEU ARG SEQRES 29 A 455 ARG GLY ASN ASP TYR SER ILE LEU ASN THR VAL SER GLU SEQRES 30 A 455 ASN LEU THR TYR LYS PRO GLU ARG LEU THR MET GLU LYS SEQRES 31 A 455 GLY ASP SER VAL PHE SER PRO ASP ASP ARG ILE GLY GLN SEQRES 32 A 455 LEU THR MET ARG ASN LEU ASP ILE THR ASP THR ARG GLU SEQRES 33 A 455 LYS LEU PHE GLY TYR ALA LYS THR GLY LEU LEU SER SER SEQRES 34 A 455 SER ALA ALA SER GLY VAL PRO GLN VAL GLU ASN LEU GLU SEQRES 35 A 455 ASN LYS GLY GLN SER VAL GLU HIS HIS HIS HIS HIS HIS

HET PO4 A 456 5 HET PO4 A 457 5 HET PO4 A 458 5 HET ATP A 459 31 HET GAI A 460 4

HETNAM PO4 PHOSPHATE ION HETNAM ATP ADENOSINE-5'-TRIPHOSPHATE HETNAM GAI GUANIDINE

FORMUL 2 PO4 3(O4 P 3-) FORMUL 5 ATP C10 H16 N5 O13 P3 FORMUL 6 GAI C H5 N3 FORMUL 7 HOH *286(H2 O)

HELIX 1 1 GLY A 20 LYS A 33 1 14 HELIX 2 2 ASP A 53 TYR A 62 1 10 HELIX 3 3 CYS A 72 GLY A 87 1 16 HELIX 4 4 ASN A 100 ASP A 120 1 21 HELIX 5 5 ASN A 134 ASN A 147 1 14 HELIX 6 6 PRO A 155 LEU A 157 5 3 HELIX 7 7 ASP A 158 LEU A 165 1 8 HELIX 8 8 GLY A 167 CYS A 178 1 12 HELIX 9 9 LYS A 204 TYR A 208 5 5 HELIX 10 10 SER A 212 VAL A 216 5 5 HELIX 11 11 ASP A 255 ARG A 269 1 15 HELIX 12 12 ALA A 293 HIS A 311 1 19 HELIX 13 13 ASN A 312 GLN A 332 1 21 HELIX 14 14 ASP A 337 VAL A 351 1 15 HELIX 15 15 ALA A 352 ILE A 355 5 4 HELIX 16 16 SER A 396 MET A 406 1 11 HELIX 17 17 ARG A 407 THR A 424 1 18

SHEET 1 A 6 ILE A 3 LEU A 4 0 SHEET 2 A 6 GLN A 151 TYR A 153 1 O ILE A 152 N LEU A 4 SHEET 3 A 6 ILE A 124 GLY A 126 1 N TRP A 125 O TYR A 153 SHEET 4 A 6 ARG A 12 ALA A 16 1 N GLY A 14 O ILE A 124 SHEET 5 A 6 VAL A 36 ASN A 43 1 O TYR A 38 N ILE A 13 SHEET 6 A 6 ALA A 67 ASP A 71 1 O ILE A 70 N THR A 41 SHEET 1 B 2 THR A 92 THR A 93 0 SHEET 2 B 2 LEU A 96 THR A 97 -1 O LEU A 96 N THR A 93 SHEET 1 C 4 SER A 191 ASN A 195 0 SHEET 2 C 4 GLY A 198 GLU A 202 -1 O GLU A 202 N SER A 191 SHEET 3 C 4 LYS A 286 GLU A 292 -1 O GLU A 292 N ALA A 199 SHEET 4 C 4 SER A 275 ASN A 280 -1 N GLU A 279 O SER A 287 SHEET 1 D 4 HIS A 244 LEU A 248 0 SHEET 2 D 4 GLU A 234 GLU A 241 -1 N ARG A 239 O ALA A 247 SHEET 3 D 4 GLY A 357 LEU A 363 -1 O LEU A 363 N GLU A 234 SHEET 4 D 4 TYR A 369 VAL A 375 -1 O LEU A 372 N THR A 360

SITE 1 AC1 10 TYR A 98 THR A 102 PRO A 103 ASN A 134 SITE 2 AC1 10 ARG A 138 GLU A 202 GLU A 279 TYR A 291 SITE 3 AC1 10 TYR A 331 HOH A 499 SITE 1 AC2 5 SER A 18 GLY A 20 ASP A 22 THR A 23 SITE 2 AC2 5 ATP A 459 SITE 1 AC3 3 GLU A 262 ARG A 269 HOH A 726 SITE 1 AC4 15 ALA A 16 TYR A 40 ALA A 42 ASP A 127 SITE 2 AC4 15 GLY A 128 SER A 129 THR A 130 ASP A 135 SITE 3 AC4 15 PHE A 139 ASP A 193 PO4 A 457 HOH A 559 SITE 4 AC4 15 HOH A 632 HOH A 642 HOH A 741 SITE 1 AC5 6 MET A 60 ALA A 64 GLU A 65 ASN A 210 SITE 2 AC5 6 SER A 211 HOH A 745

CRYST1 78.059 104.050 128.573 90.00 90.00 90.00 I 2 2 2 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 0.012811 0.000000 0.000000 0.00000

SCALE2 0.000000 0.009611 0.000000 0.00000

SCALE3 0.000000 0.000000 0.007778 0.00000