HEADER LIGASE 30-JAN-03 1OBD TITLE SAICAR-SYNTHASE COMPLEXED WITH ATP COMPND MOL_ID: 1; COMPND 2 MOLECULE: PHOSPHORIBOSYLAMIDOIMIDAZOLE- SUCCINOCARBOXAMIDE SYNTHASE; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: SAICAR SYNTHETASE; COMPND 5 EC: 6.3.2.6 SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: SACCHAROMYCES CEREVISIAE; SOURCE 3 ORGANISM_COMMON: BAKER'S YEAST; SOURCE 4 ORGANISM_TAXID: 4932 KEYWDS SYNTHETASE, ATP BINDING PROTEIN, KEYWDS 2 PHOSPHORIBOSYLAMINOIMIDAZOLESUCCINOCARBOXAMIDE (SAICAR) SYNTHASE, KEYWDS 3 PURINE BIOSYNTHESIS, LIGASE EXPDTA X-RAY DIFFRACTION AUTHOR S.V.ANTONYUK,A.I.GREBENKO,V.M.LEVDIKOV,D.V.URUSOVA,W.R.MELIK-ADAMYAN, AUTHOR 2 V.S.LAMZIN,K.WILSON REVDAT 6 20-NOV-24 1OBD 1 REMARK REVDAT 5 13-DEC-23 1OBD 1 REMARK LINK REVDAT 4 24-JUL-19 1OBD 1 REMARK REVDAT 3 08-MAY-19 1OBD 1 REMARK LINK REVDAT 2 24-FEB-09 1OBD 1 VERSN REVDAT 1 06-MAR-03 1OBD 0 JRNL AUTH S.V.ANTONYUK,A.I.GREBENKO,V.M.LEVDIKOV,D.V.URUSOVA, JRNL AUTH 2 W.R.MELIK-ADAMYAN,V.S.LAMZIN,K.WILSON JRNL TITL X-RAY STRUCTURE OF SAICAR-SYNTHASE COMPLEXED WITH ATP JRNL REF KRISTALLOGRAFIYA V. 46 620 2001 JRNL REFN ISSN 0023-4761 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH V.M.LEVDIKOV,V.V.BARYNIN,A.I.GREBENKO,W.R.MELIK-ADAMYAN, REMARK 1 AUTH 2 V.S.LAMZIN,K.S.WILSON REMARK 1 TITL THE STRUCTURE OF SAICAR SYNTHASE: AN ENZYME IN THE DE NOVO REMARK 1 TITL 2 PATHWAY OF PURINE NUCLEOTIDE BIOSYNTHESIS REMARK 1 REF STRUCTURE V. 6 363 1998 REMARK 1 REFN ISSN 0969-2126 REMARK 1 PMID 9551557 REMARK 1 DOI 10.1016/S0969-2126(98)00038-0 REMARK 2 REMARK 2 RESOLUTION. 1.40 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC REMARK 3 AUTHORS : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER, REMARK 3 : NICHOLLS,WINN,LONG,VAGIN REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.40 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 30.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : NULL REMARK 3 COMPLETENESS FOR RANGE (%) : 97.0 REMARK 3 NUMBER OF REFLECTIONS : 53449 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) : 0.156 REMARK 3 R VALUE (WORKING SET) : 0.152 REMARK 3 FREE R VALUE : 0.195 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 10.100 REMARK 3 FREE R VALUE TEST SET COUNT : 5989 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 2381 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 66 REMARK 3 SOLVENT ATOMS : 526 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 16.60 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 15.90 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 0.22000 REMARK 3 B22 (A**2) : -0.70000 REMARK 3 B33 (A**2) : 0.48000 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 OVERALL COORDINATE ERROR. REMARK 3 ESU BASED ON R VALUE (A): 0.077 REMARK 3 ESU BASED ON FREE R VALUE (A): 0.069 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.033 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 0.775 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 DISTANCE RESTRAINTS. RMS SIGMA REMARK 3 BOND LENGTH (A) : NULL ; NULL REMARK 3 ANGLE DISTANCE (A) : NULL ; NULL REMARK 3 INTRAPLANAR 1-4 DISTANCE (A) : NULL ; NULL REMARK 3 H-BOND OR METAL COORDINATION (A) : NULL ; NULL REMARK 3 REMARK 3 PLANE RESTRAINT (A) : NULL ; NULL REMARK 3 CHIRAL-CENTER RESTRAINT (A**3) : NULL ; NULL REMARK 3 REMARK 3 NON-BONDED CONTACT RESTRAINTS. REMARK 3 SINGLE TORSION (A) : NULL ; NULL REMARK 3 MULTIPLE TORSION (A) : NULL ; NULL REMARK 3 H-BOND (X...Y) (A) : NULL ; NULL REMARK 3 H-BOND (X-H...Y) (A) : NULL ; NULL REMARK 3 REMARK 3 CONFORMATIONAL TORSION ANGLE RESTRAINTS. REMARK 3 SPECIFIED (DEGREES) : NULL ; NULL REMARK 3 PLANAR (DEGREES) : NULL ; NULL REMARK 3 STAGGERED (DEGREES) : NULL ; NULL REMARK 3 TRANSVERSE (DEGREES) : NULL ; 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 OTHER REFINEMENT REMARKS: HYDROGENS HAVE BEEN ADDED IN THE RIDING REMARK 3 POSITIONS REMARK 4 REMARK 4 1OBD COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 30-JAN-03. REMARK 100 THE DEPOSITION ID IS D_1290012068. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 15-FEB-98 REMARK 200 TEMPERATURE (KELVIN) : 100.0 REMARK 200 PH : 7.50 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : EMBL/DESY, HAMBURG REMARK 200 BEAMLINE : X11 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.906 REMARK 200 MONOCHROMATOR : NULL 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 : 59985 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.400 REMARK 200 RESOLUTION RANGE LOW (A) : 30.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 97.0 REMARK 200 DATA REDUNDANCY : 3.500 REMARK 200 R MERGE (I) : 0.08500 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 17.0000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.40 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.42 REMARK 200 COMPLETENESS FOR SHELL (%) : 97.4 REMARK 200 DATA REDUNDANCY IN SHELL : 3.50 REMARK 200 R MERGE FOR SHELL (I) : 0.19000 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 7.000 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: NULL REMARK 200 STARTING MODEL: PDB ENTRY 1A48 REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 44.80 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.20 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: THE HANGING DROPS CONTAINED PROTEIN AT REMARK 280 A CONCENTRATION OF 8 - 15 MG/ML, 50 MM TRIS-HCL BUFFER, PH 7.0, REMARK 280 40 MM ASPARTIC ACID AND 1.0 - 1.25 M AMMONIUM SULPHATE. THE WELL REMARK 280 CONTAINED THE SAME ABOVE BUFFER PLUS 2.25 M AMMONIUM SULPHATE, REMARK 280 PH 7.50, VAPOR DIFFUSION, HANGING DROP REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 21 21 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X+1/2,-Y,Z+1/2 REMARK 290 3555 -X,Y+1/2,-Z+1/2 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 30.74000 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 39.91000 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 31.52500 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 39.91000 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 30.74000 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 31.52500 REMARK 290 SMTRY3 4 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 SOFTWARE DETERMINED QUATERNARY STRUCTURE: MONOMERIC 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 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 GLU A 166 REMARK 465 GLN A 167 REMARK 465 GLY A 168 REMARK 465 GLU A 169 REMARK 465 HIS A 170 REMARK 465 SER A 305 REMARK 465 HIS A 306 REMARK 480 REMARK 480 ZERO OCCUPANCY ATOM REMARK 480 THE FOLLOWING RESIDUES HAVE ATOMS MODELED WITH ZERO REMARK 480 OCCUPANCY. THE LOCATION AND PROPERTIES OF THESE ATOMS REMARK 480 MAY NOT BE RELIABLE. (M=MODEL NUMBER; RES=RESIDUE NAME; REMARK 480 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE): REMARK 480 M RES C SSEQI ATOMS REMARK 480 LYS A 131 CD CE NZ REMARK 480 LYS A 135 CG CD CE REMARK 480 LYS A 143 NZ REMARK 480 LYS A 303 CD CE NZ 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 NZ LYS A 303 O HOH A 2502 0.64 REMARK 500 CE LYS A 303 O HOH A 2502 0.88 REMARK 500 CD LYS A 303 O HOH A 2502 2.09 REMARK 500 CD LYS A 131 O HOH A 2267 2.13 REMARK 500 O HOH A 2240 O HOH A 2243 2.18 REMARK 500 OE1 GLU A 156 O HOH A 2309 2.19 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 LYS A 135 CB LYS A 135 CG -0.173 REMARK 500 LYS A 135 CE LYS A 135 NZ 1.984 REMARK 500 LYS A 143 CE LYS A 143 NZ -0.449 REMARK 500 LYS A 303 CG LYS A 303 CD -0.359 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 ARG A 17 NE - CZ - NH1 ANGL. DEV. = -3.7 DEGREES REMARK 500 ARG A 17 NE - CZ - NH2 ANGL. DEV. = 3.6 DEGREES REMARK 500 ASP A 22 CB - CG - OD2 ANGL. DEV. = 6.2 DEGREES REMARK 500 ASP A 43 CB - CG - OD2 ANGL. DEV. = 6.0 DEGREES REMARK 500 ASP A 78 CB - CA - C ANGL. DEV. = 17.4 DEGREES REMARK 500 ASP A 78 CB - CA - C ANGL. DEV. = -16.3 DEGREES REMARK 500 ASP A 78 CB - CG - OD2 ANGL. DEV. = 6.0 DEGREES REMARK 500 LYS A 135 CA - CB - CG ANGL. DEV. = 13.9 DEGREES REMARK 500 LYS A 135 CD - CE - NZ ANGL. DEV. = -16.0 DEGREES REMARK 500 LYS A 135 CD - CE - NZ ANGL. DEV. = -41.9 DEGREES REMARK 500 LYS A 143 CD - CE - NZ ANGL. DEV. = 22.1 DEGREES REMARK 500 ASP A 259 CB - CG - OD2 ANGL. DEV. = 7.6 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 ASP A 104 -4.97 72.25 REMARK 500 VAL A 232 -167.74 -127.62 REMARK 500 ASP A 233 -149.50 54.19 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 A2007 DISTANCE = 6.72 ANGSTROMS REMARK 525 HOH A2008 DISTANCE = 7.10 ANGSTROMS REMARK 525 HOH A2017 DISTANCE = 5.92 ANGSTROMS REMARK 525 HOH A2027 DISTANCE = 6.66 ANGSTROMS REMARK 525 HOH A2060 DISTANCE = 6.52 ANGSTROMS REMARK 525 HOH A2127 DISTANCE = 6.08 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 MG A 311 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 SER A 61 OG REMARK 620 2 SER A 61 OG 38.2 REMARK 620 3 GLU A 234 OE2 140.2 110.2 REMARK 620 4 VAL A 235 N 81.8 93.5 133.5 REMARK 620 5 HOH A2150 O 65.6 88.8 98.6 122.0 REMARK 620 N 1 2 3 4 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 MG A 310 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ATP A 307 O2A REMARK 620 2 ATP A 307 O2G 92.3 REMARK 620 3 ATP A 307 O2B 85.0 88.0 REMARK 620 4 HOH A2397 O 91.1 176.3 93.6 REMARK 620 N 1 2 3 REMARK 700 REMARK 700 SHEET REMARK 700 THE SHEET STRUCTURE OF THIS MOLECULE IS BIFURCATED. IN REMARK 700 ORDER TO REPRESENT THIS FEATURE IN THE SHEET RECORDS BELOW, REMARK 700 TWO SHEETS ARE DEFINED. REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 308 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 309 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG A 310 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG A 311 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC5 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ATP A 307 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC6 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE AMP A 315 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1A48 RELATED DB: PDB REMARK 900 SAICAR SYNTHASE DBREF 1OBD A 2 306 UNP P27616 PUR7_YEAST 2 306 SEQRES 1 A 306 ACE SER ILE THR LYS THR GLU LEU ASP GLY ILE LEU PRO SEQRES 2 A 306 LEU VAL ALA ARG GLY LYS VAL ARG ASP ILE TYR GLU VAL SEQRES 3 A 306 ASP ALA GLY THR LEU LEU PHE VAL ALA THR ASP ARG ILE SEQRES 4 A 306 SER ALA TYR ASP VAL ILE MET GLU ASN SER ILE PRO GLU SEQRES 5 A 306 LYS GLY ILE LEU LEU THR LYS LEU SER GLU PHE TRP PHE SEQRES 6 A 306 LYS PHE LEU SER ASN ASP VAL ARG ASN HIS LEU VAL ASP SEQRES 7 A 306 ILE ALA PRO GLY LYS THR ILE PHE ASP TYR LEU PRO ALA SEQRES 8 A 306 LYS LEU SER GLU PRO LYS TYR LYS THR GLN LEU GLU ASP SEQRES 9 A 306 ARG SER LEU LEU VAL HIS LYS HIS LYS LEU ILE PRO LEU SEQRES 10 A 306 GLU VAL ILE VAL ARG GLY TYR ILE THR GLY SER ALA TRP SEQRES 11 A 306 LYS GLU TYR VAL LYS THR GLY THR VAL HIS GLY LEU LYS SEQRES 12 A 306 GLN PRO GLN GLY LEU LYS GLU SER GLN GLU PHE PRO GLU SEQRES 13 A 306 PRO ILE PHE THR PRO SER THR LYS ALA GLU GLN GLY GLU SEQRES 14 A 306 HIS ASP GLU ASN ILE SER PRO ALA GLN ALA ALA GLU LEU SEQRES 15 A 306 VAL GLY GLU ASP LEU SER ARG ARG VAL ALA GLU LEU ALA SEQRES 16 A 306 VAL LYS LEU TYR SER LYS CYS LYS ASP TYR ALA LYS GLU SEQRES 17 A 306 LYS GLY ILE ILE ILE ALA ASP THR LYS PHE GLU PHE GLY SEQRES 18 A 306 ILE ASP GLU LYS THR ASN GLU ILE ILE LEU VAL ASP GLU SEQRES 19 A 306 VAL LEU THR PRO ASP SER SER ARG PHE TRP ASN GLY ALA SEQRES 20 A 306 SER TYR LYS VAL GLY GLU SER GLN ASP SER TYR ASP LYS SEQRES 21 A 306 GLN PHE LEU ARG ASP TRP LEU THR ALA ASN LYS LEU ASN SEQRES 22 A 306 GLY VAL ASN GLY VAL LYS MET PRO GLN ASP ILE VAL ASP SEQRES 23 A 306 ARG THR ARG ALA LYS TYR ILE GLU ALA TYR GLU THR LEU SEQRES 24 A 306 THR GLY SER LYS TRP SER HIS HET ACE A 1 3 HET ATP A 307 31 HET SO4 A 308 5 HET SO4 A 309 5 HET MG A 310 1 HET MG A 311 1 HET AMP A 315 23 HETNAM ACE ACETYL GROUP HETNAM ATP ADENOSINE-5'-TRIPHOSPHATE HETNAM SO4 SULFATE ION HETNAM MG MAGNESIUM ION HETNAM AMP ADENOSINE MONOPHOSPHATE FORMUL 1 ACE C2 H4 O FORMUL 2 ATP C10 H16 N5 O13 P3 FORMUL 3 SO4 2(O4 S 2-) FORMUL 5 MG 2(MG 2+) FORMUL 7 AMP C10 H14 N5 O7 P FORMUL 8 HOH *526(H2 O) HELIX 1 1 GLU A 52 LEU A 68 1 17 HELIX 2 2 THR A 84 LEU A 89 5 6 HELIX 3 3 PRO A 90 SER A 94 5 5 HELIX 4 4 GLU A 95 GLU A 103 1 9 HELIX 5 5 THR A 126 GLY A 137 1 12 HELIX 6 6 SER A 175 GLY A 184 1 10 HELIX 7 7 GLY A 184 LYS A 209 1 26 HELIX 8 8 LYS A 260 ASN A 270 1 11 HELIX 9 9 PRO A 281 GLY A 301 1 21 SHEET 1 AA 4 LEU A 14 ARG A 17 0 SHEET 2 AA 4 ARG A 21 ASP A 27 -1 O ILE A 23 N VAL A 15 SHEET 3 AA 4 THR A 30 ALA A 35 -1 O THR A 30 N VAL A 26 SHEET 4 AA 4 SER A 106 HIS A 110 -1 O LEU A 107 N PHE A 33 SHEET 1 AB 2 SER A 40 ALA A 41 0 SHEET 2 AB 2 VAL A 44 ILE A 45 -1 O VAL A 44 N ALA A 41 SHEET 1 AC 4 LYS A 113 LEU A 114 0 SHEET 2 AC 4 GLU A 228 VAL A 232 0 SHEET 3 AC 4 ILE A 211 ASP A 223 -1 O GLU A 219 N VAL A 232 SHEET 4 AC 4 LYS A 113 LEU A 114 -1 O LYS A 113 N ILE A 222 SHEET 1 AD 5 ARG A 73 ASN A 74 0 SHEET 2 AD 5 GLU A 228 VAL A 232 1 O ILE A 229 N ARG A 73 SHEET 3 AD 5 ILE A 211 ASP A 223 -1 O GLU A 219 N VAL A 232 SHEET 4 AD 5 VAL A 119 TYR A 124 -1 O VAL A 119 N PHE A 218 SHEET 5 AD 5 GLU A 153 PHE A 159 -1 N PHE A 154 O GLY A 123 SHEET 1 AE 2 THR A 138 VAL A 139 0 SHEET 2 AE 2 LEU A 142 LYS A 143 -1 O LEU A 142 N VAL A 139 SHEET 1 AF 2 SER A 162 THR A 163 0 SHEET 2 AF 2 GLU A 172 ASN A 173 -1 O GLU A 172 N THR A 163 LINK C ACE A 1 N SER A 2 1555 1555 1.31 LINK OG BSER A 61 MG MG A 311 1555 1555 2.36 LINK OG ASER A 61 MG MG A 311 1555 1555 2.06 LINK OE2 GLU A 234 MG MG A 311 1555 1555 2.19 LINK N VAL A 235 MG MG A 311 1555 1555 2.76 LINK O2A ATP A 307 MG MG A 310 1555 1555 2.02 LINK O2G ATP A 307 MG MG A 310 1555 1555 1.99 LINK O2B ATP A 307 MG MG A 310 1555 1555 2.18 LINK MG MG A 310 O HOH A2397 1555 1555 1.92 LINK MG MG A 311 O HOH A2150 1555 1555 2.67 SITE 1 AC1 6 ARG A 122 GLY A 127 SER A 128 ARG A 242 SITE 2 AC1 6 HOH A2323 HOH A2519 SITE 1 AC2 9 ARG A 73 ASN A 74 ASP A 78 HIS A 110 SITE 2 AC2 9 HOH A2183 HOH A2520 HOH A2521 HOH A2522 SITE 3 AC2 9 HOH A2523 SITE 1 AC3 2 ATP A 307 HOH A2397 SITE 1 AC4 4 SER A 61 GLU A 234 VAL A 235 HOH A2150 SITE 1 AC5 25 GLY A 18 LYS A 19 ARG A 21 ILE A 23 SITE 2 AC5 25 LEU A 31 PHE A 33 HIS A 75 HIS A 110 SITE 3 AC5 25 HIS A 112 LYS A 143 GLU A 219 VAL A 232 SITE 4 AC5 25 ASP A 233 MG A 310 HOH A2397 HOH A2508 SITE 5 AC5 25 HOH A2509 HOH A2510 HOH A2511 HOH A2512 SITE 6 AC5 25 HOH A2513 HOH A2514 HOH A2515 HOH A2516 SITE 7 AC5 25 HOH A2517 SITE 1 AC6 10 GLU A 62 VAL A 77 ILE A 79 ILE A 85 SITE 2 AC6 10 SER A 106 LEU A 107 LEU A 108 HOH A2524 SITE 3 AC6 10 HOH A2525 HOH A2526 CRYST1 61.480 63.050 79.820 90.00 90.00 90.00 P 21 21 21 4 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 0.016265 0.000000 0.000000 0.00000 SCALE2 0.000000 0.015860 0.000000 0.00000 SCALE3 0.000000 0.000000 0.012528 0.00000 HETATM 1 C ACE A 1 16.511 44.922 -3.042 1.00 20.87 C ANISOU 1 C ACE A 1 2727 2471 2728 -123 0 95 C HETATM 2 O ACE A 1 16.539 44.168 -2.048 1.00 23.37 O ANISOU 2 O ACE A 1 3173 2709 2997 -204 28 101 O HETATM 3 CH3 ACE A 1 17.333 46.193 -3.142 1.00 22.17 C ANISOU 3 CH3 ACE A 1 2833 2663 2926 -287 32 59 C