HEADER TRANSFERASE 18-DEC-10 3Q1X TITLE CRYSTAL STRUCTURE OF ENTAMOEBA HISTOLYTICA SERINE ACETYLTRANSFERASE 1 TITLE 2 IN COMPLEX WITH L-SERINE COMPND MOL_ID: 1; COMPND 2 MOLECULE: SERINE ACETYLTRANSFERASE; COMPND 3 CHAIN: A; COMPND 4 EC: 2.3.1.30; COMPND 5 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ENTAMOEBA HISTOLYTICA; SOURCE 3 ORGANISM_TAXID: 5759; SOURCE 4 STRAIN: HM-1:IMSS; SOURCE 5 GENE: CYSE; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 8 EXPRESSION_SYSTEM_STRAIN: BL21 (DE3); SOURCE 9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 10 EXPRESSION_SYSTEM_PLASMID: PET21C KEYWDS CYSTEINE BIOSYNTHESIS, SERINE ACETYLTRANSFERAS, LEFT HANDED BETA KEYWDS 2 HELIX, ACETYL TRANSFERASE, OASS, TRANSFERASE EXPDTA X-RAY DIFFRACTION AUTHOR S.KUMAR,S.GOURINATH REVDAT 4 01-NOV-23 3Q1X 1 REMARK SEQADV REVDAT 3 08-NOV-17 3Q1X 1 REMARK REVDAT 2 23-FEB-11 3Q1X 1 JRNL REVDAT 1 02-FEB-11 3Q1X 0 JRNL AUTH S.KUMAR,I.RAJ,I.NAGPAL,N.SUBBARAO,S.GOURINATH JRNL TITL STRUCTURAL AND BIOCHEMICAL STUDIES OF SERINE JRNL TITL 2 ACETYLTRANSFERASE REVEAL WHY THE PARASITE ENTAMOEBA JRNL TITL 3 HISTOLYTICA CANNOT FORM CYSTEINE SYNTHASE COMPLEX JRNL REF J.BIOL.CHEM. 2011 JRNL REFN ESSN 1083-351X JRNL PMID 21297164 JRNL DOI 10.1074/JBC.M110.197376 REMARK 2 REMARK 2 RESOLUTION. 1.59 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 REFINEMENT TARGET : MAXIMUM LIKELIHOOD REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.59 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 27.55 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 99.8 REMARK 3 NUMBER OF REFLECTIONS : 38478 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) : 0.162 REMARK 3 R VALUE (WORKING SET) : 0.161 REMARK 3 FREE R VALUE : 0.183 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.000 REMARK 3 FREE R VALUE TEST SET COUNT : 1910 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) : 1.59 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.63 REMARK 3 REFLECTION IN BIN (WORKING SET) : 2659 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 98.16 REMARK 3 BIN R VALUE (WORKING SET) : 0.3010 REMARK 3 BIN FREE R VALUE SET COUNT : 119 REMARK 3 BIN FREE R VALUE : 0.3240 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 2119 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 12 REMARK 3 SOLVENT ATOMS : 106 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 27.91 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 23.92 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : -16.27000 REMARK 3 B22 (A**2) : -16.27000 REMARK 3 B33 (A**2) : 32.55000 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): NULL REMARK 3 ESU BASED ON FREE R VALUE (A): 0.015 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.061 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 2.085 REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : 0.970 REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : 0.959 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES COUNT RMS WEIGHT REMARK 3 BOND LENGTHS REFINED ATOMS (A): 2181 ; 0.008 ; 0.022 REMARK 3 BOND LENGTHS OTHERS (A): NULL ; NULL ; NULL REMARK 3 BOND ANGLES REFINED ATOMS (DEGREES): 2954 ; 1.135 ; 1.942 REMARK 3 BOND ANGLES OTHERS (DEGREES): NULL ; NULL ; NULL REMARK 3 TORSION ANGLES, PERIOD 1 (DEGREES): 266 ; 5.891 ; 5.000 REMARK 3 TORSION ANGLES, PERIOD 2 (DEGREES): 99 ;31.115 ;23.232 REMARK 3 TORSION ANGLES, PERIOD 3 (DEGREES): 364 ;14.233 ;15.000 REMARK 3 TORSION ANGLES, PERIOD 4 (DEGREES): 12 ;14.750 ;15.000 REMARK 3 CHIRAL-CENTER RESTRAINTS (A**3): 325 ; 0.075 ; 0.200 REMARK 3 GENERAL PLANES REFINED ATOMS (A): 1647 ; 0.005 ; 0.021 REMARK 3 GENERAL PLANES OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED CONTACTS REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED CONTACTS OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED TORSION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED TORSION OTHERS (A): NULL ; NULL ; NULL REMARK 3 H-BOND (X...Y) REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 H-BOND (X...Y) OTHERS (A): NULL ; NULL ; NULL REMARK 3 POTENTIAL METAL-ION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 POTENTIAL METAL-ION OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY VDW REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY VDW OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY H-BOND REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY H-BOND OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY METAL-ION REFINED ATOMS (A): NULL ; NULL ; NULL 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): 1326 ; 0.447 ; 1.500 REMARK 3 MAIN-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE REFINED ATOMS (A**2): 2142 ; 0.856 ; 2.000 REMARK 3 MAIN-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN BOND REFINED ATOMS (A**2): 855 ; 1.451 ; 3.000 REMARK 3 SIDE-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE REFINED ATOMS (A**2): 812 ; 2.189 ; 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 TWIN DETAILS REMARK 3 NUMBER OF TWIN DOMAINS : 2 REMARK 3 TWIN DOMAIN : 1 REMARK 3 TWIN OPERATOR : H, K, L REMARK 3 TWIN FRACTION : 0.561 REMARK 3 TWIN DOMAIN : 2 REMARK 3 TWIN OPERATOR : K, H, -L REMARK 3 TWIN FRACTION : 0.439 REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : NULL REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : MASK REMARK 3 PARAMETERS FOR MASK CALCULATION REMARK 3 VDW PROBE RADIUS : 1.40 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 U VALUES: REFINED INDIVIDUALLY REMARK 4 REMARK 4 3Q1X COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 28-DEC-10. REMARK 100 THE DEPOSITION ID IS D_1000063091. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 28-OCT-10 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 8.0 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : ESRF REMARK 200 BEAMLINE : BM14 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : NULL REMARK 200 WAVELENGTH OR RANGE (A) : 0.9537 REMARK 200 MONOCHROMATOR : SI(111) MONOCHROMATOR REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : MARMOSAIC 225 MM CCD REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO, AUTOMAR REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 38478 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.590 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 (%) : NULL REMARK 200 DATA REDUNDANCY : 6.670 REMARK 200 R MERGE (I) : 0.07800 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : NULL REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : NULL REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : NULL REMARK 200 COMPLETENESS FOR SHELL (%) : NULL 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 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: MOLREP REMARK 200 STARTING MODEL: 3P47 REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 40.94 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.08 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: AMMONIUM SULFATE, NACL, TRIS, REMARK 280 GLYCEROL, L-SERINE, PH 8.0, VAPOR DIFFUSION, HANGING DROP, REMARK 280 TEMPERATURE 299K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: H 3 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -Y,X-Y,Z REMARK 290 3555 -X+Y,-X,Z REMARK 290 4555 X+2/3,Y+1/3,Z+1/3 REMARK 290 5555 -Y+2/3,X-Y+1/3,Z+1/3 REMARK 290 6555 -X+Y+2/3,-X+1/3,Z+1/3 REMARK 290 7555 X+1/3,Y+2/3,Z+2/3 REMARK 290 8555 -Y+1/3,X-Y+2/3,Z+2/3 REMARK 290 9555 -X+Y+1/3,-X+2/3,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 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 2 0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 3 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 3 -0.866025 -0.500000 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 55.09500 REMARK 290 SMTRY2 4 0.000000 1.000000 0.000000 31.80911 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 21.10900 REMARK 290 SMTRY1 5 -0.500000 -0.866025 0.000000 55.09500 REMARK 290 SMTRY2 5 0.866025 -0.500000 0.000000 31.80911 REMARK 290 SMTRY3 5 0.000000 0.000000 1.000000 21.10900 REMARK 290 SMTRY1 6 -0.500000 0.866025 0.000000 55.09500 REMARK 290 SMTRY2 6 -0.866025 -0.500000 0.000000 31.80911 REMARK 290 SMTRY3 6 0.000000 0.000000 1.000000 21.10900 REMARK 290 SMTRY1 7 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 7 0.000000 1.000000 0.000000 63.61823 REMARK 290 SMTRY3 7 0.000000 0.000000 1.000000 42.21800 REMARK 290 SMTRY1 8 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 8 0.866025 -0.500000 0.000000 63.61823 REMARK 290 SMTRY3 8 0.000000 0.000000 1.000000 42.21800 REMARK 290 SMTRY1 9 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 9 -0.866025 -0.500000 0.000000 63.61823 REMARK 290 SMTRY3 9 0.000000 0.000000 1.000000 42.21800 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: TRIMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TRIMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 10880 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 26810 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -18.0 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 -0.500000 -0.866025 0.000000 0.00000 REMARK 350 BIOMT2 2 0.866025 -0.500000 0.000000 0.00000 REMARK 350 BIOMT3 2 0.000000 0.000000 1.000000 0.00000 REMARK 350 BIOMT1 3 -0.500000 0.866025 0.000000 0.00000 REMARK 350 BIOMT2 3 -0.866025 -0.500000 0.000000 0.00000 REMARK 350 BIOMT3 3 0.000000 0.000000 1.000000 0.00000 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 S SO4 A 315 LIES ON A SPECIAL POSITION. REMARK 375 O3 SO4 A 315 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 ILE A 268 REMARK 465 SER A 269 REMARK 465 GLU A 270 REMARK 465 HIS A 271 REMARK 465 PRO A 272 REMARK 465 THR A 273 REMARK 465 HIS A 274 REMARK 465 PHE A 275 REMARK 465 VAL A 276 REMARK 465 LYS A 277 REMARK 465 PRO A 278 REMARK 465 CYS A 279 REMARK 465 THR A 280 REMARK 465 THR A 281 REMARK 465 LYS A 282 REMARK 465 GLY A 283 REMARK 465 MET A 284 REMARK 465 LYS A 285 REMARK 465 ASN A 286 REMARK 465 ASP A 287 REMARK 465 THR A 288 REMARK 465 GLU A 289 REMARK 465 ILE A 290 REMARK 465 ILE A 291 REMARK 465 ALA A 292 REMARK 465 ILE A 293 REMARK 465 ILE A 294 REMARK 465 PRO A 295 REMARK 465 SER A 296 REMARK 465 SER A 297 REMARK 465 PRO A 298 REMARK 465 LEU A 299 REMARK 465 ALA A 300 REMARK 465 ASN A 301 REMARK 465 SER A 302 REMARK 465 PRO A 303 REMARK 465 SER A 304 REMARK 465 ILE A 305 REMARK 465 LEU A 306 REMARK 465 GLU A 307 REMARK 465 HIS A 308 REMARK 465 HIS A 309 REMARK 465 HIS A 310 REMARK 465 HIS A 311 REMARK 465 HIS A 312 REMARK 465 HIS A 313 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 33 CG CD CE NZ REMARK 470 LYS A 52 CG CD CE NZ REMARK 470 HIS A 53 CG ND1 CD2 CE1 NE2 REMARK 470 GLU A 211 CG CD OE1 OE2 REMARK 470 TYR A 267 O 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 O HOH A 368 O HOH A 406 2.00 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 CD2 TYR A 6 O HOH A 406 9444 1.68 REMARK 500 CE2 TYR A 6 O HOH A 406 9444 1.75 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 THR A 57 -14.13 -141.26 REMARK 500 GLU A 58 -54.02 93.73 REMARK 500 ASN A 80 -113.33 -130.69 REMARK 500 CYS A 126 2.40 -152.06 REMARK 500 HIS A 180 -68.29 72.48 REMARK 500 THR A 220 153.33 71.30 REMARK 500 ASN A 253 16.95 57.75 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 SER A 314 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 315 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1T3D RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF SERINE ACETYLTRANSFERASE FROM E.COLI AT 2.2A REMARK 900 RELATED ID: 1SSM RELATED DB: PDB REMARK 900 SERINE ACETYLTRANSFERASE- APOENZYME (TRUNCATED) REMARK 900 RELATED ID: 3P1B RELATED DB: PDB REMARK 900 RELATED ID: 3P47 RELATED DB: PDB DBREF 3Q1X A 1 305 UNP Q9U8X2 Q9U8X2_ENTHI 1 305 SEQADV 3Q1X LEU A 306 UNP Q9U8X2 EXPRESSION TAG SEQADV 3Q1X GLU A 307 UNP Q9U8X2 EXPRESSION TAG SEQADV 3Q1X HIS A 308 UNP Q9U8X2 EXPRESSION TAG SEQADV 3Q1X HIS A 309 UNP Q9U8X2 EXPRESSION TAG SEQADV 3Q1X HIS A 310 UNP Q9U8X2 EXPRESSION TAG SEQADV 3Q1X HIS A 311 UNP Q9U8X2 EXPRESSION TAG SEQADV 3Q1X HIS A 312 UNP Q9U8X2 EXPRESSION TAG SEQADV 3Q1X HIS A 313 UNP Q9U8X2 EXPRESSION TAG SEQRES 1 A 313 MET ASP ASN TYR ILE TYR SER ILE ALA HIS GLN LEU TYR SEQRES 2 A 313 GLU MET TYR LEU GLN ASP GLU ASP ALA PHE HIS SER LYS SEQRES 3 A 313 ARG ASP TYR PRO HIS LYS LYS VAL PHE THR GLU LEU GLN SEQRES 4 A 313 LYS LEU ARG LYS ILE PHE PHE PRO ASP PHE PHE MET LYS SEQRES 5 A 313 HIS GLN LYS ILE THR GLU SER HIS ILE ALA SER GLU LEU SEQRES 6 A 313 THR LYS LEU VAL ASP TYR ILE LYS ASP SER VAL THR ALA SEQRES 7 A 313 TYR ASN ASP GLU LEU PHE ALA HIS GLN CYS VAL MET ALA SEQRES 8 A 313 ILE LEU GLU LYS LEU PRO SER ILE LYS ARG THR LEU LYS SEQRES 9 A 313 THR ASP LEU ILE ALA ALA TYR ALA GLY ASP PRO ALA ALA SEQRES 10 A 313 PRO GLY LEU SER LEU ILE ILE ARG CYS TYR PRO GLY PHE SEQRES 11 A 313 GLN ALA VAL ILE VAL TYR ARG ILE ALA HIS VAL LEU TYR SEQRES 12 A 313 GLU CYS GLY GLU ARG TYR TYR CYS ARG GLU MET MET GLU SEQRES 13 A 313 SER VAL HIS SER TYR THR SER ILE ASP ILE HIS PRO GLY SEQRES 14 A 313 ALA SER ILE LYS GLY HIS PHE PHE ILE ASP HIS GLY VAL SEQRES 15 A 313 GLY VAL VAL ILE GLY GLU THR ALA ILE ILE GLY GLU TRP SEQRES 16 A 313 CYS ARG ILE TYR GLN SER VAL THR LEU GLY ALA MET HIS SEQRES 17 A 313 PHE GLN GLU GLU GLY GLY VAL ILE LYS ARG GLY THR LYS SEQRES 18 A 313 ARG HIS PRO THR VAL GLY ASP TYR VAL THR ILE GLY THR SEQRES 19 A 313 GLY ALA LYS VAL LEU GLY ASN ILE ILE VAL GLY SER HIS SEQRES 20 A 313 VAL ARG ILE GLY ALA ASN CYS TRP ILE ASP ARG ASP VAL SEQRES 21 A 313 ASP SER ASN GLN THR VAL TYR ILE SER GLU HIS PRO THR SEQRES 22 A 313 HIS PHE VAL LYS PRO CYS THR THR LYS GLY MET LYS ASN SEQRES 23 A 313 ASP THR GLU ILE ILE ALA ILE ILE PRO SER SER PRO LEU SEQRES 24 A 313 ALA ASN SER PRO SER ILE LEU GLU HIS HIS HIS HIS HIS SEQRES 25 A 313 HIS HET SER A 314 7 HET SO4 A 315 5 HETNAM SER SERINE HETNAM SO4 SULFATE ION FORMUL 2 SER C3 H7 N O3 FORMUL 3 SO4 O4 S 2- FORMUL 4 HOH *106(H2 O) HELIX 1 1 MET A 1 ASP A 19 1 19 HELIX 2 2 GLU A 20 HIS A 24 5 5 HELIX 3 3 PHE A 35 PHE A 46 1 12 HELIX 4 4 PHE A 46 MET A 51 1 6 HELIX 5 5 LYS A 52 ILE A 56 5 5 HELIX 6 6 GLU A 58 ASN A 80 1 23 HELIX 7 7 ASP A 81 ASP A 114 1 34 HELIX 8 8 GLY A 119 TYR A 127 1 9 HELIX 9 9 TYR A 127 CYS A 145 1 19 HELIX 10 10 TYR A 149 SER A 163 1 15 SHEET 1 A 5 ASP A 165 ILE A 166 0 SHEET 2 A 5 VAL A 185 ILE A 186 1 O ILE A 186 N ASP A 165 SHEET 3 A 5 THR A 203 GLY A 205 1 O LEU A 204 N VAL A 185 SHEET 4 A 5 LYS A 237 LEU A 239 1 O VAL A 238 N THR A 203 SHEET 5 A 5 TRP A 255 ILE A 256 1 O ILE A 256 N LEU A 239 SHEET 1 B 4 SER A 171 ILE A 172 0 SHEET 2 B 4 ILE A 191 ILE A 192 1 O ILE A 192 N SER A 171 SHEET 3 B 4 THR A 225 VAL A 226 1 O VAL A 226 N ILE A 191 SHEET 4 B 4 ILE A 243 VAL A 244 1 O VAL A 244 N THR A 225 SHEET 1 C 5 PHE A 177 ILE A 178 0 SHEET 2 C 5 ARG A 197 ILE A 198 1 O ILE A 198 N PHE A 177 SHEET 3 C 5 THR A 231 ILE A 232 1 O ILE A 232 N ARG A 197 SHEET 4 C 5 VAL A 248 ILE A 250 1 O ILE A 250 N THR A 231 SHEET 5 C 5 GLN A 264 VAL A 266 1 O VAL A 266 N ARG A 249 CISPEP 1 GLU A 212 GLY A 213 0 -8.45 SITE 1 AC1 9 ASP A 114 ALA A 116 ASP A 179 HIS A 180 SITE 2 AC1 9 ALA A 206 HIS A 208 ARG A 222 HIS A 223 SITE 3 AC1 9 HOH A 374 SITE 1 AC2 3 SER A 201 GLY A 235 LYS A 237 CRYST1 110.190 110.190 63.327 90.00 90.00 120.00 H 3 9 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 0.009075 0.005240 0.000000 0.00000 SCALE2 0.000000 0.010479 0.000000 0.00000 SCALE3 0.000000 0.000000 0.015791 0.00000