HEADER HYDROLASE 12-MAY-06 2GZS TITLE ENTEROBACTIN HYDOLASE IROE COMPLEX WITH DFP COMPND MOL_ID: 1; COMPND 2 MOLECULE: IROE PROTEIN; COMPND 3 CHAIN: A; COMPND 4 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI; SOURCE 3 ORGANISM_TAXID: 562; SOURCE 4 GENE: IROE; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 562 KEYWDS ENTEROBACTIN, SALMOCHELIN, DFP, HYDROLASE, CATALYTIC DYAD EXPDTA X-RAY DIFFRACTION AUTHOR N.A.LARSEN,C.T.WALSH REVDAT 2 24-FEB-09 2GZS 1 VERSN REVDAT 1 05-SEP-06 2GZS 0 JRNL AUTH N.A.LARSEN,H.LIN,R.WEI,M.A.FISCHBACH,C.T.WALSH JRNL TITL STRUCTURAL CHARACTERIZATION OF ENTEROBACTIN JRNL TITL 2 HYDROLASE IROE. JRNL REF BIOCHEMISTRY V. 45 10184 2006 JRNL REFN ISSN 0006-2960 JRNL PMID 16922493 JRNL DOI 10.1021/BI060950I REMARK 1 REMARK 2 REMARK 2 RESOLUTION. 1.40 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : SHELXL-97 REMARK 3 AUTHORS : G.M.SHELDRICK REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.40 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 20.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : NULL REMARK 3 CROSS-VALIDATION METHOD : THROUGHOUT REMARK 3 FREE R VALUE TEST SET SELECTION : RANDOM REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT (NO CUTOFF). REMARK 3 R VALUE (WORKING + TEST SET, NO CUTOFF) : 0.174 REMARK 3 R VALUE (WORKING SET, NO CUTOFF) : NULL REMARK 3 FREE R VALUE (NO CUTOFF) : 0.186 REMARK 3 FREE R VALUE TEST SET SIZE (%, NO CUTOFF) : NULL REMARK 3 FREE R VALUE TEST SET COUNT (NO CUTOFF) : 3961 REMARK 3 TOTAL NUMBER OF REFLECTIONS (NO CUTOFF) : 80830 REMARK 3 REMARK 3 FIT/AGREEMENT OF MODEL FOR DATA WITH F>4SIG(F). REMARK 3 R VALUE (WORKING + TEST SET, F>4SIG(F)) : 0.163 REMARK 3 R VALUE (WORKING SET, F>4SIG(F)) : NULL REMARK 3 FREE R VALUE (F>4SIG(F)) : NULL REMARK 3 FREE R VALUE TEST SET SIZE (%, F>4SIG(F)) : NULL REMARK 3 FREE R VALUE TEST SET COUNT (F>4SIG(F)) : NULL REMARK 3 TOTAL NUMBER OF REFLECTIONS (F>4SIG(F)) : 65525 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1954 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 10 REMARK 3 SOLVENT ATOMS : 197 REMARK 3 REMARK 3 MODEL REFINEMENT. REMARK 3 OCCUPANCY SUM OF NON-HYDROGEN ATOMS : 2162.00 REMARK 3 OCCUPANCY SUM OF HYDROGEN ATOMS : 0.00 REMARK 3 NUMBER OF DISCRETELY DISORDERED RESIDUES : 0 REMARK 3 NUMBER OF LEAST-SQUARES PARAMETERS : 8651 REMARK 3 NUMBER OF RESTRAINTS : 8093 REMARK 3 REMARK 3 RMS DEVIATIONS FROM RESTRAINT TARGET VALUES. REMARK 3 BOND LENGTHS (A) : 0.016 REMARK 3 ANGLE DISTANCES (A) : 0.035 REMARK 3 SIMILAR DISTANCES (NO TARGET VALUES) (A) : 0.000 REMARK 3 DISTANCES FROM RESTRAINT PLANES (A) : 0.029 REMARK 3 ZERO CHIRAL VOLUMES (A**3) : 0.073 REMARK 3 NON-ZERO CHIRAL VOLUMES (A**3) : 0.099 REMARK 3 ANTI-BUMPING DISTANCE RESTRAINTS (A) : 0.024 REMARK 3 RIGID-BOND ADP COMPONENTS (A**2) : 0.000 REMARK 3 SIMILAR ADP COMPONENTS (A**2) : 0.078 REMARK 3 APPROXIMATELY ISOTROPIC ADPS (A**2) : 0.000 REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED: NULL REMARK 3 REMARK 3 STEREOCHEMISTRY TARGET VALUES : ENGH & HUBER REMARK 3 SPECIAL CASE: NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 2GZS COMPLIES WITH FORMAT V. 3.15, 01-DEC-08 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 16-MAY-06. REMARK 100 THE RCSB ID CODE IS RCSB037750. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 10-FEB-06 REMARK 200 TEMPERATURE (KELVIN) : 120 REMARK 200 PH : 7.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : ALS REMARK 200 BEAMLINE : 8.2.1 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.97960, 0.9798, 0.9184 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : ADSC QUANTUM 210 REMARK 200 INTENSITY-INTEGRATION SOFTWARE : HKL-2000 REMARK 200 DATA SCALING SOFTWARE : HKL-2000 REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 79213 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.400 REMARK 200 RESOLUTION RANGE LOW (A) : 20.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 1.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 93.7 REMARK 200 DATA REDUNDANCY : NULL REMARK 200 R MERGE (I) : NULL 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) : 1.40 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.45 REMARK 200 COMPLETENESS FOR SHELL (%) : 84.6 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: MAD REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MAD REMARK 200 SOFTWARE USED: SOLVE REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 31.92 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 1.81 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 5-10% PEG 3350, 100 MM HEPES, 500 REMARK 280 MM DFP, PH 7.5, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 296K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 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 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 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 SER A 147 REMARK 465 GLY A 148 REMARK 465 ARG A 149 REMARK 465 PHE A 150 REMARK 465 SER A 151 REMARK 465 THR A 247 REMARK 465 GLN A 248 REMARK 465 GLY A 249 REMARK 465 ASP A 250 REMARK 465 ASN A 251 REMARK 465 ARG A 252 REMARK 465 GLU A 253 REMARK 465 THR A 254 REMARK 465 HIS A 255 REMARK 465 ALA A 256 REMARK 465 VAL A 257 REMARK 465 ASN A 306 REMARK 465 ALA A 307 REMARK 465 ASN A 308 REMARK 465 TYR A 309 REMARK 465 THR A 310 REMARK 465 ALA A 311 REMARK 465 GLY A 312 REMARK 465 CYS A 313 REMARK 465 HIS A 314 REMARK 465 GLU A 315 REMARK 465 LEU A 316 REMARK 465 SER A 317 REMARK 465 HIS A 318 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 SER A 189 CB SER A 189 OG 0.079 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 65 NE - CZ - NH2 ANGL. DEV. = -3.3 DEGREES REMARK 500 TYR A 83 CB - CG - CD2 ANGL. DEV. = -5.6 DEGREES REMARK 500 TYR A 83 CD1 - CG - CD2 ANGL. DEV. = 7.1 DEGREES REMARK 500 TYR A 87 CG - CD2 - CE2 ANGL. DEV. = -5.4 DEGREES REMARK 500 ARG A 97 CD - NE - CZ ANGL. DEV. = 11.2 DEGREES REMARK 500 ARG A 130 CD - NE - CZ ANGL. DEV. = 8.5 DEGREES REMARK 500 ARG A 130 NE - CZ - NH1 ANGL. DEV. = -7.7 DEGREES REMARK 500 ARG A 130 NE - CZ - NH2 ANGL. DEV. = 5.4 DEGREES REMARK 500 TYR A 134 CB - CG - CD2 ANGL. DEV. = -3.9 DEGREES REMARK 500 GLU A 139 OE1 - CD - OE2 ANGL. DEV. = -7.5 DEGREES REMARK 500 ARG A 152 NE - CZ - NH1 ANGL. DEV. = -3.9 DEGREES REMARK 500 ARG A 161 NE - CZ - NH1 ANGL. DEV. = -7.0 DEGREES REMARK 500 ARG A 161 NE - CZ - NH2 ANGL. DEV. = 6.6 DEGREES REMARK 500 ARG A 167 NH1 - CZ - NH2 ANGL. DEV. = 7.3 DEGREES REMARK 500 ARG A 167 NE - CZ - NH2 ANGL. DEV. = -4.6 DEGREES REMARK 500 ARG A 182 CD - NE - CZ ANGL. DEV. = 13.9 DEGREES REMARK 500 ARG A 183 NH1 - CZ - NH2 ANGL. DEV. = -6.8 DEGREES REMARK 500 ARG A 183 NE - CZ - NH1 ANGL. DEV. = 5.9 DEGREES REMARK 500 ASP A 197 CB - CG - OD2 ANGL. DEV. = 5.6 DEGREES REMARK 500 TYR A 208 CB - CG - CD2 ANGL. DEV. = -4.2 DEGREES REMARK 500 ARG A 217 NE - CZ - NH1 ANGL. DEV. = 5.4 DEGREES REMARK 500 ARG A 217 NE - CZ - NH2 ANGL. DEV. = -4.5 DEGREES REMARK 500 TYR A 219 CB - CG - CD2 ANGL. DEV. = 4.3 DEGREES REMARK 500 TYR A 219 CB - CG - CD1 ANGL. DEV. = -4.1 DEGREES REMARK 500 ARG A 225 CD - NE - CZ ANGL. DEV. = 14.2 DEGREES REMARK 500 ARG A 225 NE - CZ - NH1 ANGL. DEV. = 4.0 DEGREES REMARK 500 GLY A 244 CA - C - O ANGL. DEV. = -11.0 DEGREES REMARK 500 GLY A 244 O - C - N ANGL. DEV. = 17.2 DEGREES REMARK 500 ASP A 281 CB - CG - OD2 ANGL. DEV. = -5.9 DEGREES REMARK 500 ARG A 296 NH1 - CZ - NH2 ANGL. DEV. = 8.0 DEGREES REMARK 500 ARG A 296 NE - CZ - NH1 ANGL. DEV. = -4.8 DEGREES REMARK 500 ARG A 296 NE - CZ - NH2 ANGL. DEV. = -3.2 DEGREES REMARK 500 ASP A 301 CB - CG - OD1 ANGL. DEV. = 6.8 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 LYS A 109 -126.48 -114.80 REMARK 500 ARG A 167 -57.07 -120.01 REMARK 500 SER A 189 -119.27 67.12 REMARK 500 LEU A 232 -20.83 76.04 REMARK 500 SER A 245 -90.39 50.40 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 A1382 DISTANCE = 5.26 ANGSTROMS REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE DFP A 1189 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 2GZR RELATED DB: PDB DBREF 2GZS A 41 318 UNP Q6KD95 Q6KD95_ECOLI 41 318 SEQADV 2GZS MSE A 88 UNP Q6KD95 MET 88 MODIFIED RESIDUE SEQADV 2GZS MSE A 95 UNP Q6KD95 MET 95 MODIFIED RESIDUE SEQADV 2GZS MSE A 242 UNP Q6KD95 MET 242 MODIFIED RESIDUE SEQADV 2GZS MSE A 290 UNP Q6KD95 MET 290 MODIFIED RESIDUE SEQRES 1 A 278 PRO ASN ILE ALA ASP LYS GLY SER VAL PHE TYR HIS PHE SEQRES 2 A 278 SER ALA THR SER PHE ASP SER VAL ASP GLY THR ARG HIS SEQRES 3 A 278 TYR ARG VAL TRP THR ALA VAL PRO ASN THR THR ALA PRO SEQRES 4 A 278 ALA SER GLY TYR PRO ILE LEU TYR MSE LEU ASP GLY ASN SEQRES 5 A 278 ALA VAL MSE ASP ARG LEU ASP ASP GLU LEU LEU LYS GLN SEQRES 6 A 278 LEU SER GLU LYS THR PRO PRO VAL ILE VAL ALA VAL GLY SEQRES 7 A 278 TYR GLN THR ASN LEU PRO PHE ASP LEU ASN SER ARG ALA SEQRES 8 A 278 TYR ASP TYR THR PRO ALA ALA GLU SER ARG LYS THR ASP SEQRES 9 A 278 LEU HIS SER GLY ARG PHE SER ARG LYS SER GLY GLY SER SEQRES 10 A 278 ASN ASN PHE ARG GLN LEU LEU GLU THR ARG ILE ALA PRO SEQRES 11 A 278 LYS VAL GLU GLN GLY LEU ASN ILE ASP ARG GLN ARG ARG SEQRES 12 A 278 GLY LEU TRP GLY HIS SER TYR GLY GLY LEU PHE VAL LEU SEQRES 13 A 278 ASP SER TRP LEU SER SER SER TYR PHE ARG SER TYR TYR SEQRES 14 A 278 SER ALA SER PRO SER LEU GLY ARG GLY TYR ASP ALA LEU SEQRES 15 A 278 LEU SER ARG VAL THR ALA VAL GLU PRO LEU GLN PHE CYS SEQRES 16 A 278 THR LYS HIS LEU ALA ILE MSE GLU GLY SER ALA THR GLN SEQRES 17 A 278 GLY ASP ASN ARG GLU THR HIS ALA VAL GLY VAL LEU SER SEQRES 18 A 278 LYS ILE HIS THR THR LEU THR ILE LEU LYS ASP LYS GLY SEQRES 19 A 278 VAL ASN ALA VAL PHE TRP ASP PHE PRO ASN LEU GLY HIS SEQRES 20 A 278 GLY PRO MSE PHE ASN ALA SER PHE ARG GLN ALA LEU LEU SEQRES 21 A 278 ASP ILE SER GLY GLU ASN ALA ASN TYR THR ALA GLY CYS SEQRES 22 A 278 HIS GLU LEU SER HIS MODRES 2GZS MSE A 88 MET SELENOMETHIONINE MODRES 2GZS MSE A 95 MET SELENOMETHIONINE MODRES 2GZS MSE A 242 MET SELENOMETHIONINE MODRES 2GZS MSE A 290 MET SELENOMETHIONINE HET MSE A 88 8 HET MSE A 95 8 HET MSE A 242 8 HET MSE A 290 8 HET DFP A1189 10 HETNAM MSE SELENOMETHIONINE HETNAM DFP DIISOPROPYL PHOSPHONATE FORMUL 1 MSE 4(C5 H11 N O2 SE) FORMUL 2 DFP C6 H15 O3 P FORMUL 3 HOH *197(H2 O) HELIX 1 1 PRO A 41 GLY A 47 1 7 HELIX 2 2 ASP A 90 LEU A 98 1 9 HELIX 3 3 ASP A 99 SER A 107 1 9 HELIX 4 4 ASP A 126 TYR A 134 1 9 HELIX 5 5 PRO A 136 ARG A 141 5 6 HELIX 6 6 GLY A 156 ARG A 167 1 12 HELIX 7 7 ARG A 167 GLU A 173 1 7 HELIX 8 8 SER A 189 SER A 202 1 14 HELIX 9 9 PRO A 213 GLY A 216 5 4 HELIX 10 10 GLY A 218 ALA A 228 1 11 HELIX 11 11 GLY A 258 LYS A 273 1 16 HELIX 12 12 GLY A 286 SER A 303 1 18 SHEET 1 A 8 TYR A 51 ASP A 59 0 SHEET 2 A 8 HIS A 66 PRO A 74 -1 O VAL A 69 N THR A 56 SHEET 3 A 8 VAL A 113 TYR A 119 -1 O ILE A 114 N ALA A 72 SHEET 4 A 8 TYR A 83 MSE A 88 1 N MSE A 88 O VAL A 117 SHEET 5 A 8 ILE A 178 HIS A 188 1 O GLY A 184 N ILE A 85 SHEET 6 A 8 SER A 207 ALA A 211 1 O TYR A 209 N LEU A 185 SHEET 7 A 8 HIS A 238 GLU A 243 1 O ALA A 240 N TYR A 208 SHEET 8 A 8 ALA A 277 ASP A 281 1 O TRP A 280 N ILE A 241 LINK OG SER A 189 P DFP A1189 1555 1555 1.55 LINK C TYR A 87 N MSE A 88 1555 1555 1.30 LINK C MSE A 88 N LEU A 89 1555 1555 1.36 LINK C VAL A 94 N MSE A 95 1555 1555 1.32 LINK C MSE A 95 N ASP A 96 1555 1555 1.31 LINK C ILE A 241 N MSE A 242 1555 1555 1.32 LINK C MSE A 242 N GLU A 243 1555 1555 1.34 LINK C PRO A 289 N MSE A 290 1555 1555 1.34 LINK C MSE A 290 N PHE A 291 1555 1555 1.32 SITE 1 AC1 6 ARG A 130 SER A 189 TYR A 190 LEU A 215 SITE 2 AC1 6 GLY A 216 HIS A 287 CRYST1 36.295 38.361 44.631 113.10 93.99 98.08 P 1 1 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 0.027552 0.003911 0.003848 0.00000 SCALE2 0.000000 0.026330 0.011736 0.00000 SCALE3 0.000000 0.000000 0.024591 0.00000