HEADER TOXIN 12-SEP-06 2ICI TITLE CRYSTAL STRUCTURE OF STREPTOCOCCAL PYROGENIC EXOTOXIN I COMPND MOL_ID: 1; COMPND 2 MOLECULE: EXOTOXIN I; COMPND 3 CHAIN: A; COMPND 4 ENGINEERED: YES; COMPND 5 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: STREPTOCOCCUS PYOGENES; SOURCE 3 ORGANISM_TAXID: 1314; SOURCE 4 GENE: SPEI; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 7 EXPRESSION_SYSTEM_STRAIN: AUXOTROPHIC B384 KEYWDS STREPTOCOCCAL SUPERANTIGEN SPEI, TOXIN EXPDTA X-RAY DIFFRACTION AUTHOR S.GUNTHER,A.K.VARMA,E.J.SUNDBERG REVDAT 3 20-OCT-21 2ICI 1 REMARK SEQADV LINK REVDAT 2 24-FEB-09 2ICI 1 VERSN REVDAT 1 27-MAR-07 2ICI 0 JRNL AUTH J.N.BROUILLARD,S.GUNTHER,A.K.VARMA,I.GRYSKI,C.A.HERFST, JRNL AUTH 2 A.K.RAHMAN,D.Y.LEUNG,P.M.SCHLIEVERT,J.MADRENAS,E.J.SUNDBERG, JRNL AUTH 3 J.K.MCCORMICK JRNL TITL CRYSTAL STRUCTURE OF THE STREPTOCOCCAL SUPERANTIGEN SPEI AND JRNL TITL 2 FUNCTIONAL ROLE OF A NOVEL LOOP DOMAIN IN T CELL ACTIVATION JRNL TITL 3 BY GROUP V SUPERANTIGENS. JRNL REF J.MOL.BIOL. V. 367 925 2007 JRNL REFN ISSN 0022-2836 JRNL PMID 17303163 JRNL DOI 10.1016/J.JMB.2007.01.024 REMARK 2 REMARK 2 RESOLUTION. 1.56 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC 5.2.0019 REMARK 3 AUTHORS : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER, REMARK 3 : NICHOLLS,WINN,LONG,VAGIN REMARK 3 REMARK 3 REFINEMENT TARGET : MAXIMUM LIKELIHOOD WITH PHASES REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.56 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 22.38 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 99.5 REMARK 3 NUMBER OF REFLECTIONS : 29279 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) : 0.178 REMARK 3 R VALUE (WORKING SET) : 0.176 REMARK 3 FREE R VALUE : 0.227 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.100 REMARK 3 FREE R VALUE TEST SET COUNT : 1489 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) : 1.56 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.60 REMARK 3 REFLECTION IN BIN (WORKING SET) : 1939 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 94.89 REMARK 3 BIN R VALUE (WORKING SET) : 0.1800 REMARK 3 BIN FREE R VALUE SET COUNT : 121 REMARK 3 BIN FREE R VALUE : 0.2460 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1834 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 1 REMARK 3 SOLVENT ATOMS : 299 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 19.35 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 0.06000 REMARK 3 B22 (A**2) : -0.06000 REMARK 3 B33 (A**2) : 0.01000 REMARK 3 B12 (A**2) : 0.00000 REMARK 3 B13 (A**2) : 0.05000 REMARK 3 B23 (A**2) : 0.00000 REMARK 3 REMARK 3 ESTIMATED OVERALL COORDINATE ERROR. REMARK 3 ESU BASED ON R VALUE (A): 0.143 REMARK 3 ESU BASED ON FREE R VALUE (A): 0.101 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.058 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 3.458 REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : 0.960 REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : 0.942 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES COUNT RMS WEIGHT REMARK 3 BOND LENGTHS REFINED ATOMS (A): 1874 ; 0.010 ; 0.022 REMARK 3 BOND LENGTHS OTHERS (A): NULL ; NULL ; NULL REMARK 3 BOND ANGLES REFINED ATOMS (DEGREES): 2520 ; 1.324 ; 1.950 REMARK 3 BOND ANGLES OTHERS (DEGREES): NULL ; NULL ; NULL REMARK 3 TORSION ANGLES, PERIOD 1 (DEGREES): 226 ; 7.581 ; 5.000 REMARK 3 TORSION ANGLES, PERIOD 2 (DEGREES): 95 ;32.348 ;24.737 REMARK 3 TORSION ANGLES, PERIOD 3 (DEGREES): 338 ;13.640 ;15.000 REMARK 3 TORSION ANGLES, PERIOD 4 (DEGREES): 8 ;21.328 ;15.000 REMARK 3 CHIRAL-CENTER RESTRAINTS (A**3): 262 ; 0.098 ; 0.200 REMARK 3 GENERAL PLANES REFINED ATOMS (A): 1434 ; 0.005 ; 0.020 REMARK 3 GENERAL PLANES OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED CONTACTS REFINED ATOMS (A): 936 ; 0.231 ; 0.200 REMARK 3 NON-BONDED CONTACTS OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED TORSION REFINED ATOMS (A): 1312 ; 0.315 ; 0.200 REMARK 3 NON-BONDED TORSION OTHERS (A): NULL ; NULL ; NULL REMARK 3 H-BOND (X...Y) REFINED ATOMS (A): 267 ; 0.192 ; 0.200 REMARK 3 H-BOND (X...Y) OTHERS (A): NULL ; NULL ; NULL REMARK 3 POTENTIAL METAL-ION REFINED ATOMS (A): 1 ; 0.057 ; 0.200 REMARK 3 POTENTIAL METAL-ION OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY VDW REFINED ATOMS (A): 108 ; 0.220 ; 0.200 REMARK 3 SYMMETRY VDW OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY H-BOND REFINED ATOMS (A): 46 ; 0.214 ; 0.200 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): 1148 ; 1.147 ; 1.500 REMARK 3 MAIN-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE REFINED ATOMS (A**2): 1820 ; 1.676 ; 2.000 REMARK 3 MAIN-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN BOND REFINED ATOMS (A**2): 813 ; 2.123 ; 3.000 REMARK 3 SIDE-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE REFINED ATOMS (A**2): 700 ; 3.024 ; 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): 1961 ; 1.333 ; 3.000 REMARK 3 SPHERICITY; FREE ATOMS (A**2): 335 ; 4.218 ; 3.000 REMARK 3 SPHERICITY; BONDED ATOMS (A**2): 1834 ; 3.256 ; 3.000 REMARK 3 REMARK 3 NCS RESTRAINTS STATISTICS REMARK 3 NUMBER OF DIFFERENT NCS GROUPS : NULL 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. THE FRIEDEL PAIRS WERE USED FOR PHASING REMARK 4 REMARK 4 2ICI COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 13-SEP-06. REMARK 100 THE DEPOSITION ID IS D_1000039411. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 03-MAY-06 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : NULL REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : CHESS REMARK 200 BEAMLINE : F2 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.97903, 0.97942, 0.96418, REMARK 200 0.97795 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : NULL REMARK 200 DETECTOR MANUFACTURER : NULL REMARK 200 INTENSITY-INTEGRATION SOFTWARE : HKL-2000 REMARK 200 DATA SCALING SOFTWARE : HKL-2000 REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 57515 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.560 REMARK 200 RESOLUTION RANGE LOW (A) : 50.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 1.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 98.8 REMARK 200 DATA REDUNDANCY : 3.520 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.04100 REMARK 200 FOR THE DATA SET : 28.6000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.56 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.62 REMARK 200 COMPLETENESS FOR SHELL (%) : 91.3 REMARK 200 DATA REDUNDANCY IN SHELL : 3.10 REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : 0.12900 REMARK 200 FOR SHELL : 7.700 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 (%): 38.73 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.01 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: VAPOR DIFFUSION, HANGING DROP REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 1 21 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,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 0.00000 REMARK 290 SMTRY2 2 0.000000 1.000000 0.000000 40.22050 REMARK 290 SMTRY3 2 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 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 391 O HOH A 583 1.57 REMARK 500 O HOH A 429 O HOH A 547 1.90 REMARK 500 OD1 ASP A 129 O HOH A 318 2.02 REMARK 500 O HOH A 338 O HOH A 564 2.12 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 SER A 5 52.61 -147.32 REMARK 500 SER A 34 -112.05 55.00 REMARK 500 TYR A 44 139.48 -170.64 REMARK 500 SER A 47 -102.48 -152.82 REMARK 500 PRO A 79 48.31 -108.96 REMARK 500 SER A 80 -107.79 164.46 REMARK 500 ASN A 81 -134.49 -148.24 REMARK 500 SER A 82 -157.59 -95.15 REMARK 500 ARG A 163 27.35 -153.64 REMARK 500 GLU A 172 15.87 -144.26 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: NON-CIS, NON-TRANS REMARK 500 REMARK 500 THE FOLLOWING PEPTIDE BONDS DEVIATE SIGNIFICANTLY FROM BOTH REMARK 500 CIS AND TRANS CONFORMATION. CIS BONDS, IF ANY, ARE LISTED REMARK 500 ON CISPEP RECORDS. TRANS IS DEFINED AS 180 +/- 30 AND REMARK 500 CIS IS DEFINED AS 0 +/- 30 DEGREES. REMARK 500 MODEL OMEGA REMARK 500 PRO A 78 PRO A 79 -55.32 REMARK 500 SER A 80 ASN A 81 144.01 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 301 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 179 ND1 REMARK 620 2 HIS A 217 NE2 75.0 REMARK 620 3 ASP A 219 OD2 73.1 104.8 REMARK 620 4 HOH A 597 O 88.1 162.8 66.1 REMARK 620 N 1 2 3 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG A 301 REMARK 999 REMARK 999 SEQUENCE REMARK 999 THE SEQUENCE OF THIS ENTRY WAS NOT AVAILABLE REMARK 999 IN UNIPROT DATABASE AT THE TIME OF DEPOSITION. DBREF 2ICI A 3 227 UNP Q8VVW1 Q8VVW1_STRPY 1 225 SEQADV 2ICI TYR A 1 UNP Q8VVW1 CLONING ARTIFACT SEQADV 2ICI GLU A 2 UNP Q8VVW1 CLONING ARTIFACT SEQADV 2ICI MSE A 3 UNP Q8VVW1 MET 1 MODIFIED RESIDUE SEQADV 2ICI MSE A 14 UNP Q8VVW1 LEU 12 ENGINEERED MUTATION SEQADV 2ICI MSE A 55 UNP Q8VVW1 LEU 53 ENGINEERED MUTATION SEQADV 2ICI SER A 80 UNP Q8VVW1 CYS 78 ENGINEERED MUTATION SEQADV 2ICI MSE A 190 UNP Q8VVW1 LEU 188 ENGINEERED MUTATION SEQADV 2ICI MSE A 201 UNP Q8VVW1 MET 199 MODIFIED RESIDUE SEQRES 1 A 227 TYR GLU MSE SER SER VAL GLY VAL ILE ASN LEU ARG ASN SEQRES 2 A 227 MSE TYR SER THR TYR ASP PRO THR GLU VAL LYS GLY LYS SEQRES 3 A 227 ILE ASN GLU GLY PRO PRO PHE SER GLY SER LEU PHE TYR SEQRES 4 A 227 LYS ASN ILE PRO TYR GLY ASN SER SER ILE GLU LEU LYS SEQRES 5 A 227 VAL GLU MSE ASN SER VAL GLU LYS ALA ASN PHE PHE SER SEQRES 6 A 227 GLY LYS ARG VAL ASP ILE PHE THR LEU GLU TYR SER PRO SEQRES 7 A 227 PRO SER ASN SER ASN ILE LYS LYS ASN SER TYR GLY GLY SEQRES 8 A 227 ILE THR LEU SER ASP GLY ASN ARG ILE ASP LYS LYS ASN SEQRES 9 A 227 ILE PRO VAL ASN ILE PHE ILE ASP GLY VAL GLN GLN LYS SEQRES 10 A 227 TYR SER TYR THR ASP ILE SER THR VAL SER THR ASP LYS SEQRES 11 A 227 LYS GLU VAL THR ILE GLN GLU LEU ASP VAL LYS SER ARG SEQRES 12 A 227 TYR TYR LEU GLN LYS HIS PHE ASN ILE TYR GLY PHE GLY SEQRES 13 A 227 ASP VAL LYS ASP PHE GLY ARG SER SER ARG PHE GLN SER SEQRES 14 A 227 GLY PHE GLU GLU GLY ASN ILE ILE PHE HIS LEU ASN SER SEQRES 15 A 227 GLY GLU ARG ILE SER TYR ASN MSE PHE ASP THR GLY HIS SEQRES 16 A 227 GLY ASP ARG GLU SER MSE LEU LYS LYS TYR SER ASP ASN SEQRES 17 A 227 LYS THR ALA TYR SER ASP GLN LEU HIS ILE ASP ILE TYR SEQRES 18 A 227 LEU VAL LYS PHE ASN LYS MODRES 2ICI MSE A 3 MET SELENOMETHIONINE MODRES 2ICI MSE A 14 MET SELENOMETHIONINE MODRES 2ICI MSE A 55 MET SELENOMETHIONINE MODRES 2ICI MSE A 190 MET SELENOMETHIONINE MODRES 2ICI MSE A 201 MET SELENOMETHIONINE HET MSE A 3 8 HET MSE A 14 8 HET MSE A 55 8 HET MSE A 190 8 HET MSE A 201 8 HET MG A 301 1 HETNAM MSE SELENOMETHIONINE HETNAM MG MAGNESIUM ION FORMUL 1 MSE 5(C5 H11 N O2 SE) FORMUL 2 MG MG 2+ FORMUL 3 HOH *299(H2 O) HELIX 1 1 SER A 5 THR A 17 1 13 HELIX 2 2 SER A 57 SER A 65 1 9 HELIX 3 3 ILE A 135 ASN A 151 1 17 HELIX 4 4 ASP A 197 LYS A 203 1 7 HELIX 5 5 LYS A 204 ASN A 208 5 5 SHEET 1 A 3 THR A 21 LYS A 26 0 SHEET 2 A 3 VAL A 69 THR A 73 -1 O VAL A 69 N LYS A 26 SHEET 3 A 3 ILE A 92 LEU A 94 -1 O THR A 93 N ASP A 70 SHEET 1 B 4 SER A 36 TYR A 44 0 SHEET 2 B 4 SER A 47 GLU A 54 -1 O VAL A 53 N LEU A 37 SHEET 3 B 4 LYS A 85 TYR A 89 1 O LYS A 86 N LYS A 52 SHEET 4 B 4 GLU A 75 TYR A 76 -1 N TYR A 76 O ASN A 87 SHEET 1 C 2 ARG A 99 ASN A 104 0 SHEET 2 C 2 SER A 127 LYS A 130 -1 O THR A 128 N LYS A 103 SHEET 1 D 5 VAL A 114 GLN A 115 0 SHEET 2 D 5 VAL A 107 ILE A 111 -1 N ILE A 111 O VAL A 114 SHEET 3 D 5 LEU A 216 LYS A 224 1 O ILE A 220 N PHE A 110 SHEET 4 D 5 PHE A 171 LEU A 180 -1 N ILE A 177 O ASP A 219 SHEET 5 D 5 ARG A 185 ASN A 189 -1 O ILE A 186 N PHE A 178 SHEET 1 E 2 GLU A 132 THR A 134 0 SHEET 2 E 2 THR A 210 TYR A 212 -1 O ALA A 211 N VAL A 133 LINK C GLU A 2 N MSE A 3 1555 1555 1.32 LINK C MSE A 3 N SER A 4 1555 1555 1.33 LINK C ASN A 13 N MSE A 14 1555 1555 1.33 LINK C MSE A 14 N TYR A 15 1555 1555 1.33 LINK C GLU A 54 N MSE A 55 1555 1555 1.33 LINK C MSE A 55 N ASN A 56 1555 1555 1.32 LINK C ASN A 189 N MSE A 190 1555 1555 1.33 LINK C MSE A 190 N PHE A 191 1555 1555 1.33 LINK C SER A 200 N MSE A 201 1555 1555 1.33 LINK C MSE A 201 N LEU A 202 1555 1555 1.33 LINK ND1 HIS A 179 MG MG A 301 1555 1555 2.95 LINK NE2 HIS A 217 MG MG A 301 1555 1555 2.07 LINK OD2 ASP A 219 MG MG A 301 1555 1555 1.93 LINK MG MG A 301 O HOH A 597 1555 1555 2.65 CISPEP 1 ASN A 81 SER A 82 0 11.11 SITE 1 AC1 4 HIS A 179 HIS A 217 ASP A 219 HOH A 597 CRYST1 30.864 80.441 43.054 90.00 99.51 90.00 P 1 21 1 2 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 0.032400 0.000000 0.005431 0.00000 SCALE2 0.000000 0.012431 0.000000 0.00000 SCALE3 0.000000 0.000000 0.023551 0.00000