HEADER TOXIN 24-AUG-08 3EA6 TITLE ATOMIC RESOLUTION OF CRYSTAL STRUCTURE OF SEK COMPND MOL_ID: 1; COMPND 2 MOLECULE: STAPHYLOCOCCAL ENTEROTOXIN K; COMPND 3 CHAIN: A; COMPND 4 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: STAPHYLOCOCCUS AUREUS; SOURCE 3 ORGANISM_TAXID: 1280; SOURCE 4 GENE: SEK, SACOL0886 KEYWDS ENTEROTOXIN, SUPERANTIGEN, TOXIN EXPDTA X-RAY DIFFRACTION AUTHOR K.SHI,M.HUSEBY,P.M.SCHLIEVERT,D.H.OHLENDORF,C.A.EARHART REVDAT 3 30-AUG-23 3EA6 1 REMARK REVDAT 2 04-AUG-09 3EA6 1 REMARK REVDAT 1 30-JUN-09 3EA6 0 JRNL AUTH K.SHI,M.HUSEBY,P.M.SCHLIEVERT,D.H.OHLENDORF,C.A.EARHART JRNL TITL STRUCTURAL STUDIES OF AN EMERGING PYROGENIC SUPERANTIGEN, JRNL TITL 2 SEK JRNL REF TO BE PUBLISHED JRNL REFN REMARK 2 REMARK 2 RESOLUTION. 0.92 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) : 0.92 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 50.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : NULL REMARK 3 COMPLETENESS FOR RANGE (%) : NULL REMARK 3 CROSS-VALIDATION METHOD : RANDOM REMARK 3 FREE R VALUE TEST SET SELECTION : NULL REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT (NO CUTOFF). REMARK 3 R VALUE (WORKING + TEST SET, NO CUTOFF) : NULL REMARK 3 R VALUE (WORKING SET, NO CUTOFF) : 0.101 REMARK 3 FREE R VALUE (NO CUTOFF) : 0.122 REMARK 3 FREE R VALUE TEST SET SIZE (%, NO CUTOFF) : NULL REMARK 3 FREE R VALUE TEST SET COUNT (NO CUTOFF) : NULL REMARK 3 TOTAL NUMBER OF REFLECTIONS (NO CUTOFF) : NULL REMARK 3 REMARK 3 FIT/AGREEMENT OF MODEL FOR DATA WITH F>4SIG(F). REMARK 3 R VALUE (WORKING + TEST SET, F>4SIG(F)) : NULL 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)) : NULL REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1763 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 6 REMARK 3 SOLVENT ATOMS : 450 REMARK 3 REMARK 3 MODEL REFINEMENT. REMARK 3 OCCUPANCY SUM OF NON-HYDROGEN ATOMS : NULL REMARK 3 OCCUPANCY SUM OF HYDROGEN ATOMS : NULL REMARK 3 NUMBER OF DISCRETELY DISORDERED RESIDUES : NULL REMARK 3 NUMBER OF LEAST-SQUARES PARAMETERS : NULL REMARK 3 NUMBER OF RESTRAINTS : NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM RESTRAINT TARGET VALUES. REMARK 3 BOND LENGTHS (A) : NULL REMARK 3 ANGLE DISTANCES (A) : NULL REMARK 3 SIMILAR DISTANCES (NO TARGET VALUES) (A) : NULL REMARK 3 DISTANCES FROM RESTRAINT PLANES (A) : NULL REMARK 3 ZERO CHIRAL VOLUMES (A**3) : NULL REMARK 3 NON-ZERO CHIRAL VOLUMES (A**3) : NULL REMARK 3 ANTI-BUMPING DISTANCE RESTRAINTS (A) : NULL REMARK 3 RIGID-BOND ADP COMPONENTS (A**2) : NULL REMARK 3 SIMILAR ADP COMPONENTS (A**2) : NULL REMARK 3 APPROXIMATELY ISOTROPIC ADPS (A**2) : NULL REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED: NULL REMARK 3 REMARK 3 STEREOCHEMISTRY TARGET VALUES : NULL REMARK 3 SPECIAL CASE: NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 3EA6 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 08-SEP-08. REMARK 100 THE DEPOSITION ID IS D_1000049068. 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 : 7 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : APS REMARK 200 BEAMLINE : 22-ID REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.000 REMARK 200 MONOCHROMATOR : SI 111 CHANNEL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : MAR SCANNER 345 MM PLATE REMARK 200 INTENSITY-INTEGRATION SOFTWARE : HKL-2000 REMARK 200 DATA SCALING SOFTWARE : HKL-2000 REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 140029 REMARK 200 RESOLUTION RANGE HIGH (A) : 0.920 REMARK 200 RESOLUTION RANGE LOW (A) : 50.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 86.2 REMARK 200 DATA REDUNDANCY : 9.500 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.08800 REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 26.7900 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 0.92 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 0.95 REMARK 200 COMPLETENESS FOR SHELL (%) : NULL REMARK 200 DATA REDUNDANCY IN SHELL : 1.70 REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : 0.22900 REMARK 200 <I/SIGMA(I)> FOR SHELL : 2.300 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: PHASER REMARK 200 SOFTWARE USED: PHASER REMARK 200 STARTING MODEL: 1SE3 REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 46.55 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.30 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PEG, PH 7, VAPOR DIFFUSION, HANGING REMARK 280 DROP, TEMPERATURE 277K 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 23.41450 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 46.47000 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 26.82600 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 46.47000 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 23.41450 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 26.82600 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: PISA 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 400 REMARK 400 COMPOUND REMARK 400 ACCORDING TO THE AUTHORS IN THE CRYSTAL, 47% OF THE PROTEIN WAS REMARK 400 HYDROLYZED AT THE PEPTIDE BOND OF T85 - N86, WHICH GENERATES T85- REMARK 400 COO AND H2N-N86. THE COOH MOVES WHILE THE H2N STAYS AT THE PREVIOUS REMARK 400 POSITION. THE COO HAS OCCUPANCY OF 47%, -CONH- (ORIGINAL PEPTIDE REMARK 400 BOND) HAS OCCUPANCY OF 53% AND H2N- HAS OCCUPANCY OF 47%. 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 GLN A 1 REMARK 465 GLY A 2 REMARK 465 THR A 218 REMARK 465 ILE A 219 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 146 CG CD CE NZ 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 25 NZ REMARK 480 GLN A 72 OE1 NE2 REMARK 480 LYS A 91 CE REMARK 480 ASN A 104 ND2 REMARK 480 LYS A 106 CD CE NZ REMARK 480 LYS A 112 NZ REMARK 480 ASP A 185 OD2 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 THR A 85 C THR A 85 OXT -0.176 REMARK 500 GLU A 217 CD GLU A 217 OE1 -0.110 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 ASP A 3 CA - CB - CG ANGL. DEV. = 24.0 DEGREES REMARK 500 ASP A 3 CB - CG - OD1 ANGL. DEV. = 8.3 DEGREES REMARK 500 ASP A 3 CB - CG - OD2 ANGL. DEV. = -5.7 DEGREES REMARK 500 CYS A 73 CB - CA - C ANGL. DEV. = 8.6 DEGREES REMARK 500 THR A 85 CA - C - O ANGL. DEV. = -16.5 DEGREES REMARK 500 GLU A 87 O - C - N ANGL. DEV. = -10.1 DEGREES REMARK 500 TYR A 88 CB - CG - CD2 ANGL. DEV. = -4.1 DEGREES REMARK 500 ARG A 93 NE - CZ - NH1 ANGL. DEV. = 3.3 DEGREES REMARK 500 GLU A 136 OE1 - CD - OE2 ANGL. DEV. = 7.5 DEGREES REMARK 500 HIS A 153 CE1 - NE2 - CD2 ANGL. DEV. = 4.6 DEGREES REMARK 500 GLU A 217 OE1 - CD - OE2 ANGL. DEV. = -13.2 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 CYS A 73 -114.19 47.86 REMARK 500 ASN A 74 46.92 -102.92 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 ASN A 173 ASP A 174 149.65 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 ZN A1001 ZN REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 169 ND1 REMARK 620 2 HIS A 208 NE2 105.4 REMARK 620 3 ASP A 210 OD2 88.7 129.7 REMARK 620 4 HOH A3240 O 113.1 111.1 106.5 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 ZN A 1001 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE IOD A 2001 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE IOD A 2002 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE IOD A 2003 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC5 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE IOD A 2004 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC6 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE IOD A 2005 DBREF 3EA6 A 1 219 UNP Q5HHK0 Q5HHK0_STAAC 24 242 SEQRES 1 A 219 GLN GLY ASP ILE GLY ILE ASP ASN LEU ARG ASN PHE TYR SEQRES 2 A 219 THR LYS LYS ASP PHE VAL ASP LEU LYS ASP VAL LYS ASP SEQRES 3 A 219 ASN ASP THR PRO ILE ALA ASN GLN LEU GLN PHE SER ASN SEQRES 4 A 219 GLU SER TYR ASP LEU ILE SER GLU SER LYS ASP PHE ASN SEQRES 5 A 219 LYS PHE SER ASN PHE LYS GLY LYS LYS LEU ASP VAL PHE SEQRES 6 A 219 GLY ILE SER TYR ASN GLY GLN CYS ASN THR LYS TYR ILE SEQRES 7 A 219 TYR GLY GLY VAL THR ALA THR ASN GLU TYR LEU ASP LYS SEQRES 8 A 219 SER ARG ASN ILE PRO ILE ASN ILE TRP ILE ASN GLY ASN SEQRES 9 A 219 HIS LYS THR ILE SER THR ASN LYS VAL SER THR ASN LYS SEQRES 10 A 219 LYS PHE VAL THR ALA GLN GLU ILE ASP VAL LYS LEU ARG SEQRES 11 A 219 LYS TYR LEU GLN GLU GLU TYR ASN ILE TYR GLY HIS ASN SEQRES 12 A 219 GLY THR LYS LYS GLY GLU GLU TYR GLY HIS LYS SER LYS SEQRES 13 A 219 PHE TYR SER GLY PHE ASN ILE GLY LYS VAL THR PHE HIS SEQRES 14 A 219 LEU ASN ASN ASN ASP THR PHE SER TYR ASP LEU PHE TYR SEQRES 15 A 219 THR GLY ASP ASP GLY LEU PRO LYS SER PHE LEU LYS ILE SEQRES 16 A 219 TYR GLU ASP ASN LYS THR VAL GLU SER GLU LYS PHE HIS SEQRES 17 A 219 LEU ASP VAL ASP ILE SER TYR LYS GLU THR ILE HET ZN A1001 1 HET IOD A2001 1 HET IOD A2002 1 HET IOD A2003 1 HET IOD A2004 1 HET IOD A2005 1 HETNAM ZN ZINC ION HETNAM IOD IODIDE ION FORMUL 2 ZN ZN 2+ FORMUL 3 IOD 5(I 1-) FORMUL 8 HOH *450(H2 O) HELIX 1 1 ASP A 3 LYS A 15 1 13 HELIX 2 2 ASP A 50 LYS A 58 1 9 HELIX 3 3 ALA A 122 ASN A 138 1 17 HELIX 4 4 GLY A 148 GLY A 152 5 5 HELIX 5 5 LEU A 188 LEU A 193 1 6 HELIX 6 6 LYS A 194 GLU A 197 5 4 SHEET 1 A 3 VAL A 19 LYS A 25 0 SHEET 2 A 3 LYS A 61 GLY A 66 -1 O LEU A 62 N VAL A 24 SHEET 3 A 3 VAL A 82 ALA A 84 -1 O THR A 83 N ASP A 63 SHEET 1 B 4 GLN A 34 SER A 38 0 SHEET 2 B 4 ASP A 43 GLU A 47 -1 O LEU A 44 N PHE A 37 SHEET 3 B 4 THR A 75 TYR A 79 1 O LYS A 76 N ILE A 45 SHEET 4 B 4 SER A 68 ASN A 70 -1 N TYR A 69 O TYR A 77 SHEET 1 C 2 TYR A 88 ASN A 94 0 SHEET 2 C 2 SER A 114 LYS A 117 -1 O THR A 115 N ARG A 93 SHEET 1 D 5 ASN A 104 ILE A 108 0 SHEET 2 D 5 ILE A 97 ILE A 101 -1 N ILE A 99 O LYS A 106 SHEET 3 D 5 PHE A 207 SER A 214 1 O LEU A 209 N ASN A 98 SHEET 4 D 5 ILE A 163 LEU A 170 -1 N HIS A 169 O HIS A 208 SHEET 5 D 5 THR A 175 ASP A 179 -1 O PHE A 176 N PHE A 168 SHEET 1 E 2 PHE A 119 THR A 121 0 SHEET 2 E 2 THR A 201 GLU A 203 -1 O VAL A 202 N VAL A 120 LINK ND1 HIS A 169 ZN ZN A1001 1555 1555 2.07 LINK NE2 HIS A 208 ZN ZN A1001 1555 1555 2.03 LINK OD2 ASP A 210 ZN ZN A1001 1555 1555 2.22 LINK ZN ZN A1001 O HOH A3240 1555 1555 2.02 SITE 1 AC1 4 HIS A 169 HIS A 208 ASP A 210 HOH A3240 SITE 1 AC2 4 GLY A 152 HIS A 153 PRO A 189 HOH A3067 SITE 1 AC3 6 ASN A 138 HIS A 142 HIS A 153 TYR A 158 SITE 2 AC3 6 HOH A3083 HOH A3412 SITE 1 AC4 2 LYS A 156 ASN A 162 SITE 1 AC5 2 ALA A 84 HOH A3414 SITE 1 AC6 4 THR A 175 PHE A 176 SER A 177 HOH A3066 CRYST1 46.829 53.652 92.940 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 0.021354 0.000000 0.000000 0.00000 SCALE2 0.000000 0.018639 0.000000 0.00000 SCALE3 0.000000 0.000000 0.010760 0.00000