3F9L - Header Asymmetric Unit

HEADER HYDROLASE 14-NOV-08 3F9L

TITLE EVAULAUTION AT ATOMIC RESOLUTION OF THE ROLE OF STRAIN IN TITLE 2 DESTABILIZING THE TEMPERATURE SENSITIVE T4 LYSOZYME MUTANT TITLE 3 ARG96-->HIS

COMPND MOL_ID: 1; COMPND 2 MOLECULE: LYSOZYME; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: LYSIS PROTEIN, MURAMIDASE, ENDOLYSIN; COMPND 5 EC: 3.2.1.17; COMPND 6 ENGINEERED: YES; COMPND 7 MUTATION: YES

SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ENTEROBACTERIA PHAGE T4; SOURCE 3 ORGANISM_COMMON: BACTERIOPHAGE T4; SOURCE 4 ORGANISM_TAXID: 10665; SOURCE 5 GENE: GENE E; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 8 EXPRESSION_SYSTEM_STRAIN: RR1; SOURCE 9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 10 EXPRESSION_SYSTEM_PLASMID: PHS1403

KEYWDS ANTIMICROBIAL, BACTERIOLYTIC ENZYME, GLYCOSIDASE, HYDROLASE, KEYWDS 2 T4 LYSOZYME, BOND ANGLE STRAIN, ROTAMER STRAIN, TEMPERATURE KEYWDS 3 SENSITIVE MUTANT

EXPDTA X-RAY DIFFRACTION

AUTHOR B.H.M MOOERS,B.W.MATTHEWS

REVDAT 2 05-MAY-09 3F9L 1 JRNL REVDAT 1 17-FEB-09 3F9L 0

JRNL AUTH B.H.MOOERS,D.E.TRONRUD,B.W.MATTHEWS JRNL TITL EVALUATION AT ATOMIC RESOLUTION OF THE ROLE OF JRNL TITL 2 STRAIN IN DESTABILIZING THE TEMPERATURE-SENSITIVE JRNL TITL 3 T4 LYSOZYME MUTANT ARG 96 --> HIS. JRNL REF PROTEIN SCI. V. 18 863 2009 JRNL REFN ISSN 0961-8368 JRNL PMID 19384984 JRNL DOI 10.1002/PRO.93

REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH B.H.MOOERS,W.A.BAASE,J.W.WRAY,B.W.MATTHEWS REMARK 1 TITL CONTRIBUTIONS OF ALL 20 AMINO ACIDS AT SITE 96 TO REMARK 1 TITL 2 THE STABILITY AND STRUCTURE OF T4 LYSOZYME. REMARK 1 REF PROTEIN SCI. V. 18 871 2009 REMARK 1 REFN ISSN 0961-8368 REMARK 1 PMID 19384988 REMARK 1 DOI 10.1002/PRO.94

REMARK 2 REMARK 2 RESOLUTION. 1.19 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) : 1.19 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 20.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 2.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 89.0 REMARK 3 CROSS-VALIDATION METHOD : FREE R 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) : 0.157 REMARK 3 R VALUE (WORKING SET, NO CUTOFF) : 0.148 REMARK 3 FREE R VALUE (NO CUTOFF) : 0.189 REMARK 3 FREE R VALUE TEST SET SIZE (%, NO CUTOFF) : 4.900 REMARK 3 FREE R VALUE TEST SET COUNT (NO CUTOFF) : 2873 REMARK 3 TOTAL NUMBER OF REFLECTIONS (NO CUTOFF) : 58461 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 : 1348 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 10 REMARK 3 SOLVENT ATOMS : 256 REMARK 3 REMARK 3 MODEL REFINEMENT. REMARK 3 OCCUPANCY SUM OF NON-HYDROGEN ATOMS : 1507.35 REMARK 3 OCCUPANCY SUM OF HYDROGEN ATOMS : 1281.00 REMARK 3 NUMBER OF DISCRETELY DISORDERED RESIDUES : 21 REMARK 3 NUMBER OF LEAST-SQUARES PARAMETERS : 14529 REMARK 3 NUMBER OF RESTRAINTS : 18092 REMARK 3 REMARK 3 RMS DEVIATIONS FROM RESTRAINT TARGET VALUES. REMARK 3 BOND LENGTHS (A) : 0.021 REMARK 3 ANGLE DISTANCES (A) : 0.029 REMARK 3 SIMILAR DISTANCES (NO TARGET VALUES) (A) : 0.000 REMARK 3 DISTANCES FROM RESTRAINT PLANES (A) : 0.025 REMARK 3 ZERO CHIRAL VOLUMES (A**3) : 0.069 REMARK 3 NON-ZERO CHIRAL VOLUMES (A**3) : 0.073 REMARK 3 ANTI-BUMPING DISTANCE RESTRAINTS (A) : 0.027 REMARK 3 RIGID-BOND ADP COMPONENTS (A**2) : 0.005 REMARK 3 SIMILAR ADP COMPONENTS (A**2) : 0.047 REMARK 3 APPROXIMATELY ISOTROPIC ADPS (A**2) : 0.088 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: ANISOTROPIC REFINEMENT REDUCED FREE REMARK 3 R (NO CUTOFF) BY 3.8%

REMARK 4 REMARK 4 3F9L COMPLIES WITH FORMAT V. 3.20, 01-DEC-08

REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 26-NOV-08. REMARK 100 THE RCSB ID CODE IS RCSB050318.

REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 07-FEB-02 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 6.7 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : SSRL REMARK 200 BEAMLINE : BL9-1 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.82653 REMARK 200 MONOCHROMATOR : SAGITALLY FOCUSED SI(111) 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 : MOSFLM REMARK 200 DATA SCALING SOFTWARE : SCALA REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 50477 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.190 REMARK 200 RESOLUTION RANGE LOW (A) : 20.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 2.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 89.0 REMARK 200 DATA REDUNDANCY : 4.700 REMARK 200 R MERGE (I) : 0.38000 REMARK 200 R SYM (I) : 0.38000 REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 18.8700 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.19 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.24 REMARK 200 COMPLETENESS FOR SHELL (%) : 88.9 REMARK 200 DATA REDUNDANCY IN SHELL : 3.50 REMARK 200 R MERGE FOR SHELL (I) : 0.21000 REMARK 200 R SYM FOR SHELL (I) : 0.36000 REMARK 200 <I/SIGMA(I)> FOR SHELL : 3.600 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: AB INITIO REMARK 200 SOFTWARE USED: SHELX REMARK 200 STARTING MODEL: 1L63 REMARK 200 REMARK 200 REMARK: NULL

REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 54.73 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.72 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 2M NA/K PHOSPHATE, PH 6.7, VAPOR REMARK 280 DIFFUSION, HANGING DROP, TEMPERATURE 277K

REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 32 2 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -Y,X-Y,Z+2/3 REMARK 290 3555 -X+Y,-X,Z+1/3 REMARK 290 4555 Y,X,-Z REMARK 290 5555 X-Y,-Y,-Z+1/3 REMARK 290 6555 -X,-X+Y,-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 64.49533 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 32.24767 REMARK 290 SMTRY1 4 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 4 0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 4 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 5 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 5 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 5 0.000000 0.000000 -1.000000 32.24767 REMARK 290 SMTRY1 6 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 6 -0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 6 0.000000 0.000000 -1.000000 64.49533 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 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 ASN A 163 REMARK 465 LEU A 164

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 16 CA REMARK 480 MET A 106 CA CB CG SD CE

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 20 -172.50 -69.15 REMARK 500 ILE A 29 73.88 -105.83 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 NA A 172 NA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 GLU A 11 O REMARK 620 2 TYR A 18 OH 82.0 REMARK 620 3 HOH A 207 O 85.5 164.3 REMARK 620 4 HOH A 204 O 131.0 84.8 110.7 REMARK 620 5 HOH A 263 O 63.2 105.5 60.0 164.4 REMARK 620 6 HOH A 304 O 133.9 112.4 70.3 94.7 70.7 REMARK 620 N 1 2 3 4 5 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 K A 174 K REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ILE A 58 O REMARK 620 2 HOH A 371 O 110.6 REMARK 620 3 HOH A 342 O 111.8 97.4 REMARK 620 N 1 2

REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE PO4 A 166 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NA A 172 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CL A 173 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE K A 174 REMARK 800 SITE_IDENTIFIER: AC5 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CL A 178

REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1L34 RELATED DB: PDB REMARK 900 MUTANT R96H LYSOZYME AT ROOM TEMPERATURE REMARK 900 RELATED ID: 1L63 RELATED DB: PDB REMARK 900 WILDTYPE T4 LYSOZYME AT ROOM TEMPERATURE REMARK 900 RELATED ID: 3C7W RELATED DB: PDB REMARK 900 MUTANT R96K LYSOZYME AT ROOM TEMPERATURE REMARK 900 RELATED ID: 3C7Y RELATED DB: PDB REMARK 900 MUTANT R96A OF T4 LYSOZYME IN WILDTYPE BACKGROUND AT 298K REMARK 900 RELATED ID: 3C7Z RELATED DB: PDB REMARK 900 MUTANT D89A/R96H LYSOZYME AT ROOM TEMPERATURE REMARK 900 RELATED ID: 3C80 RELATED DB: PDB REMARK 900 MUTANT R96Y LYSOZYME AT ROOM TEMPERATURE REMARK 900 RELATED ID: 3C81 RELATED DB: PDB REMARK 900 MUTANT K85A LYSOZYME AT ROOM TEMPERATURE REMARK 900 RELATED ID: 3C82 RELATED DB: PDB REMARK 900 MUTANT K85A/R96H LYSOZYME AT ROOM REMARK 900 RELATED ID: 3C83 RELATED DB: PDB REMARK 900 MUTANT D89A LYSOZYME AT ROOM TEMPERATURE REMARK 900 RELATED ID: 3C8Q RELATED DB: PDB REMARK 900 MUTANT R96D LYSOZYME AT ROOM TEMPERATURE REMARK 900 RELATED ID: 3C8R RELATED DB: PDB REMARK 900 MUTANT R96G LYSOZYME AT ROOM TEMPERATURE REMARK 900 RELATED ID: 3C8S RELATED DB: PDB REMARK 900 MUTANT R96E LYSOZYME AT ROOM TEMPERATURE REMARK 900 RELATED ID: 3CDO RELATED DB: PDB REMARK 900 MUTANT R96V LYSOZYME AT LOW TEMPERATURE REMARK 900 RELATED ID: 3CDQ RELATED DB: PDB REMARK 900 MUTANT R96S LYSOZYME AT ROOM TEMPERATURE REMARK 900 RELATED ID: 3CDR RELATED DB: PDB REMARK 900 MUTANT R96Q LYSOZYME AT ROOM TEMPERATURE REMARK 900 RELATED ID: 3CDT RELATED DB: PDB REMARK 900 MUTANT R96N LYSOZYME AT ROOM TEMPERATURE REMARK 900 RELATED ID: 3CDV RELATED DB: PDB REMARK 900 MUTANT R96M LYSOZYME AT ROOM TEMPERATURE REMARK 900 RELATED ID: 3F8V RELATED DB: PDB REMARK 900 R96H AT 1.08 ANG REMARK 900 RELATED ID: 3FA0 RELATED DB: PDB REMARK 900 WILD TYPE AT 1.09 ANG REMARK 900 RELATED ID: 3FAD RELATED DB: PDB REMARK 900 D72A/R96H AT 1.20 ANG REMARK 900 RELATED ID: 3FI5 RELATED DB: PDB REMARK 900 R96W AT 1.73 ANG

DBREF 3F9L A 1 164 UNP P00720 LYS_BPT4 1 164

SEQADV 3F9L ALA A 72 UNP P00720 ASP 72 ENGINEERED

SEQRES 1 A 164 MET ASN ILE PHE GLU MET LEU ARG ILE ASP GLU GLY LEU SEQRES 2 A 164 ARG LEU LYS ILE TYR LYS ASP THR GLU GLY TYR TYR THR SEQRES 3 A 164 ILE GLY ILE GLY HIS LEU LEU THR LYS SER PRO SER LEU SEQRES 4 A 164 ASN ALA ALA LYS SER GLU LEU ASP LYS ALA ILE GLY ARG SEQRES 5 A 164 ASN CYS ASN GLY VAL ILE THR LYS ASP GLU ALA GLU LYS SEQRES 6 A 164 LEU PHE ASN GLN ASP VAL ALA ALA ALA VAL ARG GLY ILE SEQRES 7 A 164 LEU ARG ASN ALA LYS LEU LYS PRO VAL TYR ASP SER LEU SEQRES 8 A 164 ASP ALA VAL ARG ARG CYS ALA LEU ILE ASN MET VAL PHE SEQRES 9 A 164 GLN MET GLY GLU THR GLY VAL ALA GLY PHE THR ASN SER SEQRES 10 A 164 LEU ARG MET LEU GLN GLN LYS ARG TRP ASP GLU ALA ALA SEQRES 11 A 164 VAL ASN LEU ALA LYS SER ARG TRP TYR ASN GLN THR PRO SEQRES 12 A 164 ASN ARG ALA LYS ARG VAL ILE THR THR PHE ARG THR GLY SEQRES 13 A 164 THR TRP ASP ALA TYR LYS ASN LEU

HET PO4 A 166 5 HET NA A 172 1 HET CL A 173 2 HET K A 174 1 HET CL A 178 1

HETNAM PO4 PHOSPHATE ION HETNAM NA SODIUM ION HETNAM CL CHLORIDE ION HETNAM K POTASSIUM ION

FORMUL 2 PO4 O4 P 3- FORMUL 3 NA NA 1+ FORMUL 4 CL 2(CL 1-) FORMUL 5 K K 1+ FORMUL 7 HOH *244(H2 O)

HELIX 1 1 ASN A 2 GLY A 12 1 11 HELIX 2 2 SER A 38 GLY A 51 1 14 HELIX 3 3 THR A 59 ASN A 81 1 23 HELIX 4 4 LYS A 83 LEU A 91 1 9 HELIX 5 5 ASP A 92 GLY A 107 1 16 HELIX 6 6 GLY A 107 GLY A 113 1 7 HELIX 7 7 PHE A 114 GLN A 123 1 10 HELIX 8 8 ARG A 125 ALA A 134 1 10 HELIX 9 9 SER A 136 THR A 142 1 7 HELIX 10 10 THR A 142 GLY A 156 1 15

SHEET 1 A 3 ARG A 14 LYS A 19 0 SHEET 2 A 3 TYR A 25 GLY A 28 -1 O THR A 26 N TYR A 18 SHEET 3 A 3 HIS A 31 LEU A 32 -1 O HIS A 31 N ILE A 27

LINK O GLU A 11 NA NA A 172 1555 1555 2.96 LINK OH TYR A 18 NA NA A 172 1555 1555 2.95 LINK O ILE A 58 K K A 174 1555 1555 2.72 LINK NA NA A 172 O HOH A 207 1555 1555 2.79 LINK NA NA A 172 O HOH A 204 1555 1555 2.83 LINK NA NA A 172 O HOH A 263 1555 1555 2.35 LINK NA NA A 172 O HOH A 304 1555 1555 2.90 LINK K K A 174 O HOH A 371 1555 1555 2.74 LINK K K A 174 O HOH A 342 1555 1555 2.64

SITE 1 AC1 9 ARG A 14 LYS A 19 ARG A 125 TRP A 126 SITE 2 AC1 9 ASP A 127 GLU A 128 HOH A 192 HOH A 247 SITE 3 AC1 9 HOH A 358 SITE 1 AC2 6 GLU A 11 TYR A 18 HOH A 204 HOH A 207 SITE 2 AC2 6 HOH A 263 HOH A 304 SITE 1 AC3 8 SER A 90 LYS A 124 THR A 142 PRO A 143 SITE 2 AC3 8 ASN A 144 ARG A 145 HOH A 209 HOH A 214 SITE 1 AC4 4 VAL A 57 ILE A 58 HOH A 342 HOH A 371 SITE 1 AC5 2 HIS A 31 LYS A 135

CRYST1 60.191 60.191 96.743 90.00 90.00 120.00 P 32 2 1 6

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 0.016614 0.009592 0.000000 0.00000

SCALE2 0.000000 0.019184 0.000000 0.00000

SCALE3 0.000000 0.000000 0.010337 0.00000