1I8U - Header Asymmetric Unit

HEADER HYDROLASE 16-MAR-01 1I8U

TITLE FAMILY 9 CARBOHYDRATE-BINDING MODULE FROM THERMOTOGA TITLE 2 MARITIMA XYLANASE 10A

COMPND MOL_ID: 1; COMPND 2 MOLECULE: ENDO-1,4-BETA-XYLANASE A; COMPND 3 CHAIN: A; COMPND 4 FRAGMENT: C2 DOMAIN (RESIDUES 871-1059); COMPND 5 SYNONYM: XYLANASE A; COMPND 6 EC: 3.2.1.8; COMPND 7 ENGINEERED: YES

SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: THERMOTOGA MARITIMA; SOURCE 3 ORGANISM_TAXID: 2336; SOURCE 4 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 5 EXPRESSION_SYSTEM_TAXID: 562

KEYWDS CBM9-2, CELLULOSE BINDING DOMAIN, HYDROLASE

EXPDTA X-RAY DIFFRACTION

AUTHOR V.NOTENBOOM,A.B.BORASTON,R.A.J.WARREN,D.G.KILBURN,D.R.ROSE

REVDAT 3 24-FEB-09 1I8U 1 VERSN REVDAT 2 01-APR-03 1I8U 1 JRNL REVDAT 1 13-JUN-01 1I8U 0

JRNL AUTH V.NOTENBOOM,A.B.BORASTON,D.G.KILBURN,D.R.ROSE JRNL TITL CRYSTAL STRUCTURES OF THE FAMILY 9 JRNL TITL 2 CARBOHYDRATE-BINDING MODULE FROM THERMOTOGA JRNL TITL 3 MARITIMA XYLANASE 10A IN NATIVE AND LIGAND-BOUND JRNL TITL 4 FORMS. JRNL REF BIOCHEMISTRY V. 40 6248 2001 JRNL REFN ISSN 0006-2960 JRNL PMID 11371186 JRNL DOI 10.1021/BI0101704

REMARK 1

REMARK 2 REMARK 2 RESOLUTION. 1.90 ANGSTROMS.

REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CNS 1.0 REMARK 3 AUTHORS : BRUNGER,ADAMS,CLORE,DELANO,GROS,GROSSE- REMARK 3 : KUNSTLEVE,JIANG,KUSZEWSKI,NILGES, PANNU, REMARK 3 : READ,RICE,SIMONSON,WARREN REMARK 3 REMARK 3 REFINEMENT TARGET : CNS REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.90 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 20.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : 296530.270 REMARK 3 DATA CUTOFF LOW (ABS(F)) : 0.0000 REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 96.4 REMARK 3 NUMBER OF REFLECTIONS : 15055 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 SET) : 0.209 REMARK 3 FREE R VALUE : 0.237 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 10.100 REMARK 3 FREE R VALUE TEST SET COUNT : 1522 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : 0.006 REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : 6 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 1.90 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.02 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 63.60 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 1514 REMARK 3 BIN R VALUE (WORKING SET) : 0.2430 REMARK 3 BIN FREE R VALUE : 0.2840 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 10.00 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 169 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : 0.022 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1484 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 3 REMARK 3 SOLVENT ATOMS : 156 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 6.30 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 14.90 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : -0.11000 REMARK 3 B22 (A**2) : -0.11000 REMARK 3 B33 (A**2) : 0.22000 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 COORDINATE ERROR. REMARK 3 ESD FROM LUZZATI PLOT (A) : 0.23 REMARK 3 ESD FROM SIGMAA (A) : 0.14 REMARK 3 LOW RESOLUTION CUTOFF (A) : 5.00 REMARK 3 REMARK 3 CROSS-VALIDATED ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM C-V LUZZATI PLOT (A) : 0.26 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.17 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.005 REMARK 3 BOND ANGLES (DEGREES) : 1.40 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 27.30 REMARK 3 IMPROPER ANGLES (DEGREES) : 0.77 REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : OVERALL REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. RMS SIGMA REMARK 3 MAIN-CHAIN BOND (A**2) : NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE (A**2) : NULL ; NULL REMARK 3 SIDE-CHAIN BOND (A**2) : NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE (A**2) : NULL ; NULL REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED : FLAT MODEL REMARK 3 KSOL : 0.45 REMARK 3 BSOL : 59.95 REMARK 3 REMARK 3 NCS MODEL : NULL REMARK 3 REMARK 3 NCS RESTRAINTS. RMS SIGMA/WEIGHT REMARK 3 GROUP 1 POSITIONAL (A) : NULL ; NULL REMARK 3 GROUP 1 B-FACTOR (A**2) : NULL ; NULL REMARK 3 REMARK 3 PARAMETER FILE 1 : PROTEIN_REP.PARAM REMARK 3 PARAMETER FILE 2 : WATER_REP.PARAM REMARK 3 PARAMETER FILE 3 : ION.PARAM REMARK 3 PARAMETER FILE 4 : CARBOHYDRATE.PARAM REMARK 3 PARAMETER FILE 5 : NULL REMARK 3 TOPOLOGY FILE 1 : PROTEIN.TOP REMARK 3 TOPOLOGY FILE 2 : CARBOHYDRATE.TOP REMARK 3 TOPOLOGY FILE 3 : WATER_REP.TOP REMARK 3 TOPOLOGY FILE 4 : ION.TOP REMARK 3 TOPOLOGY FILE 5 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL

REMARK 4 REMARK 4 1I8U COMPLIES WITH FORMAT V. 3.15, 01-DEC-08

REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 21-MAR-01. REMARK 100 THE RCSB ID CODE IS RCSB013049.

REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 15-AUG-99 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 4.6 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : N REMARK 200 RADIATION SOURCE : ROTATING ANODE REMARK 200 BEAMLINE : NULL REMARK 200 X-RAY GENERATOR MODEL : RIGAKU REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.54 REMARK 200 MONOCHROMATOR : NI FILTER REMARK 200 OPTICS : OSMIC MIRROR REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : MARRESEARCH REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 90745 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.900 REMARK 200 RESOLUTION RANGE LOW (A) : 20.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 97.7 REMARK 200 DATA REDUNDANCY : 5.800 REMARK 200 R MERGE (I) : 0.06500 REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 8.8000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.90 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.02 REMARK 200 COMPLETENESS FOR SHELL (%) : 63.6 REMARK 200 DATA REDUNDANCY IN SHELL : 3.20 REMARK 200 R MERGE FOR SHELL (I) : 0.04700 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 <I/SIGMA(I)> FOR SHELL : NULL REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MAD REMARK 200 SOFTWARE USED: SOLVE/RESOLVE REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL

REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 46.45 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.30 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: NA ACETATE, P8K, PH 4.6, VAPOR REMARK 280 DIFFUSION, HANGING DROP, TEMPERATURE 298K

REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 41 21 2 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,-Y,Z+1/2 REMARK 290 3555 -Y+1/2,X+1/2,Z+1/4 REMARK 290 4555 Y+1/2,-X+1/2,Z+3/4 REMARK 290 5555 -X+1/2,Y+1/2,-Z+1/4 REMARK 290 6555 X+1/2,-Y+1/2,-Z+3/4 REMARK 290 7555 Y,X,-Z REMARK 290 8555 -Y,-X,-Z+1/2 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 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 61.28500 REMARK 290 SMTRY1 3 0.000000 -1.000000 0.000000 28.28000 REMARK 290 SMTRY2 3 1.000000 0.000000 0.000000 28.28000 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 30.64250 REMARK 290 SMTRY1 4 0.000000 1.000000 0.000000 28.28000 REMARK 290 SMTRY2 4 -1.000000 0.000000 0.000000 28.28000 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 91.92750 REMARK 290 SMTRY1 5 -1.000000 0.000000 0.000000 28.28000 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 28.28000 REMARK 290 SMTRY3 5 0.000000 0.000000 -1.000000 30.64250 REMARK 290 SMTRY1 6 1.000000 0.000000 0.000000 28.28000 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 28.28000 REMARK 290 SMTRY3 6 0.000000 0.000000 -1.000000 91.92750 REMARK 290 SMTRY1 7 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY2 7 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 7 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 8 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY2 8 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 8 0.000000 0.000000 -1.000000 61.28500 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 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 MET A 0 CG SD CE REMARK 470 LYS A 37 CG CD CE NZ REMARK 470 LYS A 139 CG CD CE NZ REMARK 470 ARG A 185 CG CD NE CZ NH1 NH2 REMARK 470 LYS A 188 CG CD CE NZ

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 12 -1.45 -157.05 REMARK 500 ASP A 60 107.98 -160.46 REMARK 500 LYS A 65 28.25 -143.03 REMARK 500 ASN A 143 7.82 81.39 REMARK 500 ARG A 176 -7.34 -141.66 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 A 260 DISTANCE = 5.21 ANGSTROMS REMARK 525 HOH A 270 DISTANCE = 6.65 ANGSTROMS

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 CA A 189 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASP A 81 OD1 REMARK 620 2 ASP A 93 OD1 86.0 REMARK 620 3 ASP A 94 OD1 78.5 86.4 REMARK 620 4 ASP A 93 OD2 138.1 52.3 99.6 REMARK 620 5 ASP A 94 OD2 116.6 114.5 47.1 88.0 REMARK 620 6 ASN A 83 OD1 71.5 80.0 147.7 94.9 162.9 REMARK 620 7 GLU A 91 OE1 132.6 122.4 134.2 78.0 87.3 76.9 REMARK 620 8 HOH A 199 O 78.5 164.4 89.0 143.3 72.1 96.3 70.8 REMARK 620 N 1 2 3 4 5 6 7 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CA A 190 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 GLU A 14 O REMARK 620 2 ASP A 12 OD1 88.0 REMARK 620 3 ASP A 16 OD1 82.1 154.9 REMARK 620 4 VAL A 10 O 167.0 91.4 103.2 REMARK 620 5 HOH A 229 O 95.8 73.4 84.6 96.5 REMARK 620 6 GLU A 130 OE1 90.8 77.8 125.2 76.5 150.2 REMARK 620 7 GLU A 130 OE2 85.2 127.0 75.3 84.7 159.6 49.9 REMARK 620 N 1 2 3 4 5 6 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CA A 191 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASP A 60 OD1 REMARK 620 2 ASP A 60 OD2 51.1 REMARK 620 3 ASP A 74 OD2 121.2 79.9 REMARK 620 4 HOH A 214 O 82.6 132.0 145.1 REMARK 620 5 ALA A 155 O 156.0 152.4 79.6 73.5 REMARK 620 6 ASP A 74 OD1 120.6 71.3 49.5 142.9 81.4 REMARK 620 7 ASP A 154 OD1 87.3 91.4 129.2 71.8 87.4 80.3 REMARK 620 8 VAL A 62 O 80.0 94.7 73.1 88.2 96.8 122.1 157.6 REMARK 620 N 1 2 3 4 5 6 7

REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 189 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 190 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 191

REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1I82 RELATED DB: PDB REMARK 900 FAMILY 9 CARBOHYDRATE-BINDING MODULE FROM THERMOTOGA REMARK 900 MARITIMA XYLANASE 10A WITH CELLOBIOSE REMARK 900 RELATED ID: 1I8A RELATED DB: PDB REMARK 900 FAMILY 9 CARBOHYDRATE-BINDING MODULE FROM THERMOTOGA REMARK 900 MARITIMA XYLANASE 10A WITH GLUCOSE

DBREF 1I8U A 0 188 UNP Q60037 XYNA_THEMA 871 1059

SEQRES 1 A 189 MET VAL ALA THR ALA LYS TYR GLY THR PRO VAL ILE ASP SEQRES 2 A 189 GLY GLU ILE ASP GLU ILE TRP ASN THR THR GLU GLU ILE SEQRES 3 A 189 GLU THR LYS ALA VAL ALA MET GLY SER LEU ASP LYS ASN SEQRES 4 A 189 ALA THR ALA LYS VAL ARG VAL LEU TRP ASP GLU ASN TYR SEQRES 5 A 189 LEU TYR VAL LEU ALA ILE VAL LYS ASP PRO VAL LEU ASN SEQRES 6 A 189 LYS ASP ASN SER ASN PRO TRP GLU GLN ASP SER VAL GLU SEQRES 7 A 189 ILE PHE ILE ASP GLU ASN ASN HIS LYS THR GLY TYR TYR SEQRES 8 A 189 GLU ASP ASP ASP ALA GLN PHE ARG VAL ASN TYR MET ASN SEQRES 9 A 189 GLU GLN THR PHE GLY THR GLY GLY SER PRO ALA ARG PHE SEQRES 10 A 189 LYS THR ALA VAL LYS LEU ILE GLU GLY GLY TYR ILE VAL SEQRES 11 A 189 GLU ALA ALA ILE LYS TRP LYS THR ILE LYS PRO THR PRO SEQRES 12 A 189 ASN THR VAL ILE GLY PHE ASN ILE GLN VAL ASN ASP ALA SEQRES 13 A 189 ASN GLU LYS GLY GLN ARG VAL GLY ILE ILE SER TRP SER SEQRES 14 A 189 ASP PRO THR ASN ASN SER TRP ARG ASP PRO SER LYS PHE SEQRES 15 A 189 GLY ASN LEU ARG LEU ILE LYS

HET CA A 189 1 HET CA A 190 1 HET CA A 191 1

HETNAM CA CALCIUM ION

FORMUL 2 CA 3(CA 2+) FORMUL 5 HOH *156(H2 O)

HELIX 1 1 ASP A 16 THR A 22 5 7 HELIX 2 2 ASN A 69 GLN A 73 5 5 HELIX 3 3 SER A 112 ALA A 114 5 3 HELIX 4 4 ASP A 177 PHE A 181 5 5

SHEET 1 A17 ALA A 29 MET A 32 0 SHEET 2 A17 ARG A 161 SER A 166 -1 O ILE A 164 N ALA A 31 SHEET 3 A17 THR A 144 ALA A 155 -1 N VAL A 152 O ILE A 165 SHEET 4 A17 SER A 75 ASP A 81 -1 O SER A 75 N ASN A 153 SHEET 5 A17 ASP A 94 ASN A 100 -1 O ALA A 95 N ILE A 80 SHEET 6 A17 GLN A 105 PHE A 107 -1 N THR A 106 O ARG A 98 SHEET 7 A17 ASP A 94 ASN A 100 -1 O ARG A 98 N THR A 106 SHEET 8 A17 SER A 75 ASP A 81 -1 N VAL A 76 O VAL A 99 SHEET 9 A17 THR A 144 ALA A 155 -1 N GLY A 147 O ASP A 81 SHEET 10 A17 GLY A 182 ILE A 187 -1 N GLY A 182 O PHE A 148 SHEET 11 A17 VAL A 1 TYR A 6 1 O ALA A 2 N ARG A 185 SHEET 12 A17 THR A 40 TRP A 47 1 O VAL A 45 N LYS A 5 SHEET 13 A17 GLU A 24 GLU A 26 -1 O ILE A 25 N VAL A 43 SHEET 14 A17 THR A 40 TRP A 47 -1 N VAL A 43 O ILE A 25 SHEET 15 A17 TYR A 51 LYS A 59 -1 N TYR A 53 O LEU A 46 SHEET 16 A17 GLY A 126 LYS A 134 -1 O TYR A 127 N VAL A 58 SHEET 17 A17 PHE A 116 ILE A 123 -1 O LYS A 117 N ALA A 132

LINK CA CA A 189 OD1 ASP A 81 1555 1555 2.47 LINK CA CA A 189 OD1 ASP A 93 1555 1555 2.47 LINK CA CA A 189 OD1 ASP A 94 1555 1555 2.39 LINK CA CA A 189 OD2 ASP A 93 1555 1555 2.53 LINK CA CA A 189 OD2 ASP A 94 1555 1555 2.98 LINK CA CA A 189 OD1 ASN A 83 1555 1555 2.50 LINK CA CA A 189 OE1 GLU A 91 1555 1555 2.71 LINK CA CA A 189 O HOH A 199 1555 1555 2.67 LINK CA CA A 190 O GLU A 14 1555 1555 2.36 LINK CA CA A 190 OD1 ASP A 12 1555 1555 2.48 LINK CA CA A 190 OD1 ASP A 16 1555 1555 2.49 LINK CA CA A 190 O VAL A 10 1555 1555 2.30 LINK CA CA A 190 O HOH A 229 1555 1555 2.52 LINK CA CA A 190 OE1 GLU A 130 1555 1555 2.56 LINK CA CA A 190 OE2 GLU A 130 1555 1555 2.67 LINK CA CA A 191 OD1 ASP A 60 1555 1555 2.58 LINK CA CA A 191 OD2 ASP A 60 1555 1555 2.53 LINK CA CA A 191 OD2 ASP A 74 1555 1555 2.71 LINK CA CA A 191 O HOH A 214 1555 1555 2.73 LINK CA CA A 191 O ALA A 155 1555 1555 2.60 LINK CA CA A 191 OD1 ASP A 74 1555 1555 2.58 LINK CA CA A 191 OD1 ASP A 154 1555 1555 2.38 LINK CA CA A 191 O VAL A 62 1555 1555 2.36

SITE 1 AC1 6 ASP A 81 ASN A 83 GLU A 91 ASP A 93 SITE 2 AC1 6 ASP A 94 HOH A 199 SITE 1 AC2 6 VAL A 10 ASP A 12 GLU A 14 ASP A 16 SITE 2 AC2 6 GLU A 130 HOH A 229 SITE 1 AC3 6 ASP A 60 VAL A 62 ASP A 74 ASP A 154 SITE 2 AC3 6 ALA A 155 HOH A 214

CRYST1 56.560 56.560 122.570 90.00 90.00 90.00 P 41 21 2 8

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 0.017680 0.000000 0.000000 0.00000

SCALE2 0.000000 0.017680 0.000000 0.00000

SCALE3 0.000000 0.000000 0.008159 0.00000