2BEB - Header Asymmetric Unit

HEADER HYDROLASE INHIBITOR 24-OCT-05 2BEB

TITLE X-RAY STRUCTURE OF ASN TO THR MUTANT OF WINGED BEAN TITLE 2 CHYMOTRYPSIN INHIBITOR

COMPND MOL_ID: 1; COMPND 2 MOLECULE: CHYMOTRYPSIN INHIBITOR 3; COMPND 3 CHAIN: A, B; COMPND 4 SYNONYM: WCI-3; COMPND 5 ENGINEERED: YES; COMPND 6 MUTATION: YES

SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: PSOPHOCARPUS TETRAGONOLOBUS; SOURCE 3 ORGANISM_COMMON: WINGED BEAN; SOURCE 4 ORGANISM_TAXID: 3891; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3); SOURCE 6 EXPRESSION_SYSTEM_TAXID: 469008; SOURCE 7 EXPRESSION_SYSTEM_STRAIN: BL21 (DE3); SOURCE 8 EXPRESSION_SYSTEM_VECTOR_TYPE: PET28A+

KEYWDS BETA BARREL, SPACER, MUTANT, HYDROLASE INHIBITOR

EXPDTA X-RAY DIFFRACTION

AUTHOR J.K.DATTAGUPTA,U.SEN,J.DASGUPTA,S.KHAMRUI

REVDAT 2 24-FEB-09 2BEB 1 VERSN REVDAT 1 13-JUN-06 2BEB 0

JRNL AUTH J.DASGUPTA,S.KHAMRUI,J.K.DATTAGUPTA,U.SEN JRNL TITL SPACER ASN DETERMINES THE FATE OF KUNITZ (STI) JRNL TITL 2 INHIBITORS, AS REVEALED BY STRUCTURAL AND JRNL TITL 3 BIOCHEMICAL STUDIES ON WCI MUTANTS. JRNL REF BIOCHEMISTRY V. 45 6783 2006 JRNL REFN ISSN 0006-2960 JRNL PMID 16734415 JRNL DOI 10.1021/BI060374Q

REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH S.KHAMRUI,J.DASGUPTA,J.K.DATTAGUPTA,U.SEN REMARK 1 TITL SINGLE MUTATION AT P1 OF A CHYMOTRYPSIN INHIBITOR REMARK 1 TITL 2 CHANGES IT TO A TRYPSIN INHIBITOR: X-RAY REMARK 1 TITL 3 STRUCTURAL (2.15 A) AND BIOCHEMICAL BASIS. REMARK 1 REF BIOCHIM.BIOPHYS.ACTA V.1752 65 2005 REMARK 1 REFN ISSN 0006-3002 REMARK 1 PMID 16081330 REMARK 1 DOI 10.1016/J.BBAPAP.2005.06.012

REMARK 2 REMARK 2 RESOLUTION. 2.81 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 : ENGH & HUBER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.81 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 14.91 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : 1945470.320 REMARK 3 DATA CUTOFF LOW (ABS(F)) : 0.0000 REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 94.4 REMARK 3 NUMBER OF REFLECTIONS : 9349 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) : 0.201 REMARK 3 FREE R VALUE : 0.254 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.400 REMARK 3 FREE R VALUE TEST SET COUNT : 502 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : 0.011 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) : 2.80 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.97 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 89.90 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 1366 REMARK 3 BIN R VALUE (WORKING SET) : 0.2780 REMARK 3 BIN FREE R VALUE : 0.2750 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 6.00 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 87 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : 0.029 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 2669 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 0 REMARK 3 SOLVENT ATOMS : 269 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 84.40 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 34.70 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 13.52000 REMARK 3 B22 (A**2) : -13.62000 REMARK 3 B33 (A**2) : 0.10000 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) : 0.32 REMARK 3 ESD FROM SIGMAA (A) : 0.34 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) : 0.42 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.30 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.007 REMARK 3 BOND ANGLES (DEGREES) : 1.80 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 27.10 REMARK 3 IMPROPER ANGLES (DEGREES) : 1.21 REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : RESTRAINED REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. RMS SIGMA REMARK 3 MAIN-CHAIN BOND (A**2) : 2.560 ; 1.500 REMARK 3 MAIN-CHAIN ANGLE (A**2) : 4.560 ; 2.000 REMARK 3 SIDE-CHAIN BOND (A**2) : 2.880 ; 2.000 REMARK 3 SIDE-CHAIN ANGLE (A**2) : 5.040 ; 2.500 REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED : FLAT MODEL REMARK 3 KSOL : 0.28 REMARK 3 BSOL : 24.08 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 : ION.PARAM REMARK 3 PARAMETER FILE 3 : WATER_REP.PARAM REMARK 3 PARAMETER FILE 4 : NULL REMARK 3 TOPOLOGY FILE 1 : PROTEIN.TOP REMARK 3 TOPOLOGY FILE 2 : ION.TOP REMARK 3 TOPOLOGY FILE 3 : WATER_REP.TOP REMARK 3 TOPOLOGY FILE 4 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL

REMARK 4 REMARK 4 2BEB COMPLIES WITH FORMAT V. 3.15, 01-DEC-08

REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 25-OCT-05. REMARK 100 THE RCSB ID CODE IS RCSB034993.

REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 15-FEB-04 REMARK 200 TEMPERATURE (KELVIN) : 100.0 REMARK 200 PH : 8.0 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 RU200 REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.54 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : MARRESEARCH REMARK 200 INTENSITY-INTEGRATION SOFTWARE : NULL REMARK 200 DATA SCALING SOFTWARE : NULL REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 9349 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.800 REMARK 200 RESOLUTION RANGE LOW (A) : 15.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 93.7 REMARK 200 DATA REDUNDANCY : NULL REMARK 200 R MERGE (I) : 0.12700 REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : NULL REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : NULL REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : NULL REMARK 200 COMPLETENESS FOR SHELL (%) : NULL 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 <I/SIGMA(I)> FOR SHELL : NULL REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: NULL REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL

REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 47.16 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.33 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 5% PEG 4000, 50 MM TRIS, PH 8.0, REMARK 280 VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 293.0K

REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 21 2 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,-Y,Z REMARK 290 3555 -X+1/2,Y+1/2,-Z 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 0.00000 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 40.75050 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 64.77350 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 40.75050 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 64.77350 REMARK 290 SMTRY3 4 0.000000 0.000000 -1.000000 0.00000 REMARK 290 REMARK 290 REMARK: NULL

REMARK 300 REMARK 300 BIOMOLECULE: 1, 2 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 350 REMARK 350 BIOMOLECULE: 2 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: B 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 MET A 1 REMARK 465 GLU A 2 REMARK 465 PHE A 3 REMARK 465 ASP A 4 REMARK 465 ASP A 5 REMARK 465 GLU A 142 REMARK 465 GLU A 143 REMARK 465 ASP A 144 REMARK 465 LYS A 179 REMARK 465 SER A 180 REMARK 465 GLU A 181 REMARK 465 THR A 182 REMARK 465 ALA A 183 REMARK 465 SER A 184 REMARK 465 SER A 185 REMARK 465 HIS A 186 REMARK 465 MET B 1 REMARK 465 GLU B 2 REMARK 465 PHE B 3 REMARK 465 ASP B 4 REMARK 465 ASP B 5 REMARK 465 LYS B 179 REMARK 465 SER B 180 REMARK 465 GLU B 181 REMARK 465 THR B 182 REMARK 465 ALA B 183 REMARK 465 SER B 184 REMARK 465 SER B 185 REMARK 465 HIS B 186

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 TRP A 28 CG CD1 CD2 NE1 CE2 CE3 CZ2 REMARK 470 TRP A 28 CZ3 CH2

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 ALA B 29 O HOH B 685 2.13 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 HIS B 140 CB - CA - C ANGL. DEV. = -12.2 DEGREES REMARK 500 ASP B 141 N - CA - C ANGL. DEV. = 17.9 DEGREES REMARK 500 HIS B 140 CA - C - N ANGL. DEV. = 13.4 DEGREES REMARK 500 ASP B 141 C - N - CA ANGL. DEV. = -23.6 DEGREES REMARK 500 THR B 166 N - CA - C ANGL. DEV. = 21.0 DEGREES REMARK 500 ASN B 169 N - CA - C ANGL. DEV. = 17.6 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 TRP A 28 40.56 -84.23 REMARK 500 GLU A 35 -164.46 -116.87 REMARK 500 ASN A 41 33.30 -92.06 REMARK 500 PRO A 45 85.79 -68.71 REMARK 500 SER A 56 114.91 -35.63 REMARK 500 SER A 87 -44.60 -27.34 REMARK 500 PRO A 103 109.59 -48.64 REMARK 500 SER A 126 6.95 -55.75 REMARK 500 ILE A 130 116.82 167.57 REMARK 500 GLN A 139 -158.36 -124.44 REMARK 500 LYS A 146 110.68 -169.19 REMARK 500 CYS A 147 77.59 -108.63 REMARK 500 HIS B 26 64.28 -115.46 REMARK 500 GLU B 35 -156.92 -144.12 REMARK 500 PRO B 45 86.81 -57.56 REMARK 500 GLU B 54 5.92 -65.45 REMARK 500 SER B 128 145.85 162.72 REMARK 500 HIS B 140 45.76 -101.31 REMARK 500 ASP B 141 70.85 -112.44 REMARK 500 GLU B 142 -6.32 58.65 REMARK 500 GLU B 143 -7.20 179.54 REMARK 500 ARG B 161 77.29 -109.80 REMARK 500 GLU B 168 -148.06 81.85 REMARK 500 ASN B 169 102.35 -18.74 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 435 DISTANCE = 6.75 ANGSTROMS REMARK 525 HOH B 434 DISTANCE = 7.16 ANGSTROMS REMARK 525 HOH B 438 DISTANCE = 5.97 ANGSTROMS REMARK 525 HOH B 445 DISTANCE = 5.51 ANGSTROMS REMARK 525 HOH B 465 DISTANCE = 9.25 ANGSTROMS REMARK 525 HOH B 470 DISTANCE = 5.37 ANGSTROMS REMARK 525 HOH B 498 DISTANCE = 6.13 ANGSTROMS REMARK 525 HOH A 559 DISTANCE = 5.24 ANGSTROMS REMARK 525 HOH A 600 DISTANCE = 7.11 ANGSTROMS REMARK 525 HOH B 595 DISTANCE = 5.75 ANGSTROMS REMARK 525 HOH B 618 DISTANCE = 6.34 ANGSTROMS REMARK 525 HOH B 641 DISTANCE = 11.58 ANGSTROMS REMARK 525 HOH B 651 DISTANCE = 11.28 ANGSTROMS REMARK 525 HOH B 657 DISTANCE = 6.96 ANGSTROMS REMARK 525 HOH B 696 DISTANCE = 8.86 ANGSTROMS REMARK 525 HOH B 711 DISTANCE = 7.16 ANGSTROMS

REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1EYL RELATED DB: PDB REMARK 900 RELATED ID: 1FMZ RELATED DB: PDB REMARK 900 RELATED ID: 2BEA RELATED DB: PDB

DBREF 2BEB A 4 186 UNP P10822 ICW3_PSOTE 25 207 DBREF 2BEB B 4 186 UNP P10822 ICW3_PSOTE 25 207

SEQADV 2BEB MET A 1 UNP P10822 CLONING ARTIFACT SEQADV 2BEB GLU A 2 UNP P10822 CLONING ARTIFACT SEQADV 2BEB PHE A 3 UNP P10822 CLONING ARTIFACT SEQADV 2BEB THR A 17 UNP P10822 ASN 38 ENGINEERED SEQADV 2BEB MET B 1 UNP P10822 CLONING ARTIFACT SEQADV 2BEB GLU B 2 UNP P10822 CLONING ARTIFACT SEQADV 2BEB PHE B 3 UNP P10822 CLONING ARTIFACT SEQADV 2BEB THR B 17 UNP P10822 ASN 38 ENGINEERED

SEQRES 1 A 186 MET GLU PHE ASP ASP ASP LEU VAL ASP ALA GLU GLY ASN SEQRES 2 A 186 LEU VAL GLU THR GLY GLY THR TYR TYR LEU LEU PRO HIS SEQRES 3 A 186 ILE TRP ALA HIS GLY GLY GLY ILE GLU THR ALA LYS THR SEQRES 4 A 186 GLY ASN GLU PRO CYS PRO LEU THR VAL VAL ARG SER PRO SEQRES 5 A 186 ASN GLU VAL SER LYS GLY GLU PRO ILE ARG ILE SER SER SEQRES 6 A 186 GLN PHE LEU SER LEU PHE ILE PRO ARG GLY SER LEU VAL SEQRES 7 A 186 ALA LEU GLY PHE ALA ASN PRO PRO SER CYS ALA ALA SER SEQRES 8 A 186 PRO TRP TRP THR VAL VAL ASP SER PRO GLN GLY PRO ALA SEQRES 9 A 186 VAL LYS LEU SER GLN GLN LYS LEU PRO GLU LYS ASP ILE SEQRES 10 A 186 LEU VAL PHE LYS PHE GLU LYS VAL SER HIS SER ASN ILE SEQRES 11 A 186 HIS VAL TYR LYS LEU LEU TYR CYS GLN HIS ASP GLU GLU SEQRES 12 A 186 ASP VAL LYS CYS ASP GLN TYR ILE GLY ILE HIS ARG ASP SEQRES 13 A 186 ARG ASN GLY ASN ARG ARG LEU VAL VAL THR GLU GLU ASN SEQRES 14 A 186 PRO LEU GLU LEU VAL LEU LEU LYS ALA LYS SER GLU THR SEQRES 15 A 186 ALA SER SER HIS SEQRES 1 B 186 MET GLU PHE ASP ASP ASP LEU VAL ASP ALA GLU GLY ASN SEQRES 2 B 186 LEU VAL GLU THR GLY GLY THR TYR TYR LEU LEU PRO HIS SEQRES 3 B 186 ILE TRP ALA HIS GLY GLY GLY ILE GLU THR ALA LYS THR SEQRES 4 B 186 GLY ASN GLU PRO CYS PRO LEU THR VAL VAL ARG SER PRO SEQRES 5 B 186 ASN GLU VAL SER LYS GLY GLU PRO ILE ARG ILE SER SER SEQRES 6 B 186 GLN PHE LEU SER LEU PHE ILE PRO ARG GLY SER LEU VAL SEQRES 7 B 186 ALA LEU GLY PHE ALA ASN PRO PRO SER CYS ALA ALA SER SEQRES 8 B 186 PRO TRP TRP THR VAL VAL ASP SER PRO GLN GLY PRO ALA SEQRES 9 B 186 VAL LYS LEU SER GLN GLN LYS LEU PRO GLU LYS ASP ILE SEQRES 10 B 186 LEU VAL PHE LYS PHE GLU LYS VAL SER HIS SER ASN ILE SEQRES 11 B 186 HIS VAL TYR LYS LEU LEU TYR CYS GLN HIS ASP GLU GLU SEQRES 12 B 186 ASP VAL LYS CYS ASP GLN TYR ILE GLY ILE HIS ARG ASP SEQRES 13 B 186 ARG ASN GLY ASN ARG ARG LEU VAL VAL THR GLU GLU ASN SEQRES 14 B 186 PRO LEU GLU LEU VAL LEU LEU LYS ALA LYS SER GLU THR SEQRES 15 B 186 ALA SER SER HIS

FORMUL 3 HOH *269(H2 O)

HELIX 1 1 PRO A 113 ILE A 117 5 5 HELIX 2 2 PRO B 113 ILE B 117 5 5

SHEET 1 A 4 VAL A 78 PHE A 82 0 SHEET 2 A 4 ILE A 61 SER A 65 -1 N ARG A 62 O GLY A 81 SHEET 3 A 4 THR A 20 PRO A 25 -1 N TYR A 21 O ILE A 61 SHEET 4 A 4 LEU A 173 LYS A 177 -1 O LEU A 176 N TYR A 22 SHEET 1 B 6 ILE A 34 ALA A 37 0 SHEET 2 B 6 THR A 47 ARG A 50 -1 O VAL A 49 N GLU A 35 SHEET 3 B 6 ARG A 161 VAL A 165 -1 O ARG A 161 N ARG A 50 SHEET 4 B 6 LYS A 146 ARG A 155 -1 N GLY A 152 O VAL A 164 SHEET 5 B 6 TYR A 133 GLN A 139 -1 N LEU A 135 O ILE A 151 SHEET 6 B 6 PHE A 120 LYS A 124 -1 N LYS A 121 O LEU A 136 SHEET 1 C 2 SER A 91 VAL A 97 0 SHEET 2 C 2 ALA A 104 SER A 108 -1 O LYS A 106 N THR A 95 SHEET 1 D 9 ARG B 161 VAL B 165 0 SHEET 2 D 9 GLN B 149 ARG B 155 -1 N GLY B 152 O VAL B 164 SHEET 3 D 9 VAL B 132 TYR B 137 -1 N LEU B 135 O ILE B 151 SHEET 4 D 9 GLU B 172 LYS B 177 -1 O LEU B 173 N TYR B 133 SHEET 5 D 9 THR B 20 PRO B 25 -1 N TYR B 22 O LEU B 176 SHEET 6 D 9 ILE B 61 SER B 65 -1 O ILE B 61 N TYR B 21 SHEET 7 D 9 VAL B 78 PHE B 82 -1 O GLY B 81 N ARG B 62 SHEET 8 D 9 PHE B 120 LYS B 124 -1 O PHE B 120 N VAL B 78 SHEET 9 D 9 VAL B 132 TYR B 137 -1 O LEU B 136 N LYS B 121 SHEET 1 E 2 ILE B 34 ALA B 37 0 SHEET 2 E 2 THR B 47 ARG B 50 -1 O VAL B 49 N GLU B 35 SHEET 1 F 2 THR B 95 VAL B 97 0 SHEET 2 F 2 ALA B 104 LYS B 106 -1 O ALA B 104 N VAL B 97

SSBOND 1 CYS A 44 CYS A 88 1555 1555 2.02 SSBOND 2 CYS A 138 CYS A 147 1555 1555 2.03 SSBOND 3 CYS B 44 CYS B 88 1555 1555 2.03 SSBOND 4 CYS B 138 CYS B 147 1555 1555 2.03

CRYST1 81.501 129.547 36.464 90.00 90.00 90.00 P 21 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 0.012270 0.000000 0.000000 0.00000

SCALE2 0.000000 0.007719 0.000000 0.00000

SCALE3 0.000000 0.000000 0.027424 0.00000