1BIO - Header Asymmetric Unit

HEADER SERINE PROTEASE 18-JUN-98 1BIO

TITLE HUMAN COMPLEMENT FACTOR D IN COMPLEX WITH ISATOIC ANHYDRIDE INHIBITOR

COMPND MOL_ID: 1; COMPND 2 MOLECULE: COMPLEMENT FACTOR D; COMPND 3 CHAIN: A; COMPND 4 EC: 3.4.21.46; COMPND 5 OTHER_DETAILS: ISATOIC ANHYDRIDE ACYLATES ACTIVE SITE SER 195

SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: HOMO SAPIENS; SOURCE 3 ORGANISM_COMMON: HUMAN; SOURCE 4 ORGANISM_TAXID: 9606

KEYWDS SERINE PROTEASE, HYDROLASE, COMPLEMENT, FACTOR D, CATALYTIC TRIAD, KEYWDS 2 SELF-REGULATION

EXPDTA X-RAY DIFFRACTION

AUTHOR H.JING,Y.S.BABU,D.MOORE,J.M.KILPATRICK,X.-Y.LIU,J.E.VOLANAKIS, AUTHOR 2 S.V.L.NARAYANA

REVDAT 3 13-JUL-11 1BIO 1 VERSN REVDAT 2 24-FEB-09 1BIO 1 VERSN REVDAT 1 22-JUN-99 1BIO 0

JRNL AUTH H.JING,Y.S.BABU,D.MOORE,J.M.KILPATRICK,X.Y.LIU, JRNL AUTH 2 J.E.VOLANAKIS,S.V.NARAYANA JRNL TITL STRUCTURES OF NATIVE AND COMPLEXED COMPLEMENT FACTOR D: JRNL TITL 2 IMPLICATIONS OF THE ATYPICAL HIS57 CONFORMATION AND JRNL TITL 3 SELF-INHIBITORY LOOP IN THE REGULATION OF SPECIFIC SERINE JRNL TITL 4 PROTEASE ACTIVITY. JRNL REF J.MOL.BIOL. V. 282 1061 1998 JRNL REFN ISSN 0022-2836 JRNL PMID 9753554 JRNL DOI 10.1006/JMBI.1998.2089

REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH J.E.VOLANAKIS,S.V.NARAYANA REMARK 1 TITL COMPLEMENT FACTOR D, A NOVEL SERINE PROTEASE REMARK 1 REF PROTEIN SCI. V. 5 553 1996 REMARK 1 REFN ISSN 0961-8368 REMARK 1 REFERENCE 2 REMARK 1 AUTH S.KIM,S.V.NARAYANA,J.E.VOLANAKIS REMARK 1 TITL CRYSTAL STRUCTURE OF A COMPLEMENT FACTOR D MUTANT EXPRESSING REMARK 1 TITL 2 ENHANCED CATALYTIC ACTIVITY REMARK 1 REF J.BIOL.CHEM. V. 270 24399 1995 REMARK 1 REFN ISSN 0021-9258 REMARK 1 REFERENCE 3 REMARK 1 AUTH S.KIM,S.V.NARAYANA,J.E.VOLANAKIS REMARK 1 TITL ERRATUM. CRYSTAL STRUCTURE OF A COMPLEMENT FACTOR D MUTANT REMARK 1 TITL 2 EXPRESSING ENHANCED CATALYTIC ACTIVITY REMARK 1 REF J.BIOL.CHEM. V. 270 31414 1995 REMARK 1 REFN ISSN 0021-9258 REMARK 1 REFERENCE 4 REMARK 1 AUTH S.V.NARAYANA,M.CARSON,O.EL-KABBANI,J.M.KILPATRICK,D.MOORE, REMARK 1 AUTH 2 X.CHEN,C.E.BUGG,J.E.VOLANAKIS,L.J.DELUCAS REMARK 1 TITL STRUCTURE OF HUMAN FACTOR D. A COMPLEMENT SYSTEM PROTEIN AT REMARK 1 TITL 2 2.0 A RESOLUTION REMARK 1 REF J.MOL.BIOL. V. 235 695 1994 REMARK 1 REFN ISSN 0022-2836 REMARK 1 REFERENCE 5 REMARK 1 AUTH S.V.NARAYANA,J.M.KILPATRICK,O.EL-KABBANI,Y.S.BABU,C.E.BUGG, REMARK 1 AUTH 2 J.E.VOLANAKIS,L.J.DELUCAS REMARK 1 TITL CRYSTALLIZATION AND PRELIMINARY X-RAY INVESTIGATION OF REMARK 1 TITL 2 FACTOR D OF HUMAN COMPLEMENT REMARK 1 REF J.MOL.BIOL. V. 219 1 1991 REMARK 1 REFN ISSN 0022-2836

REMARK 2 REMARK 2 RESOLUTION. 1.50 ANGSTROMS.

REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : X-PLOR 3.851 REMARK 3 AUTHORS : BRUNGER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.50 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 20.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 2.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : 1000000.000 REMARK 3 DATA CUTOFF LOW (ABS(F)) : 0.0010 REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 94.0 REMARK 3 NUMBER OF REFLECTIONS : 31181 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) : 0.186 REMARK 3 FREE R VALUE : 0.191 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 10.000 REMARK 3 FREE R VALUE TEST SET COUNT : 3159 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : 0.004 REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : 8 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 1.50 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.57 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 85.00 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 3166 REMARK 3 BIN R VALUE (WORKING SET) : 0.3030 REMARK 3 BIN FREE R VALUE : 0.3250 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 10.00 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 349 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : 0.017 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1712 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 15 REMARK 3 SOLVENT ATOMS : 286 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 17.80 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 17.30 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : NULL REMARK 3 B22 (A**2) : NULL REMARK 3 B33 (A**2) : NULL REMARK 3 B12 (A**2) : NULL REMARK 3 B13 (A**2) : NULL REMARK 3 B23 (A**2) : NULL REMARK 3 REMARK 3 ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM LUZZATI PLOT (A) : 0.17 REMARK 3 ESD FROM SIGMAA (A) : 0.16 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) : 0.18 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.17 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.009 REMARK 3 BOND ANGLES (DEGREES) : 1.56 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 27.57 REMARK 3 IMPROPER ANGLES (DEGREES) : 1.17 REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : NULL 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 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 : ISA.PAR REMARK 3 PARAMETER FILE 3 : GLC.PAR REMARK 3 PARAMETER FILE 4 : NULL REMARK 3 PARAMETER FILE 5 : NULL REMARK 3 TOPOLOGY FILE 1 : TOPHCSDX.PRO REMARK 3 TOPOLOGY FILE 2 : TOPH19.SOL REMARK 3 TOPOLOGY FILE 3 : TOPH19.PEP REMARK 3 TOPOLOGY FILE 4 : ISA.TOP & GLC.TOP REMARK 3 TOPOLOGY FILE 5 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: BULK SOLVENT CORRECTION WAS APPLIED

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

REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY BNL.

REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : JAN-97 REMARK 200 TEMPERATURE (KELVIN) : 95 REMARK 200 PH : 6.4 REMARK 200 NUMBER OF CRYSTALS USED : 2 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 RUH2R REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418 REMARK 200 MONOCHROMATOR : GRAPHITE(002) REMARK 200 OPTICS : MIRRORS REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : RIGAKU RAXIS IV REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 31552 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.500 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 (%) : 95.0 REMARK 200 DATA REDUNDANCY : 4.100 REMARK 200 R MERGE (I) : 0.05100 REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 29.0000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.50 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.55 REMARK 200 COMPLETENESS FOR SHELL (%) : 90.0 REMARK 200 DATA REDUNDANCY IN SHELL : 4.00 REMARK 200 R MERGE FOR SHELL (I) : 0.25300 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 <I/SIGMA(I)> FOR SHELL : 5.500 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: NULL REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: AMORE REMARK 200 STARTING MODEL: PDB ENTRY 1DSU MOLECULE B REMARK 200 REMARK 200 REMARK: NULL

REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 44.00 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.15 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PH 6.4

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 24.95500 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 429 O HOH A 449 1.80 REMARK 500 O HOH A 454 O HOH A 559 1.87 REMARK 500 O HOH A 494 O HOH A 581 1.88 REMARK 500 NE2 GLN A 75 O HOH A 538 1.97 REMARK 500 O HOH A 530 O HOH A 556 2.00 REMARK 500 O HOH A 500 O HOH A 545 2.06 REMARK 500 O HOH A 519 O HOH A 586 2.07 REMARK 500 O HOH A 508 O HOH A 512 2.08 REMARK 500 O HOH A 475 O HOH A 515 2.14 REMARK 500 O HOH A 468 O HOH A 509 2.17 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS REMARK 500 REMARK 500 THE FOLLOWING ATOMS THAT ARE RELATED BY CRYSTALLOGRAPHIC REMARK 500 SYMMETRY ARE IN CLOSE CONTACT. AN ATOM LOCATED WITHIN 0.15 REMARK 500 ANGSTROMS OF A SYMMETRY RELATED ATOM IS ASSUMED TO BE ON A REMARK 500 SPECIAL POSITION AND IS, THEREFORE, LISTED IN REMARK 375 REMARK 500 INSTEAD OF REMARK 500. ATOMS WITH NON-BLANK ALTERNATE REMARK 500 LOCATION INDICATORS ARE NOT INCLUDED IN THE CALCULATIONS. REMARK 500 REMARK 500 DISTANCE CUTOFF: REMARK 500 2.2 ANGSTROMS FOR CONTACTS NOT INVOLVING HYDROGEN ATOMS REMARK 500 1.6 ANGSTROMS FOR CONTACTS INVOLVING HYDROGEN ATOMS REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI SSYMOP DISTANCE REMARK 500 O HOH A 442 O HOH A 510 1554 2.05 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 ARG A 187 NE - CZ - NH2 ANGL. DEV. = 3.6 DEGREES REMARK 500 ARG A 188 NE - CZ - NH2 ANGL. DEV. = 3.7 DEGREES REMARK 500 ARG A 218 NE - CZ - NH2 ANGL. DEV. = 3.8 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 ALA A 61A -154.04 -137.40 REMARK 500 ALA A 61B -25.19 102.56 REMARK 500 HIS A 171 -104.61 -110.53 REMARK 500 ARG A 187 -27.89 77.80 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 451 DISTANCE = 6.13 ANGSTROMS

REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: NUL REMARK 800 EVIDENCE_CODE: UNKNOWN REMARK 800 SITE_DESCRIPTION: CATALYTIC TRIAD. REMARK 800 REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SOA A 244 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE GOL A 245

DBREF 1BIO A 16 243 UNP P00746 CFAD_HUMAN 26 253

SEQRES 1 A 228 ILE LEU GLY GLY ARG GLU ALA GLU ALA HIS ALA ARG PRO SEQRES 2 A 228 TYR MET ALA SER VAL GLN LEU ASN GLY ALA HIS LEU CYS SEQRES 3 A 228 GLY GLY VAL LEU VAL ALA GLU GLN TRP VAL LEU SER ALA SEQRES 4 A 228 ALA HIS CYS LEU GLU ASP ALA ALA ASP GLY LYS VAL GLN SEQRES 5 A 228 VAL LEU LEU GLY ALA HIS SER LEU SER GLN PRO GLU PRO SEQRES 6 A 228 SER LYS ARG LEU TYR ASP VAL LEU ARG ALA VAL PRO HIS SEQRES 7 A 228 PRO ASP SER GLN PRO ASP THR ILE ASP HIS ASP LEU LEU SEQRES 8 A 228 LEU LEU GLN LEU SER GLU LYS ALA THR LEU GLY PRO ALA SEQRES 9 A 228 VAL ARG PRO LEU PRO TRP GLN ARG VAL ASP ARG ASP VAL SEQRES 10 A 228 ALA PRO GLY THR LEU CYS ASP VAL ALA GLY TRP GLY ILE SEQRES 11 A 228 VAL ASN HIS ALA GLY ARG ARG PRO ASP SER LEU GLN HIS SEQRES 12 A 228 VAL LEU LEU PRO VAL LEU ASP ARG ALA THR CYS ASN ARG SEQRES 13 A 228 ARG THR HIS HIS ASP GLY ALA ILE THR GLU ARG LEU MET SEQRES 14 A 228 CYS ALA GLU SER ASN ARG ARG ASP SER CYS LYS GLY ASP SEQRES 15 A 228 SER GLY GLY PRO LEU VAL CYS GLY GLY VAL LEU GLU GLY SEQRES 16 A 228 VAL VAL THR SER GLY SER ARG VAL CYS GLY ASN ARG LYS SEQRES 17 A 228 LYS PRO GLY ILE TYR THR ARG VAL ALA SER TYR ALA ALA SEQRES 18 A 228 TRP ILE ASP SER VAL LEU ALA

HET SOA A 244 9 HET GOL A 245 6

HETNAM SOA ISATOIC ANHYDRIDE HETNAM GOL GLYCEROL

HETSYN GOL GLYCERIN; PROPANE-1,2,3-TRIOL

FORMUL 2 SOA C7 H9 N O FORMUL 3 GOL C3 H8 O3 FORMUL 4 HOH *286(H2 O)

HELIX 1 1 ALA A 56 ASP A 61 1 6 HELIX 2 2 ARG A 165 ASN A 169 1 5 HELIX 3 3 VAL A 231 VAL A 241 5 11

SHEET 1 A 7 ARG A 81 ASP A 84 0 SHEET 2 A 7 VAL A 64 LEU A 68 -1 N LEU A 68 O ARG A 81 SHEET 3 A 7 MET A 30 LEU A 35 -1 N GLN A 34 O GLN A 65 SHEET 4 A 7 ALA A 39 ALA A 48 -1 N GLY A 44 O ALA A 31 SHEET 5 A 7 TRP A 51 SER A 54 -1 N LEU A 53 O VAL A 45 SHEET 6 A 7 LEU A 104 LEU A 108 -1 N LEU A 106 O VAL A 52 SHEET 7 A 7 VAL A 85 PRO A 90 -1 N VAL A 89 O LEU A 105 SHEET 1 B 2 LEU A 135 GLY A 140 0 SHEET 2 B 2 GLN A 156 PRO A 161 -1 N LEU A 160 O CYS A 136 SHEET 1 C 4 LEU A 180 ALA A 183 0 SHEET 2 C 4 GLY A 226 ARG A 230 -1 N TYR A 228 O MET A 181 SHEET 3 C 4 VAL A 208 VAL A 213 -1 N VAL A 212 O THR A 229 SHEET 4 C 4 PRO A 198 CYS A 201 -1 N CYS A 201 O VAL A 208

SSBOND 1 CYS A 42 CYS A 58 1555 1555 2.03 SSBOND 2 CYS A 136 CYS A 201 1555 1555 2.04 SSBOND 3 CYS A 168 CYS A 182 1555 1555 2.04 SSBOND 4 CYS A 191 CYS A 220 1555 1555 2.06

LINK C12 SOA A 244 OG SER A 195 1555 1555 1.20

SITE 1 NUL 3 HIS A 57 ASP A 102 SER A 195 SITE 1 AC1 7 CYS A 191 LYS A 192 SER A 195 THR A 214 SITE 2 AC1 7 SER A 215 ARG A 218 HOH A 390 SITE 1 AC2 9 ASP A 129A VAL A 130 VAL A 162 LEU A 163 SITE 2 AC2 9 ASP A 164 ARG A 165 MET A 181 CYS A 182 SITE 3 AC2 9 HOH A 313

CRYST1 55.480 49.910 39.430 90.00 105.69 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 0.018025 0.000000 0.005063 0.00000

SCALE2 0.000000 0.020036 0.000000 0.00000

SCALE3 0.000000 0.000000 0.026343 0.00000