HEADER LYASE 08-APR-99 1QAZ TITLE CRYSTAL STRUCTURE OF ALGINATE LYASE A1-III FROM SPHINGOMONAS SPECIES TITLE 2 A1 AT 1.78A RESOLUTION COMPND MOL_ID: 1; COMPND 2 MOLECULE: PROTEIN (ALGINATE LYASE A1-III); COMPND 3 CHAIN: A; COMPND 4 EC: 3.5.1.45; COMPND 5 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: SPHINGOMONAS SP.; SOURCE 3 ORGANISM_TAXID: 28214; SOURCE 4 EXPRESSION_SYSTEM: BACILLUS SUBTILIS; SOURCE 5 EXPRESSION_SYSTEM_TAXID: 1423; SOURCE 6 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 7 EXPRESSION_SYSTEM_PLASMID: PISA412 KEYWDS ALGINATE LYASE, CRYSTALS, LYASE EXPDTA X-RAY DIFFRACTION AUTHOR H.-J.YOON REVDAT 4 04-OCT-17 1QAZ 1 REMARK REVDAT 3 24-FEB-09 1QAZ 1 VERSN REVDAT 2 01-APR-03 1QAZ 1 JRNL REVDAT 1 19-JUL-99 1QAZ 0 JRNL AUTH H.J.YOON,B.MIKAMI,W.HASHIMOTO,K.MURATA JRNL TITL CRYSTAL STRUCTURE OF ALGINATE LYASE A1-III FROM SPHINGOMONAS JRNL TITL 2 SPECIES A1 AT 1.78 A RESOLUTION. JRNL REF J.MOL.BIOL. V. 290 505 1999 JRNL REFN ISSN 0022-2836 JRNL PMID 10390348 JRNL DOI 10.1006/JMBI.1999.2883 REMARK 2 REMARK 2 RESOLUTION. 1.78 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : X-PLOR 3.1 REMARK 3 AUTHORS : BRUNGER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.78 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 10.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 2.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : NULL REMARK 3 DATA CUTOFF LOW (ABS(F)) : NULL REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 89.9 REMARK 3 NUMBER OF REFLECTIONS : 26753 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) : 0.180 REMARK 3 FREE R VALUE : 0.233 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 10.000 REMARK 3 FREE R VALUE TEST SET COUNT : 2993 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : NULL REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : NULL REMARK 3 BIN RESOLUTION RANGE HIGH (A) : NULL REMARK 3 BIN RESOLUTION RANGE LOW (A) : NULL REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : NULL REMARK 3 REFLECTIONS IN BIN (WORKING SET) : NULL REMARK 3 BIN R VALUE (WORKING SET) : NULL REMARK 3 BIN FREE R VALUE : NULL REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 BIN FREE R VALUE TEST SET COUNT : NULL REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : NULL REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 2793 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 10 REMARK 3 SOLVENT ATOMS : 298 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : NULL 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) : NULL REMARK 3 ESD FROM SIGMAA (A) : NULL REMARK 3 LOW RESOLUTION CUTOFF (A) : NULL REMARK 3 REMARK 3 CROSS-VALIDATED ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM C-V LUZZATI PLOT (A) : NULL REMARK 3 ESD FROM C-V SIGMAA (A) : NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.012 REMARK 3 BOND ANGLES (DEGREES) : NULL REMARK 3 DIHEDRAL ANGLES (DEGREES) : NULL REMARK 3 IMPROPER ANGLES (DEGREES) : NULL 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 : NULL REMARK 3 TOPOLOGY FILE 1 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1QAZ COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 08-APR-99. REMARK 100 THE DEPOSITION ID IS D_1000009030. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 23-OCT-98 REMARK 200 TEMPERATURE (KELVIN) : 293 REMARK 200 PH : 7.5 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 : MACSCIENCE REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : AREA DETECTOR REMARK 200 DETECTOR MANUFACTURER : SIEMENS HI-STAR REMARK 200 INTENSITY-INTEGRATION SOFTWARE : SADIE, SAINT REMARK 200 DATA SCALING SOFTWARE : SADIE, SAINT REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 30410 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.790 REMARK 200 RESOLUTION RANGE LOW (A) : 26.310 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 88.4 REMARK 200 DATA REDUNDANCY : 2.120 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.03200 REMARK 200 FOR THE DATA SET : 7.9000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.78 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.84 REMARK 200 COMPLETENESS FOR SHELL (%) : 49.9 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 FOR SHELL : NULL REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: NULL REMARK 200 SOFTWARE USED: PHASES REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 45.44 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.25 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 49% (NH4)2SO4, 0.1M HEPES, PH 7.5, REMARK 280 VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 293K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: C 1 2 1 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 24.45000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 46.20000 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 4 -1.000000 0.000000 0.000000 24.45000 REMARK 290 SMTRY2 4 0.000000 1.000000 0.000000 46.20000 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 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: 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 HIS A 73 NE2 HIS A 73 CD2 -0.069 REMARK 500 HIS A 177 NE2 HIS A 177 CD2 -0.070 REMARK 500 HIS A 235 NE2 HIS A 235 CD2 -0.071 REMARK 500 HIS A 245 NE2 HIS A 245 CD2 -0.073 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 27 NE - CZ - NH1 ANGL. DEV. = 3.1 DEGREES REMARK 500 ARG A 27 NE - CZ - NH2 ANGL. DEV. = -3.0 DEGREES REMARK 500 ARG A 38 NE - CZ - NH1 ANGL. DEV. = 8.1 DEGREES REMARK 500 ARG A 38 NE - CZ - NH2 ANGL. DEV. = -9.2 DEGREES REMARK 500 ARG A 66 NE - CZ - NH1 ANGL. DEV. = -3.1 DEGREES REMARK 500 TRP A 120 CD1 - CG - CD2 ANGL. DEV. = 5.7 DEGREES REMARK 500 TRP A 120 CE2 - CD2 - CG ANGL. DEV. = -5.8 DEGREES REMARK 500 TRP A 136 CD1 - CG - CD2 ANGL. DEV. = 6.2 DEGREES REMARK 500 TRP A 136 CE2 - CD2 - CG ANGL. DEV. = -5.7 DEGREES REMARK 500 TRP A 141 CD1 - CG - CD2 ANGL. DEV. = 5.9 DEGREES REMARK 500 TRP A 141 CE2 - CD2 - CG ANGL. DEV. = -5.8 DEGREES REMARK 500 ARG A 164 NE - CZ - NH2 ANGL. DEV. = -3.3 DEGREES REMARK 500 ARG A 166 NE - CZ - NH1 ANGL. DEV. = 3.8 DEGREES REMARK 500 TRP A 170 CD1 - CG - CD2 ANGL. DEV. = 6.2 DEGREES REMARK 500 TRP A 170 CE2 - CD2 - CG ANGL. DEV. = -5.9 DEGREES REMARK 500 ARG A 176 NE - CZ - NH1 ANGL. DEV. = 4.0 DEGREES REMARK 500 TRP A 195 CD1 - CG - CD2 ANGL. DEV. = 6.0 DEGREES REMARK 500 TRP A 195 CE2 - CD2 - CG ANGL. DEV. = -5.7 DEGREES REMARK 500 ARG A 214 NE - CZ - NH1 ANGL. DEV. = 3.1 DEGREES REMARK 500 TRP A 215 CD1 - CG - CD2 ANGL. DEV. = 6.8 DEGREES REMARK 500 TRP A 215 CE2 - CD2 - CG ANGL. DEV. = -5.7 DEGREES REMARK 500 ARG A 239 NE - CZ - NH1 ANGL. DEV. = 3.7 DEGREES REMARK 500 TRP A 317 CD1 - CG - CD2 ANGL. DEV. = 6.2 DEGREES REMARK 500 TRP A 317 CE2 - CD2 - CG ANGL. DEV. = -5.4 DEGREES REMARK 500 ARG A 342 NE - CZ - NH1 ANGL. DEV. = 3.4 DEGREES REMARK 500 ARG A 342 NE - CZ - NH2 ANGL. DEV. = -3.9 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 SER A 5 79.19 78.16 REMARK 500 SER A 19 -155.44 64.04 REMARK 500 ASN A 190 -157.66 -92.64 REMARK 500 HIS A 240 -123.68 46.60 REMARK 500 PHE A 308 58.16 -90.40 REMARK 500 THR A 335 -72.19 -104.18 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: PLANAR GROUPS REMARK 500 REMARK 500 PLANAR GROUPS IN THE FOLLOWING RESIDUES HAVE A TOTAL REMARK 500 RMS DISTANCE OF ALL ATOMS FROM THE BEST-FIT PLANE REMARK 500 BY MORE THAN AN EXPECTED VALUE OF 6*RMSD, WITH AN REMARK 500 RMSD 0.02 ANGSTROMS, OR AT LEAST ONE ATOM HAS REMARK 500 AN RMSD GREATER THAN THIS VALUE REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 M RES CSSEQI RMS TYPE REMARK 500 TYR A 194 0.07 SIDE CHAIN REMARK 500 REMARK 500 REMARK: NULL REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 700 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 701 DBREF 1QAZ A 4 354 UNP Q9KWU1 Q9KWU1_9SPHN 53 403 SEQADV 1QAZ SER A 5 UNP Q9KWU1 ALA 54 CONFLICT SEQADV 1QAZ ALA A 347 UNP Q9KWU1 GLY 396 CONFLICT SEQRES 1 A 351 GLY SER HIS PRO PHE ASP GLN ALA VAL VAL LYS ASP PRO SEQRES 2 A 351 THR ALA SER TYR VAL ASP VAL LYS ALA ARG ARG THR PHE SEQRES 3 A 351 LEU GLN SER GLY GLN LEU ASP ASP ARG LEU LYS ALA ALA SEQRES 4 A 351 LEU PRO LYS GLU TYR ASP CYS THR THR GLU ALA THR PRO SEQRES 5 A 351 ASN PRO GLN GLN GLY GLU MET VAL ILE PRO ARG ARG TYR SEQRES 6 A 351 LEU SER GLY ASN HIS GLY PRO VAL ASN PRO ASP TYR GLU SEQRES 7 A 351 PRO VAL VAL THR LEU TYR ARG ASP PHE GLU LYS ILE SER SEQRES 8 A 351 ALA THR LEU GLY ASN LEU TYR VAL ALA THR GLY LYS PRO SEQRES 9 A 351 VAL TYR ALA THR CYS LEU LEU ASN MET LEU ASP LYS TRP SEQRES 10 A 351 ALA LYS ALA ASP ALA LEU LEU ASN TYR ASP PRO LYS SER SEQRES 11 A 351 GLN SER TRP TYR GLN VAL GLU TRP SER ALA ALA THR ALA SEQRES 12 A 351 ALA PHE ALA LEU SER THR MET MET ALA GLU PRO ASN VAL SEQRES 13 A 351 ASP THR ALA GLN ARG GLU ARG VAL VAL LYS TRP LEU ASN SEQRES 14 A 351 ARG VAL ALA ARG HIS GLN THR SER PHE PRO GLY GLY ASP SEQRES 15 A 351 THR SER CYS CYS ASN ASN HIS SER TYR TRP ARG GLY GLN SEQRES 16 A 351 GLU ALA THR ILE ILE GLY VAL ILE SER LYS ASP ASP GLU SEQRES 17 A 351 LEU PHE ARG TRP GLY LEU GLY ARG TYR VAL GLN ALA MET SEQRES 18 A 351 GLY LEU ILE ASN GLU ASP GLY SER PHE VAL HIS GLU MET SEQRES 19 A 351 THR ARG HIS GLU GLN SER LEU HIS TYR GLN ASN TYR ALA SEQRES 20 A 351 MET LEU PRO LEU THR MET ILE ALA GLU THR ALA SER ARG SEQRES 21 A 351 GLN GLY ILE ASP LEU TYR ALA TYR LYS GLU ASN GLY ARG SEQRES 22 A 351 ASP ILE HIS SER ALA ARG LYS PHE VAL PHE ALA ALA VAL SEQRES 23 A 351 LYS ASN PRO ASP LEU ILE LYS LYS TYR ALA SER GLU PRO SEQRES 24 A 351 GLN ASP THR ARG ALA PHE LYS PRO GLY ARG GLY ASP LEU SEQRES 25 A 351 ASN TRP ILE GLU TYR GLN ARG ALA ARG PHE GLY PHE ALA SEQRES 26 A 351 ASP GLU LEU GLY PHE MET THR VAL PRO ILE PHE ASP PRO SEQRES 27 A 351 ARG THR GLY GLY SER ALA THR LEU LEU ALA TYR LYS PRO HET SO4 A 700 5 HET SO4 A 701 5 HETNAM SO4 SULFATE ION FORMUL 2 SO4 2(O4 S 2-) FORMUL 4 HOH *298(H2 O) HELIX 1 1 ASP A 22 SER A 32 1 11 HELIX 2 2 ASP A 36 LEU A 43 1 8 HELIX 3 3 ASP A 48 GLU A 52 5 5 HELIX 4 4 ASP A 79 GLY A 105 1 27 HELIX 5 5 PRO A 107 ALA A 123 1 17 HELIX 6 6 SER A 133 THR A 152 1 20 HELIX 7 7 ASP A 160 SER A 180 1 21 HELIX 8 8 ASN A 190 SER A 207 1 18 HELIX 9 9 ASP A 209 GLY A 225 1 17 HELIX 10 10 HIS A 235 ARG A 239 5 5 HELIX 11 11 ARG A 239 GLU A 241 5 3 HELIX 12 12 GLN A 242 ARG A 263 1 22 HELIX 13 13 ASP A 277 ASN A 291 1 15 HELIX 14 14 PRO A 292 TYR A 298 5 7 HELIX 15 15 ARG A 312 ASP A 314 5 3 HELIX 16 16 LEU A 315 GLY A 326 1 12 HELIX 17 17 PRO A 341 GLY A 344 5 4 HELIX 18 18 SER A 346 TYR A 352 1 7 SSBOND 1 CYS A 49 CYS A 112 1555 1555 2.01 SSBOND 2 CYS A 188 CYS A 189 1555 1555 2.03 SITE 1 AC1 1 ARG A 66 SITE 1 AC2 4 GLY A 184 ASP A 185 THR A 186 SER A 187 CRYST1 48.900 92.400 81.600 90.00 104.00 90.00 C 1 2 1 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 0.020450 0.000000 0.005099 0.00000 SCALE2 0.000000 0.010823 0.000000 0.00000 SCALE3 0.000000 0.000000 0.012630 0.00000