PDB Short entry for 1KLT HEADER SERINE PROTEASE 16-OCT-97 1KLT TITLE CRYSTAL STRUCTURE OF PMSF-TREATED HUMAN CHYMASE AT 1.9 ANGSTROMS TITLE 2 RESOLUTION COMPND MOL_ID: 1; COMPND 2 MOLECULE: CHYMASE; COMPND 3 CHAIN: A; COMPND 4 EC: 3.4.21.39; COMPND 5 ENGINEERED: YES; COMPND 6 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: HOMO SAPIENS; SOURCE 3 ORGANISM_COMMON: HUMAN; SOURCE 4 ORGANISM_TAXID: 9606; SOURCE 5 EXPRESSION_SYSTEM: BACILLUS SUBTILIS; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 1423; SOURCE 7 EXPRESSION_SYSTEM_STRAIN: WB751; SOURCE 8 EXPRESSION_SYSTEM_VARIANT: PROTEASE DEFICIENT KEYWDS SERINE PROTEASE, HYDROLASE, MAST CELL, ANGIOTENSIN, ALPHA KEYWDS 2 TOLUENESULFONIC ACID EXPDTA X-RAY DIFFRACTION AUTHOR M.E.MCGRATH REVDAT 6 03-APR-24 1KLT 1 REMARK REVDAT 5 03-NOV-21 1KLT 1 REMARK SEQADV LINK REVDAT 4 24-FEB-09 1KLT 1 VERSN REVDAT 3 01-APR-03 1KLT 1 JRNL REVDAT 2 13-JAN-99 1KLT 3 COMPND REMARK HETATM HEADER REVDAT 2 2 3 MODRES LINK JRNL KEYWDS REVDAT 2 3 3 CONECT REVDAT 1 09-DEC-98 1KLT 0 JRNL AUTH M.E.MCGRATH,T.MIRZADEGAN,B.F.SCHMIDT JRNL TITL CRYSTAL STRUCTURE OF PHENYLMETHANESULFONYL FLUORIDE-TREATED JRNL TITL 2 HUMAN CHYMASE AT 1.9 A. JRNL REF BIOCHEMISTRY V. 36 14318 1997 JRNL REFN ISSN 0006-2960 JRNL PMID 9400368 JRNL DOI 10.1021/BI971403N REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH M.E.MCGRATH,A.E.OSAWA,M.G.BARNES,J.M.CLARK,K.D.MORTARA, REMARK 1 AUTH 2 B.F.SCHMIDT REMARK 1 TITL PRODUCTION OF CRYSTALLIZABLE HUMAN CHYMASE FROM A BACILLUS REMARK 1 TITL 2 SUBTILIS SYSTEM REMARK 1 REF FEBS LETT. V. 413 486 1997 REMARK 1 REFN ISSN 0014-5793 REMARK 2 REMARK 2 RESOLUTION. 1.90 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) : 1.90 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 6.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 1.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : 10000000.000 REMARK 3 DATA CUTOFF LOW (ABS(F)) : 0.0010 REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 80.4 REMARK 3 NUMBER OF REFLECTIONS : 11899 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) : 0.183 REMARK 3 FREE R VALUE : 0.255 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 9.970 REMARK 3 FREE R VALUE TEST SET COUNT : 1186 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : 0.017 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) : 1.90 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.98 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 50.40 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 426 REMARK 3 BIN R VALUE (WORKING SET) : 0.3210 REMARK 3 BIN FREE R VALUE : 0.2840 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 9.60 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 45 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : 0.042 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1748 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 10 REMARK 3 SOLVENT ATOMS : 221 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 21.30 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 19.40 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) : 0.21 REMARK 3 ESD FROM SIGMAA (A) : NULL REMARK 3 LOW RESOLUTION CUTOFF (A) : 6.00 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) : 0.016 REMARK 3 BOND ANGLES (DEGREES) : 2.270 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 25.20 REMARK 3 IMPROPER ANGLES (DEGREES) : 1.840 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 : PARHCSDX.PRO REMARK 3 PARAMETER FILE 2 : NULL REMARK 3 PARAMETER FILE 3 : NULL REMARK 3 TOPOLOGY FILE 1 : TOPHCSDX.PRO REMARK 3 TOPOLOGY FILE 2 : NULL REMARK 3 TOPOLOGY FILE 3 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1KLT COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY BNL. REMARK 100 THE DEPOSITION ID IS D_1000174457. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : DEC-96 REMARK 200 TEMPERATURE (KELVIN) : 295 REMARK 200 PH : 5.6 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 RUH2R REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418 REMARK 200 MONOCHROMATOR : NI FILTER REMARK 200 OPTICS : MIRRORS REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : RIGAKU REMARK 200 INTENSITY-INTEGRATION SOFTWARE : BIOTEX (MSC) REMARK 200 DATA SCALING SOFTWARE : BIOTEX REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 14518 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.900 REMARK 200 RESOLUTION RANGE LOW (A) : 39.100 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 1.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 80.4 REMARK 200 DATA REDUNDANCY : 2.200 REMARK 200 R MERGE (I) : 0.07700 REMARK 200 R SYM (I) : 0.07700 REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 11.0000 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) : 2.10 REMARK 200 COMPLETENESS FOR SHELL (%) : 50.4 REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : 0.34400 REMARK 200 R SYM FOR SHELL (I) : 0.34400 REMARK 200 <I/SIGMA(I)> FOR SHELL : 1.300 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: NULL REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: X-PLOR 3.1 REMARK 200 STARTING MODEL: HOMOLOGY MODEL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 46.50 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.30 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: COMPLEX WAS CRYSTALLIZED FROM 20% PEG REMARK 280 2000, 20% ISOPROPANOL, 0.1M SODIUM CITRATE, PH 5.6. REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 21 21 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X+1/2,-Y,Z+1/2 REMARK 290 3555 -X,Y+1/2,-Z+1/2 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 21.96500 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 43.04500 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 29.08000 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 43.04500 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 21.96500 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 29.08000 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 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 LYS A 109 CG CD CE NZ REMARK 470 ARG A 137 CG CD NE CZ NH1 NH2 REMARK 470 ASN A 245 CG OD1 ND2 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 HZ1 LYS A 186B H2 HOH A 433 1.05 REMARK 500 HZ2 LYS A 186B H1 HOH A 433 1.07 REMARK 500 NZ LYS A 186B H2 HOH A 433 1.17 REMARK 500 HD22 ASN A 185 HZ3 LYS A 186B 1.18 REMARK 500 HD22 ASN A 72 H THR A 74 1.20 REMARK 500 HZ2 LYS A 186B H2 HOH A 433 1.23 REMARK 500 HH21 ARG A 143 HZ2 LYS A 192 1.28 REMARK 500 CD ARG A 186A O HOH A 541 1.28 REMARK 500 H GLY A 37 H2 HOH A 462 1.33 REMARK 500 HG1 THR A 229 H1 HOH A 543 1.35 REMARK 500 HZ2 LYS A 186B O HOH A 433 1.35 REMARK 500 NZ LYS A 186B O HOH A 433 1.81 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 OG SER A 97 HH12 ARG A 186A 4565 0.87 REMARK 500 HG SER A 97 HH12 ARG A 186A 4565 0.93 REMARK 500 HG SER A 97 NH1 ARG A 186A 4565 0.96 REMARK 500 HG SER A 97 HH11 ARG A 186A 4565 1.04 REMARK 500 HH22 ARG A 186A H1 HOH A 582 4465 1.28 REMARK 500 OG SER A 97 NH1 ARG A 186A 4565 1.50 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 PRO A 38 C - N - CD ANGL. DEV. = -14.0 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 ASN A 36C -165.70 166.38 REMARK 500 PRO A 38 -151.63 29.70 REMARK 500 HIS A 71 -72.09 -119.86 REMARK 500 SER A 97 -60.24 -95.12 REMARK 500 SER A 189 163.30 179.89 REMARK 500 REMARK 500 REMARK: NULL REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: CIC REMARK 800 EVIDENCE_CODE: UNKNOWN REMARK 800 SITE_DESCRIPTION: ACTIVE SITE REMARK 800 REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE PMS A 400 DBREF 1KLT A 16 245 UNP P23946 MCPT1_HUMAN 22 247 SEQADV 1KLT SER A 22 UNP P23946 CYS 28 ENGINEERED MUTATION SEQRES 1 A 226 ILE ILE GLY GLY THR GLU SER LYS PRO HIS SER ARG PRO SEQRES 2 A 226 TYR MET ALA TYR LEU GLU ILE VAL THR SER ASN GLY PRO SEQRES 3 A 226 SER LYS PHE CYS GLY GLY PHE LEU ILE ARG ARG ASN PHE SEQRES 4 A 226 VAL LEU THR ALA ALA HIS CYS ALA GLY ARG SER ILE THR SEQRES 5 A 226 VAL THR LEU GLY ALA HIS ASN ILE THR GLU GLU GLU ASP SEQRES 6 A 226 THR TRP GLN LYS LEU GLU VAL ILE LYS GLN PHE ARG HIS SEQRES 7 A 226 PRO LYS TYR ASN THR SER THR LEU HIS HIS ASP ILE MET SEQRES 8 A 226 LEU LEU LYS LEU LYS GLU LYS ALA SER LEU THR LEU ALA SEQRES 9 A 226 VAL GLY THR LEU PRO PHE PRO SER GLN PHE ASN PHE VAL SEQRES 10 A 226 PRO PRO GLY ARG MET CYS ARG VAL ALA GLY TRP GLY ARG SEQRES 11 A 226 THR GLY VAL LEU LYS PRO GLY SER ASP THR LEU GLN GLU SEQRES 12 A 226 VAL LYS LEU ARG LEU MET ASP PRO GLN ALA CYS SER HIS SEQRES 13 A 226 PHE ARG ASP PHE ASP HIS ASN LEU GLN LEU CYS VAL GLY SEQRES 14 A 226 ASN PRO ARG LYS THR LYS SER ALA PHE LYS GLY ASP SER SEQRES 15 A 226 GLY GLY PRO LEU LEU CYS ALA GLY VAL ALA GLN GLY ILE SEQRES 16 A 226 VAL SER TYR GLY ARG SER ASP ALA LYS PRO PRO ALA VAL SEQRES 17 A 226 PHE THR ARG ILE SER HIS TYR ARG PRO TRP ILE ASN GLN SEQRES 18 A 226 ILE LEU GLN ALA ASN HET PMS A 400 10 HETNAM PMS PHENYLMETHANESULFONIC ACID FORMUL 2 PMS C7 H8 O3 S FORMUL 3 HOH *221(H2 O) HELIX 1 1 ALA A 56 CYS A 58 5 3 HELIX 2 2 PRO A 165 CYS A 168 5 4 HELIX 3 3 ILE A 231 GLN A 243 5 13 SHEET 1 A 7 GLN A 81 GLU A 84 0 SHEET 2 A 7 SER A 63 LEU A 68 -1 N LEU A 68 O GLN A 81 SHEET 3 A 7 MET A 30 VAL A 36 -1 N VAL A 36 O SER A 63 SHEET 4 A 7 SER A 39 ARG A 48 -1 N GLY A 44 O ALA A 31 SHEET 5 A 7 PHE A 51 THR A 54 -1 N LEU A 53 O PHE A 45 SHEET 6 A 7 MET A 104 LEU A 108 -1 N LEU A 106 O VAL A 52 SHEET 7 A 7 VAL A 85 ARG A 90 -1 N PHE A 89 O LEU A 105 SHEET 1 B 2 MET A 135 GLY A 140 0 SHEET 2 B 2 GLN A 156 ARG A 161 -1 N LEU A 160 O CYS A 136 SHEET 1 C 4 GLN A 180 VAL A 183 0 SHEET 2 C 4 ALA A 226 ARG A 230 -1 N PHE A 228 O LEU A 181 SHEET 3 C 4 VAL A 208 TYR A 215 -1 N TYR A 215 O VAL A 227 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 2.02 SSBOND 2 CYS A 136 CYS A 201 1555 1555 2.02 SSBOND 3 CYS A 168 CYS A 182 1555 1555 2.01 LINK OG SER A 195 S PMS A 400 1555 1555 1.50 CISPEP 1 PRO A 224 PRO A 225 0 0.93 SITE 1 CIC 3 ASP A 102 HIS A 57 SER A 195 SITE 1 AC1 7 HIS A 57 PHE A 191 LYS A 192 GLY A 193 SITE 2 AC1 7 SER A 195 SER A 214 HOH A 522 CRYST1 43.930 58.160 86.090 90.00 90.00 90.00 P 21 21 21 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 0.022763 0.000000 0.000000 0.00000 SCALE2 0.000000 0.017194 0.000000 0.00000 SCALE3 0.000000 0.000000 0.011616 0.00000