HEADER HYDROLASE 12-DEC-16 5MN1 TITLE CATIONIC TRYPSIN IN COMPLEX WITH 2-AMINOPYRIDINE (DEUTERATED SAMPLE AT TITLE 2 100 K) COMPND MOL_ID: 1; COMPND 2 MOLECULE: CATIONIC TRYPSIN; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: BETA-TRYPSIN; COMPND 5 EC: 3.4.21.4 SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: BOS TAURUS; SOURCE 3 ORGANISM_COMMON: BOVINE; SOURCE 4 ORGANISM_TAXID: 9913 KEYWDS HYDROGEN BONDING, PROTONATION, PROTEIN-LIGAND INTERACTION, HYDROLASE EXPDTA X-RAY DIFFRACTION AUTHOR J.SCHIEBEL,A.HEINE,G.KLEBE REVDAT 4 23-OCT-24 5MN1 1 REMARK REVDAT 3 17-JAN-24 5MN1 1 REMARK REVDAT 2 14-MAR-18 5MN1 1 REMARK REVDAT 1 24-MAY-17 5MN1 0 JRNL AUTH J.SCHIEBEL,R.GASPARI,A.SANDNER,K.NGO,H.D.GERBER,A.CAVALLI, JRNL AUTH 2 A.OSTERMANN,A.HEINE,G.KLEBE JRNL TITL CHARGES SHIFT PROTONATION: NEUTRON DIFFRACTION REVEALS THAT JRNL TITL 2 ANILINE AND 2-AMINOPYRIDINE BECOME PROTONATED UPON BINDING JRNL TITL 3 TO TRYPSIN. JRNL REF ANGEW. CHEM. INT. ED. ENGL. V. 56 4887 2017 JRNL REFN ESSN 1521-3773 JRNL PMID 28371253 JRNL DOI 10.1002/ANIE.201701038 REMARK 2 REMARK 2 RESOLUTION. 0.79 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PHENIX (1.10.1-2155) REMARK 3 AUTHORS : PAUL ADAMS,PAVEL AFONINE,VINCENT CHEN,IAN REMARK 3 : DAVIS,KRESHNA GOPAL,RALF GROSSE-KUNSTLEVE, REMARK 3 : LI-WEI HUNG,ROBERT IMMORMINO,TOM IOERGER, REMARK 3 : AIRLIE MCCOY,ERIK MCKEE,NIGEL MORIARTY, REMARK 3 : REETAL PAI,RANDY READ,JANE RICHARDSON, REMARK 3 : DAVID RICHARDSON,TOD ROMO,JIM SACCHETTINI, REMARK 3 : NICHOLAS SAUTER,JACOB SMITH,LAURENT REMARK 3 : STORONI,TOM TERWILLIGER,PETER ZWART REMARK 3 REMARK 3 REFINEMENT TARGET : NULL REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 0.79 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 27.35 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 1.350 REMARK 3 COMPLETENESS FOR RANGE (%) : 96.6 REMARK 3 NUMBER OF REFLECTIONS : 226534 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.099 REMARK 3 R VALUE (WORKING SET) : 0.098 REMARK 3 FREE R VALUE : 0.109 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.000 REMARK 3 FREE R VALUE TEST SET COUNT : 11326 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT (IN BINS). REMARK 3 BIN RESOLUTION RANGE COMPL. NWORK NFREE RWORK RFREE REMARK 3 1 27.3624 - 2.4494 0.97 7668 403 0.1200 0.1330 REMARK 3 2 2.4494 - 1.9443 0.99 7521 396 0.1021 0.1217 REMARK 3 3 1.9443 - 1.6986 0.99 7492 393 0.1011 0.1135 REMARK 3 4 1.6986 - 1.5433 0.99 7450 392 0.0945 0.1001 REMARK 3 5 1.5433 - 1.4327 0.99 7426 391 0.0864 0.0936 REMARK 3 6 1.4327 - 1.3482 0.98 7282 382 0.0871 0.0933 REMARK 3 7 1.3482 - 1.2807 0.98 7316 385 0.0844 0.0887 REMARK 3 8 1.2807 - 1.2250 0.99 7325 386 0.0781 0.0794 REMARK 3 9 1.2250 - 1.1778 0.98 7322 385 0.0732 0.0861 REMARK 3 10 1.1778 - 1.1372 0.98 7278 384 0.0686 0.0778 REMARK 3 11 1.1372 - 1.1016 0.98 7295 384 0.0657 0.0747 REMARK 3 12 1.1016 - 1.0701 0.98 7259 382 0.0671 0.0728 REMARK 3 13 1.0701 - 1.0419 0.98 7186 378 0.0682 0.0819 REMARK 3 14 1.0419 - 1.0165 0.97 7178 378 0.0732 0.0775 REMARK 3 15 1.0165 - 0.9934 0.96 7102 374 0.0760 0.0859 REMARK 3 16 0.9934 - 0.9723 0.97 7133 375 0.0778 0.0861 REMARK 3 17 0.9723 - 0.9528 0.97 7147 377 0.0825 0.0968 REMARK 3 18 0.9528 - 0.9348 0.97 7160 376 0.0889 0.0990 REMARK 3 19 0.9348 - 0.9181 0.96 7080 373 0.0951 0.1050 REMARK 3 20 0.9181 - 0.9026 0.96 7129 375 0.1007 0.1160 REMARK 3 21 0.9026 - 0.8880 0.96 7104 374 0.1060 0.1274 REMARK 3 22 0.8880 - 0.8744 0.96 7058 372 0.1163 0.1228 REMARK 3 23 0.8744 - 0.8615 0.95 7002 369 0.1290 0.1432 REMARK 3 24 0.8615 - 0.8494 0.94 6938 365 0.1422 0.1599 REMARK 3 25 0.8494 - 0.8379 0.95 6983 367 0.1447 0.1466 REMARK 3 26 0.8379 - 0.8270 0.95 7019 370 0.1533 0.1633 REMARK 3 27 0.8270 - 0.8167 0.95 6933 365 0.1647 0.1715 REMARK 3 28 0.8167 - 0.8068 0.95 6975 367 0.1697 0.1836 REMARK 3 29 0.8068 - 0.7974 0.94 6965 367 0.1791 0.1700 REMARK 3 30 0.7974 - 0.7885 0.88 6482 341 0.2078 0.1993 REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : NULL REMARK 3 SOLVENT RADIUS : 1.11 REMARK 3 SHRINKAGE RADIUS : 0.90 REMARK 3 K_SOL : NULL REMARK 3 B_SOL : NULL REMARK 3 REMARK 3 ERROR ESTIMATES. REMARK 3 COORDINATE ERROR (MAXIMUM-LIKELIHOOD BASED) : 0.040 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 8.440 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 TWINNING INFORMATION. REMARK 3 FRACTION: NULL REMARK 3 OPERATOR: NULL REMARK 3 REMARK 3 DEVIATIONS FROM IDEAL VALUES. REMARK 3 RMSD COUNT REMARK 3 BOND : 0.009 2153 REMARK 3 ANGLE : 1.188 2988 REMARK 3 CHIRALITY : 0.100 314 REMARK 3 PLANARITY : 0.009 409 REMARK 3 DIHEDRAL : 12.888 812 REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : NULL REMARK 3 REMARK 3 NCS DETAILS REMARK 3 NUMBER OF NCS GROUPS : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 5MN1 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 13-DEC-16. REMARK 100 THE DEPOSITION ID IS D_1200002697. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 10-JUN-15 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 7.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : PETRA III, EMBL C/O DESY REMARK 200 BEAMLINE : P14 (MX2) REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.7069 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : PIXEL REMARK 200 DETECTOR MANUFACTURER : DECTRIS PILATUS 6M REMARK 200 INTENSITY-INTEGRATION SOFTWARE : XDS REMARK 200 DATA SCALING SOFTWARE : XDS REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 226625 REMARK 200 RESOLUTION RANGE HIGH (A) : 0.790 REMARK 200 RESOLUTION RANGE LOW (A) : 42.350 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 96.5 REMARK 200 DATA REDUNDANCY : 6.500 REMARK 200 R MERGE (I) : 0.03900 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 20.1000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 0.79 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 0.84 REMARK 200 COMPLETENESS FOR SHELL (%) : 93.3 REMARK 200 DATA REDUNDANCY IN SHELL : 6.50 REMARK 200 R MERGE FOR SHELL (I) : 0.67600 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 2.400 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: PHASER REMARK 200 STARTING MODEL: 4I8H REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 46.20 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.29 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 0.2 M AMMONIUM SULFATE, 0.1 M HEPES PH REMARK 280 7.5, 17% (W/V) PEG 8000, VAPOR DIFFUSION, SITTING DROP, REMARK 280 TEMPERATURE 277K 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 27.34600 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 33.46800 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 29.13450 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 33.46800 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 27.34600 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 29.13450 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 SOFTWARE DETERMINED QUATERNARY STRUCTURE: MONOMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 1090 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 8970 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -56.0 KCAL/MOL 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 CE NZ REMARK 470 LYS A 145 NZ REMARK 470 LYS A 222 CE NZ REMARK 470 LYS A 239 NZ 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 703 O HOH A 756 2.17 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 48 -169.38 -161.60 REMARK 500 ASP A 71 -82.22 -119.00 REMARK 500 ASP A 153 -42.96 66.04 REMARK 500 SER A 214 -63.03 -120.73 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 777 DISTANCE = 5.83 ANGSTROMS REMARK 525 HOH A 778 DISTANCE = 5.94 ANGSTROMS REMARK 525 HOH A 779 DISTANCE = 6.02 ANGSTROMS REMARK 525 HOH A 780 DISTANCE = 6.19 ANGSTROMS REMARK 525 HOH A 781 DISTANCE = 6.27 ANGSTROMS REMARK 525 HOH A 782 DISTANCE = 6.35 ANGSTROMS REMARK 525 HOH A 783 DISTANCE = 6.67 ANGSTROMS REMARK 525 HOH A 784 DISTANCE = 6.79 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 301 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 GLU A 70 OE1 REMARK 620 2 ASN A 72 O 91.0 REMARK 620 3 VAL A 75 O 166.1 81.4 REMARK 620 4 GLU A 80 OE2 103.3 159.1 87.4 REMARK 620 5 HOH A 419 O 86.3 89.2 105.0 76.8 REMARK 620 6 HOH A 545 O 80.2 103.1 90.2 94.4 161.8 REMARK 620 N 1 2 3 4 5 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 301 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue SO4 A 302 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue SO4 A 303 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue SO4 A 304 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC5 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue SO4 A 305 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC6 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue 2AP A 306 DBREF 5MN1 A 16 245 UNP P00760 TRY1_BOVIN 24 246 SEQRES 1 A 223 ILE VAL GLY GLY TYR THR CYS GLY ALA ASN THR VAL PRO SEQRES 2 A 223 TYR GLN VAL SER LEU ASN SER GLY TYR HIS PHE CYS GLY SEQRES 3 A 223 GLY SER LEU ILE ASN SER GLN TRP VAL VAL SER ALA ALA SEQRES 4 A 223 HIS CYS TYR LYS SER GLY ILE GLN VAL ARG LEU GLY GLU SEQRES 5 A 223 ASP ASN ILE ASN VAL VAL GLU GLY ASN GLU GLN PHE ILE SEQRES 6 A 223 SER ALA SER LYS SER ILE VAL HIS PRO SER TYR ASN SER SEQRES 7 A 223 ASN THR LEU ASN ASN ASP ILE MET LEU ILE LYS LEU LYS SEQRES 8 A 223 SER ALA ALA SER LEU ASN SER ARG VAL ALA SER ILE SER SEQRES 9 A 223 LEU PRO THR SER CYS ALA SER ALA GLY THR GLN CYS LEU SEQRES 10 A 223 ILE SER GLY TRP GLY ASN THR LYS SER SER GLY THR SER SEQRES 11 A 223 TYR PRO ASP VAL LEU LYS CYS LEU LYS ALA PRO ILE LEU SEQRES 12 A 223 SER ASP SER SER CYS LYS SER ALA TYR PRO GLY GLN ILE SEQRES 13 A 223 THR SER ASN MET PHE CYS ALA GLY TYR LEU GLU GLY GLY SEQRES 14 A 223 LYS ASP SER CYS GLN GLY ASP SER GLY GLY PRO VAL VAL SEQRES 15 A 223 CYS SER GLY LYS LEU GLN GLY ILE VAL SER TRP GLY SER SEQRES 16 A 223 GLY CYS ALA GLN LYS ASN LYS PRO GLY VAL TYR THR LYS SEQRES 17 A 223 VAL CYS ASN TYR VAL SER TRP ILE LYS GLN THR ILE ALA SEQRES 18 A 223 SER ASN HET CA A 301 1 HET SO4 A 302 10 HET SO4 A 303 5 HET SO4 A 304 5 HET SO4 A 305 5 HET 2AP A 306 7 HETNAM CA CALCIUM ION HETNAM SO4 SULFATE ION HETNAM 2AP 2-AMINOPYRIDINE FORMUL 2 CA CA 2+ FORMUL 3 SO4 4(O4 S 2-) FORMUL 7 2AP C5 H7 N2 1+ FORMUL 8 HOH *384(H2 O) HELIX 1 AA1 ALA A 55 TYR A 59 5 5 HELIX 2 AA2 SER A 164 TYR A 172 1 9 HELIX 3 AA3 TYR A 234 ASN A 245 1 12 SHEET 1 AA1 7 TYR A 20 THR A 21 0 SHEET 2 AA1 7 LYS A 156 PRO A 161 -1 O CYS A 157 N TYR A 20 SHEET 3 AA1 7 GLN A 135 GLY A 140 -1 N ILE A 138 O LEU A 158 SHEET 4 AA1 7 PRO A 198 CYS A 201 -1 O VAL A 200 N LEU A 137 SHEET 5 AA1 7 LYS A 204 TRP A 215 -1 O LYS A 204 N CYS A 201 SHEET 6 AA1 7 GLY A 226 LYS A 230 -1 O VAL A 227 N TRP A 215 SHEET 7 AA1 7 MET A 180 ALA A 183 -1 N PHE A 181 O TYR A 228 SHEET 1 AA2 7 GLN A 30 ASN A 34 0 SHEET 2 AA2 7 HIS A 40 ASN A 48 -1 O CYS A 42 N LEU A 33 SHEET 3 AA2 7 TRP A 51 SER A 54 -1 O VAL A 53 N SER A 45 SHEET 4 AA2 7 MET A 104 LEU A 108 -1 O ILE A 106 N VAL A 52 SHEET 5 AA2 7 GLN A 81 VAL A 90 -1 N ILE A 89 O LEU A 105 SHEET 6 AA2 7 GLN A 64 LEU A 67 -1 N LEU A 67 O GLN A 81 SHEET 7 AA2 7 GLN A 30 ASN A 34 -1 N SER A 32 O ARG A 66 SSBOND 1 CYS A 22 CYS A 157 1555 1555 2.05 SSBOND 2 CYS A 42 CYS A 58 1555 1555 2.04 SSBOND 3 CYS A 128 CYS A 232 1555 1555 2.04 SSBOND 4 CYS A 136 CYS A 201 1555 1555 2.05 SSBOND 5 CYS A 168 CYS A 182 1555 1555 2.04 SSBOND 6 CYS A 191 CYS A 220 1555 1555 2.02 LINK OE1 GLU A 70 CA CA A 301 1555 1555 2.26 LINK O ASN A 72 CA CA A 301 1555 1555 2.32 LINK O VAL A 75 CA CA A 301 1555 1555 2.28 LINK OE2 GLU A 80 CA CA A 301 1555 1555 2.33 LINK CA CA A 301 O HOH A 419 1555 1555 2.38 LINK CA CA A 301 O HOH A 545 1555 1555 2.34 SITE 1 AC1 6 GLU A 70 ASN A 72 VAL A 75 GLU A 80 SITE 2 AC1 6 HOH A 419 HOH A 545 SITE 1 AC2 11 HIS A 57 GLN A 192 GLY A 193 SER A 195 SITE 2 AC2 11 2AP A 306 HOH A 412 HOH A 413 HOH A 424 SITE 3 AC2 11 HOH A 470 HOH A 533 HOH A 589 SITE 1 AC3 8 LYS A 169 PRO A 173 GLY A 174 HOH A 401 SITE 2 AC3 8 HOH A 429 HOH A 497 HOH A 523 HOH A 552 SITE 1 AC4 9 LYS A 87 LYS A 107 THR A 149 TYR A 151 SITE 2 AC4 9 HOH A 405 HOH A 442 HOH A 445 HOH A 474 SITE 3 AC4 9 HOH A 674 SITE 1 AC5 9 PRO A 124 THR A 125 SER A 127 SER A 147 SITE 2 AC5 9 GLY A 148 LYS A 204 HOH A 463 HOH A 483 SITE 3 AC5 9 HOH A 674 SITE 1 AC6 11 ASP A 189 SER A 190 CYS A 191 GLN A 192 SITE 2 AC6 11 TRP A 215 GLY A 216 GLY A 219 GLY A 226 SITE 3 AC6 11 SO4 A 302 HOH A 535 HOH A 597 CRYST1 54.692 58.269 66.936 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 0.018284 0.000000 0.000000 0.00000 SCALE2 0.000000 0.017162 0.000000 0.00000 SCALE3 0.000000 0.000000 0.014940 0.00000