2PTN - Header Asymmetric Unit

HEADER HYDROLASE (SERINE PROTEINASE) 26-OCT-81 2PTN

TITLE ON THE DISORDERED ACTIVATION DOMAIN IN TRYPSINOGEN. TITLE 2 CHEMICAL LABELLING AND LOW-TEMPERATURE CRYSTALLOGRAPHY

COMPND MOL_ID: 1; COMPND 2 MOLECULE: TRYPSIN; COMPND 3 CHAIN: A; COMPND 4 EC: 3.4.21.4; COMPND 5 ENGINEERED: YES

SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: BOS TAURUS; SOURCE 3 ORGANISM_COMMON: CATTLE; SOURCE 4 ORGANISM_TAXID: 9913

KEYWDS HYDROLASE (SERINE PROTEINASE)

EXPDTA X-RAY DIFFRACTION

AUTHOR J.WALTER,W.STEIGEMANN,T.P.SINGH,H.BARTUNIK,W.BODE,R.HUBER

REVDAT 7 24-FEB-09 2PTN 1 VERSN REVDAT 6 15-APR-91 2PTN 2 CONECT REVDAT 5 09-APR-85 2PTN 1 JRNL REVDAT 4 14-MAR-85 2PTN 3 SEQRES ATOM REVDAT 3 23-FEB-84 2PTN 1 REMARK REVDAT 2 30-SEP-83 2PTN 1 REVDAT REVDAT 1 04-MAR-82 2PTN 0

SPRSDE 04-MAR-82 2PTN 1PTN

JRNL AUTH J.WALTER,W.STEIGEMANN,T.P.SINGH,H.BARTUNIK,W.BODE, JRNL AUTH 2 R.HUBER JRNL TITL ON THE DISORDERED ACTIVATION DOMAIN IN JRNL TITL 2 TRYPSINOGEN. CHEMICAL LABELLING AND JRNL TITL 3 LOW-TEMPERATURE CRYSTALLOGRAPHY JRNL REF ACTA CRYSTALLOGR.,SECT.B V. 38 1462 1982 JRNL REFN ISSN 0108-7681

REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH M.MARQUART,J.WALTER,J.DEISENHOFER,W.BODE,R.HUBER REMARK 1 TITL THE GEOMETRY OF THE REACTIVE SITE AND OF THE REMARK 1 TITL 2 PEPTIDE GROUPS IN TRYPSIN, TRYPSINOGEN AND ITS REMARK 1 TITL 3 COMPLEXES WITH INHIBITORS REMARK 1 REF ACTA CRYSTALLOGR.,SECT.B V. 39 480 1983 REMARK 1 REFN ISSN 0108-7681 REMARK 1 REFERENCE 2 REMARK 1 AUTH W.BODE,P.SCHWAGER,R.HUBER REMARK 1 TITL STRUCTURAL STUDIES ON THE PANCREATIC TRYPSIN REMARK 1 TITL 2 INHIBITOR-TRYPSIN COMPLEX AND ITS FREE COMPONENTS. REMARK 1 TITL 3 STRUCTURE AND FUNCTION RELATIONSHIPS IN SERINE REMARK 1 TITL 4 PROTEASE INHIBITION AND CATALYSIS REMARK 1 REF MIAMI WINTER SYMP. V. 11 43 1976 REMARK 1 REFN ISSN 0097-0808 REMARK 1 REFERENCE 3 REMARK 1 AUTH W.BODE,P.SCHWAGER REMARK 1 TITL THE REFINED CRYSTAL STRUCTURE OF BOVINE REMARK 1 TITL 2 BETA-TRYPSIN AT 1.8 ANGSTROMS RESOLUTION. II. REMARK 1 TITL 3 CRYSTALLOGRAPHIC REFINEMENT, CALCIUM BINDING SITE, REMARK 1 TITL 4 BENZAMIDINE BINDING SITE AND ACTIVE SITE AT PH 7.0 REMARK 1 REF J.MOL.BIOL. V. 98 693 1975 REMARK 1 REFN ISSN 0022-2836 REMARK 1 REFERENCE 4 REMARK 1 AUTH H.FEHLHAMMER,W.BODE REMARK 1 TITL THE REFINED CRYSTAL STRUCTURE OF BOVINE REMARK 1 TITL 2 BETA-TRYPSIN AT 1.8 ANGSTROMS RESOLUTION. I. REMARK 1 TITL 3 CRYSTALLIZATION, DATA COLLECTION AND APPLICATION REMARK 1 TITL 4 OF PATTERSON SEARCH TECHNIQUES REMARK 1 REF J.MOL.BIOL. V. 98 683 1975 REMARK 1 REFN ISSN 0022-2836 REMARK 1 REFERENCE 5 REMARK 1 AUTH W.BODE,P.SCHWAGER REMARK 1 TITL THE SINGLE CALCIUM-BINDING SITE OF CRYSTALLINE REMARK 1 TITL 2 BOVINE BETA-TRYPSIN REMARK 1 REF FEBS LETT. V. 56 139 1975 REMARK 1 REFN ISSN 0014-5793 REMARK 1 REFERENCE 6 REMARK 1 EDIT M.O.DAYHOFF REMARK 1 REF ATLAS OF PROTEIN SEQUENCE V. 5 105 1972 REMARK 1 REF 2 AND STRUCTURE (DATA SECTION) REMARK 1 PUBL NATIONAL BIOMEDICAL RESEARCH FOUNDATION, SILVER REMARK 1 PUBL 2 SPRING,MD. REMARK 1 REFN

REMARK 2 REMARK 2 RESOLUTION. 1.55 ANGSTROMS.

REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : NULL REMARK 3 AUTHORS : NULL REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.55 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 6.50 REMARK 3 DATA CUTOFF (SIGMA(F)) : NULL REMARK 3 DATA CUTOFF HIGH (ABS(F)) : NULL REMARK 3 DATA CUTOFF LOW (ABS(F)) : NULL REMARK 3 COMPLETENESS (WORKING+TEST) (%) : NULL REMARK 3 NUMBER OF REFLECTIONS : NULL REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : NULL REMARK 3 FREE R VALUE TEST SET SELECTION : NULL REMARK 3 R VALUE (WORKING SET) : 0.193 REMARK 3 FREE R VALUE : NULL REMARK 3 FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 FREE R VALUE TEST SET COUNT : NULL 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 : 1629 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 1 REMARK 3 SOLVENT ATOMS : 82 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) : NULL 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 2PTN 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 : NULL REMARK 200 TEMPERATURE (KELVIN) : NULL REMARK 200 PH : NULL REMARK 200 NUMBER OF CRYSTALS USED : NULL REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : NULL REMARK 200 RADIATION SOURCE : NULL REMARK 200 BEAMLINE : NULL REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : NULL REMARK 200 WAVELENGTH OR RANGE (A) : NULL REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : NULL REMARK 200 DETECTOR MANUFACTURER : NULL REMARK 200 INTENSITY-INTEGRATION SOFTWARE : NULL REMARK 200 DATA SCALING SOFTWARE : NULL REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : NULL REMARK 200 RESOLUTION RANGE HIGH (A) : NULL REMARK 200 RESOLUTION RANGE LOW (A) : NULL REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : NULL REMARK 200 DATA REDUNDANCY : NULL REMARK 200 R MERGE (I) : NULL 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: NULL REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: NULL 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: NULL

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 27.44500 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 33.81500 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 29.26000 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 33.81500 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 27.44500 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 29.26000 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 480 REMARK 480 ZERO OCCUPANCY ATOM REMARK 480 THE FOLLOWING RESIDUES HAVE ATOMS MODELED WITH ZERO REMARK 480 OCCUPANCY. THE LOCATION AND PROPERTIES OF THESE ATOMS REMARK 480 MAY NOT BE RELIABLE. (M=MODEL NUMBER; RES=RESIDUE NAME; REMARK 480 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE): REMARK 480 M RES C SSEQI ATOMS REMARK 480 LYS A 60 NZ REMARK 480 SER A 61 OG REMARK 480 SER A 84 OG REMARK 480 SER A 86 OG REMARK 480 LYS A 87 CD CE NZ REMARK 480 SER A 88 OG REMARK 480 LYS A 109 CD CE NZ REMARK 480 SER A 110 OG REMARK 480 SER A 113 OG REMARK 480 ASN A 115 CG OD1 ND2 REMARK 480 ARG A 117 NH1 NH2 REMARK 480 SER A 122 OG REMARK 480 THR A 125 OG1 REMARK 480 SER A 127 OG REMARK 480 GLN A 135 OE1 NE2 REMARK 480 LYS A 145 CD CE NZ REMARK 480 SER A 146 OG REMARK 480 SER A 147 OG REMARK 480 THR A 149 OG1 CG2 REMARK 480 LYS A 156 NZ REMARK 480 ASP A 165 CG OD1 OD2 REMARK 480 SER A 166 OG REMARK 480 SER A 167 OG REMARK 480 LYS A 169 CE NZ REMARK 480 SER A 170 OG REMARK 480 SER A 178 OG REMARK 480 LEU A 185 CD1 CD2 REMARK 480 GLU A 186 OE1 OE2 REMARK 480 LYS A 188 CE NZ REMARK 480 GLN A 192 OE1 NE2 REMARK 480 LYS A 204 NZ REMARK 480 GLN A 221 OE1 NE2 REMARK 480 LYS A 222 CD CE NZ REMARK 480 ASN A 223 OD1 ND2 REMARK 480 LYS A 230 NZ REMARK 480 SER A 236 OG REMARK 480 LYS A 239 CD CE NZ REMARK 480 GLN A 240 CG CD OE1 NE2

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 OH TYR A 59 OD2 ASP A 153 4556 2.17 REMARK 500 REMARK 500 REMARK: NULL 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 TRP A 51 NE1 TRP A 51 CE2 -0.098 REMARK 500 TRP A 141 NE1 TRP A 141 CE2 -0.098 REMARK 500 TRP A 215 NE1 TRP A 215 CE2 -0.100 REMARK 500 TRP A 237 NE1 TRP A 237 CE2 -0.096 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 ASP A 71 -74.89 -127.51 REMARK 500 ASN A 115 -166.06 -129.52 REMARK 500 VAL A 213 108.56 -55.27 REMARK 500 SER A 214 -70.21 -111.61 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 ASN A 25 0.07 SIDE_CHAIN REMARK 500 GLN A 30 0.07 SIDE_CHAIN REMARK 500 ASN A 79 0.08 SIDE_CHAIN REMARK 500 ASN A 95 0.08 SIDE_CHAIN REMARK 500 ASN A 115 0.09 SIDE_CHAIN REMARK 500 ASP A 165 0.07 SIDE_CHAIN REMARK 500 GLN A 210 0.07 SIDE_CHAIN REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: MAIN CHAIN PLANARITY REMARK 500 REMARK 500 THE FOLLOWING RESIDUES HAVE A PSEUDO PLANARITY REMARK 500 TORSION, C(I) - CA(I) - N(I+1) - O(I), GREATER REMARK 500 10.0 DEGREES. (M=MODEL NUMBER; RES=RESIDUE NAME; REMARK 500 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; REMARK 500 I=INSERTION CODE). REMARK 500 REMARK 500 M RES CSSEQI ANGLE REMARK 500 VAL A 27 10.29 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 807 DISTANCE = 6.34 ANGSTROMS REMARK 525 HOH A 808 DISTANCE = 7.55 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 480 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 GLU A 70 OE1 REMARK 620 2 ASN A 72 O 86.9 REMARK 620 3 VAL A 75 O 162.3 80.4 REMARK 620 4 GLU A 80 OE2 107.1 160.1 88.4 REMARK 620 5 HOH A 714 O 85.1 86.7 106.3 80.7 REMARK 620 6 HOH A 711 O 80.0 99.9 89.9 96.5 163.4 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 480

DBREF 2PTN A 16 245 UNP P00760 TRY1_BOVIN 21 243

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 480 1

HETNAM CA CALCIUM ION

FORMUL 2 CA CA 2+ FORMUL 3 HOH *82(H2 O)

HELIX 1 H1 SER A 164 ILE A 176 1SNGL ALPHA TURN,REST IRREG. 13 HELIX 2 H2 LYS A 230 VAL A 235 5CONTIGUOUS WITH H3 6 HELIX 3 H3 SER A 236 ASN A 245 1CONTIGUOUS WITH H2 10

SHEET 1 A 7 TYR A 20 THR A 21 0 SHEET 2 A 7 LYS A 156 PRO A 161 -1 N CYS A 157 O TYR A 20 SHEET 3 A 7 GLN A 135 GLY A 140 -1 N CYS A 136 O ALA A 160 SHEET 4 A 7 PRO A 198 CYS A 201 -1 O PRO A 198 N SER A 139 SHEET 5 A 7 LYS A 204 TRP A 215 -1 O LYS A 204 N CYS A 201 SHEET 6 A 7 GLY A 226 LYS A 230 -1 N VAL A 227 O TRP A 215 SHEET 7 A 7 MET A 180 ALA A 183 -1 O PHE A 181 N TYR A 228 SHEET 1 B 7 GLN A 30 ASN A 34 0 SHEET 2 B 7 HIS A 40 ASN A 48 -1 N PHE A 41 O LEU A 33 SHEET 3 B 7 TRP A 51 SER A 54 -1 O TRP A 51 N ILE A 47 SHEET 4 B 7 MET A 104 LEU A 108 -1 O MET A 104 N SER A 54 SHEET 5 B 7 GLN A 81 VAL A 90 -1 N SER A 86 O LYS A 107 SHEET 6 B 7 GLN A 64 LEU A 67 -1 N VAL A 65 O ILE A 83 SHEET 7 B 7 GLN A 30 ASN A 34 -1 O SER A 32 N ARG A 66

SSBOND 1 CYS A 22 CYS A 157 1555 1555 2.04 SSBOND 2 CYS A 42 CYS A 58 1555 1555 2.02 SSBOND 3 CYS A 128 CYS A 232 1555 1555 2.03 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 2.05

LINK OE1 GLU A 70 CA CA A 480 1555 1555 2.31 LINK O ASN A 72 CA CA A 480 1555 1555 2.28 LINK O VAL A 75 CA CA A 480 1555 1555 2.26 LINK OE2 GLU A 80 CA CA A 480 1555 1555 2.31 LINK CA CA A 480 O HOH A 714 1555 1555 2.28 LINK CA CA A 480 O HOH A 711 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 711 HOH A 714

CRYST1 54.890 58.520 67.630 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 0.018218 0.000000 0.000000 0.00000

SCALE2 0.000000 0.017088 0.000000 0.00000

SCALE3 0.000000 0.000000 0.014786 0.00000