1HTD - Header Asymmetric Unit

HEADER METALLOPROTEASE 20-JAN-94 1HTD

TITLE STRUCTURAL INTERACTION OF NATURAL AND SYNTHETIC INHIBITORS TITLE 2 WITH THE VENOM METALLOPROTEINASE, ATROLYSIN C (HT-D)

COMPND MOL_ID: 1; COMPND 2 MOLECULE: ATROLYSIN C; COMPND 3 CHAIN: A, B; COMPND 4 SYNONYM: HEMORRHAGIC TOXIN C, FORM D; COMPND 5 EC: 3.4.24.42

SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: CROTALUS ATROX; SOURCE 3 ORGANISM_COMMON: WESTERN DIAMONDBACK RATTLESNAKE; SOURCE 4 ORGANISM_TAXID: 8730; SOURCE 5 OTHER_DETAILS: ISOLATED FROM VENOM

KEYWDS METALLOPROTEASE

EXPDTA X-RAY DIFFRACTION

AUTHOR D.ZHANG,I.BOTOS,F.-X.GOMIS-RUETH,R.DOLL,C.BLOOD,F.G.NJOROGE, AUTHOR 2 J.W.FOX,W.BODE,E.F.MEYER

REVDAT 3 24-FEB-09 1HTD 1 VERSN REVDAT 2 01-APR-03 1HTD 1 JRNL REVDAT 1 15-SEP-95 1HTD 0

JRNL AUTH D.ZHANG,I.BOTOS,F.X.GOMIS-RUTH,R.DOLL,C.BLOOD, JRNL AUTH 2 F.G.NJOROGE,J.W.FOX,W.BODE,E.F.MEYER JRNL TITL STRUCTURAL INTERACTION OF NATURAL AND SYNTHETIC JRNL TITL 2 INHIBITORS WITH THE VENOM METALLOPROTEINASE, JRNL TITL 3 ATROLYSIN C (FORM D). JRNL REF PROC.NATL.ACAD.SCI.USA V. 91 8447 1994 JRNL REFN ISSN 0027-8424 JRNL PMID 8078901 JRNL DOI 10.1073/PNAS.91.18.8447

REMARK 1

REMARK 2 REMARK 2 RESOLUTION. 2.10 ANGSTROMS.

REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : X-PLOR REMARK 3 AUTHORS : BRUNGER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.10 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 25.00 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) (%) : NULL REMARK 3 NUMBER OF REFLECTIONS : 18499 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) : 0.180 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 : 3210 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 4 REMARK 3 SOLVENT ATOMS : 150 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) : 2.26 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 1HTD 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: X-PLOR REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL

REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 52.52 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.59 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: NULL

REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 65 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -Y,X-Y,Z+2/3 REMARK 290 3555 -X+Y,-X,Z+1/3 REMARK 290 4555 -X,-Y,Z+1/2 REMARK 290 5555 Y,-X+Y,Z+1/6 REMARK 290 6555 X-Y,X,Z+5/6 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 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 2 0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 58.50667 REMARK 290 SMTRY1 3 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 3 -0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 29.25333 REMARK 290 SMTRY1 4 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 43.88000 REMARK 290 SMTRY1 5 0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 5 -0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 5 0.000000 0.000000 1.000000 14.62667 REMARK 290 SMTRY1 6 0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 6 0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 6 0.000000 0.000000 1.000000 73.13333 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: DIMERIC REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B 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 465 REMARK 465 MISSING RESIDUES REMARK 465 THE FOLLOWING RESIDUES WERE NOT LOCATED IN THE REMARK 465 EXPERIMENT. (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN REMARK 465 IDENTIFIER; SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.) REMARK 465 REMARK 465 M RES C SSSEQI REMARK 465 GLN A 1 REMARK 465 ASN A 2 REMARK 465 GLN B 1 REMARK 465 ASN B 2

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 ASN A 88 N - CA - CB ANGL. DEV. = -12.0 DEGREES REMARK 500 ASP A 153 N - CA - CB ANGL. DEV. = 15.1 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 ASP A 85 -74.15 -112.62 REMARK 500 ASP A 104 171.51 -57.05 REMARK 500 GLU A 105 42.92 35.75 REMARK 500 CYS A 117 -10.75 77.89 REMARK 500 ASP B 55 145.06 -170.45 REMARK 500 ASP B 85 -70.82 -121.78 REMARK 500 ASP B 104 -125.29 -31.02 REMARK 500 GLU B 105 75.26 -52.37 REMARK 500 GLU B 106 40.07 36.18 REMARK 500 CYS B 117 -5.05 84.68 REMARK 500 GLN B 192 -77.70 -71.56 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 ARG B 159 0.30 SIDE_CHAIN 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 419 DISTANCE = 7.69 ANGSTROMS REMARK 525 HOH B 345 DISTANCE = 5.69 ANGSTROMS REMARK 525 HOH A 453 DISTANCE = 5.21 ANGSTROMS REMARK 525 HOH A 463 DISTANCE = 10.33 ANGSTROMS REMARK 525 HOH A 464 DISTANCE = 9.85 ANGSTROMS REMARK 525 HOH A 473 DISTANCE = 8.96 ANGSTROMS

REMARK 600 REMARK 600 HETEROGEN REMARK 600 REMARK 600 WATER MOLECULES 301, 302 ARE COORDINATED WITH TETRAHEDRAL REMARK 600 GEOMETRY TO ACTIVE SITE ZN ATOMS

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 ZN A 401 ZN REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HOH A 479 O REMARK 620 2 HIS A 142 NE2 118.2 REMARK 620 3 HIS A 146 NE2 106.3 108.3 REMARK 620 4 HIS A 152 NE2 111.9 105.7 105.8 REMARK 620 N 1 2 3 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CA A 403 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASP A 93 OD2 REMARK 620 2 GLU A 9 OE1 93.2 REMARK 620 3 HOH A 416 O 71.9 88.9 REMARK 620 4 ASP A 93 OD1 51.2 91.5 123.0 REMARK 620 5 HOH A 430 O 126.2 92.1 161.8 75.2 REMARK 620 6 ASN A 200 OD1 145.8 88.7 74.0 163.0 87.8 REMARK 620 7 CYS A 197 O 81.0 174.2 88.9 85.2 91.7 95.8 REMARK 620 N 1 2 3 4 5 6 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 ZN B 402 ZN REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS B 152 NE2 REMARK 620 2 HIS B 146 NE2 104.8 REMARK 620 3 HIS B 142 NE2 104.2 97.2 REMARK 620 4 HOH B 302 O 118.4 117.2 112.4 REMARK 620 N 1 2 3 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CA B 404 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASN B 200 OD1 REMARK 620 2 GLU B 9 OE1 84.3 REMARK 620 3 ASP B 93 OD1 160.9 96.0 REMARK 620 4 CYS B 197 O 94.6 177.3 85.9 REMARK 620 5 HOH B 349 O 71.3 89.4 127.8 87.9 REMARK 620 6 HOH B 357 O 80.3 94.3 80.6 88.0 150.8 REMARK 620 7 ASP B 93 OD2 147.4 100.3 51.4 79.3 76.5 130.8 REMARK 620 N 1 2 3 4 5 6

REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: ZNA REMARK 800 EVIDENCE_CODE: AUTHOR REMARK 800 SITE_DESCRIPTION: ZINC BINDING SITE IN CHAIN A. THEY ARE REMARK 800 IDENTIFIED BY CONSERVED RESIDUES HEXXHXXGXXH IN BOTH VENOM AND REMARK 800 MAMMALIAN COLLAGENASES REMARK 800 SITE_IDENTIFIER: ZNB REMARK 800 EVIDENCE_CODE: AUTHOR REMARK 800 SITE_DESCRIPTION: ZINC BINDING SITE IN CHAIN B. THEY ARE REMARK 800 IDENTIFIED BY CONSERVED RESIDUES HEXXHXXGXXH IN BOTH VENOM AND REMARK 800 MAMMALIAN COLLAGENASES REMARK 800 SITE_IDENTIFIER: CAA REMARK 800 EVIDENCE_CODE: AUTHOR REMARK 800 SITE_DESCRIPTION: CALCIUM ION BINDING SITE IN CHAIN A REMARK 800 SITE_IDENTIFIER: CAB REMARK 800 EVIDENCE_CODE: AUTHOR REMARK 800 SITE_DESCRIPTION: CALCIUM ION BINDING SITE IN CHAIN B REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ZN A 401 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 403 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ZN B 402 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA B 404

DBREF 1HTD A 1 202 UNP P15167 HRTD_CROAT 192 393 DBREF 1HTD B 1 202 UNP P15167 HRTD_CROAT 192 393

SEQRES 1 A 202 GLN ASN LEU PRO GLN ARG TYR ILE GLU LEU VAL VAL VAL SEQRES 2 A 202 ALA ASP HIS ARG VAL PHE MET LYS TYR ASN SER ASP LEU SEQRES 3 A 202 ASN THR ILE ARG THR ARG VAL HIS GLU ILE VAL ASN PHE SEQRES 4 A 202 ILE ASN GLY PHE TYR ARG SER LEU ASN ILE HIS VAL SER SEQRES 5 A 202 LEU THR ASP LEU GLU ILE TRP SER ASN GLU ASP GLN ILE SEQRES 6 A 202 ASN ILE GLN SER ALA SER SER ASP THR LEU ASN ALA PHE SEQRES 7 A 202 ALA GLU TRP ARG GLU THR ASP LEU LEU ASN ARG LYS SER SEQRES 8 A 202 HIS ASP ASN ALA GLN LEU LEU THR ALA ILE GLU LEU ASP SEQRES 9 A 202 GLU GLU THR LEU GLY LEU ALA PRO LEU GLY THR MET CYS SEQRES 10 A 202 ASP PRO LYS LEU SER ILE GLY ILE VAL GLN ASP HIS SER SEQRES 11 A 202 PRO ILE ASN LEU LEU MET GLY VAL THR MET ALA HIS GLU SEQRES 12 A 202 LEU GLY HIS ASN LEU GLY MET GLU HIS ASP GLY LYS ASP SEQRES 13 A 202 CYS LEU ARG GLY ALA SER LEU CYS ILE MET ARG PRO GLY SEQRES 14 A 202 LEU THR LYS GLY ARG SER TYR GLU PHE SER ASP ASP SER SEQRES 15 A 202 MET HIS TYR TYR GLU ARG PHE LEU LYS GLN TYR LYS PRO SEQRES 16 A 202 GLN CYS ILE LEU ASN LYS PRO SEQRES 1 B 202 GLN ASN LEU PRO GLN ARG TYR ILE GLU LEU VAL VAL VAL SEQRES 2 B 202 ALA ASP HIS ARG VAL PHE MET LYS TYR ASN SER ASP LEU SEQRES 3 B 202 ASN THR ILE ARG THR ARG VAL HIS GLU ILE VAL ASN PHE SEQRES 4 B 202 ILE ASN GLY PHE TYR ARG SER LEU ASN ILE HIS VAL SER SEQRES 5 B 202 LEU THR ASP LEU GLU ILE TRP SER ASN GLU ASP GLN ILE SEQRES 6 B 202 ASN ILE GLN SER ALA SER SER ASP THR LEU ASN ALA PHE SEQRES 7 B 202 ALA GLU TRP ARG GLU THR ASP LEU LEU ASN ARG LYS SER SEQRES 8 B 202 HIS ASP ASN ALA GLN LEU LEU THR ALA ILE GLU LEU ASP SEQRES 9 B 202 GLU GLU THR LEU GLY LEU ALA PRO LEU GLY THR MET CYS SEQRES 10 B 202 ASP PRO LYS LEU SER ILE GLY ILE VAL GLN ASP HIS SER SEQRES 11 B 202 PRO ILE ASN LEU LEU MET GLY VAL THR MET ALA HIS GLU SEQRES 12 B 202 LEU GLY HIS ASN LEU GLY MET GLU HIS ASP GLY LYS ASP SEQRES 13 B 202 CYS LEU ARG GLY ALA SER LEU CYS ILE MET ARG PRO GLY SEQRES 14 B 202 LEU THR LYS GLY ARG SER TYR GLU PHE SER ASP ASP SER SEQRES 15 B 202 MET HIS TYR TYR GLU ARG PHE LEU LYS GLN TYR LYS PRO SEQRES 16 B 202 GLN CYS ILE LEU ASN LYS PRO

HET ZN A 401 1 HET CA A 403 1 HET ZN B 402 1 HET CA B 404 1

HETNAM ZN ZINC ION HETNAM CA CALCIUM ION

FORMUL 3 ZN 2(ZN 2+) FORMUL 4 CA 2(CA 2+) FORMUL 7 HOH *150(H2 O)

HELIX 1 H1A HIS A 16 TYR A 22 1 7 HELIX 2 H2A LEU A 26 ARG A 45 1 20 HELIX 3 H3A SER A 71 LYS A 90 1 20 HELIX 4 H4A ASN A 133 LEU A 148 1 16 HELIX 5 H5A ASP A 180 LYS A 194 1 15 HELIX 6 H1B HIS B 16 TYR B 22 1 7 HELIX 7 H2B LEU B 26 ARG B 45 1 20 HELIX 8 H3B SER B 71 LYS B 90 1 20 HELIX 9 H4B ASN B 133 LEU B 148 1 16 HELIX 10 H5B ASP B 180 LYS B 194 1 15

SHEET 1 S1A 5 ILE A 49 TRP A 59 0 SHEET 2 S1A 5 ARG A 6 ALA A 14 1 SHEET 3 S1A 5 ASP A 93 ALA A 100 1 SHEET 4 S1A 5 SER A 122 ASP A 128 1 SHEET 5 S1A 5 LEU A 108 PRO A 112 -1 SHEET 1 S2A 2 HIS A 152 CYS A 157 0 SHEET 2 S2A 2 MET A 166 LYS A 172 1 SHEET 1 S1B 5 ILE B 49 TRP B 59 0 SHEET 2 S1B 5 ARG B 6 ALA B 14 1 SHEET 3 S1B 5 ASP B 93 ALA B 100 1 SHEET 4 S1B 5 SER B 122 ASP B 128 1 SHEET 5 S1B 5 LEU B 108 PRO B 112 -1 SHEET 1 S2B 2 HIS B 152 CYS B 157 0 SHEET 2 S2B 2 MET B 166 LYS B 172 1

SSBOND 1 CYS A 117 CYS A 197 1555 1555 2.03 SSBOND 2 CYS A 157 CYS A 164 1555 1555 2.03 SSBOND 3 CYS B 117 CYS B 197 1555 1555 2.01 SSBOND 4 CYS B 157 CYS B 164 1555 1555 2.03

LINK ZN ZN A 401 O HOH A 479 1555 1555 2.11 LINK ZN ZN A 401 NE2 HIS A 142 1555 1555 2.01 LINK ZN ZN A 401 NE2 HIS A 146 1555 1555 2.02 LINK ZN ZN A 401 NE2 HIS A 152 1555 1555 2.02 LINK CA CA A 403 OD2 ASP A 93 1555 1555 2.48 LINK CA CA A 403 OE1 GLU A 9 1555 1555 2.34 LINK CA CA A 403 O HOH A 416 1555 1555 1.83 LINK CA CA A 403 OD1 ASP A 93 1555 1555 2.42 LINK CA CA A 403 O HOH A 430 1555 1555 1.76 LINK CA CA A 403 OD1 ASN A 200 1555 1555 2.50 LINK CA CA A 403 O CYS A 197 1555 1555 2.22 LINK ZN ZN B 402 NE2 HIS B 152 1555 1555 2.04 LINK ZN ZN B 402 NE2 HIS B 146 1555 1555 2.03 LINK ZN ZN B 402 NE2 HIS B 142 1555 1555 2.03 LINK ZN ZN B 402 O HOH B 302 1555 1555 2.08 LINK CA CA B 404 OD1 ASN B 200 1555 1555 2.34 LINK CA CA B 404 OE1 GLU B 9 1555 1555 2.36 LINK CA CA B 404 OD1 ASP B 93 1555 1555 2.42 LINK CA CA B 404 O CYS B 197 1555 1555 2.26 LINK CA CA B 404 O HOH B 349 1555 1555 1.79 LINK CA CA B 404 O HOH B 357 1555 1555 2.73 LINK CA CA B 404 OD2 ASP B 93 1555 1555 2.54

SITE 1 ZNA 3 HIS A 142 HIS A 146 HIS A 152 SITE 1 ZNB 3 HIS B 142 HIS B 146 HIS B 152 SITE 1 CAA 3 GLU A 9 ASP A 93 ASN A 200 SITE 1 CAB 3 GLU B 9 ASP B 93 ASN B 200 SITE 1 AC1 4 HIS A 142 HIS A 146 HIS A 152 HOH A 479 SITE 1 AC2 6 GLU A 9 ASP A 93 CYS A 197 ASN A 200 SITE 2 AC2 6 HOH A 416 HOH A 430 SITE 1 AC3 4 HIS B 142 HIS B 146 HIS B 152 HOH B 302 SITE 1 AC4 6 GLU B 9 ASP B 93 CYS B 197 ASN B 200 SITE 2 AC4 6 HOH B 349 HOH B 357

CRYST1 97.320 97.320 87.760 90.00 90.00 120.00 P 65 12

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 0.010275 0.005932 0.000000 0.00000

SCALE2 0.000000 0.011865 0.000000 0.00000

SCALE3 0.000000 0.000000 0.011395 0.00000