HEADER HYDROLASE 27-DEC-00 1HT3 TITLE MERCURY INDUCED MODIFICATIONS IN THE STEREOCHEMISTRY OF THE ACTIVE TITLE 2 SITE THROUGH CYS-73 IN A SERINE PROTEASE: CRYSTAL STRUCTURE OF THE TITLE 3 COMPLEX OF A PARTIALLY MODIFIED PROTEINASE K WITH MERCURY AT 1.8 A TITLE 4 RESOLUTION CAVEAT 1HT3 RESIDUES THR58 AND PRO171 HAVE CHIRALITY ERROR COMPND MOL_ID: 1; COMPND 2 MOLECULE: PROTEINASE K; COMPND 3 CHAIN: A; COMPND 4 EC: 3.4.21.64 SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ENGYODONTIUM ALBUM; SOURCE 3 ORGANISM_TAXID: 37998 KEYWDS PROTEINASE K, MERCURY, STEREOCHEMISTRY, HYDROLASE EXPDTA X-RAY DIFFRACTION AUTHOR S.GOURINATH REVDAT 5 30-OCT-24 1HT3 1 REMARK SEQADV LINK REVDAT 4 24-JAN-18 1HT3 1 JRNL REVDAT 3 24-FEB-09 1HT3 1 VERSN REVDAT 2 15-JUL-03 1HT3 1 JRNL REMARK MASTER REVDAT 1 27-JUN-01 1HT3 0 JRNL AUTH S.GOURINATH,M.DEGENHARDT,S.ESCHENBURG,K.MOORE,L.J.DELUCAS, JRNL AUTH 2 C.H.BETZEL,T.P.SINGH JRNL TITL MERCURY INDUCED MODIFICATIONS IN THE STEREOCHEMISTRY OF THE JRNL TITL 2 ACTIVE SITE THROUGH CYS-73 IN A SERINE PROTEASE--CRYSTAL JRNL TITL 3 STRUCTURE OF THE COMPLEX OF A PARTIALLY MODIFIED PROTEINASE JRNL TITL 4 K WITH MERCURY AT 1.8 A RESOLUTION JRNL REF INDIAN J.BIOCHEM.BIOPHYS. V. 38 298 2001 JRNL REFN ISSN 0301-1208 JRNL PMID 11886076 REMARK 2 REMARK 2 RESOLUTION. 1.80 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC REMARK 3 AUTHORS : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER, REMARK 3 : NICHOLLS,WINN,LONG,VAGIN REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.80 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 10.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 98.3 REMARK 3 NUMBER OF REFLECTIONS : 21930 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : NULL REMARK 3 FREE R VALUE TEST SET SELECTION : RANDOM, 2.5% REFLECTION REMARK 3 R VALUE (WORKING + TEST SET) : 0.164 REMARK 3 R VALUE (WORKING SET) : 0.164 REMARK 3 FREE R VALUE : 0.221 REMARK 3 FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 FREE R VALUE TEST SET COUNT : 550 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 2031 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 3 REMARK 3 SOLVENT ATOMS : 244 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 14.60 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 16.70 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 OVERALL COORDINATE ERROR. REMARK 3 ESU BASED ON R VALUE (A): NULL REMARK 3 ESU BASED ON FREE R VALUE (A): NULL REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): NULL REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 DISTANCE RESTRAINTS. RMS SIGMA REMARK 3 BOND LENGTH (A) : NULL ; NULL REMARK 3 ANGLE DISTANCE (A) : NULL ; NULL REMARK 3 INTRAPLANAR 1-4 DISTANCE (A) : NULL ; NULL REMARK 3 H-BOND OR METAL COORDINATION (A) : NULL ; NULL REMARK 3 REMARK 3 PLANE RESTRAINT (A) : NULL ; NULL REMARK 3 CHIRAL-CENTER RESTRAINT (A**3) : NULL ; NULL REMARK 3 REMARK 3 NON-BONDED CONTACT RESTRAINTS. REMARK 3 SINGLE TORSION (A) : NULL ; NULL REMARK 3 MULTIPLE TORSION (A) : NULL ; NULL REMARK 3 H-BOND (X...Y) (A) : NULL ; NULL REMARK 3 H-BOND (X-H...Y) (A) : NULL ; NULL REMARK 3 REMARK 3 CONFORMATIONAL TORSION ANGLE RESTRAINTS. REMARK 3 SPECIFIED (DEGREES) : NULL ; NULL REMARK 3 PLANAR (DEGREES) : NULL ; NULL REMARK 3 STAGGERED (DEGREES) : NULL ; NULL REMARK 3 TRANSVERSE (DEGREES) : NULL ; 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 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1HT3 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 03-JAN-01. REMARK 100 THE DEPOSITION ID IS D_1000012568. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : NULL REMARK 200 TEMPERATURE (KELVIN) : 277 REMARK 200 PH : 6.5 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 : RIGAKU RU300 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 : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : MARRESEARCH REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 21939 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.800 REMARK 200 RESOLUTION RANGE LOW (A) : 20.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : -3.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 98.3 REMARK 200 DATA REDUNDANCY : 6.200 REMARK 200 R MERGE (I) : 0.05300 REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 10.1000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.80 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.90 REMARK 200 COMPLETENESS FOR SHELL (%) : 98.0 REMARK 200 DATA REDUNDANCY IN SHELL : 2.10 REMARK 200 R MERGE FOR SHELL (I) : 0.16500 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 <I/SIGMA(I)> FOR SHELL : 4.300 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: AMORE REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 43.88 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.19 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: SODIUM NITRATE, CALCIUM CHLORIDE, PH REMARK 280 6.5, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 277K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 43 21 2 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,-Y,Z+1/2 REMARK 290 3555 -Y+1/2,X+1/2,Z+3/4 REMARK 290 4555 Y+1/2,-X+1/2,Z+1/4 REMARK 290 5555 -X+1/2,Y+1/2,-Z+3/4 REMARK 290 6555 X+1/2,-Y+1/2,-Z+1/4 REMARK 290 7555 Y,X,-Z REMARK 290 8555 -Y,-X,-Z+1/2 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 54.35000 REMARK 290 SMTRY1 3 0.000000 -1.000000 0.000000 34.18000 REMARK 290 SMTRY2 3 1.000000 0.000000 0.000000 34.18000 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 81.52500 REMARK 290 SMTRY1 4 0.000000 1.000000 0.000000 34.18000 REMARK 290 SMTRY2 4 -1.000000 0.000000 0.000000 34.18000 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 27.17500 REMARK 290 SMTRY1 5 -1.000000 0.000000 0.000000 34.18000 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 34.18000 REMARK 290 SMTRY3 5 0.000000 0.000000 -1.000000 81.52500 REMARK 290 SMTRY1 6 1.000000 0.000000 0.000000 34.18000 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 34.18000 REMARK 290 SMTRY3 6 0.000000 0.000000 -1.000000 27.17500 REMARK 290 SMTRY1 7 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY2 7 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 7 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 8 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY2 8 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 8 0.000000 0.000000 -1.000000 54.35000 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: 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 580 O HOH A 737 1.91 REMARK 500 OD2 ASP A 112 O HOH A 726 1.98 REMARK 500 O HOH A 655 O HOH A 656 2.13 REMARK 500 O THR A 223 O HOH A 555 2.16 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 O HOH A 647 O HOH A 647 7465 1.83 REMARK 500 O HOH A 708 O HOH A 708 7465 2.13 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 39 -148.43 -165.83 REMARK 500 PRO A 171 -73.26 95.37 REMARK 500 SER A 210 -169.64 -162.03 REMARK 500 SER A 216 -165.84 -112.84 REMARK 500 ASN A 270 71.45 -108.94 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: NON-CIS, NON-TRANS REMARK 500 REMARK 500 THE FOLLOWING PEPTIDE BONDS DEVIATE SIGNIFICANTLY FROM BOTH REMARK 500 CIS AND TRANS CONFORMATION. CIS BONDS, IF ANY, ARE LISTED REMARK 500 ON CISPEP RECORDS. TRANS IS DEFINED AS 180 +/- 30 AND REMARK 500 CIS IS DEFINED AS 0 +/- 30 DEGREES. REMARK 500 MODEL OMEGA REMARK 500 SER A 170 PRO A 171 -133.33 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 169 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 ANGLE, 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 PRO A 171 -17.23 REMARK 500 ARG A 185 15.21 REMARK 500 ASP A 260 10.32 REMARK 500 REMARK 500 REMARK: NULL 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 HG A 281 HG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASP A 39 OD2 REMARK 620 2 HIS A 69 NE2 109.2 REMARK 620 3 HIS A 69 O 106.4 116.6 REMARK 620 4 HIS A 69 ND1 76.4 45.9 97.6 REMARK 620 5 CYS A 73 SG 111.8 118.1 93.7 163.6 REMARK 620 N 1 2 3 4 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 HG A 280 HG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 72 ND1 REMARK 620 2 CYS A 73 SG 163.5 REMARK 620 3 CYS A 73 N 93.3 70.8 REMARK 620 4 MET A 225 SD 86.0 108.0 163.7 REMARK 620 5 HOH A 523 O 83.0 104.6 104.5 91.7 REMARK 620 N 1 2 3 4 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CA A 282 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 PRO A 175 O REMARK 620 2 VAL A 177 O 88.6 REMARK 620 3 ASP A 200 OD2 159.8 79.2 REMARK 620 4 ASP A 200 OD1 150.9 114.1 48.9 REMARK 620 5 HOH A 501 O 76.5 142.4 122.6 74.4 REMARK 620 6 HOH A 502 O 89.6 72.8 101.7 80.7 72.8 REMARK 620 7 HOH A 503 O 95.9 143.8 85.0 76.7 72.9 142.8 REMARK 620 8 HOH A 504 O 83.0 72.5 78.1 120.0 137.3 144.6 72.5 REMARK 620 N 1 2 3 4 5 6 7 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HG A 280 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HG A 281 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 282 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1EGQ RELATED DB: PDB REMARK 900 ENHANCEMENT OF ENZYME ACTIVITY THROUGH THREE-PHASE PARTITIONING: REMARK 900 CRYSTAL STRUCTURE OF A MODIFIED SERINE PROTEINASE AT 1.5 A REMARK 900 RESOLUTION. REMARK 900 RELATED ID: 2PRK RELATED DB: PDB REMARK 900 SYNCHROTRON X-RAY DATA COLLECTION AND RESTRAINED LEAST-SQUARES REMARK 900 REFINEMENT OF THE CRYSTAL STRUCTURE OF PROTEINASE K AT 1.5 A REMARK 900 RESOLUTION. REMARK 900 RELATED ID: 1CNM RELATED DB: PDB REMARK 900 ENHANCEMENT OF CATALYTIC EFFICIENCY OF ENZYMES THROUGH EXPOSURE TO REMARK 900 ANHYDROUS ORGANIC SOLVENT AT 70 DEGREES CELSIUS : THREE-DIMENSIONAL REMARK 900 STRUCTURE OF A TREATED SERINE PROTEINASE AT 2.2A RESOLUTION DBREF 1HT3 A 1 279 UNP P06873 PRTK_TRIAL 106 384 SEQADV 1HT3 VAL A 85 UNP P06873 ALA 190 CONFLICT SEQRES 1 A 279 ALA ALA GLN THR ASN ALA PRO TRP GLY LEU ALA ARG ILE SEQRES 2 A 279 SER SER THR SER PRO GLY THR SER THR TYR TYR TYR ASP SEQRES 3 A 279 GLU SER ALA GLY GLN GLY SER CYS VAL TYR VAL ILE ASP SEQRES 4 A 279 THR GLY ILE GLU ALA SER HIS PRO GLU PHE GLU GLY ARG SEQRES 5 A 279 ALA GLN MET VAL LYS THR TYR TYR TYR SER SER ARG ASP SEQRES 6 A 279 GLY ASN GLY HIS GLY THR HIS CYS ALA GLY THR VAL GLY SEQRES 7 A 279 SER ARG THR TYR GLY VAL VAL LYS LYS THR GLN LEU PHE SEQRES 8 A 279 GLY VAL LYS VAL LEU ASP ASP ASN GLY SER GLY GLN TYR SEQRES 9 A 279 SER THR ILE ILE ALA GLY MET ASP PHE VAL ALA SER ASP SEQRES 10 A 279 LYS ASN ASN ARG ASN CYS PRO LYS GLY VAL VAL ALA SER SEQRES 11 A 279 LEU SER LEU GLY GLY GLY TYR SER SER SER VAL ASN SER SEQRES 12 A 279 ALA ALA ALA ARG LEU GLN SER SER GLY VAL MET VAL ALA SEQRES 13 A 279 VAL ALA ALA GLY ASN ASN ASN ALA ASP ALA ARG ASN TYR SEQRES 14 A 279 SER PRO ALA SER GLU PRO SER VAL CYS THR VAL GLY ALA SEQRES 15 A 279 SER ASP ARG TYR ASP ARG ARG SER SER PHE SER ASN TYR SEQRES 16 A 279 GLY SER VAL LEU ASP ILE PHE GLY PRO GLY THR SER ILE SEQRES 17 A 279 LEU SER THR TRP ILE GLY GLY SER THR ARG SER ILE SER SEQRES 18 A 279 GLY THR SER MET ALA THR PRO HIS VAL ALA GLY LEU ALA SEQRES 19 A 279 ALA TYR LEU MET THR LEU GLY LYS THR THR ALA ALA SER SEQRES 20 A 279 ALA CYS ARG TYR ILE ALA ASP THR ALA ASN LYS GLY ASP SEQRES 21 A 279 LEU SER ASN ILE PRO PHE GLY THR VAL ASN LEU LEU ALA SEQRES 22 A 279 TYR ASN ASN TYR GLN ALA HET HG A 280 1 HET HG A 281 1 HET CA A 282 1 HETNAM HG MERCURY (II) ION HETNAM CA CALCIUM ION FORMUL 2 HG 2(HG 2+) FORMUL 4 CA CA 2+ FORMUL 5 HOH *244(H2 O) HELIX 1 1 PRO A 7 ILE A 13 1 7 HELIX 2 2 HIS A 46 GLU A 50 5 5 HELIX 3 3 GLY A 68 SER A 79 1 12 HELIX 4 4 GLN A 103 LYS A 118 1 16 HELIX 5 5 ASN A 119 ARG A 121 5 3 HELIX 6 6 SER A 138 SER A 151 1 14 HELIX 7 7 GLY A 222 LEU A 240 1 19 HELIX 8 8 SER A 247 THR A 255 1 9 SHEET 1 A 2 ALA A 2 GLN A 3 0 SHEET 2 A 2 TYR A 23 TYR A 24 -1 N TYR A 23 O GLN A 3 SHEET 1 B 7 ALA A 53 THR A 58 0 SHEET 2 B 7 GLN A 89 LYS A 94 1 O LEU A 90 N GLN A 54 SHEET 3 B 7 SER A 33 ASP A 39 1 O SER A 33 N GLN A 89 SHEET 4 B 7 GLY A 126 LEU A 131 1 O GLY A 126 N CYS A 34 SHEET 5 B 7 MET A 154 ALA A 158 1 O MET A 154 N ALA A 129 SHEET 6 B 7 CYS A 178 SER A 183 1 O CYS A 178 N VAL A 157 SHEET 7 B 7 ILE A 201 PRO A 204 1 O ILE A 201 N GLY A 181 SHEET 1 C 2 GLY A 135 GLY A 136 0 SHEET 2 C 2 TYR A 169 SER A 170 -1 N SER A 170 O GLY A 135 SHEET 1 D 2 ILE A 208 TRP A 212 0 SHEET 2 D 2 SER A 216 ILE A 220 -1 O SER A 216 N TRP A 212 SHEET 1 E 2 ASN A 257 LYS A 258 0 SHEET 2 E 2 LEU A 271 LEU A 272 -1 O LEU A 272 N ASN A 257 SSBOND 1 CYS A 34 CYS A 123 1555 1555 2.03 SSBOND 2 CYS A 178 CYS A 249 1555 1555 2.01 LINK OD2 ASP A 39 HG HG A 281 1555 1555 2.78 LINK NE2 HIS A 69 HG HG A 281 1555 1555 2.92 LINK O HIS A 69 HG HG A 281 1555 1555 2.78 LINK ND1 HIS A 69 HG HG A 281 1555 1555 2.46 LINK ND1 HIS A 72 HG HG A 280 1555 1555 2.34 LINK SG CYS A 73 HG HG A 280 1555 1555 2.60 LINK N CYS A 73 HG HG A 280 1555 1555 3.15 LINK SG CYS A 73 HG HG A 281 1555 1555 2.46 LINK O PRO A 175 CA CA A 282 1555 1555 2.35 LINK O VAL A 177 CA CA A 282 1555 1555 2.44 LINK OD2 ASP A 200 CA CA A 282 1555 1555 2.54 LINK OD1 ASP A 200 CA CA A 282 1555 1555 2.76 LINK SD MET A 225 HG HG A 280 1555 1555 3.06 LINK HG HG A 280 O HOH A 523 1555 1555 2.62 LINK CA CA A 282 O HOH A 501 1555 1555 2.63 LINK CA CA A 282 O HOH A 502 1555 1555 2.51 LINK CA CA A 282 O HOH A 503 1555 1555 2.67 LINK CA CA A 282 O HOH A 504 1555 1555 2.55 SITE 1 AC1 4 HIS A 72 CYS A 73 MET A 225 HOH A 523 SITE 1 AC2 3 ASP A 39 HIS A 69 CYS A 73 SITE 1 AC3 7 PRO A 175 VAL A 177 ASP A 200 HOH A 501 SITE 2 AC3 7 HOH A 502 HOH A 503 HOH A 504 CRYST1 68.360 68.360 108.700 90.00 90.00 90.00 P 43 21 2 8 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 0.014628 0.000000 0.000000 0.00000 SCALE2 0.000000 0.014628 0.000000 0.00000 SCALE3 0.000000 0.000000 0.009200 0.00000