PDB Short entry for 1EC5 HEADER DE NOVO PROTEIN 25-JAN-00 1EC5 TITLE CRYSTAL STRUCTURE OF FOUR-HELIX BUNDLE MODEL COMPND MOL_ID: 1; COMPND 2 MOLECULE: PROTEIN (FOUR-HELIX BUNDLE MODEL); COMPND 3 CHAIN: A, B, C; COMPND 4 ENGINEERED: YES; COMPND 5 OTHER_DETAILS: CHEMICALLY SYNTHESIZED SOURCE MOL_ID: 1; SOURCE 2 SYNTHETIC: YES; SOURCE 3 OTHER_DETAILS: DE NOVO PROTEIN DESIGN KEYWDS ALPHA-HELICAL BUNDLE, PROTEIN DESIGN, DE NOVO PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR S.GEREMIA REVDAT 4 31-JAN-18 1EC5 1 REMARK REVDAT 3 24-FEB-09 1EC5 1 VERSN REVDAT 2 01-APR-03 1EC5 1 JRNL REVDAT 1 26-JUL-00 1EC5 0 JRNL AUTH A.LOMBARDI,C.M.SUMMA,S.GEREMIA,L.RANDACCIO,V.PAVONE, JRNL AUTH 2 W.F.DEGRADO JRNL TITL INAUGURAL ARTICLE: RETROSTRUCTURAL ANALYSIS OF JRNL TITL 2 METALLOPROTEINS: APPLICATION TO THE DESIGN OF A MINIMAL JRNL TITL 3 MODEL FOR DIIRON PROTEINS. JRNL REF PROC.NATL.ACAD.SCI.USA V. 97 6298 2000 JRNL REFN ISSN 0027-8424 JRNL PMID 10841536 JRNL DOI 10.1073/PNAS.97.12.6298 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH C.M.SUMMA,A.LOMBARDI,M.LEWIS,W.F.DEGRADO REMARK 1 TITL TERTIARY TEMPLATES FOR THE DESIGN OF DIIRON PROTEIN REMARK 1 REF CURR.OPIN.STRUCT.BIOL. V. 9 500 1999 REMARK 1 REFN ISSN 0959-440X REMARK 1 DOI 10.1016/S0959-440X(99)80071-2 REMARK 1 REFERENCE 2 REMARK 1 AUTH W.F.DEGRADO,C.M.SUMMA,V.PAVONE,F.NASTRI,A.LOMBARDI REMARK 1 TITL DE NOVO DESIGN AND STRUCTURAL CHARACTERIZATION OF PROTEINS REMARK 1 TITL 2 AND METALLOPROTEINS REMARK 1 REF ANNU.REV.BIOCHEM. V. 68 779 1999 REMARK 1 REFN ISSN 0066-4154 REMARK 1 DOI 10.1146/ANNUREV.BIOCHEM.68.1.779 REMARK 2 REMARK 2 RESOLUTION. 2.50 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC REMARK 3 AUTHORS : MURSHUDOV,VAGIN,DODSON REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.50 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 15.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 95.5 REMARK 3 NUMBER OF REFLECTIONS : 4474 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 + TEST SET) : NULL REMARK 3 R VALUE (WORKING SET) : 0.237 REMARK 3 FREE R VALUE : 0.304 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.000 REMARK 3 FREE R VALUE TEST SET COUNT : 204 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1248 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 3 REMARK 3 SOLVENT ATOMS : 32 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 47.00 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 41.40 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 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) : 0.009 ; 0.020 REMARK 3 ANGLE DISTANCE (A) : 0.036 ; 0.040 REMARK 3 INTRAPLANAR 1-4 DISTANCE (A) : 0.036 ; 0.050 REMARK 3 H-BOND OR METAL COORDINATION (A) : 0.114 ; 0.050 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) : 0.215 ; 0.300 REMARK 3 MULTIPLE TORSION (A) : 0.298 ; 0.300 REMARK 3 H-BOND (X...Y) (A) : 0.231 ; 0.300 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) : 3.700 ; 7.000 REMARK 3 STAGGERED (DEGREES) : 29.600; 15.000 REMARK 3 TRANSVERSE (DEGREES) : 54.800; 20.000 REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. RMS SIGMA REMARK 3 MAIN-CHAIN BOND (A**2) : 1.086 ; 2.000 REMARK 3 MAIN-CHAIN ANGLE (A**2) : 1.840 ; 3.000 REMARK 3 SIDE-CHAIN BOND (A**2) : 1.289 ; 2.000 REMARK 3 SIDE-CHAIN ANGLE (A**2) : 1.871 ; 3.000 REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1EC5 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 09-FEB-00. REMARK 100 THE DEPOSITION ID IS D_1000010448. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 09-FEB-99 REMARK 200 TEMPERATURE (KELVIN) : 100.0 REMARK 200 PH : 4.6 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : ELETTRA REMARK 200 BEAMLINE : 5.2R REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.973 REMARK 200 MONOCHROMATOR : SI(111) REMARK 200 OPTICS : MIRROR REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : MARRESEARCH REMARK 200 INTENSITY-INTEGRATION SOFTWARE : MOSFLM REMARK 200 DATA SCALING SOFTWARE : CCP4 (SCALA) REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 23396 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.500 REMARK 200 RESOLUTION RANGE LOW (A) : 17.400 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 4.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 96.2 REMARK 200 DATA REDUNDANCY : 5.200 REMARK 200 R MERGE (I) : 0.10700 REMARK 200 R SYM (I) : 10.7000 REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 11.7000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.50 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.64 REMARK 200 COMPLETENESS FOR SHELL (%) : 96.7 REMARK 200 DATA REDUNDANCY IN SHELL : 5.20 REMARK 200 R MERGE FOR SHELL (I) : 0.48000 REMARK 200 R SYM FOR SHELL (I) : 48.0000 REMARK 200 <I/SIGMA(I)> FOR SHELL : 2.700 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: THEORETICAL MODEL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 32.00 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 1.82 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: CRYSTALS WERE GROWN FROM AN AMMONIUM REMARK 280 SULFATE 2M SOLUTION, PH 4.6, VAPOR DIFFUSION, HANGING DROP, REMARK 280 TEMPERATURE 277.0K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: C 2 2 21 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 -X,Y,-Z+1/2 REMARK 290 4555 X,-Y,-Z REMARK 290 5555 X+1/2,Y+1/2,Z REMARK 290 6555 -X+1/2,-Y+1/2,Z+1/2 REMARK 290 7555 -X+1/2,Y+1/2,-Z+1/2 REMARK 290 8555 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 0.00000 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 39.94500 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 39.94500 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 0.00000 REMARK 290 SMTRY1 5 1.000000 0.000000 0.000000 18.03500 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 44.58000 REMARK 290 SMTRY3 5 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 6 -1.000000 0.000000 0.000000 18.03500 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 44.58000 REMARK 290 SMTRY3 6 0.000000 0.000000 1.000000 39.94500 REMARK 290 SMTRY1 7 -1.000000 0.000000 0.000000 18.03500 REMARK 290 SMTRY2 7 0.000000 1.000000 0.000000 44.58000 REMARK 290 SMTRY3 7 0.000000 0.000000 -1.000000 39.94500 REMARK 290 SMTRY1 8 1.000000 0.000000 0.000000 18.03500 REMARK 290 SMTRY2 8 0.000000 -1.000000 0.000000 44.58000 REMARK 290 SMTRY3 8 0.000000 0.000000 -1.000000 0.00000 REMARK 290 REMARK 290 REMARK: NULL REMARK 300 REMARK 300 BIOMOLECULE: 1, 2 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 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 350 BIOMT1 2 -1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT2 2 0.000000 1.000000 0.000000 0.00000 REMARK 350 BIOMT3 2 0.000000 0.000000 -1.000000 39.94500 REMARK 350 REMARK 350 BIOMOLECULE: 2 REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: DIMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 2660 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 5980 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -99.0 KCAL/MOL REMARK 350 APPLY THE FOLLOWING TO CHAINS: B, C 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 375 REMARK 375 SPECIAL POSITION REMARK 375 THE FOLLOWING ATOMS ARE FOUND TO BE WITHIN 0.15 ANGSTROMS REMARK 375 OF A SYMMETRY RELATED ATOM AND ARE ASSUMED TO BE ON SPECIAL REMARK 375 POSITIONS. REMARK 375 REMARK 375 ATOM RES CSSEQI REMARK 375 HOH A 59 LIES ON A SPECIAL POSITION. 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 ASP A 1 CB - CG - OD2 ANGL. DEV. = 9.6 DEGREES REMARK 500 ARG A 4 CD - NE - CZ ANGL. DEV. = 11.1 DEGREES REMARK 500 ARG A 4 NE - CZ - NH1 ANGL. DEV. = 4.4 DEGREES REMARK 500 ARG A 4 NE - CZ - NH2 ANGL. DEV. = -3.4 DEGREES REMARK 500 GLU A 10 OE1 - CD - OE2 ANGL. DEV. = -9.3 DEGREES REMARK 500 TYR A 17 CB - CG - CD2 ANGL. DEV. = -4.5 DEGREES REMARK 500 GLU B 10 OE1 - CD - OE2 ANGL. DEV. = -10.3 DEGREES REMARK 500 ARG B 18 CD - NE - CZ ANGL. DEV. = 8.5 DEGREES REMARK 500 ARG B 18 NE - CZ - NH1 ANGL. DEV. = 4.4 DEGREES REMARK 500 GLU B 37 OE1 - CD - OE2 ANGL. DEV. = -7.2 DEGREES REMARK 500 ARG C 4 NH1 - CZ - NH2 ANGL. DEV. = -9.1 DEGREES REMARK 500 ARG C 4 NE - CZ - NH1 ANGL. DEV. = 10.1 DEGREES REMARK 500 GLU C 10 OE1 - CD - OE2 ANGL. DEV. = -9.2 DEGREES REMARK 500 GLU C 41 OE1 - CD - OE2 ANGL. DEV. = -8.2 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 TYR A 23 -85.48 -75.86 REMARK 500 LYS A 25 54.60 76.51 REMARK 500 VAL B 24 -72.44 -94.84 REMARK 500 LYS B 25 54.53 87.48 REMARK 500 LEU B 47 -135.99 -85.31 REMARK 500 TYR C 23 -74.14 -80.90 REMARK 500 LYS C 25 97.71 76.40 REMARK 500 PRO C 27 -31.88 -39.77 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 ZN A 50 ZN REMARK 620 N RES CSSEQI ATOM REMARK 620 1 GLU A 10 OE1 REMARK 620 2 GLU A 10 OE2 65.7 REMARK 620 3 GLU A 36 OE1 75.1 133.2 REMARK 620 4 HIS A 39 ND1 138.2 85.8 109.4 REMARK 620 5 GLU A 36 OE2 88.9 90.6 113.8 122.8 REMARK 620 N 1 2 3 4 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 ZN B 50 ZN REMARK 620 N RES CSSEQI ATOM REMARK 620 1 GLU B 10 OE1 REMARK 620 2 GLU B 10 OE2 60.2 REMARK 620 3 GLU B 36 OE1 85.8 140.3 REMARK 620 4 HIS B 39 ND1 130.6 95.8 91.4 REMARK 620 5 GLU C 36 OE2 132.3 100.9 117.9 92.0 REMARK 620 N 1 2 3 4 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 ZN C 50 ZN REMARK 620 N RES CSSEQI ATOM REMARK 620 1 GLU C 10 OE1 REMARK 620 2 GLU C 10 OE2 61.5 REMARK 620 3 GLU C 36 OE1 74.9 134.0 REMARK 620 4 HIS C 39 ND1 133.1 104.0 94.7 REMARK 620 5 GLU B 36 OE2 123.5 87.9 131.0 98.1 REMARK 620 N 1 2 3 4 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ZN A 50 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ZN B 50 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ZN C 50 DBREF 1EC5 A 0 49 PDB 1EC5 1EC5 0 49 DBREF 1EC5 B 0 49 PDB 1EC5 1EC5 0 49 DBREF 1EC5 C 0 49 PDB 1EC5 1EC5 0 49 SEQRES 1 A 50 ACE ASP TYR LEU ARG GLU LEU LEU LYS LEU GLU LEU GLN SEQRES 2 A 50 LEU ILE LYS GLN TYR ARG GLU ALA LEU GLU TYR VAL LYS SEQRES 3 A 50 LEU PRO VAL LEU ALA LYS ILE LEU GLU ASP GLU GLU LYS SEQRES 4 A 50 HIS ILE GLU TRP LEU GLU THR ILE LEU GLY NH2 SEQRES 1 B 50 ACE ASP TYR LEU ARG GLU LEU LEU LYS LEU GLU LEU GLN SEQRES 2 B 50 LEU ILE LYS GLN TYR ARG GLU ALA LEU GLU TYR VAL LYS SEQRES 3 B 50 LEU PRO VAL LEU ALA LYS ILE LEU GLU ASP GLU GLU LYS SEQRES 4 B 50 HIS ILE GLU TRP LEU GLU THR ILE LEU GLY NH2 SEQRES 1 C 50 ACE ASP TYR LEU ARG GLU LEU LEU LYS LEU GLU LEU GLN SEQRES 2 C 50 LEU ILE LYS GLN TYR ARG GLU ALA LEU GLU TYR VAL LYS SEQRES 3 C 50 LEU PRO VAL LEU ALA LYS ILE LEU GLU ASP GLU GLU LYS SEQRES 4 C 50 HIS ILE GLU TRP LEU GLU THR ILE LEU GLY NH2 HET ACE A 0 3 HET NH2 A 49 1 HET ACE B 0 3 HET NH2 B 49 1 HET ACE C 0 3 HET NH2 C 49 1 HET ZN A 50 1 HET ZN B 50 1 HET ZN C 50 1 HETNAM ACE ACETYL GROUP HETNAM NH2 AMINO GROUP HETNAM ZN ZINC ION FORMUL 1 ACE 3(C2 H4 O) FORMUL 1 NH2 3(H2 N) FORMUL 4 ZN 3(ZN 2+) FORMUL 7 HOH *32(H2 O) HELIX 1 1 ASP A 1 VAL A 24 1 24 HELIX 2 2 LEU A 26 LEU A 47 1 22 HELIX 3 3 ASP B 1 VAL B 24 1 24 HELIX 4 4 LEU B 26 LEU B 47 1 22 HELIX 5 5 LEU C 3 VAL C 24 1 22 HELIX 6 6 VAL C 28 GLY C 48 1 21 LINK C ACE A 0 N ASP A 1 1555 1555 1.33 LINK C ACE B 0 N ASP B 1 1555 1555 1.35 LINK C ACE C 0 N ASP C 1 1555 1555 1.33 LINK N NH2 A 49 C GLY A 48 1555 1555 1.33 LINK N NH2 B 49 C GLY B 48 1555 1555 1.33 LINK N NH2 C 49 C GLY C 48 1555 1555 1.33 LINK ZN ZN A 50 OE1 GLU A 10 1555 1555 1.96 LINK ZN ZN A 50 OE2 GLU A 10 1555 1555 1.93 LINK ZN ZN A 50 OE1 GLU A 36 1555 1555 2.14 LINK ZN ZN A 50 ND1 HIS A 39 1555 1555 2.02 LINK ZN ZN B 50 OE1 GLU B 10 1555 1555 1.98 LINK ZN ZN B 50 OE2 GLU B 10 1555 1555 2.19 LINK ZN ZN B 50 OE1 GLU B 36 1555 1555 2.12 LINK ZN ZN B 50 ND1 HIS B 39 1555 1555 2.12 LINK ZN ZN B 50 OE2 GLU C 36 1555 1555 2.10 LINK ZN ZN C 50 OE1 GLU C 10 1555 1555 2.13 LINK ZN ZN C 50 OE2 GLU C 10 1555 1555 2.05 LINK ZN ZN C 50 OE1 GLU C 36 1555 1555 1.80 LINK ZN ZN C 50 ND1 HIS C 39 1555 1555 1.93 LINK ZN ZN C 50 OE2 GLU B 36 1555 1555 2.09 LINK ZN ZN A 50 OE2 GLU A 36 1555 3555 2.23 SITE 1 AC1 3 GLU A 10 GLU A 36 HIS A 39 SITE 1 AC2 4 GLU B 10 GLU B 36 HIS B 39 GLU C 36 SITE 1 AC3 4 GLU B 36 GLU C 10 GLU C 36 HIS C 39 CRYST1 36.070 89.160 79.890 90.00 90.00 90.00 C 2 2 21 24 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 0.027720 0.000000 0.000000 0.00000 SCALE2 0.000000 0.011220 0.000000 0.00000 SCALE3 0.000000 0.000000 0.012520 0.00000 HETATM 1 C ACE A 0 0.102 25.689 36.473 1.00 52.79 C HETATM 2 O ACE A 0 0.146 25.094 37.557 1.00 51.96 O HETATM 3 CH3 ACE A 0 -1.016 25.554 35.498 1.00 53.97 C