HEADER DE NOVO PROTEIN 28-OCT-15 5EHB TITLE A DE NOVO DESIGNED HEXAMERIC COILED-COIL PEPTIDE WITH IODOTYROSINE COMPND MOL_ID: 1; COMPND 2 MOLECULE: PHIOSYI; COMPND 3 CHAIN: A, B; COMPND 4 ENGINEERED: YES; COMPND 5 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 SYNTHETIC: YES; SOURCE 3 ORGANISM_SCIENTIFIC: SYNTHETIC CONSTRUCT; SOURCE 4 ORGANISM_TAXID: 32630; SOURCE 5 OTHER_DETAILS: DESIGNED SEQUENCE KEYWDS COILED-COIL, PEPTIDE DESIGN, DE NOVO PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR R.LIZATOVIC,O.AURELIUS,O.STENSTROM,T.DRAKENBERG,M.AKKE,D.T.LOGAN, AUTHOR 2 I.ANDRE REVDAT 2 17-JAN-18 5EHB 1 REMARK REVDAT 1 15-JUN-16 5EHB 0 JRNL AUTH R.LIZATOVIC,O.AURELIUS,O.STENSTROM,T.DRAKENBERG,M.AKKE, JRNL AUTH 2 D.T.LOGAN,I.ANDRE JRNL TITL A DE NOVO DESIGNED COILED-COIL PEPTIDE WITH A REVERSIBLE JRNL TITL 2 PH-INDUCED OLIGOMERIZATION SWITCH. JRNL REF STRUCTURE V. 24 946 2016 JRNL REFN ISSN 0969-2126 JRNL PMID 27161978 JRNL DOI 10.1016/J.STR.2016.03.027 REMARK 2 REMARK 2 RESOLUTION. 3.19 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC 5.8.0135 REMARK 3 AUTHORS : MURSHUDOV,VAGIN,DODSON REMARK 3 REMARK 3 REFINEMENT TARGET : MAXIMUM LIKELIHOOD REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 3.19 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 27.35 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 93.0 REMARK 3 NUMBER OF REFLECTIONS : 1131 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) : 0.336 REMARK 3 R VALUE (WORKING SET) : 0.326 REMARK 3 FREE R VALUE : 0.434 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 10.900 REMARK 3 FREE R VALUE TEST SET COUNT : 139 REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : 20 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 3.19 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 3.27 REMARK 3 REFLECTION IN BIN (WORKING SET) : 62 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 79.38 REMARK 3 BIN R VALUE (WORKING SET) : 0.2660 REMARK 3 BIN FREE R VALUE SET COUNT : 15 REMARK 3 BIN FREE R VALUE : 0.5510 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 464 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 0 REMARK 3 SOLVENT ATOMS : 0 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 120.6 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : -3.78000 REMARK 3 B22 (A**2) : -3.78000 REMARK 3 B33 (A**2) : 12.27000 REMARK 3 B12 (A**2) : -1.89000 REMARK 3 B13 (A**2) : 0.00000 REMARK 3 B23 (A**2) : 0.00000 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): 0.951 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.835 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 59.117 REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : 0.947 REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : 0.854 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES COUNT RMS WEIGHT REMARK 3 BOND LENGTHS REFINED ATOMS (A): 476 ; 0.012 ; 0.020 REMARK 3 BOND LENGTHS OTHERS (A): 477 ; 0.004 ; 0.020 REMARK 3 BOND ANGLES REFINED ATOMS (DEGREES): 639 ; 1.530 ; 2.090 REMARK 3 BOND ANGLES OTHERS (DEGREES): 1106 ; 1.126 ; 3.000 REMARK 3 TORSION ANGLES, PERIOD 1 (DEGREES): 54 ; 7.112 ; 5.000 REMARK 3 TORSION ANGLES, PERIOD 2 (DEGREES): 22 ;44.560 ;27.273 REMARK 3 TORSION ANGLES, PERIOD 3 (DEGREES): 98 ;20.437 ;15.000 REMARK 3 TORSION ANGLES, PERIOD 4 (DEGREES): 2 ;15.060 ;15.000 REMARK 3 CHIRAL-CENTER RESTRAINTS (A**3): 75 ; 0.087 ; 0.200 REMARK 3 GENERAL PLANES REFINED ATOMS (A): 505 ; 0.006 ; 0.020 REMARK 3 GENERAL PLANES OTHERS (A): 85 ; 0.002 ; 0.020 REMARK 3 NON-BONDED CONTACTS REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED CONTACTS OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED TORSION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED TORSION OTHERS (A): NULL ; NULL ; NULL REMARK 3 H-BOND (X...Y) REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 H-BOND (X...Y) OTHERS (A): NULL ; NULL ; NULL REMARK 3 POTENTIAL METAL-ION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 POTENTIAL METAL-ION OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY VDW REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY VDW OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY H-BOND REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY H-BOND OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY METAL-ION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY METAL-ION OTHERS (A): NULL ; NULL ; NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. COUNT RMS WEIGHT REMARK 3 MAIN-CHAIN BOND REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN BOND REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 LONG RANGE B REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 LONG RANGE B OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 REMARK 3 ANISOTROPIC THERMAL FACTOR RESTRAINTS. COUNT RMS WEIGHT REMARK 3 RIGID-BOND RESTRAINTS (A**2): NULL ; NULL ; NULL REMARK 3 SPHERICITY; FREE ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SPHERICITY; BONDED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 REMARK 3 NCS RESTRAINTS STATISTICS REMARK 3 NCS TYPE: LOCAL REMARK 3 NUMBER OF DIFFERENT NCS PAIRS : 1 REMARK 3 GROUP CHAIN1 RANGE CHAIN2 RANGE COUNT RMS WEIGHT REMARK 3 1 A 1 28 B 1 28 2996 0.090 0.050 REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : NULL REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : MASK REMARK 3 PARAMETERS FOR MASK CALCULATION REMARK 3 VDW PROBE RADIUS : 1.20 REMARK 3 ION PROBE RADIUS : 0.80 REMARK 3 SHRINKAGE RADIUS : 0.80 REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: HYDROGENS HAVE BEEN ADDED IN THE RIDING REMARK 3 POSITIONS U VALUES : REFINED INDIVIDUALLY REMARK 4 REMARK 4 5EHB COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 28-OCT-15. REMARK 100 THE DEPOSITION ID IS D_1000214645. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 25-JAN-13 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 : MAX II REMARK 200 BEAMLINE : I911-3 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.800 REMARK 200 MONOCHROMATOR : DOUBLE-CRYSTAL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : MARMOSAIC 225 MM CCD REMARK 200 INTENSITY-INTEGRATION SOFTWARE : XDS REMARK 200 DATA SCALING SOFTWARE : XDS REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 2301 REMARK 200 RESOLUTION RANGE HIGH (A) : 3.190 REMARK 200 RESOLUTION RANGE LOW (A) : 27.400 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 95.6 REMARK 200 DATA REDUNDANCY : 10.80 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.05000 REMARK 200 FOR THE DATA SET : 24.2000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 3.20 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 3.40 REMARK 200 COMPLETENESS FOR SHELL (%) : 99.0 REMARK 200 DATA REDUNDANCY IN SHELL : 7.40 REMARK 200 R MERGE FOR SHELL (I) : 0.66000 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 2.600 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: AB INITIO PHASING REMARK 200 SOFTWARE USED: AUTOSOL 1.9_1692 REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 54.35 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.69 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 2 UL 10 MG/ML PHIOSYI MIXED WITH A 2 REMARK 280 UL SOLUTION OF THE BELOW COMPONENTS 0.1 M NA HEPES PH 7.5 0.2 M REMARK 280 MGCL2 10% (V/V) PEG400 AL'S OIL WAS USED TO SEPARATE THE REMARK 280 EXTERNAL RESERVOIR, WHICH CONSISTED OF 15% (V/V) 2-PROPANOL., REMARK 280 MICROBATCH, TEMPERATURE 293K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: H 3 2 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -Y,X-Y,Z REMARK 290 3555 -X+Y,-X,Z REMARK 290 4555 Y,X,-Z REMARK 290 5555 X-Y,-Y,-Z REMARK 290 6555 -X,-X+Y,-Z REMARK 290 7555 X+2/3,Y+1/3,Z+1/3 REMARK 290 8555 -Y+2/3,X-Y+1/3,Z+1/3 REMARK 290 9555 -X+Y+2/3,-X+1/3,Z+1/3 REMARK 290 10555 Y+2/3,X+1/3,-Z+1/3 REMARK 290 11555 X-Y+2/3,-Y+1/3,-Z+1/3 REMARK 290 12555 -X+2/3,-X+Y+1/3,-Z+1/3 REMARK 290 13555 X+1/3,Y+2/3,Z+2/3 REMARK 290 14555 -Y+1/3,X-Y+2/3,Z+2/3 REMARK 290 15555 -X+Y+1/3,-X+2/3,Z+2/3 REMARK 290 16555 Y+1/3,X+2/3,-Z+2/3 REMARK 290 17555 X-Y+1/3,-Y+2/3,-Z+2/3 REMARK 290 18555 -X+1/3,-X+Y+2/3,-Z+2/3 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 0.00000 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 0.00000 REMARK 290 SMTRY1 4 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 4 0.866025 0.500000 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 0.00000 REMARK 290 SMTRY2 5 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 5 0.000000 0.000000 -1.000000 0.00000 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 0.00000 REMARK 290 SMTRY1 7 1.000000 0.000000 0.000000 26.53400 REMARK 290 SMTRY2 7 0.000000 1.000000 0.000000 15.31941 REMARK 290 SMTRY3 7 0.000000 0.000000 1.000000 45.37133 REMARK 290 SMTRY1 8 -0.500000 -0.866025 0.000000 26.53400 REMARK 290 SMTRY2 8 0.866025 -0.500000 0.000000 15.31941 REMARK 290 SMTRY3 8 0.000000 0.000000 1.000000 45.37133 REMARK 290 SMTRY1 9 -0.500000 0.866025 0.000000 26.53400 REMARK 290 SMTRY2 9 -0.866025 -0.500000 0.000000 15.31941 REMARK 290 SMTRY3 9 0.000000 0.000000 1.000000 45.37133 REMARK 290 SMTRY1 10 -0.500000 0.866025 0.000000 26.53400 REMARK 290 SMTRY2 10 0.866025 0.500000 0.000000 15.31941 REMARK 290 SMTRY3 10 0.000000 0.000000 -1.000000 45.37133 REMARK 290 SMTRY1 11 1.000000 0.000000 0.000000 26.53400 REMARK 290 SMTRY2 11 0.000000 -1.000000 0.000000 15.31941 REMARK 290 SMTRY3 11 0.000000 0.000000 -1.000000 45.37133 REMARK 290 SMTRY1 12 -0.500000 -0.866025 0.000000 26.53400 REMARK 290 SMTRY2 12 -0.866025 0.500000 0.000000 15.31941 REMARK 290 SMTRY3 12 0.000000 0.000000 -1.000000 45.37133 REMARK 290 SMTRY1 13 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 13 0.000000 1.000000 0.000000 30.63882 REMARK 290 SMTRY3 13 0.000000 0.000000 1.000000 90.74267 REMARK 290 SMTRY1 14 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 14 0.866025 -0.500000 0.000000 30.63882 REMARK 290 SMTRY3 14 0.000000 0.000000 1.000000 90.74267 REMARK 290 SMTRY1 15 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 15 -0.866025 -0.500000 0.000000 30.63882 REMARK 290 SMTRY3 15 0.000000 0.000000 1.000000 90.74267 REMARK 290 SMTRY1 16 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 16 0.866025 0.500000 0.000000 30.63882 REMARK 290 SMTRY3 16 0.000000 0.000000 -1.000000 90.74267 REMARK 290 SMTRY1 17 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 17 0.000000 -1.000000 0.000000 30.63882 REMARK 290 SMTRY3 17 0.000000 0.000000 -1.000000 90.74267 REMARK 290 SMTRY1 18 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 18 -0.866025 0.500000 0.000000 30.63882 REMARK 290 SMTRY3 18 0.000000 0.000000 -1.000000 90.74267 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 300 THE ASSEMBLY REPRESENTED IN THIS ENTRY HAS REGULAR REMARK 300 CYCLIC POINT SYMMETRY (SCHOENFLIES SYMBOL = C3). 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: HEXAMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: HEXAMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 8220 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 9810 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -81.0 KCAL/MOL 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 350 BIOMT1 2 -0.500000 -0.866025 0.000000 26.53400 REMARK 350 BIOMT2 2 0.866025 -0.500000 0.000000 45.95824 REMARK 350 BIOMT3 2 0.000000 0.000000 1.000000 0.00000 REMARK 350 BIOMT1 3 -0.500000 0.866025 0.000000 -26.53400 REMARK 350 BIOMT2 3 -0.866025 -0.500000 0.000000 45.95824 REMARK 350 BIOMT3 3 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 ALA A 29 REMARK 465 GLU A 30 REMARK 465 LYS A 31 REMARK 465 THR A 32 REMARK 465 ALA B 29 REMARK 465 GLU B 30 REMARK 465 LYS B 31 REMARK 465 THR B 32 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 NZ LYS A 3 OF IYR A 5 2665 2.07 REMARK 500 REMARK 500 REMARK: NULL DBREF 5EHB A 1 32 PDB 5EHB 5EHB 1 32 DBREF 5EHB B 1 32 PDB 5EHB 5EHB 1 32 SEQRES 1 A 32 THR ASP LYS ILE IYR ASP ALA LEU GLU LYS LEU ALA GLU SEQRES 2 A 32 ILE GLN LYS GLU ILE ALA GLU PHE LEU ARG GLU LEU ILE SEQRES 3 A 32 GLU ALA ALA GLU LYS THR SEQRES 1 B 32 THR ASP LYS ILE IYR ASP ALA LEU GLU LYS LEU ALA GLU SEQRES 2 B 32 ILE GLN LYS GLU ILE ALA GLU PHE LEU ARG GLU LEU ILE SEQRES 3 B 32 GLU ALA ALA GLU LYS THR HET IYR A 5 13 HET IYR B 5 22 HETNAM IYR 3-IODO-TYROSINE FORMUL 1 IYR 2(C9 H10 I N O3) HELIX 1 AA1 THR A 1 GLU A 27 1 27 HELIX 2 AA2 ASP B 2 GLU B 27 1 26 LINK C ILE A 4 N IYR A 5 1555 1555 1.33 LINK C IYR A 5 N ASP A 6 1555 1555 1.33 LINK C ILE B 4 N IYR B 5 1555 1555 1.34 LINK C IYR B 5 N ASP B 6 1555 1555 1.33 CRYST1 53.068 53.068 136.114 90.00 90.00 120.00 H 3 2 36 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 0.018844 0.010879 0.000000 0.00000 SCALE2 0.000000 0.021759 0.000000 0.00000 SCALE3 0.000000 0.000000 0.007347 0.00000