HEADER TRANSPORT PROTEIN 20-AUG-14 4R50 TITLE CRYSTAL STRUCTURE OF CNG MIMICKING NAK-ETPP MUTANT COCRYSTALLIZED WITH TITLE 2 LI+ COMPND MOL_ID: 1; COMPND 2 MOLECULE: POTASSIUM CHANNEL PROTEIN; COMPND 3 CHAIN: A, B; COMPND 4 FRAGMENT: RESIDUES 20-110; COMPND 5 ENGINEERED: YES; COMPND 6 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: BACILLUS CEREUS ATCC 14579; SOURCE 3 ORGANISM_TAXID: 226900; SOURCE 4 STRAIN: ATCC 14579 / DSM 31; SOURCE 5 GENE: BC_0669; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 8 EXPRESSION_SYSTEM_CELL_LINE: XL1-BLUE; SOURCE 9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 10 EXPRESSION_SYSTEM_PLASMID: PQE60 KEYWDS ALPHA HELICAL MEMBRANE PROTEIN, CHIMERA CHANNEL, TRANSPORT PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR M.DE MARCH,L.M.R.NAPOLITANO,S.ONESTI REVDAT 4 20-SEP-23 4R50 1 REMARK SEQADV REVDAT 3 31-JAN-18 4R50 1 REMARK REVDAT 2 22-JUL-15 4R50 1 JRNL REVDAT 1 01-JUL-15 4R50 0 JRNL AUTH L.M.NAPOLITANO,I.BISHA,M.DE MARCH,A.MARCHESI,M.ARCANGELETTI, JRNL AUTH 2 N.DEMITRI,M.MAZZOLINI,A.RODRIGUEZ,A.MAGISTRATO,S.ONESTI, JRNL AUTH 3 A.LAIO,V.TORRE JRNL TITL A STRUCTURAL, FUNCTIONAL, AND COMPUTATIONAL ANALYSIS JRNL TITL 2 SUGGESTS PORE FLEXIBILITY AS THE BASE FOR THE POOR JRNL TITL 3 SELECTIVITY OF CNG CHANNELS. JRNL REF PROC.NATL.ACAD.SCI.USA V. 112 E3619 2015 JRNL REFN ISSN 0027-8424 JRNL PMID 26100907 JRNL DOI 10.1073/PNAS.1503334112 REMARK 2 REMARK 2 RESOLUTION. 2.85 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC 5.7.0 REMARK 3 AUTHORS : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER, REMARK 3 : NICHOLLS,WINN,LONG,VAGIN REMARK 3 REMARK 3 REFINEMENT TARGET : MAXIMUM LIKELIHOOD WITH PHASES REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.85 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 33.81 REMARK 3 DATA CUTOFF (SIGMA(F)) : NULL REMARK 3 COMPLETENESS FOR RANGE (%) : 99.9 REMARK 3 NUMBER OF REFLECTIONS : 4212 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) : 0.131 REMARK 3 R VALUE (WORKING SET) : 0.125 REMARK 3 FREE R VALUE : 0.183 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 10.200 REMARK 3 FREE R VALUE TEST SET COUNT : 480 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) : 2.85 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.92 REMARK 3 REFLECTION IN BIN (WORKING SET) : 304 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 99.41 REMARK 3 BIN R VALUE (WORKING SET) : 0.1460 REMARK 3 BIN FREE R VALUE SET COUNT : 35 REMARK 3 BIN FREE R VALUE : 0.2200 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1371 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 38 REMARK 3 SOLVENT ATOMS : 48 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 40.08 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : -0.37000 REMARK 3 B22 (A**2) : -0.37000 REMARK 3 B33 (A**2) : 0.74000 REMARK 3 B12 (A**2) : 0.00000 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): 0.319 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.179 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 17.387 REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : 0.966 REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : 0.940 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES COUNT RMS WEIGHT REMARK 3 BOND LENGTHS REFINED ATOMS (A): 1441 ; 0.013 ; 0.020 REMARK 3 BOND LENGTHS OTHERS (A): 1394 ; 0.004 ; 0.020 REMARK 3 BOND ANGLES REFINED ATOMS (DEGREES): 1969 ; 1.564 ; 1.999 REMARK 3 BOND ANGLES OTHERS (DEGREES): 3187 ; 1.033 ; 3.000 REMARK 3 TORSION ANGLES, PERIOD 1 (DEGREES): 181 ; 5.019 ; 5.000 REMARK 3 TORSION ANGLES, PERIOD 2 (DEGREES): 44 ;33.980 ;22.955 REMARK 3 TORSION ANGLES, PERIOD 3 (DEGREES): 202 ;15.598 ;15.000 REMARK 3 TORSION ANGLES, PERIOD 4 (DEGREES): 3 ;31.980 ;15.000 REMARK 3 CHIRAL-CENTER RESTRAINTS (A**3): 250 ; 0.077 ; 0.200 REMARK 3 GENERAL PLANES REFINED ATOMS (A): 1577 ; 0.007 ; 0.021 REMARK 3 GENERAL PLANES OTHERS (A): 312 ; 0.003 ; 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): 748 ; 1.019 ; 2.047 REMARK 3 MAIN-CHAIN BOND OTHER ATOMS (A**2): 729 ; 1.030 ; 2.078 REMARK 3 MAIN-CHAIN ANGLE REFINED ATOMS (A**2): 921 ; 1.678 ; 3.089 REMARK 3 MAIN-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN BOND REFINED ATOMS (A**2): 693 ; 0.831 ; 2.074 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 22 109 B 22 109 4385 0.12 0.05 REMARK 3 REMARK 3 TWIN DETAILS REMARK 3 NUMBER OF TWIN DOMAINS : 1 REMARK 3 TWIN DOMAIN : 1 REMARK 3 TWIN OPERATOR : -H,K,-L REMARK 3 TWIN FRACTION : 0.4761 REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : 3 REMARK 3 REMARK 3 TLS GROUP : 1 REMARK 3 NUMBER OF COMPONENTS GROUP : 1 REMARK 3 COMPONENTS C SSSEQI TO C SSSEQI REMARK 3 RESIDUE RANGE : A 22 A 110 REMARK 3 ORIGIN FOR THE GROUP (A): 20.7420 30.9830 21.8170 REMARK 3 T TENSOR REMARK 3 T11: 0.1482 T22: 0.2117 REMARK 3 T33: 0.0392 T12: 0.0115 REMARK 3 T13: -0.0268 T23: -0.0213 REMARK 3 L TENSOR REMARK 3 L11: 3.6149 L22: 3.2076 REMARK 3 L33: 0.2070 L12: 0.9886 REMARK 3 L13: -0.3782 L23: 0.5879 REMARK 3 S TENSOR REMARK 3 S11: -0.0281 S12: 0.4741 S13: 0.0201 REMARK 3 S21: -0.2867 S22: -0.0496 S23: 0.3428 REMARK 3 S31: -0.0759 S32: -0.1129 S33: 0.0777 REMARK 3 REMARK 3 TLS GROUP : 2 REMARK 3 NUMBER OF COMPONENTS GROUP : 1 REMARK 3 COMPONENTS C SSSEQI TO C SSSEQI REMARK 3 RESIDUE RANGE : B 20 B 113 REMARK 3 ORIGIN FOR THE GROUP (A): 26.9150 22.4940 66.6460 REMARK 3 T TENSOR REMARK 3 T11: 0.1818 T22: 0.1926 REMARK 3 T33: 0.0230 T12: -0.0428 REMARK 3 T13: -0.0003 T23: -0.0442 REMARK 3 L TENSOR REMARK 3 L11: 2.8765 L22: 1.4542 REMARK 3 L33: 1.6879 L12: -0.4844 REMARK 3 L13: 0.4656 L23: 0.3191 REMARK 3 S TENSOR REMARK 3 S11: 0.0028 S12: 0.0467 S13: -0.1405 REMARK 3 S21: -0.1398 S22: -0.0489 S23: 0.1267 REMARK 3 S31: 0.2064 S32: -0.0775 S33: 0.0461 REMARK 3 REMARK 3 TLS GROUP : 3 REMARK 3 NUMBER OF COMPONENTS GROUP : 2 REMARK 3 COMPONENTS C SSSEQI TO C SSSEQI REMARK 3 RESIDUE RANGE : A 202 A 204 REMARK 3 RESIDUE RANGE : B 201 B 203 REMARK 3 ORIGIN FOR THE GROUP (A): 23.5690 30.9400 51.5560 REMARK 3 T TENSOR REMARK 3 T11: 0.5522 T22: 1.6366 REMARK 3 T33: 0.2567 T12: 0.2995 REMARK 3 T13: -0.2256 T23: -0.4437 REMARK 3 L TENSOR REMARK 3 L11: 0.8568 L22: 0.2462 REMARK 3 L33: 0.0158 L12: 0.4430 REMARK 3 L13: -0.1010 L23: -0.0597 REMARK 3 S TENSOR REMARK 3 S11: 0.0722 S12: -0.4782 S13: 0.0742 REMARK 3 S21: 0.0621 S22: -0.0906 S23: -0.0153 REMARK 3 S31: -0.0061 S32: -0.0102 S33: 0.0184 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 REMARK 4 REMARK 4 4R50 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 21-AUG-14. REMARK 100 THE DEPOSITION ID IS D_1000086906. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 08-JUL-14 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 6.5 - 7.5 REMARK 200 NUMBER OF CRYSTALS USED : 5 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) : 1.000 REMARK 200 MONOCHROMATOR : SI 111 REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : PIXEL REMARK 200 DETECTOR MANUFACTURER : DECTRIS PILATUS 2M REMARK 200 INTENSITY-INTEGRATION SOFTWARE : MOSFLM REMARK 200 DATA SCALING SOFTWARE : SCALA REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 4692 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.850 REMARK 200 RESOLUTION RANGE LOW (A) : 33.810 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 1.900 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 83.0 REMARK 200 DATA REDUNDANCY : NULL REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : NULL REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.85 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 33.78 REMARK 200 COMPLETENESS FOR SHELL (%) : 99.9 REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : 0.14800 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 5.100 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: MOLREP REMARK 200 STARTING MODEL: 3K0D: CHAIN A WITHOUT FILTER AND SOLVENT REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 48.26 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.38 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 40-70% MPD, 20-100MM GLYCINE, PH 6.5 - REMARK 280 7.5, VAPOR DIFFUSION, HANGING DROP REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: I 4 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,-Y,Z REMARK 290 3555 -Y,X,Z REMARK 290 4555 Y,-X,Z REMARK 290 5555 X+1/2,Y+1/2,Z+1/2 REMARK 290 6555 -X+1/2,-Y+1/2,Z+1/2 REMARK 290 7555 -Y+1/2,X+1/2,Z+1/2 REMARK 290 8555 Y+1/2,-X+1/2,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 0.00000 REMARK 290 SMTRY1 3 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 4 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY2 4 -1.000000 0.000000 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 33.78500 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 33.78500 REMARK 290 SMTRY3 5 0.000000 0.000000 1.000000 44.26500 REMARK 290 SMTRY1 6 -1.000000 0.000000 0.000000 33.78500 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 33.78500 REMARK 290 SMTRY3 6 0.000000 0.000000 1.000000 44.26500 REMARK 290 SMTRY1 7 0.000000 -1.000000 0.000000 33.78500 REMARK 290 SMTRY2 7 1.000000 0.000000 0.000000 33.78500 REMARK 290 SMTRY3 7 0.000000 0.000000 1.000000 44.26500 REMARK 290 SMTRY1 8 0.000000 1.000000 0.000000 33.78500 REMARK 290 SMTRY2 8 -1.000000 0.000000 0.000000 33.78500 REMARK 290 SMTRY3 8 0.000000 0.000000 1.000000 44.26500 REMARK 290 REMARK 290 REMARK: NULL REMARK 300 REMARK 300 BIOMOLECULE: 1, 2, 3 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 REMARK: TETRAMERIC CHANNEL WITH FILTER ON THE 4-FOLD AXIS. 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 SOFTWARE DETERMINED QUATERNARY STRUCTURE: OCTAMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 15630 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 33030 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -157.0 KCAL/MOL 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 67.57000 REMARK 350 BIOMT2 2 0.000000 -1.000000 0.000000 67.57000 REMARK 350 BIOMT3 2 0.000000 0.000000 1.000000 0.00000 REMARK 350 BIOMT1 3 0.000000 -1.000000 0.000000 67.57000 REMARK 350 BIOMT2 3 1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT3 3 0.000000 0.000000 1.000000 0.00000 REMARK 350 BIOMT1 4 0.000000 1.000000 0.000000 0.00000 REMARK 350 BIOMT2 4 -1.000000 0.000000 0.000000 67.57000 REMARK 350 BIOMT3 4 0.000000 0.000000 1.000000 0.00000 REMARK 350 APPLY THE FOLLOWING TO CHAINS: B REMARK 350 BIOMT1 5 1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT2 5 0.000000 1.000000 0.000000 0.00000 REMARK 350 BIOMT3 5 0.000000 0.000000 1.000000 -88.53000 REMARK 350 BIOMT1 6 -1.000000 0.000000 0.000000 67.57000 REMARK 350 BIOMT2 6 0.000000 -1.000000 0.000000 67.57000 REMARK 350 BIOMT3 6 0.000000 0.000000 1.000000 -88.53000 REMARK 350 BIOMT1 7 0.000000 -1.000000 0.000000 67.57000 REMARK 350 BIOMT2 7 1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT3 7 0.000000 0.000000 1.000000 -88.53000 REMARK 350 BIOMT1 8 0.000000 1.000000 0.000000 0.00000 REMARK 350 BIOMT2 8 -1.000000 0.000000 0.000000 67.57000 REMARK 350 BIOMT3 8 0.000000 0.000000 1.000000 -88.53000 REMARK 350 REMARK 350 BIOMOLECULE: 2 REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: TETRAMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TETRAMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 6540 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 16110 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -59.0 KCAL/MOL 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 67.57000 REMARK 350 BIOMT2 2 0.000000 -1.000000 0.000000 67.57000 REMARK 350 BIOMT3 2 0.000000 0.000000 1.000000 0.00000 REMARK 350 BIOMT1 3 0.000000 -1.000000 0.000000 67.57000 REMARK 350 BIOMT2 3 1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT3 3 0.000000 0.000000 1.000000 0.00000 REMARK 350 BIOMT1 4 0.000000 1.000000 0.000000 0.00000 REMARK 350 BIOMT2 4 -1.000000 0.000000 0.000000 67.57000 REMARK 350 BIOMT3 4 0.000000 0.000000 1.000000 0.00000 REMARK 350 REMARK 350 BIOMOLECULE: 3 REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: TETRAMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TETRAMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 8150 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 17870 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -82.0 KCAL/MOL REMARK 350 APPLY THE FOLLOWING TO CHAINS: 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 -1.000000 0.000000 0.000000 67.57000 REMARK 350 BIOMT2 2 0.000000 -1.000000 0.000000 67.57000 REMARK 350 BIOMT3 2 0.000000 0.000000 1.000000 0.00000 REMARK 350 BIOMT1 3 0.000000 -1.000000 0.000000 67.57000 REMARK 350 BIOMT2 3 1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT3 3 0.000000 0.000000 1.000000 0.00000 REMARK 350 BIOMT1 4 0.000000 1.000000 0.000000 0.00000 REMARK 350 BIOMT2 4 -1.000000 0.000000 0.000000 67.57000 REMARK 350 BIOMT3 4 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 301 LIES ON A SPECIAL POSITION. REMARK 375 HOH A 316 LIES ON A SPECIAL POSITION. REMARK 375 HOH A 317 LIES ON A SPECIAL POSITION. REMARK 375 HOH A 323 LIES ON A SPECIAL POSITION. REMARK 375 HOH A 324 LIES ON A SPECIAL POSITION. REMARK 375 HOH A 325 LIES ON A SPECIAL POSITION. REMARK 375 HOH B 301 LIES ON A SPECIAL POSITION. REMARK 375 HOH B 302 LIES ON A SPECIAL POSITION. REMARK 375 HOH B 303 LIES ON A SPECIAL POSITION. REMARK 375 HOH B 312 LIES ON A SPECIAL POSITION. REMARK 375 HOH B 320 LIES ON A SPECIAL POSITION. REMARK 375 HOH B 321 LIES ON A SPECIAL POSITION. REMARK 375 HOH B 322 LIES ON A SPECIAL POSITION. 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 MET A 18 REMARK 465 ALA A 19 REMARK 465 LYS A 20 REMARK 465 ASP A 21 REMARK 465 VAL A 111 REMARK 465 PRO A 112 REMARK 465 ARG A 113 REMARK 465 MET B 18 REMARK 465 ALA B 19 REMARK 470 REMARK 470 MISSING ATOM REMARK 470 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (M=MODEL NUMBER; REMARK 470 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; REMARK 470 I=INSERTION CODE): REMARK 470 M RES CSSEQI ATOMS REMARK 470 LYS A 22 CG CD CE NZ REMARK 470 GLU A 23 CG CD OE1 OE2 REMARK 470 GLN A 25 CG CD OE1 NE2 REMARK 470 LEU A 27 CG CD1 CD2 REMARK 470 LEU A 30 CD1 CD2 REMARK 470 LEU A 89 CD1 CD2 REMARK 470 HIS A 95 CG ND1 CD2 CE1 NE2 REMARK 470 LYS A 96 CG CD CE NZ REMARK 470 VAL A 99 CG1 CG2 REMARK 470 ASN A 100 CG OD1 ND2 REMARK 470 GLN A 102 CG CD OE1 NE2 REMARK 470 LEU A 103 CG CD1 CD2 REMARK 470 ILE A 106 CG1 CG2 CD1 REMARK 470 LEU A 107 CD1 CD2 REMARK 470 LEU A 110 CG CD1 CD2 REMARK 470 LYS B 20 CG CD CE NZ REMARK 470 ASP B 21 CG OD1 OD2 REMARK 470 LYS B 22 CG CD CE NZ REMARK 470 GLN B 71 CG CD OE1 NE2 REMARK 470 ILE B 77 CD1 REMARK 470 LEU B 110 CD1 CD2 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 GLU A 66 55.38 -99.47 REMARK 500 VAL A 101 -50.45 -122.80 REMARK 500 GLU B 66 55.89 -99.41 REMARK 500 REMARK 500 REMARK: NULL REMARK 600 REMARK 600 HETEROGEN REMARK 600 REMARK 600 THE AUTHORS STATE THAT THE LITHIUM ION COULD BE AT THE BRIDGE OF REMARK 600 TWO WATER MOLECULES IN THE CENTRAL CAVITY OF THE K-CHANNELS. SINCE REMARK 600 IT HAS ONLY 3 ELECTRONS THE RESOLUTION IS NOT SUFFICIENT TO REMARK 600 DETERMINE ITS POSITION WITH A HIGH DEGREE OF RELIABILITY. THEREFORE, REMARK 600 ONLY THE TWO WATER MOLECULES WERE INCLUDED IN THE COORDINATES. REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MPD A 201 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE GLY A 202 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE GLY A 203 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE GLY A 204 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC5 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE GLY B 201 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC6 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE GLY B 202 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC7 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE GLY B 203 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 3K0D RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF CNG MIMICKING NAK MUTANT, NAK-ETPP, K+ COMPLEX REMARK 900 RELATED ID: 3K0G RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF CNG MIMICKING NAK MUTANT, NAK-ETPP, NA+ COMPLEX REMARK 900 RELATED ID: 4R6Z RELATED DB: PDB DBREF 4R50 A 20 109 UNP Q81HW2 Q81HW2_BACCR 20 110 DBREF 4R50 B 20 109 UNP Q81HW2 Q81HW2_BACCR 20 110 SEQADV 4R50 MET A 18 UNP Q81HW2 EXPRESSION TAG SEQADV 4R50 ALA A 19 UNP Q81HW2 EXPRESSION TAG SEQADV 4R50 GLU A 66 UNP Q81HW2 ASP 66 ENGINEERED MUTATION SEQADV 4R50 THR A 67 UNP Q81HW2 GLY 67 ENGINEERED MUTATION SEQADV 4R50 PRO A 68 UNP Q81HW2 ASN 68 ENGINEERED MUTATION SEQADV 4R50 PRO A 69 UNP Q81HW2 PHE 69 ENGINEERED MUTATION SEQADV 4R50 A UNP Q81HW2 SER 70 DELETION SEQADV 4R50 LEU A 110 UNP Q81HW2 EXPRESSION TAG SEQADV 4R50 VAL A 111 UNP Q81HW2 EXPRESSION TAG SEQADV 4R50 PRO A 112 UNP Q81HW2 EXPRESSION TAG SEQADV 4R50 ARG A 113 UNP Q81HW2 EXPRESSION TAG SEQADV 4R50 MET B 18 UNP Q81HW2 EXPRESSION TAG SEQADV 4R50 ALA B 19 UNP Q81HW2 EXPRESSION TAG SEQADV 4R50 GLU B 66 UNP Q81HW2 ASP 66 ENGINEERED MUTATION SEQADV 4R50 THR B 67 UNP Q81HW2 GLY 67 ENGINEERED MUTATION SEQADV 4R50 PRO B 68 UNP Q81HW2 ASN 68 ENGINEERED MUTATION SEQADV 4R50 PRO B 69 UNP Q81HW2 PHE 69 ENGINEERED MUTATION SEQADV 4R50 B UNP Q81HW2 SER 70 DELETION SEQADV 4R50 LEU B 110 UNP Q81HW2 EXPRESSION TAG SEQADV 4R50 VAL B 111 UNP Q81HW2 EXPRESSION TAG SEQADV 4R50 PRO B 112 UNP Q81HW2 EXPRESSION TAG SEQADV 4R50 ARG B 113 UNP Q81HW2 EXPRESSION TAG SEQRES 1 A 96 MET ALA LYS ASP LYS GLU PHE GLN VAL LEU PHE VAL LEU SEQRES 2 A 96 THR ILE LEU THR LEU ILE SER GLY THR ILE PHE TYR SER SEQRES 3 A 96 THR VAL GLU GLY LEU ARG PRO ILE ASP ALA LEU TYR PHE SEQRES 4 A 96 SER VAL VAL THR LEU THR THR VAL GLY GLU THR PRO PRO SEQRES 5 A 96 PRO GLN THR ASP PHE GLY LYS ILE PHE THR ILE LEU TYR SEQRES 6 A 96 ILE PHE ILE GLY ILE GLY LEU VAL PHE GLY PHE ILE HIS SEQRES 7 A 96 LYS LEU ALA VAL ASN VAL GLN LEU PRO SER ILE LEU SER SEQRES 8 A 96 ASN LEU VAL PRO ARG SEQRES 1 B 96 MET ALA LYS ASP LYS GLU PHE GLN VAL LEU PHE VAL LEU SEQRES 2 B 96 THR ILE LEU THR LEU ILE SER GLY THR ILE PHE TYR SER SEQRES 3 B 96 THR VAL GLU GLY LEU ARG PRO ILE ASP ALA LEU TYR PHE SEQRES 4 B 96 SER VAL VAL THR LEU THR THR VAL GLY GLU THR PRO PRO SEQRES 5 B 96 PRO GLN THR ASP PHE GLY LYS ILE PHE THR ILE LEU TYR SEQRES 6 B 96 ILE PHE ILE GLY ILE GLY LEU VAL PHE GLY PHE ILE HIS SEQRES 7 B 96 LYS LEU ALA VAL ASN VAL GLN LEU PRO SER ILE LEU SER SEQRES 8 B 96 ASN LEU VAL PRO ARG HET MPD A 201 8 HET GLY A 202 5 HET GLY A 203 5 HET GLY A 204 5 HET GLY B 201 5 HET GLY B 202 5 HET GLY B 203 5 HETNAM MPD (4S)-2-METHYL-2,4-PENTANEDIOL HETNAM GLY GLYCINE FORMUL 3 MPD C6 H14 O2 FORMUL 4 GLY 6(C2 H5 N O2) FORMUL 10 HOH *48(H2 O) HELIX 1 1 LYS A 22 GLU A 46 1 25 HELIX 2 2 ARG A 49 THR A 62 1 14 HELIX 3 3 THR A 72 VAL A 101 1 30 HELIX 4 4 VAL A 101 LEU A 110 1 10 HELIX 5 5 ASP B 21 GLU B 46 1 26 HELIX 6 6 ARG B 49 THR B 62 1 14 HELIX 7 7 THR B 72 VAL B 101 1 30 HELIX 8 8 VAL B 101 LEU B 110 1 10 SITE 1 AC1 5 SER A 108 LEU A 110 HOH A 319 SER B 108 SITE 2 AC1 5 ARG B 113 SITE 1 AC2 2 ASP A 52 PRO A 68 SITE 1 AC3 4 GLU A 46 LEU A 48 PRO A 68 PRO A 69 SITE 1 AC4 1 ARG A 49 SITE 1 AC5 1 PHE B 91 SITE 1 AC6 3 ASP B 52 TYR B 55 PHE B 56 SITE 1 AC7 1 PHE B 84 CRYST1 67.570 67.570 88.530 90.00 90.00 90.00 I 4 16 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 0.014799 0.000000 0.000000 0.00000 SCALE2 0.000000 0.014799 0.000000 0.00000 SCALE3 0.000000 0.000000 0.011296 0.00000