HEADER MEMBRANE PROTEIN 29-FEB-20 6W0F TITLE CLOSED-GATE KCSA SOAKED IN 0MM KCL/5MM BACL2 COMPND MOL_ID: 1; COMPND 2 MOLECULE: FAB HEAVY CHAIN; COMPND 3 CHAIN: A; COMPND 4 ENGINEERED: YES; COMPND 5 MOL_ID: 2; COMPND 6 MOLECULE: FAB LIGHT CHAIN; COMPND 7 CHAIN: B; COMPND 8 ENGINEERED: YES; COMPND 9 MOL_ID: 3; COMPND 10 MOLECULE: PH-GATED POTASSIUM CHANNEL KCSA; COMPND 11 CHAIN: C; COMPND 12 SYNONYM: STREPTOMYCES LIVIDANS K+ CHANNEL,SKC1; COMPND 13 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: RATTUS NORVEGICUS; SOURCE 3 ORGANISM_TAXID: 10116; SOURCE 4 EXPRESSION_SYSTEM: HOMO SAPIENS; SOURCE 5 EXPRESSION_SYSTEM_TAXID: 9606; SOURCE 6 MOL_ID: 2; SOURCE 7 ORGANISM_SCIENTIFIC: RATTUS NORVEGICUS; SOURCE 8 ORGANISM_TAXID: 10116; SOURCE 9 EXPRESSION_SYSTEM: HOMO SAPIENS; SOURCE 10 EXPRESSION_SYSTEM_TAXID: 9606; SOURCE 11 MOL_ID: 3; SOURCE 12 ORGANISM_SCIENTIFIC: STREPTOMYCES LIVIDANS; SOURCE 13 ORGANISM_TAXID: 1916; SOURCE 14 GENE: KCSA, SKC1; SOURCE 15 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 16 EXPRESSION_SYSTEM_TAXID: 562 KEYWDS ION CHANNEL, MEMBRANE PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR A.ROHAIM,L.GONG,J.LI REVDAT 5 23-OCT-24 6W0F 1 REMARK REVDAT 4 11-OCT-23 6W0F 1 REMARK REVDAT 3 19-AUG-20 6W0F 1 JRNL REVDAT 2 15-JUL-20 6W0F 1 JRNL REVDAT 1 08-JUL-20 6W0F 0 JRNL AUTH A.ROHAIM,L.GONG,J.LI,H.RUI,L.BLACHOWICZ,B.ROUX JRNL TITL OPEN AND CLOSED STRUCTURES OF A BARIUM-BLOCKED POTASSIUM JRNL TITL 2 CHANNEL. JRNL REF J.MOL.BIOL. V. 432 4783 2020 JRNL REFN ESSN 1089-8638 JRNL PMID 32615129 JRNL DOI 10.1016/J.JMB.2020.06.012 REMARK 2 REMARK 2 RESOLUTION. 2.40 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC 5.8.0232 REMARK 3 AUTHORS : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER, REMARK 3 : NICHOLLS,WINN,LONG,VAGIN REMARK 3 REMARK 3 REFINEMENT TARGET : NULL REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.40 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 67.84 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 99.9 REMARK 3 NUMBER OF REFLECTIONS : 33297 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) : 0.245 REMARK 3 R VALUE (WORKING SET) : 0.244 REMARK 3 FREE R VALUE : 0.270 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.100 REMARK 3 FREE R VALUE TEST SET COUNT : 1793 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) : 2.40 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.46 REMARK 3 REFLECTION IN BIN (WORKING SET) : 2493 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 99.89 REMARK 3 BIN R VALUE (WORKING SET) : 0.3980 REMARK 3 BIN FREE R VALUE SET COUNT : 128 REMARK 3 BIN FREE R VALUE : 0.4100 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 4016 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 1 REMARK 3 SOLVENT ATOMS : 6 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 34.77 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 1.11000 REMARK 3 B22 (A**2) : 1.11000 REMARK 3 B33 (A**2) : -2.21000 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): 0.288 REMARK 3 ESU BASED ON FREE R VALUE (A): 0.229 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 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : 0.927 REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : 0.923 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES COUNT RMS WEIGHT REMARK 3 BOND LENGTHS REFINED ATOMS (A): 4120 ; 0.016 ; 0.013 REMARK 3 BOND LENGTHS OTHERS (A): 3684 ; 0.037 ; 0.017 REMARK 3 BOND ANGLES REFINED ATOMS (DEGREES): 5635 ; 2.019 ; 1.640 REMARK 3 BOND ANGLES OTHERS (DEGREES): 8534 ; 2.516 ; 1.565 REMARK 3 TORSION ANGLES, PERIOD 1 (DEGREES): 531 ; 7.846 ; 5.000 REMARK 3 TORSION ANGLES, PERIOD 2 (DEGREES): 173 ;34.448 ;21.676 REMARK 3 TORSION ANGLES, PERIOD 3 (DEGREES): 611 ;12.637 ;15.000 REMARK 3 TORSION ANGLES, PERIOD 4 (DEGREES): 21 ;19.728 ;15.000 REMARK 3 CHIRAL-CENTER RESTRAINTS (A**3): 563 ; 0.081 ; 0.200 REMARK 3 GENERAL PLANES REFINED ATOMS (A): 4657 ; 0.009 ; 0.020 REMARK 3 GENERAL PLANES OTHERS (A): 878 ; 0.011 ; 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 NUMBER OF DIFFERENT NCS GROUPS : NULL REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : NULL REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : NULL 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 6W0F COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 06-MAR-20. REMARK 100 THE DEPOSITION ID IS D_1000247405. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 28-OCT-18 REMARK 200 TEMPERATURE (KELVIN) : 98 REMARK 200 PH : 5.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : APS REMARK 200 BEAMLINE : 24-ID-C REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.9791 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : PIXEL REMARK 200 DETECTOR MANUFACTURER : DECTRIS PILATUS 6M-F REMARK 200 INTENSITY-INTEGRATION SOFTWARE : MOSFLM REMARK 200 DATA SCALING SOFTWARE : AIMLESS REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 35095 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.400 REMARK 200 RESOLUTION RANGE LOW (A) : 67.840 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.9 REMARK 200 DATA REDUNDANCY : 6.900 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 7.6000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.40 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.49 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: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: PHASER REMARK 200 STARTING MODEL: 1K4C REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 68.56 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 3.91 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 20 % PEG 400, 50 MM MAGNESIUM ACETATE, REMARK 280 50 MM SODIUM ACETATE, PH 5.5, VAPOR DIFFUSION, HANGING DROP, REMARK 280 TEMPERATURE 293K 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 77.50450 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 77.50450 REMARK 290 SMTRY3 5 0.000000 0.000000 1.000000 37.66500 REMARK 290 SMTRY1 6 -1.000000 0.000000 0.000000 77.50450 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 77.50450 REMARK 290 SMTRY3 6 0.000000 0.000000 1.000000 37.66500 REMARK 290 SMTRY1 7 0.000000 -1.000000 0.000000 77.50450 REMARK 290 SMTRY2 7 1.000000 0.000000 0.000000 77.50450 REMARK 290 SMTRY3 7 0.000000 0.000000 1.000000 37.66500 REMARK 290 SMTRY1 8 0.000000 1.000000 0.000000 77.50450 REMARK 290 SMTRY2 8 -1.000000 0.000000 0.000000 77.50450 REMARK 290 SMTRY3 8 0.000000 0.000000 1.000000 37.66500 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: DODECAMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DODECAMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, 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 350 APPLY THE FOLLOWING TO CHAINS: A, B, C REMARK 350 BIOMT1 2 -1.000000 0.000000 0.000000 310.01800 REMARK 350 BIOMT2 2 0.000000 -1.000000 0.000000 310.01800 REMARK 350 BIOMT3 2 0.000000 0.000000 1.000000 0.00000 REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B, C REMARK 350 BIOMT1 3 0.000000 -1.000000 0.000000 310.01800 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 APPLY THE FOLLOWING TO CHAINS: A, B, C REMARK 350 BIOMT1 4 0.000000 1.000000 0.000000 0.00000 REMARK 350 BIOMT2 4 -1.000000 0.000000 0.000000 310.01800 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 K K C 201 LIES ON A SPECIAL POSITION. REMARK 375 HOH C 302 LIES ON A SPECIAL POSITION. 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 GLN A 1 N REMARK 470 LYS A 23 CG CD CE NZ REMARK 470 LYS A 63 CG CD CE NZ REMARK 470 GLN A 65 CG CD OE1 NE2 REMARK 470 LYS A 74 CG CD CE NZ REMARK 470 GLU A 89 CG CD OE1 OE2 REMARK 470 LYS A 120 CG CD CE NZ REMARK 470 GLN A 136 CG CD OE1 NE2 REMARK 470 THR A 137 OG1 CG2 REMARK 470 ASN A 138 CG OD1 ND2 REMARK 470 SER A 165 OG REMARK 470 SER A 166 OG REMARK 470 SER A 177 OG REMARK 470 ASP A 178 CG OD1 OD2 REMARK 470 ASP A 219 CG OD1 OD2 REMARK 470 ASN B 212 CG OD1 ND2 REMARK 470 SER C 22 OG REMARK 470 ARG C 117 CG CD NE CZ NH1 NH2 REMARK 470 HIS C 124 CG ND1 CD2 CE1 NE2 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 ASP A 102 OH TYR B 50 2.03 REMARK 500 O LEU C 81 O HOH C 301 2.03 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 CD2 HIS C 25 O HOH C 304 3755 2.11 REMARK 500 REMARK 500 REMARK: NULL 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 THR C 101 CA - CB - OG1 ANGL. DEV. = -13.2 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 CYS A 22 91.98 -160.17 REMARK 500 SER A 161 33.19 38.54 REMARK 500 SER A 165 -43.10 -139.84 REMARK 500 ALA B 51 -28.03 76.54 REMARK 500 SER B 52 -6.40 -151.97 REMARK 500 SER B 77 80.21 59.69 REMARK 500 PRO B 141 -176.80 -66.49 REMARK 500 GLN B 156 -37.91 -137.11 REMARK 500 REMARK 500 REMARK: NULL REMARK 600 REMARK 600 HETEROGEN REMARK 600 REMARK 600 THE POTASSIUM ION OBSERVED IN THE STRUCTURE CAME FROM THE BUFFER REMARK 600 USED DURING GEL FILTRATION PURIFICATION OF KCSA. NO POTASSIUM WAS REMARK 600 PRESENT IN THE SOLUTION USED TO SOAK THE CRYSTAL 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 K C 201 K REMARK 620 N RES CSSEQI ATOM REMARK 620 1 THR C 75 O REMARK 620 2 THR C 75 OG1 48.8 REMARK 620 3 THR C 75 O 0.0 48.8 REMARK 620 4 THR C 75 OG1 48.8 0.0 48.8 REMARK 620 N 1 2 3 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue K C 201 DBREF 6W0F A 1 219 PDB 6W0F 6W0F 1 219 DBREF 6W0F B 1 212 PDB 6W0F 6W0F 1 212 DBREF 6W0F C 22 124 UNP P0A334 KCSA_STRLI 22 124 SEQADV 6W0F CYS C 90 UNP P0A334 LEU 90 ENGINEERED MUTATION SEQRES 1 A 219 GLN VAL GLN LEU GLN GLN PRO GLY ALA GLU LEU VAL LYS SEQRES 2 A 219 PRO GLY ALA SER VAL LYS LEU SER CYS LYS ALA SER GLY SEQRES 3 A 219 TYR THR PHE THR SER ASP TRP ILE HIS TRP VAL LYS GLN SEQRES 4 A 219 ARG PRO GLY HIS GLY LEU GLU TRP ILE GLY GLU ILE ILE SEQRES 5 A 219 PRO SER TYR GLY ARG ALA ASN TYR ASN GLU LYS ILE GLN SEQRES 6 A 219 LYS LYS ALA THR LEU THR ALA ASP LYS SER SER SER THR SEQRES 7 A 219 ALA PHE MET GLN LEU SER SER LEU THR SER GLU ASP SER SEQRES 8 A 219 ALA VAL TYR TYR CYS ALA ARG GLU ARG GLY ASP GLY TYR SEQRES 9 A 219 PHE ALA VAL TRP GLY ALA GLY THR THR VAL THR VAL SER SEQRES 10 A 219 SER ALA LYS THR THR PRO PRO SER VAL TYR PRO LEU ALA SEQRES 11 A 219 PRO GLY SER ALA ALA GLN THR ASN SER MET VAL THR LEU SEQRES 12 A 219 GLY CYS LEU VAL LYS GLY TYR PHE PRO GLU PRO VAL THR SEQRES 13 A 219 VAL THR TRP ASN SER GLY SER LEU SER SER GLY VAL HIS SEQRES 14 A 219 THR PHE PRO ALA VAL LEU GLN SER ASP LEU TYR THR LEU SEQRES 15 A 219 SER SER SER VAL THR VAL PRO SER SER SER TRP PRO SER SEQRES 16 A 219 GLU THR VAL THR CYS ASN VAL ALA HIS PRO ALA SER SER SEQRES 17 A 219 THR LYS VAL ASP LYS LYS ILE VAL PRO ARG ASP SEQRES 1 B 212 ASP ILE LEU LEU THR GLN SER PRO ALA ILE LEU SER VAL SEQRES 2 B 212 SER PRO GLY GLU ARG VAL SER PHE SER CYS ARG ALA SER SEQRES 3 B 212 GLN SER ILE GLY THR ASP ILE HIS TRP TYR GLN GLN ARG SEQRES 4 B 212 THR ASN GLY SER PRO ARG LEU LEU ILE LYS TYR ALA SER SEQRES 5 B 212 GLU SER ILE SER GLY ILE PRO SER ARG PHE SER GLY SER SEQRES 6 B 212 GLY SER GLY THR ASP PHE THR LEU SER ILE ASN SER VAL SEQRES 7 B 212 GLU SER GLU ASP ILE ALA ASN TYR TYR CYS GLN GLN SER SEQRES 8 B 212 ASN ARG TRP PRO PHE THR PHE GLY SER GLY THR LYS LEU SEQRES 9 B 212 GLU ILE LYS ARG ALA ASP ALA ALA PRO THR VAL SER ILE SEQRES 10 B 212 PHE PRO PRO SER SER GLU GLN LEU THR SER GLY GLY ALA SEQRES 11 B 212 SER VAL VAL CYS PHE LEU ASN ASN PHE TYR PRO LYS ASP SEQRES 12 B 212 ILE ASN VAL LYS TRP LYS ILE ASP GLY SER GLU ARG GLN SEQRES 13 B 212 ASN GLY VAL LEU ASN SER TRP THR ASP GLN ASP SER LYS SEQRES 14 B 212 ASP SER THR TYR SER MET SER SER THR LEU THR LEU THR SEQRES 15 B 212 LYS ASP GLU TYR GLU ARG HIS ASN SER TYR THR CYS GLU SEQRES 16 B 212 ALA THR HIS LYS THR SER THR SER PRO ILE VAL LYS SER SEQRES 17 B 212 PHE ASN ARG ASN SEQRES 1 C 103 SER ALA LEU HIS TRP ARG ALA ALA GLY ALA ALA THR VAL SEQRES 2 C 103 LEU LEU VAL ILE VAL LEU LEU ALA GLY SER TYR LEU ALA SEQRES 3 C 103 VAL LEU ALA GLU ARG GLY ALA PRO GLY ALA GLN LEU ILE SEQRES 4 C 103 THR TYR PRO ARG ALA LEU TRP TRP SER VAL GLU THR ALA SEQRES 5 C 103 THR THR VAL GLY TYR GLY ASP LEU TYR PRO VAL THR LEU SEQRES 6 C 103 TRP GLY ARG CYS VAL ALA VAL VAL VAL MET VAL ALA GLY SEQRES 7 C 103 ILE THR SER PHE GLY LEU VAL THR ALA ALA LEU ALA THR SEQRES 8 C 103 TRP PHE VAL GLY ARG GLU GLN GLU ARG ARG GLY HIS HET K C 201 1 HETNAM K POTASSIUM ION FORMUL 4 K K 1+ FORMUL 5 HOH *6(H2 O) HELIX 1 AA1 THR A 87 SER A 91 5 5 HELIX 2 AA2 SER A 161 SER A 163 5 3 HELIX 3 AA3 PRO A 205 SER A 208 5 4 HELIX 4 AA4 GLU B 79 ILE B 83 5 5 HELIX 5 AA5 SER B 121 THR B 126 1 6 HELIX 6 AA6 LYS B 183 ARG B 188 1 6 HELIX 7 AA7 ALA C 23 ARG C 52 1 30 HELIX 8 AA8 THR C 61 THR C 74 1 14 HELIX 9 AA9 THR C 85 ARG C 121 1 37 SHEET 1 AA1 4 LEU A 4 GLN A 5 0 SHEET 2 AA1 4 VAL A 18 ALA A 24 -1 O LYS A 23 N GLN A 5 SHEET 3 AA1 4 THR A 78 LEU A 83 -1 O MET A 81 N LEU A 20 SHEET 4 AA1 4 ALA A 68 ASP A 73 -1 N ASP A 73 O THR A 78 SHEET 1 AA2 6 ALA A 9 VAL A 12 0 SHEET 2 AA2 6 THR A 112 VAL A 116 1 O THR A 115 N VAL A 12 SHEET 3 AA2 6 ALA A 92 GLU A 99 -1 N ALA A 92 O VAL A 114 SHEET 4 AA2 6 TRP A 33 GLN A 39 -1 N GLN A 39 O VAL A 93 SHEET 5 AA2 6 GLU A 46 ILE A 51 -1 O GLU A 46 N LYS A 38 SHEET 6 AA2 6 ALA A 58 TYR A 60 -1 O ASN A 59 N GLU A 50 SHEET 1 AA3 4 ALA A 9 VAL A 12 0 SHEET 2 AA3 4 THR A 112 VAL A 116 1 O THR A 115 N VAL A 12 SHEET 3 AA3 4 ALA A 92 GLU A 99 -1 N ALA A 92 O VAL A 114 SHEET 4 AA3 4 VAL A 107 TRP A 108 -1 O VAL A 107 N ARG A 98 SHEET 1 AA4 4 SER A 125 LEU A 129 0 SHEET 2 AA4 4 MET A 140 TYR A 150 -1 O LYS A 148 N SER A 125 SHEET 3 AA4 4 TYR A 180 PRO A 189 -1 O TYR A 180 N TYR A 150 SHEET 4 AA4 4 VAL A 168 THR A 170 -1 N HIS A 169 O SER A 185 SHEET 1 AA5 4 SER A 125 LEU A 129 0 SHEET 2 AA5 4 MET A 140 TYR A 150 -1 O LYS A 148 N SER A 125 SHEET 3 AA5 4 TYR A 180 PRO A 189 -1 O TYR A 180 N TYR A 150 SHEET 4 AA5 4 VAL A 174 LEU A 175 -1 N VAL A 174 O THR A 181 SHEET 1 AA6 3 THR A 156 TRP A 159 0 SHEET 2 AA6 3 THR A 199 HIS A 204 -1 O ASN A 201 N THR A 158 SHEET 3 AA6 3 THR A 209 LYS A 214 -1 O THR A 209 N HIS A 204 SHEET 1 AA7 4 LEU B 4 THR B 5 0 SHEET 2 AA7 4 VAL B 19 ALA B 25 -1 O ARG B 24 N THR B 5 SHEET 3 AA7 4 ASP B 70 ILE B 75 -1 O PHE B 71 N CYS B 23 SHEET 4 AA7 4 PHE B 62 SER B 67 -1 N SER B 65 O THR B 72 SHEET 1 AA8 6 ILE B 10 VAL B 13 0 SHEET 2 AA8 6 THR B 102 ILE B 106 1 O GLU B 105 N LEU B 11 SHEET 3 AA8 6 ASN B 85 GLN B 90 -1 N TYR B 86 O THR B 102 SHEET 4 AA8 6 ILE B 33 GLN B 38 -1 N GLN B 38 O ASN B 85 SHEET 5 AA8 6 ARG B 45 LYS B 49 -1 O LEU B 47 N TRP B 35 SHEET 6 AA8 6 GLU B 53 SER B 54 -1 O GLU B 53 N LYS B 49 SHEET 1 AA9 4 ILE B 10 VAL B 13 0 SHEET 2 AA9 4 THR B 102 ILE B 106 1 O GLU B 105 N LEU B 11 SHEET 3 AA9 4 ASN B 85 GLN B 90 -1 N TYR B 86 O THR B 102 SHEET 4 AA9 4 THR B 97 PHE B 98 -1 O THR B 97 N GLN B 90 SHEET 1 AB1 4 THR B 114 PHE B 118 0 SHEET 2 AB1 4 GLY B 129 PHE B 139 -1 O ASN B 137 N THR B 114 SHEET 3 AB1 4 TYR B 173 THR B 182 -1 O LEU B 179 N VAL B 132 SHEET 4 AB1 4 VAL B 159 TRP B 163 -1 N SER B 162 O SER B 176 SHEET 1 AB2 4 SER B 153 ARG B 155 0 SHEET 2 AB2 4 ASN B 145 ILE B 150 -1 N ILE B 150 O SER B 153 SHEET 3 AB2 4 SER B 191 HIS B 198 -1 O GLU B 195 N LYS B 147 SHEET 4 AB2 4 SER B 201 ASN B 210 -1 O LYS B 207 N CYS B 194 SSBOND 1 CYS A 22 CYS A 96 1555 1555 2.44 SSBOND 2 CYS A 145 CYS A 200 1555 1555 2.35 SSBOND 3 CYS B 23 CYS B 88 1555 1555 2.25 SSBOND 4 CYS B 134 CYS B 194 1555 1555 2.20 LINK O THR C 75 K K C 201 1555 1555 2.62 LINK OG1 THR C 75 K K C 201 1555 1555 3.03 LINK O THR C 75 K K C 201 1555 2775 2.62 LINK OG1 THR C 75 K K C 201 1555 2775 3.03 CISPEP 1 PHE A 151 PRO A 152 0 -10.77 CISPEP 2 GLU A 153 PRO A 154 0 -8.65 CISPEP 3 TRP A 193 PRO A 194 0 -1.80 CISPEP 4 SER B 7 PRO B 8 0 -8.19 CISPEP 5 TRP B 94 PRO B 95 0 -10.26 CISPEP 6 TYR B 140 PRO B 141 0 -0.95 SITE 1 AC1 1 THR C 75 CRYST1 155.009 155.009 75.330 90.00 90.00 90.00 I 4 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 0.006451 0.000000 0.000000 0.00000 SCALE2 0.000000 0.006451 0.000000 0.00000 SCALE3 0.000000 0.000000 0.013275 0.00000