HEADER MEMBRANE PROTEIN 02-OCT-03 1R3I TITLE POTASSIUM CHANNEL KCSA-FAB COMPLEX IN RB+ COMPND MOL_ID: 1; COMPND 2 MOLECULE: ANTIBODY FAB FRAGMENT LIGHT CHAIN; COMPND 3 CHAIN: L; COMPND 4 MOL_ID: 2; COMPND 5 MOLECULE: ANTIBODY FAB FRAGMENT HEAVY CHAIN; COMPND 6 CHAIN: H; COMPND 7 MOL_ID: 3; COMPND 8 MOLECULE: VOLTAGE-GATED POTASSIUM CHANNEL; COMPND 9 CHAIN: C; COMPND 10 ENGINEERED: YES; COMPND 11 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: MUS MUSCULUS; SOURCE 3 ORGANISM_COMMON: HOUSE MOUSE; SOURCE 4 ORGANISM_TAXID: 10090; SOURCE 5 MOL_ID: 2; SOURCE 6 ORGANISM_SCIENTIFIC: MUS MUSCULUS; SOURCE 7 ORGANISM_COMMON: HOUSE MOUSE; SOURCE 8 ORGANISM_TAXID: 10090; SOURCE 9 MOL_ID: 3; SOURCE 10 ORGANISM_SCIENTIFIC: STREPTOMYCES LIVIDANS; SOURCE 11 ORGANISM_TAXID: 1916; SOURCE 12 GENE: KCSA, SKC1, SCO7660, SC10F4.33; SOURCE 13 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 14 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 15 EXPRESSION_SYSTEM_STRAIN: XL1BLUE; SOURCE 16 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 17 EXPRESSION_SYSTEM_PLASMID: PQE60 KEYWDS MEMBRANE PROTEIN, POTASSIUM CHANNEL, KCSA-FAB COMPLEX, RUBIDIUM EXPDTA X-RAY DIFFRACTION AUTHOR Y.ZHOU,R.MACKINNON REVDAT 6 30-OCT-24 1R3I 1 REMARK REVDAT 5 23-AUG-23 1R3I 1 REMARK REVDAT 4 27-OCT-21 1R3I 1 REMARK SEQADV LINK REVDAT 3 16-NOV-11 1R3I 1 VERSN HETATM REVDAT 2 24-FEB-09 1R3I 1 VERSN REVDAT 1 25-NOV-03 1R3I 0 JRNL AUTH Y.ZHOU,R.MACKINNON JRNL TITL THE OCCUPANCY OF IONS IN THE K+ SELECTIVITY FILTER: CHARGE JRNL TITL 2 BALANCE AND COUPLING OF ION BINDING TO A PROTEIN JRNL TITL 3 CONFORMATIONAL CHANGE UNDERLIE HIGH CONDUCTION RATES JRNL REF J.MOL.BIOL. V. 333 965 2003 JRNL REFN ISSN 0022-2836 JRNL PMID 14583193 JRNL DOI 10.1016/J.JMB.2003.09.022 REMARK 2 REMARK 2 RESOLUTION. 2.40 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CNS REMARK 3 AUTHORS : BRUNGER,ADAMS,CLORE,DELANO,GROS,GROSSE- REMARK 3 : KUNSTLEVE,JIANG,KUSZEWSKI,NILGES,PANNU, REMARK 3 : READ,RICE,SIMONSON,WARREN REMARK 3 REMARK 3 REFINEMENT TARGET : ENGH & HUBER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.40 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 30.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : NULL REMARK 3 DATA CUTOFF LOW (ABS(F)) : NULL REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 98.9 REMARK 3 NUMBER OF REFLECTIONS : 33941 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 SET) : 0.217 REMARK 3 FREE R VALUE : 0.236 REMARK 3 FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 FREE R VALUE TEST SET COUNT : 1697 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : NULL REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : NULL REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 2.43 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.55 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 98.90 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : NULL REMARK 3 BIN R VALUE (WORKING SET) : 0.2360 REMARK 3 BIN FREE R VALUE : 0.2170 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 BIN FREE R VALUE TEST SET COUNT : 1697 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : 0.006 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 4017 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 45 REMARK 3 SOLVENT ATOMS : 172 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 42.90 REMARK 3 MEAN B VALUE (OVERALL, A**2) : NULL 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 COORDINATE ERROR. REMARK 3 ESD FROM LUZZATI PLOT (A) : 0.30 REMARK 3 ESD FROM SIGMAA (A) : 0.29 REMARK 3 LOW RESOLUTION CUTOFF (A) : 5.00 REMARK 3 REMARK 3 CROSS-VALIDATED ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM C-V LUZZATI PLOT (A) : 0.34 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.32 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.016 REMARK 3 BOND ANGLES (DEGREES) : 1.500 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 24.70 REMARK 3 IMPROPER ANGLES (DEGREES) : 1.160 REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : 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 BULK SOLVENT MODELING. REMARK 3 METHOD USED : NULL REMARK 3 KSOL : NULL REMARK 3 BSOL : NULL REMARK 3 REMARK 3 NCS MODEL : NULL REMARK 3 REMARK 3 NCS RESTRAINTS. RMS SIGMA/WEIGHT REMARK 3 GROUP 1 POSITIONAL (A) : NULL ; NULL REMARK 3 GROUP 1 B-FACTOR (A**2) : NULL ; NULL REMARK 3 REMARK 3 PARAMETER FILE 1 : NULL REMARK 3 TOPOLOGY FILE 1 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: REMARK 3 THE OCCUPANCY OF IONS IN THIS MODEL WERE SET TO 1. PLEASE REFER TO REMARK 3 THE PRIMARY CITATION REMARK 3 FOR A DETAILED ANALYSIS OF ION OCCUPANCY. REMARK 4 REMARK 4 1R3I COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 20-OCT-03. REMARK 100 THE DEPOSITION ID IS D_1000020391. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 17-JUN-01 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 5.4 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : NSLS REMARK 200 BEAMLINE : X25 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.1 REMARK 200 MONOCHROMATOR : SI 111 REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : BRANDEIS - B4 REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 33943 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.400 REMARK 200 RESOLUTION RANGE LOW (A) : 30.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.1 REMARK 200 DATA REDUNDANCY : 3.400 REMARK 200 R MERGE (I) : 0.07400 REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 15.2000 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) : 2.50 REMARK 200 COMPLETENESS FOR SHELL (%) : 93.7 REMARK 200 DATA REDUNDANCY IN SHELL : 2.50 REMARK 200 R MERGE FOR SHELL (I) : 0.32600 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 <I/SIGMA(I)> FOR SHELL : 2.600 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: CNS REMARK 200 STARTING MODEL: 1K4C REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 67.91 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 3.83 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PEG400, SODIUM ACETATE, MAGNESIUM REMARK 280 ACETATE, PH 5.4, VAPOR DIFFUSION, SITTING DROP, 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 77.92000 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 77.92000 REMARK 290 SMTRY3 5 0.000000 0.000000 1.000000 37.93500 REMARK 290 SMTRY1 6 -1.000000 0.000000 0.000000 77.92000 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 77.92000 REMARK 290 SMTRY3 6 0.000000 0.000000 1.000000 37.93500 REMARK 290 SMTRY1 7 0.000000 -1.000000 0.000000 77.92000 REMARK 290 SMTRY2 7 1.000000 0.000000 0.000000 77.92000 REMARK 290 SMTRY3 7 0.000000 0.000000 1.000000 37.93500 REMARK 290 SMTRY1 8 0.000000 1.000000 0.000000 77.92000 REMARK 290 SMTRY2 8 -1.000000 0.000000 0.000000 77.92000 REMARK 290 SMTRY3 8 0.000000 0.000000 1.000000 37.93500 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 REMARK: HOMO-TETRAMER OF KCSA IS GENERATED BY FOUR FOLD AXIS: REMARK 300 X,Y,Z REMARK 300 -X,-Y,Z REMARK 300 -X,Y,Z REMARK 300 X,-Y,Z 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 APPLY THE FOLLOWING TO CHAINS: L, H, 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 BIOMT1 2 0.000000 1.000000 0.000000 0.00000 REMARK 350 BIOMT2 2 -1.000000 0.000000 0.000000 311.68000 REMARK 350 BIOMT3 2 0.000000 0.000000 1.000000 0.00000 REMARK 350 BIOMT1 3 0.000000 -1.000000 0.000000 311.68000 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 -1.000000 0.000000 0.000000 311.68000 REMARK 350 BIOMT2 4 0.000000 -1.000000 0.000000 311.68000 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 RB RB C 201 LIES ON A SPECIAL POSITION. REMARK 375 RB RB C 202 LIES ON A SPECIAL POSITION. REMARK 375 RB RB C 203 LIES ON A SPECIAL POSITION. REMARK 375 RB RB C 204 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 C 1 REMARK 465 ALA C 2 REMARK 465 PRO C 3 REMARK 465 MET C 4 REMARK 465 LEU C 5 REMARK 465 SER C 6 REMARK 465 GLY C 7 REMARK 465 LEU C 8 REMARK 465 LEU C 9 REMARK 465 ALA C 10 REMARK 465 ARG C 11 REMARK 465 LEU C 12 REMARK 465 VAL C 13 REMARK 465 LYS C 14 REMARK 465 LEU C 15 REMARK 465 LEU C 16 REMARK 465 LEU C 17 REMARK 465 GLY C 18 REMARK 465 ARG C 19 REMARK 465 HIS C 20 REMARK 465 GLY C 21 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 ASN L 212 CG OD1 ND2 REMARK 470 LYS H 23 CG CD CE NZ REMARK 470 LYS H 63 CG CD CE NZ REMARK 470 GLN H 65 CG CD OE1 NE2 REMARK 470 LYS H 74 CG CD CE NZ REMARK 470 GLU H 89 CG CD OE1 OE2 REMARK 470 LYS H 120 CG CD CE NZ REMARK 470 GLN H 136 CG CD OE1 NE2 REMARK 470 THR H 137 OG1 CG2 REMARK 470 ASN H 138 CG OD1 ND2 REMARK 470 SER H 165 OG REMARK 470 SER H 166 OG REMARK 470 SER H 177 OG REMARK 470 ASP H 178 CG OD1 OD2 REMARK 470 ASP H 219 CG OD1 OD2 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: 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 ALA L 51 -28.49 67.95 REMARK 500 SER L 52 -1.71 -148.53 REMARK 500 SER L 77 72.62 49.63 REMARK 500 ALA L 84 -173.37 178.10 REMARK 500 ASP L 170 10.22 -144.39 REMARK 500 ARG L 188 46.74 -97.61 REMARK 500 ASN L 190 -71.35 -89.66 REMARK 500 LYS L 199 -39.58 -32.95 REMARK 500 VAL H 2 109.87 -40.38 REMARK 500 ALA H 92 -178.93 179.63 REMARK 500 ARG H 100 27.25 -78.92 REMARK 500 ASN H 138 -159.12 -109.01 REMARK 500 PHE H 151 138.36 -171.55 REMARK 500 REMARK 500 REMARK: NULL REMARK 610 REMARK 610 MISSING HETEROATOM REMARK 610 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (M=MODEL NUMBER; REMARK 610 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; REMARK 610 I=INSERTION CODE): REMARK 610 M RES C SSEQI REMARK 610 DGA C 301 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 RB C 202 RB REMARK 620 N RES CSSEQI ATOM REMARK 620 1 THR C 75 O REMARK 620 2 THR C 75 O 67.7 REMARK 620 3 THR C 75 O 67.3 103.1 REMARK 620 4 THR C 75 O 103.1 67.2 66.9 REMARK 620 5 VAL C 76 O 68.6 78.4 131.1 144.8 REMARK 620 6 VAL C 76 O 131.2 68.2 143.5 77.5 83.3 REMARK 620 7 VAL C 76 O 78.1 145.2 67.8 129.7 83.4 138.7 REMARK 620 8 VAL C 76 O 143.9 129.9 77.2 67.4 138.7 82.4 82.4 REMARK 620 9 RB C 203 RB 51.6 51.9 51.2 51.5 111.4 110.9 110.4 109.9 REMARK 620 N 1 2 3 4 5 6 7 8 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 RB C 203 RB REMARK 620 N RES CSSEQI ATOM REMARK 620 1 THR C 75 O REMARK 620 2 THR C 75 OG1 61.5 REMARK 620 3 THR C 75 OG1 102.9 79.6 REMARK 620 4 THR C 75 O 69.0 105.4 61.1 REMARK 620 5 THR C 75 OG1 106.2 80.1 130.3 168.5 REMARK 620 6 THR C 75 O 69.4 103.7 167.8 106.8 61.8 REMARK 620 7 THR C 75 OG1 168.0 130.3 79.5 102.8 80.1 106.1 REMARK 620 8 THR C 75 O 106.8 168.3 105.3 68.9 103.7 69.4 61.4 REMARK 620 N 1 2 3 4 5 6 7 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 RB C 201 RB REMARK 620 N RES CSSEQI ATOM REMARK 620 1 GLY C 77 O REMARK 620 2 GLY C 77 O 75.0 REMARK 620 3 GLY C 77 O 74.7 118.7 REMARK 620 4 GLY C 77 O 118.7 75.2 74.9 REMARK 620 5 TYR C 78 O 68.6 79.9 132.4 150.4 REMARK 620 6 TYR C 78 O 133.0 68.9 150.0 80.0 76.3 REMARK 620 7 TYR C 78 O 79.5 149.8 68.3 132.5 75.9 121.2 REMARK 620 8 TYR C 78 O 149.4 133.1 79.5 68.7 121.2 76.2 75.9 REMARK 620 N 1 2 3 4 5 6 7 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 RB C 204 RB REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HOH C 302 O REMARK 620 2 HOH C 302 O 69.9 REMARK 620 3 HOH C 302 O 70.0 108.3 REMARK 620 4 HOH C 302 O 108.3 69.8 69.9 REMARK 620 5 HOH C 306 O 75.9 140.6 76.6 141.7 REMARK 620 6 HOH C 306 O 141.6 76.4 140.4 75.6 125.3 REMARK 620 7 HOH C 306 O 140.7 141.5 75.8 76.4 77.9 77.7 REMARK 620 8 HOH C 306 O 76.5 75.7 141.8 140.4 77.9 77.7 125.3 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 RB C 201 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE RB C 202 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE RB C 203 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE DGA C 301 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC5 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE F09 H 401 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1K4C RELATED DB: PDB REMARK 900 POTASSIUM CHANNEL KCSA-FAB COMPLEX IN HIGH CONCENTRATION OF K+ REMARK 900 RELATED ID: 1K4D RELATED DB: PDB REMARK 900 POTASSIUM CHANNEL KCSA-FAB COMPLEX IN LOW CONCENTRATION OF K+ REMARK 900 RELATED ID: 1R3J RELATED DB: PDB REMARK 900 POTASSIUM CHANNEL KCSA-FAB COMPLEX IN HIGH CONCENTRATION OF TL+ REMARK 900 RELATED ID: 1R3K RELATED DB: PDB REMARK 900 POTASSIUM CHANNEL KCSA-FAB COMPLEX IN LOW CONCENTRATION OF TL+ REMARK 900 RELATED ID: 1R3L RELATED DB: PDB REMARK 900 POTASSIUM CHANNEL KCSA-FAB COMPLEX IN CS+ DBREF 1R3I C 1 124 UNP P0A334 KCSA_STRLI 1 124 DBREF 1R3I L 1 212 PDB 1R3I 1R3I 1 212 DBREF 1R3I H 1 219 PDB 1R3I 1R3I 1 219 SEQADV 1R3I ALA C 2 UNP P0A334 PRO 2 ENGINEERED MUTATION SEQADV 1R3I CYS C 90 UNP P0A334 LEU 90 ENGINEERED MUTATION SEQRES 1 L 212 ASP ILE LEU LEU THR GLN SER PRO ALA ILE LEU SER VAL SEQRES 2 L 212 SER PRO GLY GLU ARG VAL SER PHE SER CYS ARG ALA SER SEQRES 3 L 212 GLN SER ILE GLY THR ASP ILE HIS TRP TYR GLN GLN ARG SEQRES 4 L 212 THR ASN GLY SER PRO ARG LEU LEU ILE LYS TYR ALA SER SEQRES 5 L 212 GLU SER ILE SER GLY ILE PRO SER ARG PHE SER GLY SER SEQRES 6 L 212 GLY SER GLY THR ASP PHE THR LEU SER ILE ASN SER VAL SEQRES 7 L 212 GLU SER GLU ASP ILE ALA ASN TYR TYR CYS GLN GLN SER SEQRES 8 L 212 ASN ARG TRP PRO PHE THR PHE GLY SER GLY THR LYS LEU SEQRES 9 L 212 GLU ILE LYS ARG ALA ASP ALA ALA PRO THR VAL SER ILE SEQRES 10 L 212 PHE PRO PRO SER SER GLU GLN LEU THR SER GLY GLY ALA SEQRES 11 L 212 SER VAL VAL CYS PHE LEU ASN ASN PHE TYR PRO LYS ASP SEQRES 12 L 212 ILE ASN VAL LYS TRP LYS ILE ASP GLY SER GLU ARG GLN SEQRES 13 L 212 ASN GLY VAL LEU ASN SER TRP THR ASP GLN ASP SER LYS SEQRES 14 L 212 ASP SER THR TYR SER MET SER SER THR LEU THR LEU THR SEQRES 15 L 212 LYS ASP GLU TYR GLU ARG HIS ASN SER TYR THR CYS GLU SEQRES 16 L 212 ALA THR HIS LYS THR SER THR SER PRO ILE VAL LYS SER SEQRES 17 L 212 PHE ASN ARG ASN SEQRES 1 H 219 GLN VAL GLN LEU GLN GLN PRO GLY ALA GLU LEU VAL LYS SEQRES 2 H 219 PRO GLY ALA SER VAL LYS LEU SER CYS LYS ALA SER GLY SEQRES 3 H 219 TYR THR PHE THR SER ASP TRP ILE HIS TRP VAL LYS GLN SEQRES 4 H 219 ARG PRO GLY HIS GLY LEU GLU TRP ILE GLY GLU ILE ILE SEQRES 5 H 219 PRO SER TYR GLY ARG ALA ASN TYR ASN GLU LYS ILE GLN SEQRES 6 H 219 LYS LYS ALA THR LEU THR ALA ASP LYS SER SER SER THR SEQRES 7 H 219 ALA PHE MET GLN LEU SER SER LEU THR SER GLU ASP SER SEQRES 8 H 219 ALA VAL TYR TYR CYS ALA ARG GLU ARG GLY ASP GLY TYR SEQRES 9 H 219 PHE ALA VAL TRP GLY ALA GLY THR THR VAL THR VAL SER SEQRES 10 H 219 SER ALA LYS THR THR PRO PRO SER VAL TYR PRO LEU ALA SEQRES 11 H 219 PRO GLY SER ALA ALA GLN THR ASN SER MET VAL THR LEU SEQRES 12 H 219 GLY CYS LEU VAL LYS GLY TYR PHE PRO GLU PRO VAL THR SEQRES 13 H 219 VAL THR TRP ASN SER GLY SER LEU SER SER GLY VAL HIS SEQRES 14 H 219 THR PHE PRO ALA VAL LEU GLN SER ASP LEU TYR THR LEU SEQRES 15 H 219 SER SER SER VAL THR VAL PRO SER SER SER TRP PRO SER SEQRES 16 H 219 GLU THR VAL THR CYS ASN VAL ALA HIS PRO ALA SER SER SEQRES 17 H 219 THR LYS VAL ASP LYS LYS ILE VAL PRO ARG ASP SEQRES 1 C 124 MET ALA PRO MET LEU SER GLY LEU LEU ALA ARG LEU VAL SEQRES 2 C 124 LYS LEU LEU LEU GLY ARG HIS GLY SER ALA LEU HIS TRP SEQRES 3 C 124 ARG ALA ALA GLY ALA ALA THR VAL LEU LEU VAL ILE VAL SEQRES 4 C 124 LEU LEU ALA GLY SER TYR LEU ALA VAL LEU ALA GLU ARG SEQRES 5 C 124 GLY ALA PRO GLY ALA GLN LEU ILE THR TYR PRO ARG ALA SEQRES 6 C 124 LEU TRP TRP SER VAL GLU THR ALA THR THR VAL GLY TYR SEQRES 7 C 124 GLY ASP LEU TYR PRO VAL THR LEU TRP GLY ARG CYS VAL SEQRES 8 C 124 ALA VAL VAL VAL MET VAL ALA GLY ILE THR SER PHE GLY SEQRES 9 C 124 LEU VAL THR ALA ALA LEU ALA THR TRP PHE VAL GLY ARG SEQRES 10 C 124 GLU GLN GLU ARG ARG GLY HIS HET F09 H 401 10 HET RB C 201 1 HET RB C 202 1 HET RB C 203 1 HET RB C 204 1 HET DGA C 301 31 HETNAM F09 NONAN-1-OL HETNAM RB RUBIDIUM ION HETNAM DGA DIACYL GLYCEROL FORMUL 4 F09 C9 H20 O FORMUL 5 RB 4(RB 1+) FORMUL 9 DGA C39 H76 O5 FORMUL 10 HOH *172(H2 O) HELIX 1 1 GLU L 79 ILE L 83 5 5 HELIX 2 2 SER L 121 THR L 126 1 6 HELIX 3 3 LYS L 183 ARG L 188 1 6 HELIX 4 4 THR H 87 SER H 91 5 5 HELIX 5 5 SER H 191 TRP H 193 5 3 HELIX 6 6 PRO H 205 SER H 208 5 4 HELIX 7 7 ALA C 23 ARG C 52 1 30 HELIX 8 8 THR C 61 THR C 74 1 14 HELIX 9 9 THR C 85 ARG C 121 1 37 SHEET 1 A 4 LEU L 4 THR L 5 0 SHEET 2 A 4 VAL L 19 ALA L 25 -1 O ARG L 24 N THR L 5 SHEET 3 A 4 ASP L 70 ILE L 75 -1 O LEU L 73 N PHE L 21 SHEET 4 A 4 PHE L 62 SER L 67 -1 N SER L 63 O SER L 74 SHEET 1 B 5 ILE L 10 VAL L 13 0 SHEET 2 B 5 THR L 102 ILE L 106 1 O GLU L 105 N VAL L 13 SHEET 3 B 5 ASN L 85 GLN L 90 -1 N TYR L 86 O THR L 102 SHEET 4 B 5 ILE L 33 GLN L 38 -1 N TYR L 36 O TYR L 87 SHEET 5 B 5 ARG L 45 ILE L 48 -1 O LEU L 47 N TRP L 35 SHEET 1 C 4 ILE L 10 VAL L 13 0 SHEET 2 C 4 THR L 102 ILE L 106 1 O GLU L 105 N VAL L 13 SHEET 3 C 4 ASN L 85 GLN L 90 -1 N TYR L 86 O THR L 102 SHEET 4 C 4 THR L 97 PHE L 98 -1 O THR L 97 N GLN L 90 SHEET 1 D 4 THR L 114 PHE L 118 0 SHEET 2 D 4 GLY L 129 PHE L 139 -1 O VAL L 133 N PHE L 118 SHEET 3 D 4 TYR L 173 THR L 182 -1 O MET L 175 N LEU L 136 SHEET 4 D 4 VAL L 159 TRP L 163 -1 N LEU L 160 O THR L 178 SHEET 1 E 4 SER L 153 ARG L 155 0 SHEET 2 E 4 ASN L 145 ILE L 150 -1 N TRP L 148 O ARG L 155 SHEET 3 E 4 SER L 191 THR L 197 -1 O THR L 197 N ASN L 145 SHEET 4 E 4 ILE L 205 ASN L 210 -1 O ILE L 205 N ALA L 196 SHEET 1 F 4 LEU H 4 GLN H 5 0 SHEET 2 F 4 VAL H 18 ALA H 24 -1 O LYS H 23 N GLN H 5 SHEET 3 F 4 THR H 78 LEU H 83 -1 O ALA H 79 N CYS H 22 SHEET 4 F 4 LEU H 70 ASP H 73 -1 N ASP H 73 O THR H 78 SHEET 1 G 6 ALA H 9 VAL H 12 0 SHEET 2 G 6 THR H 112 VAL H 116 1 O THR H 115 N VAL H 12 SHEET 3 G 6 ALA H 92 GLU H 99 -1 N ALA H 92 O VAL H 114 SHEET 4 G 6 TRP H 33 GLN H 39 -1 N HIS H 35 O ALA H 97 SHEET 5 G 6 GLU H 46 ILE H 51 -1 O GLU H 46 N LYS H 38 SHEET 6 G 6 ALA H 58 TYR H 60 -1 O ASN H 59 N GLU H 50 SHEET 1 H 4 ALA H 9 VAL H 12 0 SHEET 2 H 4 THR H 112 VAL H 116 1 O THR H 115 N VAL H 12 SHEET 3 H 4 ALA H 92 GLU H 99 -1 N ALA H 92 O VAL H 114 SHEET 4 H 4 PHE H 105 TRP H 108 -1 O VAL H 107 N ARG H 98 SHEET 1 I 4 SER H 125 LEU H 129 0 SHEET 2 I 4 MET H 140 TYR H 150 -1 O LEU H 146 N TYR H 127 SHEET 3 I 4 TYR H 180 PRO H 189 -1 O TYR H 180 N TYR H 150 SHEET 4 I 4 VAL H 168 THR H 170 -1 N HIS H 169 O SER H 185 SHEET 1 J 4 SER H 125 LEU H 129 0 SHEET 2 J 4 MET H 140 TYR H 150 -1 O LEU H 146 N TYR H 127 SHEET 3 J 4 TYR H 180 PRO H 189 -1 O TYR H 180 N TYR H 150 SHEET 4 J 4 VAL H 174 LEU H 175 -1 N VAL H 174 O THR H 181 SHEET 1 K 3 THR H 156 TRP H 159 0 SHEET 2 K 3 THR H 199 HIS H 204 -1 O ASN H 201 N THR H 158 SHEET 3 K 3 THR H 209 LYS H 214 -1 O THR H 209 N HIS H 204 SSBOND 1 CYS L 23 CYS L 88 1555 1555 2.74 SSBOND 2 CYS H 22 CYS H 96 1555 1555 2.59 LINK O THR C 75 RB RB C 202 1555 1555 3.13 LINK O THR C 75 RB RB C 202 4575 1555 3.13 LINK O THR C 75 RB RB C 202 3755 1555 3.16 LINK O THR C 75 RB RB C 202 2775 1555 3.16 LINK O THR C 75 RB RB C 203 1555 1555 3.07 LINK OG1 THR C 75 RB RB C 203 1555 1555 3.03 LINK OG1 THR C 75 RB RB C 203 4575 1555 3.05 LINK O THR C 75 RB RB C 203 4575 1555 3.09 LINK OG1 THR C 75 RB RB C 203 3755 1555 3.02 LINK O THR C 75 RB RB C 203 3755 1555 3.05 LINK OG1 THR C 75 RB RB C 203 2775 1555 3.04 LINK O THR C 75 RB RB C 203 2775 1555 3.07 LINK O VAL C 76 RB RB C 202 1555 1555 2.88 LINK O VAL C 76 RB RB C 202 4575 1555 2.91 LINK O VAL C 76 RB RB C 202 3755 1555 2.91 LINK O VAL C 76 RB RB C 202 2775 1555 2.94 LINK O GLY C 77 RB RB C 201 1555 1555 3.10 LINK O GLY C 77 RB RB C 201 4575 1555 3.09 LINK O GLY C 77 RB RB C 201 3755 1555 3.11 LINK O GLY C 77 RB RB C 201 2775 1555 3.09 LINK O TYR C 78 RB RB C 201 1555 1555 3.06 LINK O TYR C 78 RB RB C 201 4575 1555 3.05 LINK O TYR C 78 RB RB C 201 3755 1555 3.07 LINK O TYR C 78 RB RB C 201 2775 1555 3.06 LINK RB RB C 202 RB RB C 203 1555 1555 3.79 LINK RB RB C 202 RB RB C 203 1555 2775 3.79 LINK RB RB C 202 RB RB C 203 1555 3755 3.79 LINK RB RB C 202 RB RB C 203 1555 4575 3.79 LINK RB RB C 204 O HOH C 302 1555 1555 3.57 LINK RB RB C 204 O HOH C 302 1555 3755 3.58 LINK RB RB C 204 O HOH C 302 1555 4575 3.57 LINK RB RB C 204 O HOH C 302 1555 2775 3.58 LINK RB RB C 204 O HOH C 306 1555 1555 3.60 LINK RB RB C 204 O HOH C 306 1555 2775 3.62 LINK RB RB C 204 O HOH C 306 1555 4575 3.61 LINK RB RB C 204 O HOH C 306 1555 3755 3.61 CISPEP 1 SER L 7 PRO L 8 0 0.02 CISPEP 2 TRP L 94 PRO L 95 0 -0.36 CISPEP 3 TYR L 140 PRO L 141 0 -0.03 CISPEP 4 PHE H 151 PRO H 152 0 -0.54 CISPEP 5 GLU H 153 PRO H 154 0 -0.55 CISPEP 6 TRP H 193 PRO H 194 0 -0.21 SITE 1 AC1 2 GLY C 77 TYR C 78 SITE 1 AC2 2 THR C 75 VAL C 76 SITE 1 AC3 1 THR C 75 SITE 1 AC4 7 TYR C 45 PRO C 63 LEU C 86 ARG C 89 SITE 2 AC4 7 VAL C 93 HOH C 315 GLU L 53 SITE 1 AC5 2 TRP C 87 ARG H 57 CRYST1 155.840 155.840 75.870 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 0.006417 0.000000 0.000000 0.00000 SCALE2 0.000000 0.006417 0.000000 0.00000 SCALE3 0.000000 0.000000 0.013180 0.00000