HEADER MEMBRANE PROTEIN 02-OCT-03 1R3L TITLE POTASSIUM CHANNEL KCSA-FAB COMPLEX IN CS+ COMPND MOL_ID: 1; COMPND 2 MOLECULE: ANTIBODY FAB FRAGMENT LIGHT CHAIN; COMPND 3 CHAIN: A; COMPND 4 MOL_ID: 2; COMPND 5 MOLECULE: ANTIBODY FAB FRAGMENT HEAVY CHAIN; COMPND 6 CHAIN: B; 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, CESIUM EXPDTA X-RAY DIFFRACTION AUTHOR Y.ZHOU,R.MACKINNON REVDAT 6 30-OCT-24 1R3L 1 REMARK REVDAT 5 23-AUG-23 1R3L 1 REMARK REVDAT 4 27-OCT-21 1R3L 1 REMARK SEQADV LINK REVDAT 3 16-NOV-11 1R3L 1 VERSN HETATM REVDAT 2 24-FEB-09 1R3L 1 VERSN REVDAT 1 25-NOV-03 1R3L 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. 2.41 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CNS 1.1 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) : 2.41 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 26.57 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) (%) : 98.5 REMARK 3 NUMBER OF REFLECTIONS : 34260 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) : 0.219 REMARK 3 FREE R VALUE : 0.249 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.000 REMARK 3 FREE R VALUE TEST SET COUNT : 1709 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : 0.006 REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : 6 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 2.40 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.55 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 88.50 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 4892 REMARK 3 BIN R VALUE (WORKING SET) : 0.3090 REMARK 3 BIN FREE R VALUE : 0.3010 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 4.90 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 250 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : 0.019 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 3994 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 41 REMARK 3 SOLVENT ATOMS : 193 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 51.20 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 52.10 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 0.84000 REMARK 3 B22 (A**2) : 0.84000 REMARK 3 B33 (A**2) : -1.68000 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 COORDINATE ERROR. REMARK 3 ESD FROM LUZZATI PLOT (A) : NULL REMARK 3 ESD FROM SIGMAA (A) : NULL REMARK 3 LOW RESOLUTION CUTOFF (A) : NULL REMARK 3 REMARK 3 CROSS-VALIDATED ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM C-V LUZZATI PLOT (A) : 0.37 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.37 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.007 REMARK 3 BOND ANGLES (DEGREES) : 1.300 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 25.40 REMARK 3 IMPROPER ANGLES (DEGREES) : 0.830 REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : RESTRAINED 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 : FLAT MODEL REMARK 3 KSOL : 0.33 REMARK 3 BSOL : 45.17 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 : PROTEIN_REP.PARAM REMARK 3 PARAMETER FILE 2 : WATER_REP.PARAM REMARK 3 PARAMETER FILE 3 : 2002LIP.PAR REMARK 3 PARAMETER FILE 4 : ION.PARAM REMARK 3 PARAMETER FILE 5 : NULL REMARK 3 TOPOLOGY FILE 1 : PROTEIN.TOP REMARK 3 TOPOLOGY FILE 2 : WATER.TOP REMARK 3 TOPOLOGY FILE 3 : 2002LIP.TOP REMARK 3 TOPOLOGY FILE 4 : ION.TOP REMARK 3 TOPOLOGY FILE 5 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: REMARK 3 THE OCCUPANCY OF IONS IN THIS MODEL WERE SET TO 1. PLEASE REFER REMARK 3 TO THE PRIMARY CITATION FOR A DETAILED ANALYSIS OF ION OCCUPANCY. REMARK 4 REMARK 4 1R3L COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 10-NOV-03. REMARK 100 THE DEPOSITION ID IS D_1000020394. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 25-APR-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 : 34694 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 (%) : 98.8 REMARK 200 DATA REDUNDANCY : NULL REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : NULL 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 (%) : 94.7 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: CNS REMARK 200 STARTING MODEL: 1K4C REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 67.36 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 3.77 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 77.45500 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 77.45500 REMARK 290 SMTRY3 5 0.000000 0.000000 1.000000 37.74500 REMARK 290 SMTRY1 6 -1.000000 0.000000 0.000000 77.45500 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 77.45500 REMARK 290 SMTRY3 6 0.000000 0.000000 1.000000 37.74500 REMARK 290 SMTRY1 7 0.000000 -1.000000 0.000000 77.45500 REMARK 290 SMTRY2 7 1.000000 0.000000 0.000000 77.45500 REMARK 290 SMTRY3 7 0.000000 0.000000 1.000000 37.74500 REMARK 290 SMTRY1 8 0.000000 1.000000 0.000000 77.45500 REMARK 290 SMTRY2 8 -1.000000 0.000000 0.000000 77.45500 REMARK 290 SMTRY3 8 0.000000 0.000000 1.000000 37.74500 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: 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 BIOMT1 2 -1.000000 0.000000 0.000000 309.82000 REMARK 350 BIOMT2 2 0.000000 -1.000000 0.000000 309.82000 REMARK 350 BIOMT3 2 0.000000 0.000000 1.000000 0.00000 REMARK 350 BIOMT1 3 0.000000 -1.000000 0.000000 309.82000 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 309.82000 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 CS CS C 201 LIES ON A SPECIAL POSITION. REMARK 375 CS CS C 202 LIES ON A SPECIAL POSITION. REMARK 375 CS CS C 203 LIES ON A SPECIAL POSITION. REMARK 375 CS CS C 204 LIES ON A SPECIAL POSITION. REMARK 375 CS CS C 205 LIES ON A SPECIAL POSITION. REMARK 375 HOH C 303 LIES ON A SPECIAL POSITION. REMARK 375 HOH C 308 LIES ON A SPECIAL POSITION. REMARK 375 HOH C 313 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 GLU A 17 CG CD OE1 OE2 REMARK 470 LYS A 103 CG CD CE NZ REMARK 470 LYS A 107 CG CD CE NZ REMARK 470 ASN A 212 CG OD1 ND2 REMARK 470 LYS B 23 CG CD CE NZ REMARK 470 THR B 30 OG1 CG2 REMARK 470 LYS B 63 CG CD CE NZ REMARK 470 GLN B 65 CG CD OE1 NE2 REMARK 470 LYS B 74 CG CD CE NZ REMARK 470 GLU B 89 CG CD OE1 OE2 REMARK 470 LYS B 120 CG CD CE NZ REMARK 470 GLN B 136 CG CD OE1 NE2 REMARK 470 THR B 137 OG1 CG2 REMARK 470 ASN B 138 CG OD1 ND2 REMARK 470 SER B 165 OG REMARK 470 SER B 166 OG REMARK 470 SER B 177 OG REMARK 470 ASP B 178 CG OD1 OD2 REMARK 470 GLU B 196 CG CD OE1 OE2 REMARK 470 LYS B 213 CG CD CE NZ REMARK 470 ASP B 219 CG OD1 OD2 REMARK 470 SER C 22 OG REMARK 470 ARG C 27 CG CD NE CZ NH1 NH2 REMARK 470 ARG C 117 CG CD NE CZ NH1 NH2 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 ASN A 41 -8.91 71.59 REMARK 500 ALA A 51 -38.92 66.22 REMARK 500 SER A 52 -1.22 -140.18 REMARK 500 SER A 77 74.19 65.20 REMARK 500 ALA A 84 -176.50 176.88 REMARK 500 ASP A 170 17.86 -144.04 REMARK 500 ARG A 188 34.26 -95.29 REMARK 500 ASN A 190 -68.37 -94.54 REMARK 500 LYS A 199 -37.64 -31.28 REMARK 500 ARG A 211 7.46 -61.32 REMARK 500 ALA B 92 -177.37 175.02 REMARK 500 ARG B 100 21.63 -78.46 REMARK 500 ASN B 138 -151.11 -121.09 REMARK 500 PRO B 154 -167.31 -110.40 REMARK 500 REMARK 500 REMARK: NULL REMARK 600 REMARK 600 HETEROGEN REMARK 600 THE LIGAND DGA IS A PARTIAL LIPID. 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 CS C 202 CS REMARK 620 N RES CSSEQI ATOM REMARK 620 1 THR C 75 O REMARK 620 2 THR C 75 O 60.9 REMARK 620 3 THR C 75 O 60.9 91.6 REMARK 620 4 THR C 75 O 91.6 60.9 60.9 REMARK 620 5 VAL C 76 O 65.2 72.2 124.7 133.1 REMARK 620 6 VAL C 76 O 124.7 65.2 133.1 72.2 87.9 REMARK 620 7 VAL C 76 O 72.2 133.1 65.2 124.7 87.9 158.2 REMARK 620 8 VAL C 76 O 133.1 124.7 72.2 65.2 158.2 87.9 87.9 REMARK 620 N 1 2 3 4 5 6 7 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CS C 203 CS REMARK 620 N RES CSSEQI ATOM REMARK 620 1 THR C 75 O REMARK 620 2 THR C 75 OG1 64.1 REMARK 620 3 THR C 75 O 68.3 103.2 REMARK 620 4 THR C 75 OG1 108.4 78.5 64.1 REMARK 620 5 THR C 75 O 68.3 108.4 105.0 168.7 REMARK 620 6 THR C 75 OG1 103.2 78.5 168.7 126.9 64.1 REMARK 620 7 THR C 75 O 105.0 168.7 68.3 103.2 68.3 108.4 REMARK 620 8 THR C 75 OG1 168.7 126.9 108.4 78.5 103.2 78.5 64.1 REMARK 620 9 CS C 204 CS 127.5 63.4 127.5 63.4 127.5 63.4 127.5 63.4 REMARK 620 N 1 2 3 4 5 6 7 8 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CS C 204 CS REMARK 620 N RES CSSEQI ATOM REMARK 620 1 THR C 75 OG1 REMARK 620 2 THR C 75 OG1 64.2 REMARK 620 3 THR C 75 OG1 64.2 97.5 REMARK 620 4 THR C 75 OG1 97.5 64.2 64.2 REMARK 620 5 CS C 205 CS 131.3 131.3 131.3 131.3 REMARK 620 6 CS C 205 CS 131.3 131.3 131.3 131.3 0.0 REMARK 620 7 CS C 205 CS 131.3 131.3 131.3 131.3 0.0 0.0 REMARK 620 8 CS C 205 CS 131.3 131.3 131.3 131.3 0.0 0.0 0.0 REMARK 620 9 HOH C 324 O 70.0 102.0 114.5 165.0 61.8 61.8 61.8 61.8 REMARK 620 N 1 2 3 4 5 6 7 8 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CS C 201 CS REMARK 620 N RES CSSEQI ATOM REMARK 620 1 GLY C 77 O REMARK 620 2 GLY C 77 O 77.0 REMARK 620 3 GLY C 77 O 77.0 123.4 REMARK 620 4 GLY C 77 O 123.4 77.0 77.0 REMARK 620 5 TYR C 78 O 65.8 75.9 133.0 148.0 REMARK 620 6 TYR C 78 O 133.0 65.8 148.0 75.9 77.7 REMARK 620 7 TYR C 78 O 75.9 148.0 65.8 133.0 77.7 125.0 REMARK 620 8 TYR C 78 O 148.0 133.0 75.9 65.8 125.0 77.7 77.7 REMARK 620 N 1 2 3 4 5 6 7 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CS C 205 CS REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HOH C 324 O REMARK 620 2 HOH C 324 O 75.4 REMARK 620 3 HOH C 324 O 75.4 119.8 REMARK 620 4 HOH C 324 O 119.8 75.4 75.4 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 CS C 201 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CS C 202 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CS C 203 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CS C 204 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC5 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CS C 205 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC6 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE DGA C 301 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC7 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE F09 B 402 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: 1R3I RELATED DB: PDB REMARK 900 POTASSIUM CHANNEL KCSA-FAB COMPLEX IN RB+ 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 999 REMARK 999 SEQUENCE REMARK 999 NO SUITABLE DATABASE REFERENCE SEQUENCE WAS FOUND REMARK 999 FOR CHAINS A AND B AT THE TIME OF PROCESSING. DBREF 1R3L C 1 124 UNP P0A334 KCSA_STRLI 1 124 DBREF 1R3L A 1 212 PDB 1R3L 1R3L 1 212 DBREF 1R3L B 1 219 PDB 1R3L 1R3L 1 219 SEQADV 1R3L ALA C 2 UNP P0A334 PRO 2 ENGINEERED MUTATION SEQADV 1R3L CYS C 90 UNP P0A334 LEU 90 ENGINEERED MUTATION SEQRES 1 A 212 ASP ILE LEU LEU THR GLN SER PRO ALA ILE LEU SER VAL SEQRES 2 A 212 SER PRO GLY GLU ARG VAL SER PHE SER CYS ARG ALA SER SEQRES 3 A 212 GLN SER ILE GLY THR ASP ILE HIS TRP TYR GLN GLN ARG SEQRES 4 A 212 THR ASN GLY SER PRO ARG LEU LEU ILE LYS TYR ALA SER SEQRES 5 A 212 GLU SER ILE SER GLY ILE PRO SER ARG PHE SER GLY SER SEQRES 6 A 212 GLY SER GLY THR ASP PHE THR LEU SER ILE ASN SER VAL SEQRES 7 A 212 GLU SER GLU ASP ILE ALA ASN TYR TYR CYS GLN GLN SER SEQRES 8 A 212 ASN ARG TRP PRO PHE THR PHE GLY SER GLY THR LYS LEU SEQRES 9 A 212 GLU ILE LYS ARG ALA ASP ALA ALA PRO THR VAL SER ILE SEQRES 10 A 212 PHE PRO PRO SER SER GLU GLN LEU THR SER GLY GLY ALA SEQRES 11 A 212 SER VAL VAL CYS PHE LEU ASN ASN PHE TYR PRO LYS ASP SEQRES 12 A 212 ILE ASN VAL LYS TRP LYS ILE ASP GLY SER GLU ARG GLN SEQRES 13 A 212 ASN GLY VAL LEU ASN SER TRP THR ASP GLN ASP SER LYS SEQRES 14 A 212 ASP SER THR TYR SER MET SER SER THR LEU THR LEU THR SEQRES 15 A 212 LYS ASP GLU TYR GLU ARG HIS ASN SER TYR THR CYS GLU SEQRES 16 A 212 ALA THR HIS LYS THR SER THR SER PRO ILE VAL LYS SER SEQRES 17 A 212 PHE ASN ARG ASN SEQRES 1 B 219 GLN VAL GLN LEU GLN GLN PRO GLY ALA GLU LEU VAL LYS SEQRES 2 B 219 PRO GLY ALA SER VAL LYS LEU SER CYS LYS ALA SER GLY SEQRES 3 B 219 TYR THR PHE THR SER ASP TRP ILE HIS TRP VAL LYS GLN SEQRES 4 B 219 ARG PRO GLY HIS GLY LEU GLU TRP ILE GLY GLU ILE ILE SEQRES 5 B 219 PRO SER TYR GLY ARG ALA ASN TYR ASN GLU LYS ILE GLN SEQRES 6 B 219 LYS LYS ALA THR LEU THR ALA ASP LYS SER SER SER THR SEQRES 7 B 219 ALA PHE MET GLN LEU SER SER LEU THR SER GLU ASP SER SEQRES 8 B 219 ALA VAL TYR TYR CYS ALA ARG GLU ARG GLY ASP GLY TYR SEQRES 9 B 219 PHE ALA VAL TRP GLY ALA GLY THR THR VAL THR VAL SER SEQRES 10 B 219 SER ALA LYS THR THR PRO PRO SER VAL TYR PRO LEU ALA SEQRES 11 B 219 PRO GLY SER ALA ALA GLN THR ASN SER MET VAL THR LEU SEQRES 12 B 219 GLY CYS LEU VAL LYS GLY TYR PHE PRO GLU PRO VAL THR SEQRES 13 B 219 VAL THR TRP ASN SER GLY SER LEU SER SER GLY VAL HIS SEQRES 14 B 219 THR PHE PRO ALA VAL LEU GLN SER ASP LEU TYR THR LEU SEQRES 15 B 219 SER SER SER VAL THR VAL PRO SER SER SER TRP PRO SER SEQRES 16 B 219 GLU THR VAL THR CYS ASN VAL ALA HIS PRO ALA SER SER SEQRES 17 B 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 B 402 10 HET CS C 201 1 HET CS C 202 1 HET CS C 203 1 HET CS C 204 1 HET CS C 205 1 HET DGA C 301 26 HETNAM F09 NONAN-1-OL HETNAM CS CESIUM ION HETNAM DGA DIACYL GLYCEROL FORMUL 4 F09 C9 H20 O FORMUL 5 CS 5(CS 1+) FORMUL 10 DGA C39 H76 O5 FORMUL 11 HOH *193(H2 O) HELIX 1 1 GLU A 79 ILE A 83 5 5 HELIX 2 2 SER A 121 SER A 127 1 7 HELIX 3 3 LYS A 183 ARG A 188 1 6 HELIX 4 4 THR B 87 SER B 91 5 5 HELIX 5 5 PRO B 205 SER B 208 5 4 HELIX 6 6 ALA C 23 ARG C 52 1 30 HELIX 7 7 THR C 61 THR C 74 1 14 HELIX 8 8 THR C 85 ARG C 122 1 38 SHEET 1 A 4 LEU A 4 THR A 5 0 SHEET 2 A 4 VAL A 19 ALA A 25 -1 O ARG A 24 N THR A 5 SHEET 3 A 4 ASP A 70 ILE A 75 -1 O LEU A 73 N PHE A 21 SHEET 4 A 4 PHE A 62 SER A 67 -1 N SER A 63 O SER A 74 SHEET 1 B 6 ILE A 10 VAL A 13 0 SHEET 2 B 6 THR A 102 ILE A 106 1 O GLU A 105 N LEU A 11 SHEET 3 B 6 ASN A 85 GLN A 90 -1 N TYR A 86 O THR A 102 SHEET 4 B 6 ILE A 33 GLN A 38 -1 N TYR A 36 O TYR A 87 SHEET 5 B 6 ARG A 45 LYS A 49 -1 O LEU A 47 N TRP A 35 SHEET 6 B 6 GLU A 53 SER A 54 -1 O GLU A 53 N LYS A 49 SHEET 1 C 4 ILE A 10 VAL A 13 0 SHEET 2 C 4 THR A 102 ILE A 106 1 O GLU A 105 N LEU A 11 SHEET 3 C 4 ASN A 85 GLN A 90 -1 N TYR A 86 O THR A 102 SHEET 4 C 4 THR A 97 PHE A 98 -1 O THR A 97 N GLN A 90 SHEET 1 D 4 THR A 114 PHE A 118 0 SHEET 2 D 4 GLY A 129 PHE A 139 -1 O VAL A 133 N PHE A 118 SHEET 3 D 4 TYR A 173 THR A 182 -1 O MET A 175 N LEU A 136 SHEET 4 D 4 VAL A 159 TRP A 163 -1 N LEU A 160 O THR A 178 SHEET 1 E 4 SER A 153 ARG A 155 0 SHEET 2 E 4 ASN A 145 ILE A 150 -1 N ILE A 150 O SER A 153 SHEET 3 E 4 SER A 191 THR A 197 -1 O THR A 197 N ASN A 145 SHEET 4 E 4 ILE A 205 ASN A 210 -1 O ILE A 205 N ALA A 196 SHEET 1 F 4 LEU B 4 GLN B 5 0 SHEET 2 F 4 VAL B 18 ALA B 24 -1 O LYS B 23 N GLN B 5 SHEET 3 F 4 THR B 78 LEU B 83 -1 O LEU B 83 N VAL B 18 SHEET 4 F 4 ALA B 68 ASP B 73 -1 N ASP B 73 O THR B 78 SHEET 1 G 6 ALA B 9 VAL B 12 0 SHEET 2 G 6 THR B 112 VAL B 116 1 O THR B 115 N VAL B 12 SHEET 3 G 6 ALA B 92 GLU B 99 -1 N ALA B 92 O VAL B 114 SHEET 4 G 6 TRP B 33 GLN B 39 -1 N TRP B 33 O GLU B 99 SHEET 5 G 6 GLU B 46 ILE B 51 -1 O ILE B 51 N ILE B 34 SHEET 6 G 6 ALA B 58 TYR B 60 -1 O ASN B 59 N GLU B 50 SHEET 1 H 4 ALA B 9 VAL B 12 0 SHEET 2 H 4 THR B 112 VAL B 116 1 O THR B 115 N VAL B 12 SHEET 3 H 4 ALA B 92 GLU B 99 -1 N ALA B 92 O VAL B 114 SHEET 4 H 4 PHE B 105 TRP B 108 -1 O VAL B 107 N ARG B 98 SHEET 1 I 4 SER B 125 LEU B 129 0 SHEET 2 I 4 MET B 140 TYR B 150 -1 O LEU B 146 N TYR B 127 SHEET 3 I 4 TYR B 180 PRO B 189 -1 O LEU B 182 N VAL B 147 SHEET 4 I 4 VAL B 168 THR B 170 -1 N HIS B 169 O SER B 185 SHEET 1 J 4 SER B 125 LEU B 129 0 SHEET 2 J 4 MET B 140 TYR B 150 -1 O LEU B 146 N TYR B 127 SHEET 3 J 4 TYR B 180 PRO B 189 -1 O LEU B 182 N VAL B 147 SHEET 4 J 4 VAL B 174 LEU B 175 -1 N VAL B 174 O THR B 181 SHEET 1 K 3 THR B 156 TRP B 159 0 SHEET 2 K 3 THR B 199 HIS B 204 -1 O ASN B 201 N THR B 158 SHEET 3 K 3 THR B 209 LYS B 214 -1 O THR B 209 N HIS B 204 SSBOND 1 CYS A 23 CYS A 88 1555 1555 2.69 SSBOND 2 CYS A 134 CYS A 194 1555 1555 2.79 SSBOND 3 CYS B 22 CYS B 96 1555 1555 2.62 LINK O THR C 75 CS CS C 202 1555 1555 3.45 LINK O THR C 75 CS CS C 202 4575 1555 3.45 LINK O THR C 75 CS CS C 202 3755 1555 3.45 LINK O THR C 75 CS CS C 202 2775 1555 3.45 LINK O THR C 75 CS CS C 203 1555 1555 3.12 LINK OG1 THR C 75 CS CS C 203 1555 1555 3.05 LINK O THR C 75 CS CS C 203 4575 1555 3.12 LINK OG1 THR C 75 CS CS C 203 4575 1555 3.05 LINK O THR C 75 CS CS C 203 3755 1555 3.12 LINK OG1 THR C 75 CS CS C 203 3755 1555 3.05 LINK O THR C 75 CS CS C 203 2775 1555 3.12 LINK OG1 THR C 75 CS CS C 203 2775 1555 3.05 LINK OG1 THR C 75 CS CS C 204 1555 1555 3.63 LINK OG1 THR C 75 CS CS C 204 4575 1555 3.63 LINK OG1 THR C 75 CS CS C 204 3755 1555 3.63 LINK OG1 THR C 75 CS CS C 204 2775 1555 3.63 LINK O VAL C 76 CS CS C 202 1555 1555 3.07 LINK O VAL C 76 CS CS C 202 4575 1555 3.07 LINK O VAL C 76 CS CS C 202 3755 1555 3.07 LINK O VAL C 76 CS CS C 202 2775 1555 3.07 LINK O GLY C 77 CS CS C 201 1555 1555 3.15 LINK O GLY C 77 CS CS C 201 4575 1555 3.15 LINK O GLY C 77 CS CS C 201 3755 1555 3.15 LINK O GLY C 77 CS CS C 201 2775 1555 3.15 LINK O TYR C 78 CS CS C 201 1555 1555 3.20 LINK O TYR C 78 CS CS C 201 4575 1555 3.20 LINK O TYR C 78 CS CS C 201 3755 1555 3.20 LINK O TYR C 78 CS CS C 201 2775 1555 3.20 LINK CS CS C 203 CS CS C 204 1555 1555 3.75 LINK CS CS C 203 CS CS C 204 1555 2775 3.75 LINK CS CS C 203 CS CS C 204 1555 3755 3.75 LINK CS CS C 203 CS CS C 204 1555 4575 3.75 LINK CS CS C 204 CS CS C 205 1555 1555 3.53 LINK CS CS C 204 CS CS C 205 1555 2775 3.53 LINK CS CS C 204 CS CS C 205 1555 3755 3.53 LINK CS CS C 204 CS CS C 205 1555 4575 3.53 LINK CS CS C 204 O HOH C 324 1555 1555 3.59 LINK CS CS C 204 O HOH C 324 1555 4575 3.59 LINK CS CS C 204 O HOH C 324 1555 3755 3.59 LINK CS CS C 204 O HOH C 324 1555 2775 3.59 LINK CS CS C 205 O HOH C 324 1555 1555 3.66 LINK CS CS C 205 O HOH C 324 1555 4575 3.66 LINK CS CS C 205 O HOH C 324 1555 3755 3.66 LINK CS CS C 205 O HOH C 324 1555 2775 3.66 CISPEP 1 SER A 7 PRO A 8 0 0.31 CISPEP 2 TRP A 94 PRO A 95 0 0.73 CISPEP 3 TYR A 140 PRO A 141 0 -0.26 CISPEP 4 PHE B 151 PRO B 152 0 -0.30 CISPEP 5 GLU B 153 PRO B 154 0 -0.11 CISPEP 6 TRP B 193 PRO B 194 0 0.38 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 2 THR C 75 CS C 205 SITE 1 AC5 1 CS C 204 SITE 1 AC6 5 PRO C 63 LEU C 66 TRP C 67 LEU C 86 SITE 2 AC6 5 ARG C 89 SITE 1 AC7 2 ARG B 57 VAL C 91 CRYST1 154.910 154.910 75.490 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 0.006455 0.000000 0.000000 0.00000 SCALE2 0.000000 0.006455 0.000000 0.00000 SCALE3 0.000000 0.000000 0.013247 0.00000