HEADER MEMBRANE PROTEIN 09-AUG-11 3TCU TITLE CRYSTAL STRUCTURE OF NAK2K CHANNEL D68E MUTANT COMPND MOL_ID: 1; COMPND 2 MOLECULE: POTASSIUM CHANNEL PROTEIN; COMPND 3 CHAIN: A, B; COMPND 4 ENGINEERED: YES; COMPND 5 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: BACILLUS CEREUS; 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_STRAIN: SG13009; SOURCE 9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 10 EXPRESSION_SYSTEM_PLASMID: PQE60 KEYWDS MEMBRANE PROTEIN, ION CHANNEL EXPDTA X-RAY DIFFRACTION AUTHOR D.B.SAUER,W.ZENG,S.RAGHUNATHAN,Y.JIANG REVDAT 3 28-FEB-24 3TCU 1 REMARK SEQADV LINK REVDAT 2 19-OCT-11 3TCU 1 JRNL REVDAT 1 05-OCT-11 3TCU 0 JRNL AUTH D.B.SAUER,W.ZENG,S.RAGHUNATHAN,Y.JIANG JRNL TITL PROTEIN INTERACTIONS CENTRAL TO STABILIZING THE K+ CHANNEL JRNL TITL 2 SELECTIVITY FILTER IN A FOUR-SITED CONFIGURATION FOR JRNL TITL 3 SELECTIVE K+ PERMEATION. JRNL REF PROC.NATL.ACAD.SCI.USA V. 108 16634 2011 JRNL REFN ISSN 0027-8424 JRNL PMID 21933962 JRNL DOI 10.1073/PNAS.1111688108 REMARK 2 REMARK 2 RESOLUTION. 1.75 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PHENIX (PHENIX.REFINE: 1.6.1_357) REMARK 3 AUTHORS : PAUL ADAMS,PAVEL AFONINE,VINCENT CHEN,IAN REMARK 3 : DAVIS,KRESHNA GOPAL,RALF GROSSE-KUNSTLEVE, REMARK 3 : LI-WEI HUNG,ROBERT IMMORMINO,TOM IOERGER, REMARK 3 : AIRLIE MCCOY,ERIK MCKEE,NIGEL MORIARTY, REMARK 3 : REETAL PAI,RANDY READ,JANE RICHARDSON, REMARK 3 : DAVID RICHARDSON,TOD ROMO,JIM SACCHETTINI, REMARK 3 : NICHOLAS SAUTER,JACOB SMITH,LAURENT REMARK 3 : STORONI,TOM TERWILLIGER,PETER ZWART REMARK 3 REMARK 3 REFINEMENT TARGET : ML REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.75 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 14.96 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 1.370 REMARK 3 COMPLETENESS FOR RANGE (%) : 98.6 REMARK 3 NUMBER OF REFLECTIONS : 18669 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.203 REMARK 3 R VALUE (WORKING SET) : 0.202 REMARK 3 FREE R VALUE : 0.225 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.120 REMARK 3 FREE R VALUE TEST SET COUNT : 955 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT (IN BINS). REMARK 3 BIN RESOLUTION RANGE COMPL. NWORK NFREE RWORK RFREE REMARK 3 1 14.9621 - 3.3370 0.97 2533 118 0.2181 0.2150 REMARK 3 2 3.3370 - 2.6535 1.00 2573 128 0.1693 0.2107 REMARK 3 3 2.6535 - 2.3195 1.00 2539 154 0.1766 0.2147 REMARK 3 4 2.3195 - 2.1081 1.00 2552 136 0.1874 0.2296 REMARK 3 5 2.1081 - 1.9573 1.00 2594 123 0.1825 0.2410 REMARK 3 6 1.9573 - 1.8421 1.00 2535 144 0.2237 0.2642 REMARK 3 7 1.8421 - 1.7500 0.95 2388 152 0.2825 0.3129 REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : FLAT BULK SOLVENT MODEL REMARK 3 SOLVENT RADIUS : 1.11 REMARK 3 SHRINKAGE RADIUS : 0.90 REMARK 3 K_SOL : 0.49 REMARK 3 B_SOL : 147.9 REMARK 3 REMARK 3 ERROR ESTIMATES. REMARK 3 COORDINATE ERROR (MAXIMUM-LIKELIHOOD BASED) : 0.210 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 21.980 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : NULL REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : -0.46580 REMARK 3 B22 (A**2) : -0.46580 REMARK 3 B33 (A**2) : 0.93170 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 TWINNING INFORMATION. REMARK 3 FRACTION: NULL REMARK 3 OPERATOR: NULL REMARK 3 REMARK 3 DEVIATIONS FROM IDEAL VALUES. REMARK 3 RMSD COUNT REMARK 3 BOND : 0.005 1527 REMARK 3 ANGLE : 0.975 2083 REMARK 3 CHIRALITY : 0.066 260 REMARK 3 PLANARITY : 0.003 251 REMARK 3 DIHEDRAL : 12.188 527 REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : 2 REMARK 3 TLS GROUP : 1 REMARK 3 SELECTION: CHAIN A REMARK 3 ORIGIN FOR THE GROUP (A): -0.7764 -12.9802 22.8075 REMARK 3 T TENSOR REMARK 3 T11: 0.3806 T22: 0.2911 REMARK 3 T33: 0.2482 T12: -0.0280 REMARK 3 T13: 0.0128 T23: 0.0311 REMARK 3 L TENSOR REMARK 3 L11: 2.2261 L22: 0.9517 REMARK 3 L33: 0.3353 L12: -0.0948 REMARK 3 L13: 0.2813 L23: 0.3821 REMARK 3 S TENSOR REMARK 3 S11: 0.0014 S12: -0.1369 S13: -0.1053 REMARK 3 S21: 0.2309 S22: -0.0193 S23: -0.0343 REMARK 3 S31: 0.1153 S32: -0.0157 S33: 0.0188 REMARK 3 TLS GROUP : 2 REMARK 3 SELECTION: CHAIN B REMARK 3 ORIGIN FOR THE GROUP (A): -11.1503 -6.9144 -20.4079 REMARK 3 T TENSOR REMARK 3 T11: 0.2298 T22: 0.2285 REMARK 3 T33: 0.2609 T12: -0.0246 REMARK 3 T13: 0.0183 T23: -0.0188 REMARK 3 L TENSOR REMARK 3 L11: 0.8435 L22: 2.4315 REMARK 3 L33: 0.4277 L12: -0.2819 REMARK 3 L13: -0.5181 L23: -0.0466 REMARK 3 S TENSOR REMARK 3 S11: 0.0562 S12: -0.0997 S13: 0.0399 REMARK 3 S21: -0.0366 S22: -0.1432 S23: 0.0421 REMARK 3 S31: 0.1178 S32: -0.0584 S33: 0.0564 REMARK 3 REMARK 3 NCS DETAILS REMARK 3 NUMBER OF NCS GROUPS : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 3TCU COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 11-AUG-11. REMARK 100 THE DEPOSITION ID IS D_1000067324. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 10-MAR-10 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 9.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : APS REMARK 200 BEAMLINE : 23-ID-B REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.0332 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : MARMOSAIC 300 MM CCD REMARK 200 INTENSITY-INTEGRATION SOFTWARE : HKL-2000 REMARK 200 DATA SCALING SOFTWARE : HKL-2000 REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 18720 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.750 REMARK 200 RESOLUTION RANGE LOW (A) : 15.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 1.210 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : NULL 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) : 1.75 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.78 REMARK 200 COMPLETENESS FOR SHELL (%) : 87.1 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 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: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 44.39 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.21 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 60% MPD, 100MM GLYCINE, PH 9.5, VAPOR REMARK 280 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 33.69750 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 33.69750 REMARK 290 SMTRY3 5 0.000000 0.000000 1.000000 42.01750 REMARK 290 SMTRY1 6 -1.000000 0.000000 0.000000 33.69750 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 33.69750 REMARK 290 SMTRY3 6 0.000000 0.000000 1.000000 42.01750 REMARK 290 SMTRY1 7 0.000000 -1.000000 0.000000 33.69750 REMARK 290 SMTRY2 7 1.000000 0.000000 0.000000 33.69750 REMARK 290 SMTRY3 7 0.000000 0.000000 1.000000 42.01750 REMARK 290 SMTRY1 8 0.000000 1.000000 0.000000 33.69750 REMARK 290 SMTRY2 8 -1.000000 0.000000 0.000000 33.69750 REMARK 290 SMTRY3 8 0.000000 0.000000 1.000000 42.01750 REMARK 290 REMARK 290 REMARK: NULL REMARK 300 REMARK 300 BIOMOLECULE: 1, 2 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: TETRAMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TETRAMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 6870 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 17820 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -61.0 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 0.00000 REMARK 350 BIOMT2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 350 BIOMT3 2 0.000000 0.000000 1.000000 0.00000 REMARK 350 BIOMT1 3 0.000000 -1.000000 0.000000 0.00000 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 0.00000 REMARK 350 BIOMT3 4 0.000000 0.000000 1.000000 0.00000 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: 7180 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 19080 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -62.0 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 0.00000 REMARK 350 BIOMT2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 350 BIOMT3 2 0.000000 0.000000 1.000000 0.00000 REMARK 350 BIOMT1 3 0.000000 -1.000000 0.000000 0.00000 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 0.00000 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 A 1 LIES ON A SPECIAL POSITION. REMARK 375 K K A 2 LIES ON A SPECIAL POSITION. REMARK 375 K K A 3 LIES ON A SPECIAL POSITION. REMARK 375 K K A 4 LIES ON A SPECIAL POSITION. REMARK 375 K K B 5 LIES ON A SPECIAL POSITION. REMARK 375 K K B 6 LIES ON A SPECIAL POSITION. REMARK 375 K K B 7 LIES ON A SPECIAL POSITION. REMARK 375 K K B 8 LIES ON A SPECIAL POSITION. REMARK 375 HOH A 125 LIES ON A SPECIAL POSITION. REMARK 375 HOH A 135 LIES ON A SPECIAL POSITION. REMARK 375 HOH A 138 LIES ON A SPECIAL POSITION. REMARK 375 HOH B 130 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 ARG A 114 REMARK 465 MET B 18 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 VAL A 102 -58.34 -120.82 REMARK 500 VAL B 102 -58.25 -123.76 REMARK 500 REMARK 500 REMARK: NULL 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 A 1 K REMARK 620 N RES CSSEQI ATOM REMARK 620 1 GLY A 65 O REMARK 620 2 TYR A 66 O 58.6 REMARK 620 N 1 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 K A 2 K REMARK 620 N RES CSSEQI ATOM REMARK 620 1 VAL A 64 O REMARK 620 2 GLY A 65 O 68.0 REMARK 620 N 1 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 K A 3 K REMARK 620 N RES CSSEQI ATOM REMARK 620 1 THR A 63 O REMARK 620 2 VAL A 64 O 71.2 REMARK 620 N 1 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 K A 4 K REMARK 620 N RES CSSEQI ATOM REMARK 620 1 THR A 63 OG1 REMARK 620 2 THR A 63 O 59.0 REMARK 620 N 1 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 K B 6 K REMARK 620 N RES CSSEQI ATOM REMARK 620 1 VAL B 64 O REMARK 620 2 GLY B 65 O 71.8 REMARK 620 N 1 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 K B 7 K REMARK 620 N RES CSSEQI ATOM REMARK 620 1 THR B 63 O REMARK 620 2 VAL B 64 O 71.9 REMARK 620 N 1 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 K B 8 K REMARK 620 N RES CSSEQI ATOM REMARK 620 1 THR B 63 OG1 REMARK 620 2 THR B 63 O 59.7 REMARK 620 N 1 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE K A 1 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE K A 2 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE K A 3 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE K A 4 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC5 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE K B 5 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC6 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE K B 6 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC7 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE K B 7 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC8 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE K B 8 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 3OUF RELATED DB: PDB REMARK 900 STRUCTURE OF A K+ SELECTIVE NAK MUTANT REMARK 900 RELATED ID: 3T4D RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF NAK2K CHANNEL Y55F MUTANT REMARK 900 RELATED ID: 3T4Z RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF NAK2K CHANNEL Y55W MUTANT DBREF 3TCU A 20 110 UNP Q81HW2 Q81HW2_BACCR 20 110 DBREF 3TCU B 20 110 UNP Q81HW2 Q81HW2_BACCR 20 110 SEQADV 3TCU MET A 18 UNP Q81HW2 EXPRESSION TAG SEQADV 3TCU ALA A 19 UNP Q81HW2 EXPRESSION TAG SEQADV 3TCU TYR A 66 UNP Q81HW2 ASP 66 ENGINEERED MUTATION SEQADV 3TCU GLU A 68 UNP Q81HW2 ASN 68 ENGINEERED MUTATION SEQADV 3TCU LEU A 111 UNP Q81HW2 EXPRESSION TAG SEQADV 3TCU VAL A 112 UNP Q81HW2 EXPRESSION TAG SEQADV 3TCU PRO A 113 UNP Q81HW2 EXPRESSION TAG SEQADV 3TCU ARG A 114 UNP Q81HW2 EXPRESSION TAG SEQADV 3TCU MET B 18 UNP Q81HW2 EXPRESSION TAG SEQADV 3TCU ALA B 19 UNP Q81HW2 EXPRESSION TAG SEQADV 3TCU TYR B 66 UNP Q81HW2 ASP 66 ENGINEERED MUTATION SEQADV 3TCU GLU B 68 UNP Q81HW2 ASN 68 ENGINEERED MUTATION SEQADV 3TCU LEU B 111 UNP Q81HW2 EXPRESSION TAG SEQADV 3TCU VAL B 112 UNP Q81HW2 EXPRESSION TAG SEQADV 3TCU PRO B 113 UNP Q81HW2 EXPRESSION TAG SEQADV 3TCU ARG B 114 UNP Q81HW2 EXPRESSION TAG SEQRES 1 A 97 MET ALA LYS ASP LYS GLU PHE GLN VAL LEU PHE VAL LEU SEQRES 2 A 97 THR ILE LEU THR LEU ILE SER GLY THR ILE PHE TYR SER SEQRES 3 A 97 THR VAL GLU GLY LEU ARG PRO ILE ASP ALA LEU TYR PHE SEQRES 4 A 97 SER VAL VAL THR LEU THR THR VAL GLY TYR GLY GLU PHE SEQRES 5 A 97 SER PRO GLN THR ASP PHE GLY LYS ILE PHE THR ILE LEU SEQRES 6 A 97 TYR ILE PHE ILE GLY ILE GLY LEU VAL PHE GLY PHE ILE SEQRES 7 A 97 HIS LYS LEU ALA VAL ASN VAL GLN LEU PRO SER ILE LEU SEQRES 8 A 97 SER ASN LEU VAL PRO ARG SEQRES 1 B 97 MET ALA LYS ASP LYS GLU PHE GLN VAL LEU PHE VAL LEU SEQRES 2 B 97 THR ILE LEU THR LEU ILE SER GLY THR ILE PHE TYR SER SEQRES 3 B 97 THR VAL GLU GLY LEU ARG PRO ILE ASP ALA LEU TYR PHE SEQRES 4 B 97 SER VAL VAL THR LEU THR THR VAL GLY TYR GLY GLU PHE SEQRES 5 B 97 SER PRO GLN THR ASP PHE GLY LYS ILE PHE THR ILE LEU SEQRES 6 B 97 TYR ILE PHE ILE GLY ILE GLY LEU VAL PHE GLY PHE ILE SEQRES 7 B 97 HIS LYS LEU ALA VAL ASN VAL GLN LEU PRO SER ILE LEU SEQRES 8 B 97 SER ASN LEU VAL PRO ARG HET K A 1 2 HET K A 2 1 HET K A 3 1 HET K A 4 1 HET K B 5 1 HET K B 6 1 HET K B 7 1 HET K B 8 1 HETNAM K POTASSIUM ION FORMUL 3 K 8(K 1+) FORMUL 11 HOH *52(H2 O) HELIX 1 1 ASP A 21 GLU A 46 1 26 HELIX 2 2 ARG A 49 THR A 62 1 14 HELIX 3 3 THR A 73 VAL A 102 1 30 HELIX 4 4 VAL A 102 LEU A 111 1 10 HELIX 5 5 LYS B 20 GLU B 46 1 27 HELIX 6 6 ARG B 49 THR B 62 1 14 HELIX 7 7 THR B 73 VAL B 102 1 30 HELIX 8 8 VAL B 102 ASN B 110 1 9 LINK K A K A 1 O GLY A 65 1555 1555 3.32 LINK K B K A 1 O TYR A 66 1555 1555 2.93 LINK K A K A 1 O TYR A 66 1555 1555 3.05 LINK K K A 2 O VAL A 64 1555 1555 3.18 LINK K K A 2 O GLY A 65 1555 1555 3.10 LINK K K A 3 O THR A 63 1555 1555 2.92 LINK K K A 3 O VAL A 64 1555 1555 3.08 LINK K K A 4 OG1 THR A 63 1555 1555 3.00 LINK K K A 4 O THR A 63 1555 1555 3.22 LINK K K B 5 O TYR B 66 1555 1555 3.35 LINK K K B 6 O VAL B 64 1555 1555 3.20 LINK K K B 6 O GLY B 65 1555 1555 3.49 LINK K K B 7 O THR B 63 1555 1555 2.99 LINK K K B 7 O VAL B 64 1555 1555 2.97 LINK K K B 8 OG1 THR B 63 1555 1555 2.90 LINK K K B 8 O THR B 63 1555 1555 3.12 SITE 1 AC1 3 K A 2 GLY A 65 TYR A 66 SITE 1 AC2 4 K A 1 K A 3 VAL A 64 GLY A 65 SITE 1 AC3 3 K A 2 THR A 63 VAL A 64 SITE 1 AC4 1 THR A 63 SITE 1 AC5 3 K B 6 GLY B 65 TYR B 66 SITE 1 AC6 4 K B 5 K B 7 VAL B 64 GLY B 65 SITE 1 AC7 3 K B 6 THR B 63 VAL B 64 SITE 1 AC8 1 THR B 63 CRYST1 67.395 67.395 84.035 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 0.014838 0.000000 0.000000 0.00000 SCALE2 0.000000 0.014838 0.000000 0.00000 SCALE3 0.000000 0.000000 0.011900 0.00000