HEADER MEMBRANE PROTEIN 26-JUL-11 3T4Z TITLE CRYSTAL STRUCTURE OF NAK2K CHANNEL Y55W 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 3T4Z 1 REMARK SEQADV LINK REVDAT 2 19-OCT-11 3T4Z 1 JRNL REVDAT 1 05-OCT-11 3T4Z 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. 1.90 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) : 1.90 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 28.84 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 1.370 REMARK 3 COMPLETENESS FOR RANGE (%) : 92.2 REMARK 3 NUMBER OF REFLECTIONS : 14444 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.227 REMARK 3 R VALUE (WORKING SET) : 0.226 REMARK 3 FREE R VALUE : 0.242 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.030 REMARK 3 FREE R VALUE TEST SET COUNT : 727 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 28.8388 - 3.2500 0.98 2963 147 0.2067 0.2083 REMARK 3 2 3.2500 - 2.5801 0.99 2978 156 0.1792 0.2391 REMARK 3 3 2.5801 - 2.2541 0.97 2850 157 0.2482 0.2452 REMARK 3 4 2.2541 - 2.0481 0.90 2663 158 0.3168 0.3161 REMARK 3 5 2.0481 - 1.9010 0.76 2263 109 0.3658 0.3800 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 : 0.37 REMARK 3 B_SOL : 101.8 REMARK 3 REMARK 3 ERROR ESTIMATES. REMARK 3 COORDINATE ERROR (MAXIMUM-LIKELIHOOD BASED) : 0.210 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 34.360 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) : -18.76980 REMARK 3 B22 (A**2) : -18.76980 REMARK 3 B33 (A**2) : 37.53950 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 : 0.003 1527 REMARK 3 ANGLE : 0.730 2084 REMARK 3 CHIRALITY : 0.046 259 REMARK 3 PLANARITY : 0.003 250 REMARK 3 DIHEDRAL : 11.361 520 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): -0.8714 -13.1612 23.4019 REMARK 3 T TENSOR REMARK 3 T11: 0.4037 T22: 0.3695 REMARK 3 T33: 0.6017 T12: -0.0202 REMARK 3 T13: 0.0598 T23: 0.0573 REMARK 3 L TENSOR REMARK 3 L11: 0.6141 L22: 0.8734 REMARK 3 L33: 0.6474 L12: -0.2347 REMARK 3 L13: -0.1962 L23: 0.1014 REMARK 3 S TENSOR REMARK 3 S11: -0.0187 S12: -0.0403 S13: -0.3699 REMARK 3 S21: 0.0952 S22: -0.1071 S23: 0.0351 REMARK 3 S31: 0.2500 S32: 0.0402 S33: 0.1392 REMARK 3 TLS GROUP : 2 REMARK 3 SELECTION: CHAIN B REMARK 3 ORIGIN FOR THE GROUP (A): -11.4108 -6.8895 -21.1356 REMARK 3 T TENSOR REMARK 3 T11: 0.4084 T22: 0.3887 REMARK 3 T33: 0.4522 T12: -0.0079 REMARK 3 T13: 0.0914 T23: 0.0088 REMARK 3 L TENSOR REMARK 3 L11: 1.1692 L22: 1.3193 REMARK 3 L33: 0.3290 L12: 0.4477 REMARK 3 L13: -0.2804 L23: 0.5492 REMARK 3 S TENSOR REMARK 3 S11: 0.0995 S12: -0.1827 S13: -0.1762 REMARK 3 S21: 0.0255 S22: 0.0160 S23: 0.3354 REMARK 3 S31: 0.1579 S32: -0.1523 S33: -0.0076 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 3T4Z COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 27-JUL-11. REMARK 100 THE DEPOSITION ID IS D_1000067043. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 22-OCT-09 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 9.0 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : APS REMARK 200 BEAMLINE : 19-BM REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.9790983 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : ADSC QUANTUM 210R REMARK 200 INTENSITY-INTEGRATION SOFTWARE : HKL-2000 REMARK 200 DATA SCALING SOFTWARE : HKL-2000 REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 14653 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.900 REMARK 200 RESOLUTION RANGE LOW (A) : 30.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 1.130 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) : 1.90 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.93 REMARK 200 COMPLETENESS FOR SHELL (%) : 74.5 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 (%): 47.50 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.34 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 65% MPD, 100MM GLYCINE, PH 9.0, 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 34.19400 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 34.19400 REMARK 290 SMTRY3 5 0.000000 0.000000 1.000000 43.26000 REMARK 290 SMTRY1 6 -1.000000 0.000000 0.000000 34.19400 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 34.19400 REMARK 290 SMTRY3 6 0.000000 0.000000 1.000000 43.26000 REMARK 290 SMTRY1 7 0.000000 -1.000000 0.000000 34.19400 REMARK 290 SMTRY2 7 1.000000 0.000000 0.000000 34.19400 REMARK 290 SMTRY3 7 0.000000 0.000000 1.000000 43.26000 REMARK 290 SMTRY1 8 0.000000 1.000000 0.000000 34.19400 REMARK 290 SMTRY2 8 -1.000000 0.000000 0.000000 34.19400 REMARK 290 SMTRY3 8 0.000000 0.000000 1.000000 43.26000 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: 8920 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 16820 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -62.0 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: 8960 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 17810 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -63.0 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 B 12 LIES ON A SPECIAL POSITION. REMARK 375 HOH B 13 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 -52.36 -128.89 REMARK 500 VAL B 102 -59.73 -120.38 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 66.7 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 73.5 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 56.7 REMARK 620 N 1 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 K B 5 K REMARK 620 N RES CSSEQI ATOM REMARK 620 1 GLY B 65 O REMARK 620 2 TYR B 66 O 65.5 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 74.1 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 73.9 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 HOH B 12 O REMARK 620 2 THR B 63 OG1 69.5 REMARK 620 3 THR B 63 O 130.6 61.3 REMARK 620 N 1 2 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 DBREF 3T4Z A 20 110 UNP Q81HW2 Q81HW2_BACCR 20 110 DBREF 3T4Z B 20 110 UNP Q81HW2 Q81HW2_BACCR 20 110 SEQADV 3T4Z MET A 18 UNP Q81HW2 EXPRESSION TAG SEQADV 3T4Z ALA A 19 UNP Q81HW2 EXPRESSION TAG SEQADV 3T4Z TRP A 55 UNP Q81HW2 TYR 55 ENGINEERED MUTATION SEQADV 3T4Z TYR A 66 UNP Q81HW2 ASP 66 ENGINEERED MUTATION SEQADV 3T4Z ASP A 68 UNP Q81HW2 ASN 68 ENGINEERED MUTATION SEQADV 3T4Z LEU A 111 UNP Q81HW2 EXPRESSION TAG SEQADV 3T4Z VAL A 112 UNP Q81HW2 EXPRESSION TAG SEQADV 3T4Z PRO A 113 UNP Q81HW2 EXPRESSION TAG SEQADV 3T4Z ARG A 114 UNP Q81HW2 EXPRESSION TAG SEQADV 3T4Z MET B 18 UNP Q81HW2 EXPRESSION TAG SEQADV 3T4Z ALA B 19 UNP Q81HW2 EXPRESSION TAG SEQADV 3T4Z TRP B 55 UNP Q81HW2 TYR 55 ENGINEERED MUTATION SEQADV 3T4Z TYR B 66 UNP Q81HW2 ASP 66 ENGINEERED MUTATION SEQADV 3T4Z ASP B 68 UNP Q81HW2 ASN 68 ENGINEERED MUTATION SEQADV 3T4Z LEU B 111 UNP Q81HW2 EXPRESSION TAG SEQADV 3T4Z VAL B 112 UNP Q81HW2 EXPRESSION TAG SEQADV 3T4Z PRO B 113 UNP Q81HW2 EXPRESSION TAG SEQADV 3T4Z 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 TRP PHE SEQRES 4 A 97 SER VAL VAL THR LEU THR THR VAL GLY TYR GLY ASP 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 TRP PHE SEQRES 4 B 97 SER VAL VAL THR LEU THR THR VAL GLY TYR GLY ASP 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 1 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 *37(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 ASN A 110 1 9 HELIX 5 5 ALA B 19 GLU B 46 1 28 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 K A 1 O GLY A 65 1555 1555 3.36 LINK K K A 1 O TYR A 66 1555 1555 2.85 LINK K K A 2 O VAL A 64 1555 1555 3.01 LINK K K A 2 O GLY A 65 1555 1555 2.96 LINK K K A 3 O THR A 63 1555 1555 2.76 LINK K K A 3 O VAL A 64 1555 1555 3.18 LINK K K A 4 OG1 THR A 63 1555 1555 3.02 LINK K K A 4 O THR A 63 1555 1555 3.09 LINK K K B 5 O GLY B 65 1555 1555 3.06 LINK K K B 5 O TYR B 66 1555 1555 3.13 LINK K K B 6 O VAL B 64 1555 1555 2.97 LINK K K B 6 O GLY B 65 1555 1555 3.16 LINK K K B 7 O THR B 63 1555 1555 2.77 LINK K K B 7 O VAL B 64 1555 1555 2.95 LINK K K B 8 O HOH B 12 1555 1555 2.41 LINK K K B 8 OG1 THR B 63 1555 1555 2.82 LINK K K B 8 O THR B 63 1555 1555 2.99 SITE 1 AC1 2 GLY A 65 TYR A 66 SITE 1 AC2 3 K A 3 VAL A 64 GLY A 65 SITE 1 AC3 4 K A 2 K A 4 THR A 63 VAL A 64 SITE 1 AC4 2 K A 3 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 4 K B 6 K B 8 THR B 63 VAL B 64 SITE 1 AC8 3 K B 7 HOH B 12 THR B 63 CRYST1 68.388 68.388 86.520 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 0.014622 0.000000 0.000000 0.00000 SCALE2 0.000000 0.014622 0.000000 0.00000 SCALE3 0.000000 0.000000 0.011558 0.00000