HEADER MEMBRANE PROTEIN 22-JUL-11 3T2M TITLE CRYSTAL STRUCTURE OF NAK CHANNEL N68D 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 3T2M 1 REMARK SEQADV LINK REVDAT 2 19-OCT-11 3T2M 1 JRNL REVDAT 1 05-OCT-11 3T2M 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. 1.95 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 : TWIN_LSQ_F REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.95 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 34.04 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 1.360 REMARK 3 COMPLETENESS FOR RANGE (%) : 98.1 REMARK 3 NUMBER OF REFLECTIONS : 14512 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.204 REMARK 3 R VALUE (WORKING SET) : 0.191 REMARK 3 FREE R VALUE : 0.223 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.040 REMARK 3 FREE R VALUE TEST SET COUNT : 731 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 21.5326 - 3.3377 0.95 2838 148 0.1740 0.2345 REMARK 3 2 3.3377 - 2.6508 0.95 2796 145 0.2039 0.2236 REMARK 3 3 2.6508 - 2.3161 0.95 2804 140 0.2252 0.2302 REMARK 3 4 2.3161 - 2.1046 0.94 2766 162 0.2572 0.2811 REMARK 3 5 2.1046 - 1.9530 0.87 2551 134 0.2767 0.3090 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 : 0.38 REMARK 3 B_SOL : 73.30 REMARK 3 REMARK 3 ERROR ESTIMATES. REMARK 3 COORDINATE ERROR (MAXIMUM-LIKELIHOOD BASED) : NULL REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 37.750 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) : -3.60010 REMARK 3 B22 (A**2) : -3.60010 REMARK 3 B33 (A**2) : 7.20030 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 1511 REMARK 3 ANGLE : 0.713 2060 REMARK 3 CHIRALITY : 0.055 259 REMARK 3 PLANARITY : 0.002 250 REMARK 3 DIHEDRAL : 11.225 520 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): -1.1169 -12.9730 24.6360 REMARK 3 T TENSOR REMARK 3 T11: 0.2028 T22: 0.2129 REMARK 3 T33: 0.2568 T12: -0.0220 REMARK 3 T13: 0.0489 T23: 0.0333 REMARK 3 L TENSOR REMARK 3 L11: 0.2078 L22: 0.5702 REMARK 3 L33: 0.3921 L12: 0.0739 REMARK 3 L13: -0.0675 L23: -0.1373 REMARK 3 S TENSOR REMARK 3 S11: 0.0017 S12: 0.0076 S13: -0.2241 REMARK 3 S21: 0.1043 S22: -0.0581 S23: 0.1265 REMARK 3 S31: 0.1720 S32: -0.0466 S33: 0.0731 REMARK 3 TLS GROUP : 2 REMARK 3 SELECTION: CHAIN B REMARK 3 ORIGIN FOR THE GROUP (A): -11.2849 -6.8576 -22.0093 REMARK 3 T TENSOR REMARK 3 T11: 0.3214 T22: 0.1862 REMARK 3 T33: 0.2267 T12: 0.0599 REMARK 3 T13: 0.0732 T23: 0.0539 REMARK 3 L TENSOR REMARK 3 L11: 0.2012 L22: 0.4315 REMARK 3 L33: 0.1311 L12: 0.0487 REMARK 3 L13: -0.1589 L23: -0.1214 REMARK 3 S TENSOR REMARK 3 S11: -0.1165 S12: -0.2251 S13: -0.0778 REMARK 3 S21: 0.2069 S22: 0.1026 S23: 0.2666 REMARK 3 S31: -0.2226 S32: -0.2126 S33: 0.0245 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 3T2M COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 26-JUL-11. REMARK 100 THE DEPOSITION ID IS D_1000066958. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 11-APR-09 REMARK 200 TEMPERATURE (KELVIN) : 78 REMARK 200 PH : 8.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : APS REMARK 200 BEAMLINE : 19-ID REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.9785736 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : ADSC QUANTUM 315R REMARK 200 INTENSITY-INTEGRATION SOFTWARE : HKL-2000 REMARK 200 DATA SCALING SOFTWARE : HKL-2000 REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 14516 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.950 REMARK 200 RESOLUTION RANGE LOW (A) : 50.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 1.170 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) : 1.95 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.98 REMARK 200 COMPLETENESS FOR SHELL (%) : 84.5 REMARK 200 DATA REDUNDANCY IN SHELL : 4.90 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 (%): 48.90 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.41 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 70% MPD, PH 8.5, VAPOR DIFFUSION, REMARK 280 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 34.04400 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 34.04400 REMARK 290 SMTRY3 5 0.000000 0.000000 1.000000 44.54050 REMARK 290 SMTRY1 6 -1.000000 0.000000 0.000000 34.04400 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 34.04400 REMARK 290 SMTRY3 6 0.000000 0.000000 1.000000 44.54050 REMARK 290 SMTRY1 7 0.000000 -1.000000 0.000000 34.04400 REMARK 290 SMTRY2 7 1.000000 0.000000 0.000000 34.04400 REMARK 290 SMTRY3 7 0.000000 0.000000 1.000000 44.54050 REMARK 290 SMTRY1 8 0.000000 1.000000 0.000000 34.04400 REMARK 290 SMTRY2 8 -1.000000 0.000000 0.000000 34.04400 REMARK 290 SMTRY3 8 0.000000 0.000000 1.000000 44.54050 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: 6850 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 18090 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -57.0 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: 6670 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 19230 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -54.0 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 5 LIES ON A SPECIAL POSITION. REMARK 375 K K A 7 LIES ON A SPECIAL POSITION. REMARK 375 K K B 2 LIES ON A SPECIAL POSITION. REMARK 375 K K B 3 LIES ON A SPECIAL POSITION. REMARK 375 K K B 4 LIES ON A SPECIAL POSITION. REMARK 375 K K B 6 LIES ON A SPECIAL POSITION. REMARK 375 HOH A 2 LIES ON A SPECIAL POSITION. REMARK 375 HOH B 1 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 ALA A 99 -61.31 -96.50 REMARK 500 VAL A 102 -62.25 -133.42 REMARK 500 VAL A 112 118.32 -36.48 REMARK 500 THR B 44 -73.46 -127.96 REMARK 500 VAL B 102 -64.52 -121.09 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 THR A 63 OG1 REMARK 620 2 THR A 63 O 63.1 REMARK 620 N 1 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 K A 7 K REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HOH A 2 O REMARK 620 2 GLY A 67 O 114.4 REMARK 620 N 1 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 K A 5 K REMARK 620 N RES CSSEQI ATOM REMARK 620 1 THR A 63 O REMARK 620 2 VAL A 64 O 70.8 REMARK 620 N 1 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 K B 4 K REMARK 620 N RES CSSEQI ATOM REMARK 620 1 THR B 63 OG1 REMARK 620 2 THR B 63 O 66.1 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 THR B 63 O REMARK 620 2 VAL B 64 O 70.1 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 5 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE K A 7 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE K B 2 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC5 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE K B 4 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC6 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE K B 6 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: 3T1C RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF NAK CHANNEL D66Y MUTANT REMARK 900 RELATED ID: 3T4D RELATED DB: PDB DBREF 3T2M A 20 110 UNP Q81HW2 Q81HW2_BACCR 20 110 DBREF 3T2M B 20 110 UNP Q81HW2 Q81HW2_BACCR 20 110 SEQADV 3T2M MET A 18 UNP Q81HW2 EXPRESSION TAG SEQADV 3T2M ALA A 19 UNP Q81HW2 EXPRESSION TAG SEQADV 3T2M ASP A 68 UNP Q81HW2 ASN 68 ENGINEERED MUTATION SEQADV 3T2M LEU A 111 UNP Q81HW2 EXPRESSION TAG SEQADV 3T2M VAL A 112 UNP Q81HW2 EXPRESSION TAG SEQADV 3T2M PRO A 113 UNP Q81HW2 EXPRESSION TAG SEQADV 3T2M ARG A 114 UNP Q81HW2 EXPRESSION TAG SEQADV 3T2M MET B 18 UNP Q81HW2 EXPRESSION TAG SEQADV 3T2M ALA B 19 UNP Q81HW2 EXPRESSION TAG SEQADV 3T2M ASP B 68 UNP Q81HW2 ASN 68 ENGINEERED MUTATION SEQADV 3T2M LEU B 111 UNP Q81HW2 EXPRESSION TAG SEQADV 3T2M VAL B 112 UNP Q81HW2 EXPRESSION TAG SEQADV 3T2M PRO B 113 UNP Q81HW2 EXPRESSION TAG SEQADV 3T2M 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 ASP 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 TYR PHE SEQRES 4 B 97 SER VAL VAL THR LEU THR THR VAL GLY ASP 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 5 1 HET K A 7 1 HET K B 2 1 HET K B 3 1 HET K B 4 1 HET K B 6 1 HETNAM K POTASSIUM ION FORMUL 3 K 7(K 1+) FORMUL 10 HOH *9(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 ASN A 101 1 29 HELIX 4 4 VAL A 102 VAL A 112 1 11 HELIX 5 5 LYS B 20 SER B 43 1 24 HELIX 6 6 ARG B 49 THR B 62 1 14 HELIX 7 7 THR B 73 ASN B 101 1 29 HELIX 8 8 VAL B 102 LEU B 111 1 10 LINK K K A 1 OG1 THR A 63 1555 1555 2.71 LINK K K A 1 O THR A 63 1555 1555 2.88 LINK O HOH A 2 K K A 7 1555 1555 3.20 LINK K K A 5 O THR A 63 1555 1555 2.94 LINK K K A 5 O VAL A 64 1555 1555 2.84 LINK K K A 7 O GLY A 67 1555 1555 2.69 LINK K K B 2 O GLY B 67 1555 1555 2.83 LINK K K B 4 OG1 THR B 63 1555 1555 2.85 LINK K K B 4 O THR B 63 1555 1555 3.08 LINK K K B 6 O THR B 63 1555 1555 2.73 LINK K K B 6 O VAL B 64 1555 1555 2.79 SITE 1 AC1 1 THR A 63 SITE 1 AC2 2 THR A 63 VAL A 64 SITE 1 AC3 1 GLY A 67 SITE 1 AC4 2 GLY B 67 ASP B 68 SITE 1 AC5 2 K B 6 THR B 63 SITE 1 AC6 3 K B 4 THR B 63 VAL B 64 CRYST1 68.088 68.088 89.081 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 0.014687 0.000000 0.000000 0.00000 SCALE2 0.000000 0.014687 0.000000 0.00000 SCALE3 0.000000 0.000000 0.011226 0.00000