HEADER MEMBRANE PROTEIN 21-JUL-11 3T1C TITLE CRYSTAL STRUCTURE OF NAK CHANNEL D66Y 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 3T1C 1 REMARK SEQADV LINK REVDAT 2 19-OCT-11 3T1C 1 JRNL REVDAT 1 05-OCT-11 3T1C 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. 1.80 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) : 1.80 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 34.10 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 1.350 REMARK 3 COMPLETENESS FOR RANGE (%) : 99.8 REMARK 3 NUMBER OF REFLECTIONS : 18821 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) : 0.212 REMARK 3 FREE R VALUE : 0.233 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.140 REMARK 3 FREE R VALUE TEST SET COUNT : 967 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 24.1117 - 3.4447 0.95 2590 127 0.2072 0.2907 REMARK 3 2 3.4447 - 2.7354 0.95 2559 136 0.2202 0.2217 REMARK 3 3 2.7354 - 2.3900 0.95 2547 147 0.2241 0.2298 REMARK 3 4 2.3900 - 2.1716 0.94 2534 155 0.2384 0.2495 REMARK 3 5 2.1716 - 2.0161 0.95 2543 130 0.2481 0.2271 REMARK 3 6 2.0161 - 1.8972 0.95 2557 131 0.2700 0.3074 REMARK 3 7 1.8972 - 1.8020 0.94 2509 141 0.2973 0.3083 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 : 0.36 REMARK 3 B_SOL : 75.53 REMARK 3 REMARK 3 ERROR ESTIMATES. REMARK 3 COORDINATE ERROR (MAXIMUM-LIKELIHOOD BASED) : NULL REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 30.880 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) : -2.20780 REMARK 3 B22 (A**2) : -2.20780 REMARK 3 B33 (A**2) : 4.41560 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 1521 REMARK 3 ANGLE : 0.563 2074 REMARK 3 CHIRALITY : 0.056 259 REMARK 3 PLANARITY : 0.001 250 REMARK 3 DIHEDRAL : 9.529 522 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): -1.1118 -13.0158 23.7650 REMARK 3 T TENSOR REMARK 3 T11: 0.2257 T22: 0.2342 REMARK 3 T33: 0.2415 T12: -0.0298 REMARK 3 T13: 0.0258 T23: 0.0135 REMARK 3 L TENSOR REMARK 3 L11: 0.3851 L22: 1.1839 REMARK 3 L33: 0.2717 L12: 0.0897 REMARK 3 L13: 0.2981 L23: -0.1740 REMARK 3 S TENSOR REMARK 3 S11: -0.0087 S12: 0.0419 S13: -0.1567 REMARK 3 S21: 0.1828 S22: -0.1065 S23: -0.0297 REMARK 3 S31: 0.1686 S32: -0.0528 S33: -0.0069 REMARK 3 TLS GROUP : 2 REMARK 3 SELECTION: CHAIN B REMARK 3 ORIGIN FOR THE GROUP (A): -11.2792 -6.9228 -22.8374 REMARK 3 T TENSOR REMARK 3 T11: 0.3888 T22: 0.2792 REMARK 3 T33: 0.2125 T12: 0.0403 REMARK 3 T13: 0.0775 T23: 0.0709 REMARK 3 L TENSOR REMARK 3 L11: 0.7078 L22: 0.7597 REMARK 3 L33: 0.2868 L12: -0.1814 REMARK 3 L13: -0.3332 L23: -0.2178 REMARK 3 S TENSOR REMARK 3 S11: -0.0792 S12: -0.3168 S13: -0.1002 REMARK 3 S21: 0.3447 S22: 0.0743 S23: 0.2668 REMARK 3 S31: -0.1739 S32: -0.1263 S33: -0.0002 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 3T1C 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_1000066912. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 06-JUN-09 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 7.0 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : ALS REMARK 200 BEAMLINE : 8.2.1 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.0 REMARK 200 MONOCHROMATOR : DOUBLE CRYSTAL, SI(111) 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 : 18824 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.800 REMARK 200 RESOLUTION RANGE LOW (A) : 50.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 1.750 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) : 1.80 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.83 REMARK 200 COMPLETENESS FOR SHELL (%) : 100.0 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 (%): 48.88 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.41 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 100MM TRIS, 70% MPD, PH 7.0, 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 34.09600 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 34.09600 REMARK 290 SMTRY3 5 0.000000 0.000000 1.000000 44.58250 REMARK 290 SMTRY1 6 -1.000000 0.000000 0.000000 34.09600 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 34.09600 REMARK 290 SMTRY3 6 0.000000 0.000000 1.000000 44.58250 REMARK 290 SMTRY1 7 0.000000 -1.000000 0.000000 34.09600 REMARK 290 SMTRY2 7 1.000000 0.000000 0.000000 34.09600 REMARK 290 SMTRY3 7 0.000000 0.000000 1.000000 44.58250 REMARK 290 SMTRY1 8 0.000000 1.000000 0.000000 34.09600 REMARK 290 SMTRY2 8 -1.000000 0.000000 0.000000 34.09600 REMARK 290 SMTRY3 8 0.000000 0.000000 1.000000 44.58250 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: 6580 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 17990 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -56.0 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: 6680 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 19000 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -57.0 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 A 9 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 K K B 10 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 -53.27 -137.02 REMARK 500 VAL A 112 111.90 -33.84 REMARK 500 VAL B 102 -55.64 -125.26 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 4 K REMARK 620 N RES CSSEQI ATOM REMARK 620 1 THR A 63 OG1 REMARK 620 2 THR A 63 O 63.5 REMARK 620 N 1 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 K A 9 K REMARK 620 N RES CSSEQI ATOM REMARK 620 1 THR A 63 O REMARK 620 2 VAL A 64 O 71.4 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 OG1 REMARK 620 2 THR B 63 O 64.3 REMARK 620 N 1 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 K B 10 K REMARK 620 N RES CSSEQI ATOM REMARK 620 1 THR B 63 O REMARK 620 2 VAL B 64 O 73.4 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 2 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE K A 3 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE K A 4 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE K A 9 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 7 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC7 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE K B 10 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: 3T2M RELATED DB: PDB REMARK 900 RELATED ID: 3T4D RELATED DB: PDB DBREF 3T1C A 20 110 UNP Q81HW2 Q81HW2_BACCR 20 110 DBREF 3T1C B 20 110 UNP Q81HW2 Q81HW2_BACCR 20 110 SEQADV 3T1C MET A 18 UNP Q81HW2 EXPRESSION TAG SEQADV 3T1C ALA A 19 UNP Q81HW2 EXPRESSION TAG SEQADV 3T1C TYR A 66 UNP Q81HW2 ASP 66 ENGINEERED MUTATION SEQADV 3T1C LEU A 111 UNP Q81HW2 EXPRESSION TAG SEQADV 3T1C VAL A 112 UNP Q81HW2 EXPRESSION TAG SEQADV 3T1C PRO A 113 UNP Q81HW2 EXPRESSION TAG SEQADV 3T1C ARG A 114 UNP Q81HW2 EXPRESSION TAG SEQADV 3T1C MET B 18 UNP Q81HW2 EXPRESSION TAG SEQADV 3T1C ALA B 19 UNP Q81HW2 EXPRESSION TAG SEQADV 3T1C TYR B 66 UNP Q81HW2 ASP 66 ENGINEERED MUTATION SEQADV 3T1C LEU B 111 UNP Q81HW2 EXPRESSION TAG SEQADV 3T1C VAL B 112 UNP Q81HW2 EXPRESSION TAG SEQADV 3T1C PRO B 113 UNP Q81HW2 EXPRESSION TAG SEQADV 3T1C 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 ASN 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 ASN 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 A 9 1 HET K B 5 1 HET K B 6 1 HET K B 7 1 HET K B 8 1 HET K B 10 1 HETNAM K POTASSIUM ION FORMUL 3 K 10(K 1+) FORMUL 13 HOH *4(H2 O) HELIX 1 1 ASP A 21 VAL A 45 1 25 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 ALA B 19 VAL B 45 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 K A 3 O VAL A 64 1555 1555 3.10 LINK K K A 4 OG1 THR A 63 1555 1555 2.78 LINK K K A 4 O THR A 63 1555 1555 3.01 LINK K K A 9 O THR A 63 1555 1555 2.83 LINK K K A 9 O VAL A 64 1555 1555 2.85 LINK K K B 7 OG1 THR B 63 1555 1555 2.75 LINK K K B 7 O THR B 63 1555 1555 2.94 LINK K K B 10 O THR B 63 1555 1555 2.70 LINK K K B 10 O VAL B 64 1555 1555 2.88 SITE 1 AC1 1 K A 3 SITE 1 AC2 3 K A 2 K A 9 VAL A 64 SITE 1 AC3 2 K A 9 THR A 63 SITE 1 AC4 4 K A 3 K A 4 THR A 63 VAL A 64 SITE 1 AC5 1 GLY B 67 SITE 1 AC6 2 K B 10 THR B 63 SITE 1 AC7 3 K B 7 THR B 63 VAL B 64 CRYST1 68.192 68.192 89.165 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 0.014664 0.000000 0.000000 0.00000 SCALE2 0.000000 0.014664 0.000000 0.00000 SCALE3 0.000000 0.000000 0.011215 0.00000