HEADER METAL TRANSPORT, MEMBRANE PROTEIN 04-JUN-07 2Q68 TITLE CRYSTAL STRUCTURE OF NAK CHANNEL D66A, S70E DOUBLE MUTANTS 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: 1396; SOURCE 4 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 5 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 6 EXPRESSION_SYSTEM_STRAIN: XL1-BLUE; SOURCE 7 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 8 EXPRESSION_SYSTEM_PLASMID: PQE60 KEYWDS INVERTED TEEPEE, HELIX BUNDLE, TETRAMER, CENTRAL CAVITY, ION BINDING, KEYWDS 2 METAL TRANSPORT, MEMBRANE PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR A.ALAM,N.SHI,Y.JIANG REVDAT 8 30-AUG-23 2Q68 1 REMARK REVDAT 7 20-OCT-21 2Q68 1 REMARK SEQADV LINK REVDAT 6 24-JUL-19 2Q68 1 REMARK REVDAT 5 18-OCT-17 2Q68 1 REMARK REVDAT 4 13-JUL-11 2Q68 1 VERSN REVDAT 3 24-FEB-09 2Q68 1 VERSN REVDAT 2 09-OCT-07 2Q68 1 JRNL REVDAT 1 02-OCT-07 2Q68 0 JRNL AUTH A.ALAM,N.SHI,Y.JIANG JRNL TITL STRUCTURAL INSIGHT INTO CA2+ SPECIFICITY IN TETRAMERIC JRNL TITL 2 CATION CHANNELS. JRNL REF PROC.NATL.ACAD.SCI.USA V. 104 15334 2007 JRNL REFN ISSN 0027-8424 JRNL PMID 17878296 JRNL DOI 10.1073/PNAS.0707324104 REMARK 2 REMARK 2 RESOLUTION. 2.50 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) : 2.50 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 50.00 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) (%) : 96.1 REMARK 3 NUMBER OF REFLECTIONS : 15573 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) : 0.241 REMARK 3 FREE R VALUE : 0.262 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 4.900 REMARK 3 FREE R VALUE TEST SET COUNT : 790 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : NULL REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : NULL REMARK 3 BIN RESOLUTION RANGE HIGH (A) : NULL REMARK 3 BIN RESOLUTION RANGE LOW (A) : NULL REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : NULL REMARK 3 REFLECTIONS IN BIN (WORKING SET) : NULL REMARK 3 BIN R VALUE (WORKING SET) : NULL REMARK 3 BIN FREE R VALUE : NULL REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 BIN FREE R VALUE TEST SET COUNT : NULL REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : NULL REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1646 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 5 REMARK 3 SOLVENT ATOMS : 17 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 66.93 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 5.31900 REMARK 3 B22 (A**2) : 1.91200 REMARK 3 B33 (A**2) : -7.23100 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) : NULL REMARK 3 ESD FROM C-V SIGMAA (A) : NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.007 REMARK 3 BOND ANGLES (DEGREES) : NULL REMARK 3 DIHEDRAL ANGLES (DEGREES) : NULL REMARK 3 IMPROPER ANGLES (DEGREES) : NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : NULL 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 : NULL REMARK 3 KSOL : NULL REMARK 3 BSOL : 75.70 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 : ION.PARAM REMARK 3 PARAMETER FILE 3 : WATER_REP.PARAM REMARK 3 PARAMETER FILE 4 : NULL REMARK 3 TOPOLOGY FILE 1 : NULL REMARK 3 TOPOLOGY FILE 2 : NULL REMARK 3 TOPOLOGY FILE 3 : NULL REMARK 3 TOPOLOGY FILE 4 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: AUTHORS STATE THAT SOME ELECTRON REMARK 3 DENSITY THAT BELONGS TO LIPID MOLECULES IS NOT CONTINUOUS AND REMARK 3 WAS MODELED AS WATER MOLECULES FOR CONVENIENCE. REMARK 4 REMARK 4 2Q68 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 07-JUN-07. REMARK 100 THE DEPOSITION ID IS D_1000043200. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 13-JUL-06 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 8.0 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) : 0.9790 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : SBC-3 REMARK 200 INTENSITY-INTEGRATION SOFTWARE : HKL-3000, DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK, HKL-3000 REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 15626 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.500 REMARK 200 RESOLUTION RANGE LOW (A) : 50.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 96.1 REMARK 200 DATA REDUNDANCY : 5.100 REMARK 200 R MERGE (I) : 0.04200 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 13.2000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.50 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.59 REMARK 200 COMPLETENESS FOR SHELL (%) : 90.8 REMARK 200 DATA REDUNDANCY IN SHELL : 4.00 REMARK 200 R MERGE FOR SHELL (I) : 0.59400 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: AMORE REMARK 200 STARTING MODEL: PDB ENTRY 2AHZ REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 72.36 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 4.45 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 200 MM CACL2, 100 MM TRIS-HCL, 37-42% REMARK 280 PEG400, 4% T-BUTANOL, PH 8.0, VAPOR DIFFUSION, SITTING DROP, REMARK 280 TEMPERATURE 298K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: C 2 2 21 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,-Y,Z+1/2 REMARK 290 3555 -X,Y,-Z+1/2 REMARK 290 4555 X,-Y,-Z REMARK 290 5555 X+1/2,Y+1/2,Z REMARK 290 6555 -X+1/2,-Y+1/2,Z+1/2 REMARK 290 7555 -X+1/2,Y+1/2,-Z+1/2 REMARK 290 8555 X+1/2,-Y+1/2,-Z 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 65.10600 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 65.10600 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 4 0.000000 -1.000000 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 41.15500 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 42.62200 REMARK 290 SMTRY3 5 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 6 -1.000000 0.000000 0.000000 41.15500 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 42.62200 REMARK 290 SMTRY3 6 0.000000 0.000000 1.000000 65.10600 REMARK 290 SMTRY1 7 -1.000000 0.000000 0.000000 41.15500 REMARK 290 SMTRY2 7 0.000000 1.000000 0.000000 42.62200 REMARK 290 SMTRY3 7 0.000000 0.000000 -1.000000 65.10600 REMARK 290 SMTRY1 8 1.000000 0.000000 0.000000 41.15500 REMARK 290 SMTRY2 8 0.000000 -1.000000 0.000000 42.62200 REMARK 290 SMTRY3 8 0.000000 0.000000 -1.000000 0.00000 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: THE BIOLOGICAL ASSEMBLY IS A TETRAMER GENERATED FROM THE REMARK 300 DIMER IN THE ASYMMETRIC UNIT BY THE OPERATIONS: 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,PQS REMARK 350 TOTAL BURIED SURFACE AREA: 10380 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 20250 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -133.0 KCAL/MOL REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, 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 85.24400 REMARK 350 BIOMT3 2 0.000000 0.000000 -1.000000 130.21200 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 CA CA A 115 LIES ON A SPECIAL POSITION. REMARK 375 NA NA A 116 LIES ON A SPECIAL POSITION. REMARK 375 NA NA A 117 LIES ON A SPECIAL POSITION. REMARK 375 CA CA A 118 LIES ON A SPECIAL POSITION. REMARK 375 NA NA A 119 LIES ON A SPECIAL POSITION. REMARK 375 HOH B 116 LIES ON A SPECIAL POSITION. REMARK 375 HOH B 123 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 PRO A 105 REMARK 465 SER A 106 REMARK 465 ILE A 107 REMARK 465 LEU A 108 REMARK 465 SER A 109 REMARK 465 ASN A 110 REMARK 465 LEU A 111 REMARK 465 VAL A 112 REMARK 465 PRO A 113 REMARK 465 ARG A 114 REMARK 465 LEU B 104 REMARK 465 PRO B 105 REMARK 465 SER B 106 REMARK 465 ILE B 107 REMARK 465 LEU B 108 REMARK 465 SER B 109 REMARK 465 ASN B 110 REMARK 465 LEU B 111 REMARK 465 VAL B 112 REMARK 465 PRO B 113 REMARK 465 ARG B 114 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 MET A 1 CG SD CE REMARK 470 MET B 1 CG SD CE 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 68 -36.32 -140.30 REMARK 500 TRP B 19 10.56 -67.86 REMARK 500 ASN B 68 -35.69 -139.34 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 CA A 115 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 THR A 63 O REMARK 620 2 THR A 63 O 123.7 REMARK 620 3 VAL A 64 O 75.8 142.5 REMARK 620 4 VAL A 64 O 142.5 75.8 108.8 REMARK 620 5 THR B 63 O 78.7 73.4 81.1 138.4 REMARK 620 6 THR B 63 O 73.4 78.7 138.4 81.1 118.7 REMARK 620 7 VAL B 64 O 142.4 75.3 72.4 68.7 76.9 144.0 REMARK 620 8 VAL B 64 O 75.3 142.4 68.7 72.4 144.0 76.9 110.4 REMARK 620 N 1 2 3 4 5 6 7 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CA A 118 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 GLY A 67 O REMARK 620 2 GLY A 67 O 132.9 REMARK 620 3 GLY B 67 O 84.0 80.6 REMARK 620 4 GLY B 67 O 80.6 84.0 140.7 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 CA A 115 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NA A 116 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NA A 117 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 118 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC5 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NA A 119 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 2AHY RELATED DB: PDB REMARK 900 WILD TYPE PROTEIN COMPLEX WITH K ION REMARK 900 RELATED ID: 2AHZ RELATED DB: PDB REMARK 900 WILD TYPE PROTEIN COMPLEX WITH NA ION REMARK 900 RELATED ID: 2Q67 RELATED DB: PDB REMARK 900 NAK CHANNEL D66A MUTANT REMARK 900 RELATED ID: 2Q69 RELATED DB: PDB REMARK 900 RELATED ID: 2Q6A RELATED DB: PDB DBREF 2Q68 A 1 110 UNP Q81HW2 Q81HW2_BACCR 1 110 DBREF 2Q68 B 1 110 UNP Q81HW2 Q81HW2_BACCR 1 110 SEQADV 2Q68 ALA A 66 UNP Q81HW2 ASP 66 ENGINEERED MUTATION SEQADV 2Q68 GLU A 70 UNP Q81HW2 SER 70 ENGINEERED MUTATION SEQADV 2Q68 LEU A 111 UNP Q81HW2 EXPRESSION TAG SEQADV 2Q68 VAL A 112 UNP Q81HW2 EXPRESSION TAG SEQADV 2Q68 PRO A 113 UNP Q81HW2 EXPRESSION TAG SEQADV 2Q68 ARG A 114 UNP Q81HW2 EXPRESSION TAG SEQADV 2Q68 ALA B 66 UNP Q81HW2 ASP 66 ENGINEERED MUTATION SEQADV 2Q68 GLU B 70 UNP Q81HW2 SER 70 ENGINEERED MUTATION SEQADV 2Q68 LEU B 111 UNP Q81HW2 EXPRESSION TAG SEQADV 2Q68 VAL B 112 UNP Q81HW2 EXPRESSION TAG SEQADV 2Q68 PRO B 113 UNP Q81HW2 EXPRESSION TAG SEQADV 2Q68 ARG B 114 UNP Q81HW2 EXPRESSION TAG SEQRES 1 A 114 MET LEU SER PHE LEU LEU THR LEU LYS ARG MET LEU ARG SEQRES 2 A 114 ALA CYS LEU ARG ALA TRP LYS ASP LYS GLU PHE GLN VAL SEQRES 3 A 114 LEU PHE VAL LEU THR ILE LEU THR LEU ILE SER GLY THR SEQRES 4 A 114 ILE PHE TYR SER THR VAL GLU GLY LEU ARG PRO ILE ASP SEQRES 5 A 114 ALA LEU TYR PHE SER VAL VAL THR LEU THR THR VAL GLY SEQRES 6 A 114 ALA GLY ASN PHE GLU PRO GLN THR ASP PHE GLY LYS ILE SEQRES 7 A 114 PHE THR ILE LEU TYR ILE PHE ILE GLY ILE GLY LEU VAL SEQRES 8 A 114 PHE GLY PHE ILE HIS LYS LEU ALA VAL ASN VAL GLN LEU SEQRES 9 A 114 PRO SER ILE LEU SER ASN LEU VAL PRO ARG SEQRES 1 B 114 MET LEU SER PHE LEU LEU THR LEU LYS ARG MET LEU ARG SEQRES 2 B 114 ALA CYS LEU ARG ALA TRP LYS ASP LYS GLU PHE GLN VAL SEQRES 3 B 114 LEU PHE VAL LEU THR ILE LEU THR LEU ILE SER GLY THR SEQRES 4 B 114 ILE PHE TYR SER THR VAL GLU GLY LEU ARG PRO ILE ASP SEQRES 5 B 114 ALA LEU TYR PHE SER VAL VAL THR LEU THR THR VAL GLY SEQRES 6 B 114 ALA GLY ASN PHE GLU PRO GLN THR ASP PHE GLY LYS ILE SEQRES 7 B 114 PHE THR ILE LEU TYR ILE PHE ILE GLY ILE GLY LEU VAL SEQRES 8 B 114 PHE GLY PHE ILE HIS LYS LEU ALA VAL ASN VAL GLN LEU SEQRES 9 B 114 PRO SER ILE LEU SER ASN LEU VAL PRO ARG HET CA A 115 1 HET NA A 116 1 HET NA A 117 1 HET CA A 118 1 HET NA A 119 1 HETNAM CA CALCIUM ION HETNAM NA SODIUM ION FORMUL 3 CA 2(CA 2+) FORMUL 4 NA 3(NA 1+) FORMUL 8 HOH *17(H2 O) HELIX 1 1 MET A 1 TRP A 19 1 19 HELIX 2 2 ASP A 21 GLU A 46 1 26 HELIX 3 3 ARG A 49 THR A 62 1 14 HELIX 4 4 THR A 73 LEU A 104 1 32 HELIX 5 5 MET B 1 TRP B 19 1 19 HELIX 6 6 ASP B 21 VAL B 45 1 25 HELIX 7 7 ARG B 49 THR B 62 1 14 HELIX 8 8 THR B 73 ALA B 99 1 27 LINK O THR A 63 CA CA A 115 1555 1555 2.48 LINK O THR A 63 CA CA A 115 4566 1555 2.48 LINK O VAL A 64 CA CA A 115 1555 1555 2.84 LINK O VAL A 64 CA CA A 115 4566 1555 2.84 LINK O GLY A 67 CA CA A 118 1555 1555 2.09 LINK O GLY A 67 CA CA A 118 4566 1555 2.09 LINK CA CA A 115 O THR B 63 1555 1555 2.54 LINK CA CA A 115 O THR B 63 1555 4566 2.54 LINK CA CA A 115 O VAL B 64 1555 1555 2.99 LINK CA CA A 115 O VAL B 64 1555 4566 2.99 LINK CA CA A 118 O GLY B 67 1555 1555 2.09 LINK CA CA A 118 O GLY B 67 1555 4566 2.09 SITE 1 AC1 5 THR A 63 VAL A 64 NA A 116 THR B 63 SITE 2 AC1 5 VAL B 64 SITE 1 AC2 4 THR A 63 CA A 115 NA A 117 THR B 63 SITE 1 AC3 1 NA A 116 SITE 1 AC4 4 GLY A 67 ASN A 68 GLY B 67 ASN B 68 SITE 1 AC5 2 ALA A 66 ALA B 66 CRYST1 82.310 85.244 130.212 90.00 90.00 90.00 C 2 2 21 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 0.012149 0.000000 0.000000 0.00000 SCALE2 0.000000 0.011731 0.000000 0.00000 SCALE3 0.000000 0.000000 0.007680 0.00000