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 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 MASTER 370 0 5 8 0 0 6 6 0 0 0 18 END