HEADER TRANSPORT PROTEIN 28-JUL-05 2AHZ TITLE K+ COMPLEX OF THE NAK CHANNEL COMPND MOL_ID: 1; COMPND 2 MOLECULE: POTASSIUM CHANNEL PROTEIN; COMPND 3 CHAIN: A, B; COMPND 4 ENGINEERED: 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: XL-1 BLUE; SOURCE 7 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 8 EXPRESSION_SYSTEM_PLASMID: PQE 60 KEYWDS INVERTED TEEPEE, HELIX BUNDLE, TETRAMER, CENTRAL CAVITY, ION BINDING, KEYWDS 2 TRANSPORT PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR N.SHI,S.YE,A.ALAM,L.CHEN,Y.JIANG REVDAT 6 23-AUG-23 2AHZ 1 REMARK LINK REVDAT 5 13-JUL-11 2AHZ 1 VERSN REVDAT 4 24-FEB-09 2AHZ 1 VERSN REVDAT 3 04-APR-06 2AHZ 1 JRNL REVDAT 2 28-MAR-06 2AHZ 1 JRNL REVDAT 1 07-FEB-06 2AHZ 0 JRNL AUTH N.SHI,S.YE,A.ALAM,L.CHEN,Y.JIANG JRNL TITL ATOMIC STRUCTURE OF A NA+- AND K+-CONDUCTING CHANNEL. JRNL REF NATURE V. 440 570 2006 JRNL REFN ISSN 0028-0836 JRNL PMID 16467789 JRNL DOI 10.1038/NATURE04508 REMARK 2 REMARK 2 RESOLUTION. 2.80 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CNS 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) : 2.80 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 20.00 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) (%) : 98.7 REMARK 3 NUMBER OF REFLECTIONS : 11045 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 : 0.280 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 9.900 REMARK 3 FREE R VALUE TEST SET COUNT : 1142 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 : 10 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 2.80 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.90 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 94.30 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 825 REMARK 3 BIN R VALUE (WORKING SET) : 0.2836 REMARK 3 BIN FREE R VALUE : 0.3712 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 10.10 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 93 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 : 1653 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 5 REMARK 3 SOLVENT ATOMS : 15 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 62.53 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 78.02 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 11.92700 REMARK 3 B22 (A**2) : 7.03400 REMARK 3 B33 (A**2) : -17.96100 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) : 0.34 REMARK 3 ESD FROM SIGMAA (A) : 0.31 REMARK 3 LOW RESOLUTION CUTOFF (A) : 5.00 REMARK 3 REMARK 3 CROSS-VALIDATED ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM C-V LUZZATI PLOT (A) : 0.42 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.33 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.007 REMARK 3 BOND ANGLES (DEGREES) : 1.160 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 17.77 REMARK 3 IMPROPER ANGLES (DEGREES) : 0.900 REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : RESTRAINED REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. RMS SIGMA REMARK 3 MAIN-CHAIN BOND (A**2) : 5.936 ; NULL REMARK 3 MAIN-CHAIN ANGLE (A**2) : 7.972 ; NULL REMARK 3 SIDE-CHAIN BOND (A**2) : 10.223; NULL REMARK 3 SIDE-CHAIN ANGLE (A**2) : 12.751; NULL REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED : FLAT MODEL REMARK 3 KSOL : 0.30 REMARK 3 BSOL : 54.95 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 : PROTEIN.TOP REMARK 3 TOPOLOGY FILE 2 : WATER.TOP REMARK 3 TOPOLOGY FILE 3 : ION.TOP REMARK 3 TOPOLOGY FILE 4 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 2AHZ COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 29-AUG-05. REMARK 100 THE DEPOSITION ID IS D_1000033917. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 19-APR-05 REMARK 200 TEMPERATURE (KELVIN) : 100.0 REMARK 200 PH : 8.00 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) : 1.5498 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : ADSC QUANTUM 4 REMARK 200 INTENSITY-INTEGRATION SOFTWARE : HKL-2000 REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 11424 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.800 REMARK 200 RESOLUTION RANGE LOW (A) : 20.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 98.7 REMARK 200 DATA REDUNDANCY : 8.800 REMARK 200 R MERGE (I) : 0.05100 REMARK 200 R SYM (I) : 0.05100 REMARK 200 FOR THE DATA SET : 39.0000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.80 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.90 REMARK 200 COMPLETENESS FOR SHELL (%) : 94.3 REMARK 200 DATA REDUNDANCY IN SHELL : 5.80 REMARK 200 R MERGE FOR SHELL (I) : 0.47400 REMARK 200 R SYM FOR SHELL (I) : 0.47400 REMARK 200 FOR SHELL : 2.700 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: CNS REMARK 200 STARTING MODEL: PDB ENTRY 2AHY REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 72.00 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 4.38 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PEG 400, KCL, CACL2, TRIS.HCL, T REMARK 280 -BUTANOL, N-DECYL-BETA-D-MALTOPYRANOSIDE, PH 8.0, VAPOR REMARK 280 DIFFUSION, SITTING DROP, TEMPERATURE 293 K, PH 8.00 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 64.80400 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 64.80400 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 41.10150 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 42.77050 REMARK 290 SMTRY3 5 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 6 -1.000000 0.000000 0.000000 41.10150 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 42.77050 REMARK 290 SMTRY3 6 0.000000 0.000000 1.000000 64.80400 REMARK 290 SMTRY1 7 -1.000000 0.000000 0.000000 41.10150 REMARK 290 SMTRY2 7 0.000000 1.000000 0.000000 42.77050 REMARK 290 SMTRY3 7 0.000000 0.000000 -1.000000 64.80400 REMARK 290 SMTRY1 8 1.000000 0.000000 0.000000 41.10150 REMARK 290 SMTRY2 8 0.000000 -1.000000 0.000000 42.77050 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 CRYSTALLOGRAPHIC TWO FOLD: X , - REMARK 300 Y , -Z 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: 9620 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 21020 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -95.0 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 85.54100 REMARK 350 BIOMT3 2 0.000000 0.000000 -1.000000 129.60800 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 111 LIES ON A SPECIAL POSITION. REMARK 375 K K A 112 LIES ON A SPECIAL POSITION. REMARK 375 K K A 113 LIES ON A SPECIAL POSITION. REMARK 375 CA CA A 114 LIES ON A SPECIAL POSITION. REMARK 375 K K B 111 LIES ON A SPECIAL POSITION. REMARK 375 HOH A 115 LIES ON A SPECIAL POSITION. REMARK 375 HOH B 112 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 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 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 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 THR A 44 -70.82 -76.10 REMARK 500 LEU A 104 -88.90 -78.00 REMARK 500 TRP B 19 0.70 -62.00 REMARK 500 ASN B 68 -59.32 -126.09 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 111 K REMARK 620 N RES CSSEQI ATOM REMARK 620 1 THR A 63 O REMARK 620 2 THR A 63 O 104.0 REMARK 620 3 VAL A 64 O 76.1 142.7 REMARK 620 4 VAL A 64 O 142.7 76.2 126.3 REMARK 620 5 K A 112 K 52.0 52.0 116.8 116.8 REMARK 620 6 K A 112 K 52.0 52.0 116.8 116.8 0.0 REMARK 620 7 THR B 63 O 71.2 63.9 81.8 134.7 51.7 51.7 REMARK 620 8 THR B 63 O 63.8 71.2 134.6 81.8 51.7 51.7 103.4 REMARK 620 9 VAL B 64 O 140.2 80.6 77.3 77.1 119.5 119.5 76.2 148.1 REMARK 620 N 1 2 3 4 5 6 7 8 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 K A 112 K REMARK 620 N RES CSSEQI ATOM REMARK 620 1 THR A 63 OG1 REMARK 620 2 THR A 63 O 65.1 REMARK 620 3 THR A 63 OG1 130.9 164.0 REMARK 620 4 THR A 63 O 164.0 98.9 65.1 REMARK 620 5 THR B 63 O 109.2 69.5 101.1 62.4 REMARK 620 6 THR B 63 OG1 82.2 105.5 79.5 103.2 61.3 REMARK 620 7 THR B 63 O 101.1 62.3 109.2 69.5 102.4 163.3 REMARK 620 8 THR B 63 OG1 79.5 103.2 82.2 105.5 163.3 135.1 61.3 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 114 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 GLY A 67 O REMARK 620 2 GLY A 67 O 107.2 REMARK 620 3 GLY B 67 O 69.5 71.7 REMARK 620 4 GLY B 67 O 71.7 69.5 112.1 REMARK 620 N 1 2 3 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 K A 113 K REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HOH A 116 O REMARK 620 2 HOH A 116 O 172.0 REMARK 620 3 HOH B 113 O 69.7 110.6 REMARK 620 4 HOH B 113 O 110.6 69.7 176.0 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 K A 111 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE K A 112 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 114 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 2AHY RELATED DB: PDB REMARK 900 NA+ COMPLEX OF THE NAK CHANNEL DBREF 2AHZ A 1 110 GB 29894393 AAP07683 1 110 DBREF 2AHZ B 1 110 GB 29894393 AAP07683 1 110 SEQRES 1 A 110 MET LEU SER PHE LEU LEU THR LEU LYS ARG MET LEU ARG SEQRES 2 A 110 ALA CYS LEU ARG ALA TRP LYS ASP LYS GLU PHE GLN VAL SEQRES 3 A 110 LEU PHE VAL LEU THR ILE LEU THR LEU ILE SER GLY THR SEQRES 4 A 110 ILE PHE TYR SER THR VAL GLU GLY LEU ARG PRO ILE ASP SEQRES 5 A 110 ALA LEU TYR PHE SER VAL VAL THR LEU THR THR VAL GLY SEQRES 6 A 110 ASP GLY ASN PHE SER PRO GLN THR ASP PHE GLY LYS ILE SEQRES 7 A 110 PHE THR ILE LEU TYR ILE PHE ILE GLY ILE GLY LEU VAL SEQRES 8 A 110 PHE GLY PHE ILE HIS LYS LEU ALA VAL ASN VAL GLN LEU SEQRES 9 A 110 PRO SER ILE LEU SER ASN SEQRES 1 B 110 MET LEU SER PHE LEU LEU THR LEU LYS ARG MET LEU ARG SEQRES 2 B 110 ALA CYS LEU ARG ALA TRP LYS ASP LYS GLU PHE GLN VAL SEQRES 3 B 110 LEU PHE VAL LEU THR ILE LEU THR LEU ILE SER GLY THR SEQRES 4 B 110 ILE PHE TYR SER THR VAL GLU GLY LEU ARG PRO ILE ASP SEQRES 5 B 110 ALA LEU TYR PHE SER VAL VAL THR LEU THR THR VAL GLY SEQRES 6 B 110 ASP GLY ASN PHE SER PRO GLN THR ASP PHE GLY LYS ILE SEQRES 7 B 110 PHE THR ILE LEU TYR ILE PHE ILE GLY ILE GLY LEU VAL SEQRES 8 B 110 PHE GLY PHE ILE HIS LYS LEU ALA VAL ASN VAL GLN LEU SEQRES 9 B 110 PRO SER ILE LEU SER ASN HET K A 111 1 HET K A 112 1 HET K A 113 1 HET CA A 114 1 HET K B 111 1 HETNAM K POTASSIUM ION HETNAM CA CALCIUM ION FORMUL 3 K 4(K 1+) FORMUL 6 CA CA 2+ FORMUL 8 HOH *15(H2 O) HELIX 1 1 MET A 1 TRP A 19 1 19 HELIX 2 2 ASP A 21 VAL A 45 1 25 HELIX 3 3 ARG A 49 THR A 62 1 14 HELIX 4 4 THR A 73 GLN A 103 1 31 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 VAL B 102 1 30 LINK O THR A 63 K K A 111 1555 1555 2.68 LINK O THR A 63 K K A 111 4566 1555 2.68 LINK OG1 THR A 63 K K A 112 1555 1555 2.96 LINK O THR A 63 K K A 112 1555 1555 2.78 LINK OG1 THR A 63 K K A 112 4566 1555 2.96 LINK O THR A 63 K K A 112 4566 1555 2.78 LINK O VAL A 64 K K A 111 1555 1555 3.00 LINK O VAL A 64 K K A 111 4566 1555 3.00 LINK O GLY A 67 CA CA A 114 1555 1555 2.59 LINK O GLY A 67 CA CA A 114 4566 1555 2.59 LINK K K A 111 K K A 112 1555 1555 3.46 LINK K K A 111 K K A 112 1555 4566 3.46 LINK K K A 111 O THR B 63 1555 1555 2.77 LINK K K A 111 O THR B 63 1555 4566 2.77 LINK K K A 111 O VAL B 64 1555 1555 3.08 LINK K K A 111 O VAL B 64 1555 4566 3.08 LINK K K A 112 O THR B 63 1555 1555 2.79 LINK K K A 112 OG1 THR B 63 1555 1555 3.12 LINK K K A 112 O THR B 63 1555 4566 2.79 LINK K K A 112 OG1 THR B 63 1555 4566 3.12 LINK K K A 113 O HOH A 116 1555 1555 3.19 LINK K K A 113 O HOH A 116 1555 4566 3.19 LINK K K A 113 O HOH B 113 1555 1555 3.55 LINK K K A 113 O HOH B 113 1555 4566 3.55 LINK CA CA A 114 O GLY B 67 1555 1555 2.41 LINK CA CA A 114 O GLY B 67 1555 4566 2.41 SITE 1 AC1 5 THR A 63 VAL A 64 K A 112 THR B 63 SITE 2 AC1 5 VAL B 64 SITE 1 AC2 3 THR A 63 K A 111 THR B 63 SITE 1 AC3 2 GLY A 67 GLY B 67 CRYST1 82.203 85.541 129.608 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 0.012165 0.000000 0.000000 0.00000 SCALE2 0.000000 0.011690 0.000000 0.00000 SCALE3 0.000000 0.000000 0.007716 0.00000