PDB Short entry for 3KVT HEADER POTASSIUM CHANNEL 25-SEP-98 3KVT TITLE TETRAMERIZATION DOMAIN FROM AKV3.1 (SHAW-SUBFAMILY) VOLTAGE-GATED TITLE 2 POTASSIUM CHANNEL COMPND MOL_ID: 1; COMPND 2 MOLECULE: POTASSIUM CHANNEL PROTEIN SHAW; COMPND 3 CHAIN: A; COMPND 4 FRAGMENT: TETRAMERIZATION (T1) DOMAIN; COMPND 5 ENGINEERED: YES; COMPND 6 MUTATION: YES; COMPND 7 OTHER_DETAILS: ONE ZN2+ PER MONOMER TETRAHEDRALLY COORDINATED AT COMPND 8 MONOMER-MONOMER INTERFACE SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: APLYSIA CALIFORNICA; SOURCE 3 ORGANISM_COMMON: CALIFORNIA SEA HARE; SOURCE 4 ORGANISM_TAXID: 6500; SOURCE 5 CELL_LINE: BL21 PLYS S; SOURCE 6 TISSUE: NERVE; SOURCE 7 CELLULAR_LOCATION: MEMBRANE; SOURCE 8 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 9 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 10 EXPRESSION_SYSTEM_STRAIN: PET; SOURCE 11 EXPRESSION_SYSTEM_CELL_LINE: BL21 PLYS S; SOURCE 12 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 13 EXPRESSION_SYSTEM_PLASMID: PET16B KEYWDS POTASSIUM CHANNEL, TETRAMERIZATION DOMAIN, MOLECULAR RECOGNITION, KEYWDS 2 ZINC-BINDING EXPDTA X-RAY DIFFRACTION AUTHOR K.A.BIXBY,M.H.NANAO,N.V.SHEN,A.KREUSCH,H.BELLAMY,P.J.PFAFFINGER, AUTHOR 2 S.CHOE REVDAT 7 03-APR-24 3KVT 1 REMARK REVDAT 6 21-FEB-24 3KVT 1 REMARK REVDAT 5 03-NOV-21 3KVT 1 REMARK SEQADV LINK REVDAT 4 13-JUL-11 3KVT 1 VERSN REVDAT 3 24-FEB-09 3KVT 1 VERSN REVDAT 2 15-JUN-99 3KVT 3 HET COMPND REMARK HETATM REVDAT 2 2 3 DBREF SEQADV TER LINK REVDAT 2 3 3 ATOM SEQRES JRNL SHEET REVDAT 2 4 3 HELIX HETSYN CONECT HETNAM REVDAT 1 13-JAN-99 3KVT 0 JRNL AUTH K.A.BIXBY,M.H.NANAO,N.V.SHEN,A.KREUSCH,H.BELLAMY, JRNL AUTH 2 P.J.PFAFFINGER,S.CHOE JRNL TITL ZN2+-BINDING AND MOLECULAR DETERMINANTS OF TETRAMERIZATION JRNL TITL 2 IN VOLTAGE-GATED K+ CHANNELS. JRNL REF NAT.STRUCT.BIOL. V. 6 38 1999 JRNL REFN ISSN 1072-8368 JRNL PMID 9886290 JRNL DOI 10.1038/4911 REMARK 2 REMARK 2 RESOLUTION. 2.00 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : X-PLOR 3.851 REMARK 3 AUTHORS : BRUNGER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.00 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 25.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : 1000000.000 REMARK 3 DATA CUTOFF LOW (ABS(F)) : 0.0010 REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 99.7 REMARK 3 NUMBER OF REFLECTIONS : 11134 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) : 0.225 REMARK 3 FREE R VALUE : 0.238 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.200 REMARK 3 FREE R VALUE TEST SET COUNT : 577 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : 0.010 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) : 2.00 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.07 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 99.30 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 1012 REMARK 3 BIN R VALUE (WORKING SET) : 0.2860 REMARK 3 BIN FREE R VALUE : 0.3160 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 5.90 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 63 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : 0.040 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 834 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 1 REMARK 3 SOLVENT ATOMS : 67 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 18.70 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 28.30 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : NULL REMARK 3 B22 (A**2) : NULL REMARK 3 B33 (A**2) : NULL REMARK 3 B12 (A**2) : NULL REMARK 3 B13 (A**2) : NULL REMARK 3 B23 (A**2) : NULL REMARK 3 REMARK 3 ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM LUZZATI PLOT (A) : 0.25 REMARK 3 ESD FROM SIGMAA (A) : 0.24 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) : 0.27 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.28 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.007 REMARK 3 BOND ANGLES (DEGREES) : 1.100 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 24.00 REMARK 3 IMPROPER ANGLES (DEGREES) : 1.090 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) : 1.700 ; 1.500 REMARK 3 MAIN-CHAIN ANGLE (A**2) : 2.800 ; 2.000 REMARK 3 SIDE-CHAIN BOND (A**2) : 2.870 ; 2.000 REMARK 3 SIDE-CHAIN ANGLE (A**2) : 4.430 ; 2.500 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 : PARHCSDX.PRO REMARK 3 PARAMETER FILE 2 : PARAM19.SOL REMARK 3 PARAMETER FILE 3 : PARAM21.ION REMARK 3 PARAMETER FILE 4 : NULL REMARK 3 TOPOLOGY FILE 1 : TOPHCSDX.PRO REMARK 3 TOPOLOGY FILE 2 : TOPH19.SOL REMARK 3 TOPOLOGY FILE 3 : TOPH21.ION REMARK 3 TOPOLOGY FILE 4 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 3KVT COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY BNL. REMARK 100 THE DEPOSITION ID IS D_1000179028. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : APR-97 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 8.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : SSRL REMARK 200 BEAMLINE : BL7-1 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.08 REMARK 200 MONOCHROMATOR : SI(111) REMARK 200 OPTICS : PLATINUM COATED MIRRORS REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : MARRESEARCH REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 11135 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.000 REMARK 200 RESOLUTION RANGE LOW (A) : 25.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.8 REMARK 200 DATA REDUNDANCY : 11.30 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.05700 REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : NULL REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.00 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.07 REMARK 200 COMPLETENESS FOR SHELL (%) : 99.5 REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : 0.40100 REMARK 200 <I/SIGMA(I)> FOR SHELL : NULL REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: NULL REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: X-PLOR 3.851 REMARK 200 STARTING MODEL: 1AP61 REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 51.00 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.66 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PH 8.5 REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: I 4 2 2 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,Y,-Z REMARK 290 6555 X,-Y,-Z REMARK 290 7555 Y,X,-Z REMARK 290 8555 -Y,-X,-Z REMARK 290 9555 X+1/2,Y+1/2,Z+1/2 REMARK 290 10555 -X+1/2,-Y+1/2,Z+1/2 REMARK 290 11555 -Y+1/2,X+1/2,Z+1/2 REMARK 290 12555 Y+1/2,-X+1/2,Z+1/2 REMARK 290 13555 -X+1/2,Y+1/2,-Z+1/2 REMARK 290 14555 X+1/2,-Y+1/2,-Z+1/2 REMARK 290 15555 Y+1/2,X+1/2,-Z+1/2 REMARK 290 16555 -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 0.00000 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 5 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 6 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 6 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 7 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY2 7 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 7 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 8 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY2 8 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 8 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 9 1.000000 0.000000 0.000000 33.59550 REMARK 290 SMTRY2 9 0.000000 1.000000 0.000000 33.59550 REMARK 290 SMTRY3 9 0.000000 0.000000 1.000000 69.45000 REMARK 290 SMTRY1 10 -1.000000 0.000000 0.000000 33.59550 REMARK 290 SMTRY2 10 0.000000 -1.000000 0.000000 33.59550 REMARK 290 SMTRY3 10 0.000000 0.000000 1.000000 69.45000 REMARK 290 SMTRY1 11 0.000000 -1.000000 0.000000 33.59550 REMARK 290 SMTRY2 11 1.000000 0.000000 0.000000 33.59550 REMARK 290 SMTRY3 11 0.000000 0.000000 1.000000 69.45000 REMARK 290 SMTRY1 12 0.000000 1.000000 0.000000 33.59550 REMARK 290 SMTRY2 12 -1.000000 0.000000 0.000000 33.59550 REMARK 290 SMTRY3 12 0.000000 0.000000 1.000000 69.45000 REMARK 290 SMTRY1 13 -1.000000 0.000000 0.000000 33.59550 REMARK 290 SMTRY2 13 0.000000 1.000000 0.000000 33.59550 REMARK 290 SMTRY3 13 0.000000 0.000000 -1.000000 69.45000 REMARK 290 SMTRY1 14 1.000000 0.000000 0.000000 33.59550 REMARK 290 SMTRY2 14 0.000000 -1.000000 0.000000 33.59550 REMARK 290 SMTRY3 14 0.000000 0.000000 -1.000000 69.45000 REMARK 290 SMTRY1 15 0.000000 1.000000 0.000000 33.59550 REMARK 290 SMTRY2 15 1.000000 0.000000 0.000000 33.59550 REMARK 290 SMTRY3 15 0.000000 0.000000 -1.000000 69.45000 REMARK 290 SMTRY1 16 0.000000 -1.000000 0.000000 33.59550 REMARK 290 SMTRY2 16 -1.000000 0.000000 0.000000 33.59550 REMARK 290 SMTRY3 16 0.000000 0.000000 -1.000000 69.45000 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 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: 6480 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 18350 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -173.0 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 134.38200 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 67.19100 REMARK 350 BIOMT2 3 1.000000 0.000000 0.000000 -67.19100 REMARK 350 BIOMT3 3 0.000000 0.000000 1.000000 0.00000 REMARK 350 BIOMT1 4 0.000000 1.000000 0.000000 67.19100 REMARK 350 BIOMT2 4 -1.000000 0.000000 0.000000 67.19100 REMARK 350 BIOMT3 4 0.000000 0.000000 1.000000 0.00000 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 6 REMARK 465 ASP A 7 REMARK 465 ALA A 8 REMARK 465 ASP A 112 REMARK 465 THR A 113 REMARK 465 GLN A 114 REMARK 465 GLU A 115 REMARK 465 THR A 116 REMARK 465 LEU A 117 REMARK 465 ALA A 118 REMARK 465 VAL A 119 REMARK 465 LEU A 120 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 GLU A 9 CG CD OE1 OE2 REMARK 470 MET A 105 CG SD CE REMARK 470 HIS A 110 CG ND1 CD2 CE1 NE2 REMARK 470 ARG A 111 CG CD NE CZ NH1 NH2 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 51 67.84 60.94 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 ZN A 179 ZN REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 75 ND1 REMARK 620 2 CYS A 81 SG 93.8 REMARK 620 3 CYS A 102 SG 96.0 115.5 REMARK 620 4 CYS A 103 SG 115.9 106.9 124.4 REMARK 620 N 1 2 3 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: ZN REMARK 800 EVIDENCE_CODE: UNKNOWN REMARK 800 SITE_DESCRIPTION: ONE ZN2+ BOUND PER MONOMER AT THE MONOMER REMARK 800 -MONOMER INTERFACE PRESENCE CONFIRMED BY ANOMALOUS DIFFERENCE REMARK 800 PATTERSON. LIGANDING SEQUENCE HIGHLY CONSERVED IN ALL VOLTAGE- REMARK 800 GATED POTASSIUM CHANNELS WITH THE EXCEPTION OF THE SHAKER REMARK 800 SUBFAMILY. REMARK 800 REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ZN A 179 DBREF 3KVT A 6 120 UNP O76457 O76457 1 115 SEQADV 3KVT ILE A 13 UNP O76457 VAL 8 CONFLICT SEQADV 3KVT ILE A 14 UNP O76457 LEU 9 CONFLICT SEQADV 3KVT GLY A 42 UNP O76457 ALA 37 ENGINEERED MUTATION SEQADV 3KVT MET A 43 UNP O76457 LEU 38 ENGINEERED MUTATION SEQADV 3KVT LEU A 44 UNP O76457 ALA 39 ENGINEERED MUTATION SEQADV 3KVT VAL A 49 UNP O76457 ILE 44 CONFLICT SEQADV 3KVT ILE A 65 UNP O76457 VAL 60 CONFLICT SEQADV 3KVT ILE A 66 UNP O76457 LEU 61 CONFLICT SEQADV 3KVT SER A 71 UNP O76457 THR 66 CONFLICT SEQADV 3KVT PHE A 91 UNP O76457 TYR 86 CONFLICT SEQRES 1 A 115 MET ASP ALA GLU ASN ARG VAL ILE ILE ASN VAL GLY GLY SEQRES 2 A 115 ILE ARG HIS GLU THR TYR LYS ALA THR LEU LYS LYS ILE SEQRES 3 A 115 PRO ALA THR ARG LEU SER ARG LEU THR GLU GLY MET LEU SEQRES 4 A 115 ASN TYR ASP PRO VAL LEU ASN GLU TYR PHE PHE ASP ARG SEQRES 5 A 115 HIS PRO GLY VAL PHE ALA GLN ILE ILE ASN TYR TYR ARG SEQRES 6 A 115 SER GLY LYS LEU HIS TYR PRO THR ASP VAL CYS GLY PRO SEQRES 7 A 115 LEU PHE GLU GLU GLU LEU GLU PHE TRP GLY LEU ASP SER SEQRES 8 A 115 ASN GLN VAL GLU PRO CYS CYS TRP MET THR TYR THR ALA SEQRES 9 A 115 HIS ARG ASP THR GLN GLU THR LEU ALA VAL LEU HET ZN A 179 1 HETNAM ZN ZINC ION FORMUL 2 ZN ZN 2+ FORMUL 3 HOH *67(H2 O) HELIX 1 1 LYS A 25 LYS A 30 1 6 HELIX 2 2 VAL A 61 SER A 71 5 11 HELIX 3 3 GLY A 82 TRP A 92 1 11 HELIX 4 4 SER A 96 GLN A 98 5 3 HELIX 5 5 PRO A 101 CYS A 103 5 3 HELIX 6 6 MET A 105 THR A 108 1 4 SHEET 1 A 3 ILE A 19 TYR A 24 0 SHEET 2 A 3 ARG A 11 VAL A 16 -1 N VAL A 16 O ILE A 19 SHEET 3 A 3 TYR A 53 PHE A 55 1 N TYR A 53 O ASN A 15 LINK ND1 HIS A 75 ZN ZN A 179 1555 1555 2.30 LINK SG CYS A 81 ZN ZN A 179 4665 1555 2.36 LINK SG CYS A 102 ZN ZN A 179 1555 1555 2.49 LINK SG CYS A 103 ZN ZN A 179 1555 1555 2.26 SITE 1 ZN 4 HIS A 75 CYS A 81 CYS A 102 CYS A 103 SITE 1 AC1 4 HIS A 75 CYS A 81 CYS A 102 CYS A 103 CRYST1 67.191 67.191 138.900 90.00 90.00 90.00 I 4 2 2 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 0.014883 0.000000 0.000000 0.00000 SCALE2 0.000000 0.014883 0.000000 0.00000 SCALE3 0.000000 0.000000 0.007199 0.00000