PDB Short entry for 1NN7 HEADER MEMBRANE PROTEIN 13-JAN-03 1NN7 TITLE CRYSTAL STRUCTURE OF THE TETRAMERIZATION DOMAIN OF THE SHAL VOLTAGE- TITLE 2 GATED POTASSIUM CHANNEL COMPND MOL_ID: 1; COMPND 2 MOLECULE: POTASSIUM CHANNEL KV4.2; COMPND 3 CHAIN: A; COMPND 4 FRAGMENT: N-TERMINAL DOMAIN (RESIDUES 42-146), TETRAMERIZATION COMPND 5 DOMAIN; COMPND 6 SYNONYM: SHAL VOLTAGE-GATED POTASSIUM CHANNEL; COMPND 7 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: RATTUS NORVEGICUS; SOURCE 3 ORGANISM_COMMON: NORWAY RAT; SOURCE 4 ORGANISM_TAXID: 10116; SOURCE 5 GENE: KCND2; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 511693; SOURCE 8 EXPRESSION_SYSTEM_STRAIN: BL21; SOURCE 9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 10 EXPRESSION_SYSTEM_PLASMID: PHIS8(MODIFIED PET28) KEYWDS T1, TETERAMERIZATION DOMAIN, VOLTAGE GATED POTASSIUM CHANNEL, KV4.2, KEYWDS 2 SHAL, MEMBRANE PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR W.ZHOU,S.CHOE REVDAT 6 16-AUG-23 1NN7 1 REMARK LINK REVDAT 5 04-APR-18 1NN7 1 REMARK REVDAT 4 13-JUL-11 1NN7 1 VERSN REVDAT 3 24-FEB-09 1NN7 1 VERSN REVDAT 2 29-JUL-03 1NN7 1 JRNL REVDAT 1 15-JUL-03 1NN7 0 JRNL AUTH M.H.NANAO,W.ZHOU,P.J.PFAFFINGER,S.CHOE JRNL TITL DETERMINING THE BASIS OF CHANNEL-TETRAMERIZATION SPECIFICITY JRNL TITL 2 BY X-RAY CRYSTALLOGRAPHY AND A SEQUENCE-COMPARISON JRNL TITL 3 ALGORITHM: FAMILY VALUES (FAMVAL) JRNL REF PROC.NATL.ACAD.SCI.USA V. 100 8670 2003 JRNL REFN ISSN 0027-8424 JRNL PMID 12835418 JRNL DOI 10.1073/PNAS.1432840100 REMARK 2 REMARK 2 RESOLUTION. 2.10 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CNS 1.0 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) : 2.10 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 27.40 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) (%) : 100.0 REMARK 3 NUMBER OF REFLECTIONS : 6851 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) : 0.230 REMARK 3 FREE R VALUE : 0.277 REMARK 3 FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 FREE R VALUE TEST SET COUNT : 753 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) : 2.10 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.15 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 100.0 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : NULL REMARK 3 BIN R VALUE (WORKING SET) : 0.2598 REMARK 3 BIN FREE R VALUE : 0.3548 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 BIN FREE R VALUE TEST SET COUNT : 43 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 : 887 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 1 REMARK 3 SOLVENT ATOMS : 57 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 38.20 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 29.20 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 0.64400 REMARK 3 B22 (A**2) : 0.64400 REMARK 3 B33 (A**2) : -1.28900 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) : 0.27 REMARK 3 ESD FROM SIGMAA (A) : 0.19 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) : 0.35 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.26 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.006 REMARK 3 BOND ANGLES (DEGREES) : 1.226 REMARK 3 DIHEDRAL ANGLES (DEGREES) : NULL REMARK 3 IMPROPER ANGLES (DEGREES) : NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : ISOTROPIC REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. RMS SIGMA REMARK 3 MAIN-CHAIN BOND (A**2) : 1.319 ; NULL REMARK 3 MAIN-CHAIN ANGLE (A**2) : 2.113 ; 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 : NULL 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 : NULL REMARK 3 TOPOLOGY FILE 1 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1NN7 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 14-FEB-03. REMARK 100 THE DEPOSITION ID IS D_1000018027. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 19-AUG-00 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 8.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : N REMARK 200 RADIATION SOURCE : ROTATING ANODE REMARK 200 BEAMLINE : NULL REMARK 200 X-RAY GENERATOR MODEL : MACSCIENCE M18X REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418 REMARK 200 MONOCHROMATOR : DOUBLE-MIRROR REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : MACSCIENCE REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 7033 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.100 REMARK 200 RESOLUTION RANGE LOW (A) : 99.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.5 REMARK 200 DATA REDUNDANCY : 8.740 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.05500 REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 41.5400 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.10 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.18 REMARK 200 COMPLETENESS FOR SHELL (%) : 97.0 REMARK 200 DATA REDUNDANCY IN SHELL : 8.30 REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : 0.21600 REMARK 200 <I/SIGMA(I)> FOR SHELL : 7.550 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: EPMR REMARK 200 STARTING MODEL: POLY-SERINE MODEL OF PDB ENTRY 3KVT REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 43.24 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.17 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PEG 4000, MAGNESIUM CHLORIDE, TRIS, PH REMARK 280 8.5, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 296K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 4 21 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+1/2,X+1/2,Z REMARK 290 4555 Y+1/2,-X+1/2,Z REMARK 290 5555 -X+1/2,Y+1/2,-Z REMARK 290 6555 X+1/2,-Y+1/2,-Z REMARK 290 7555 Y,X,-Z REMARK 290 8555 -Y,-X,-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 0.00000 REMARK 290 SMTRY1 3 0.000000 -1.000000 0.000000 29.99950 REMARK 290 SMTRY2 3 1.000000 0.000000 0.000000 29.99950 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 4 0.000000 1.000000 0.000000 29.99950 REMARK 290 SMTRY2 4 -1.000000 0.000000 0.000000 29.99950 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 5 -1.000000 0.000000 0.000000 29.99950 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 29.99950 REMARK 290 SMTRY3 5 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 6 1.000000 0.000000 0.000000 29.99950 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 29.99950 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 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 300 REMARK: THE BIOLOGICAL ASSEMBLY IS A TETRAMER GENEREATED FROM THE REMARK 300 MONOMER IN THE ASYMMETRIC UNIT BY THE OPERATIONS: Y-1/2,-X+3/2,Z, 1- REMARK 300 X,2-Y,Z AND 3/2-Y,1/2+X,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 REMARK 350 TOTAL BURIED SURFACE AREA: 6450 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 19870 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -170.0 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 59.99900 REMARK 350 BIOMT2 2 0.000000 -1.000000 0.000000 119.99800 REMARK 350 BIOMT3 2 0.000000 0.000000 1.000000 0.00000 REMARK 350 BIOMT1 3 0.000000 -1.000000 0.000000 89.99850 REMARK 350 BIOMT2 3 1.000000 0.000000 0.000000 29.99950 REMARK 350 BIOMT3 3 0.000000 0.000000 1.000000 0.00000 REMARK 350 BIOMT1 4 0.000000 1.000000 0.000000 -29.99950 REMARK 350 BIOMT2 4 -1.000000 0.000000 0.000000 89.99850 REMARK 350 BIOMT3 4 0.000000 0.000000 1.000000 0.00000 REMARK 350 REMARK 350 BIOMOLECULE: 2 REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC REMARK 350 SOFTWARE USED: PQS 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 0.000000 -1.000000 0.000000 59.99900 REMARK 350 BIOMT2 2 -1.000000 0.000000 0.000000 59.99900 REMARK 350 BIOMT3 2 0.000000 0.000000 -1.000000 0.00000 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 LYS A 103 CG CD CE NZ REMARK 470 ARG A 108 CG CD NE CZ NH1 NH2 REMARK 470 GLU A 136 CG CD OE1 OE2 REMARK 470 GLU A 146 CG CD OE1 OE2 REMARK 480 REMARK 480 ZERO OCCUPANCY ATOM REMARK 480 THE FOLLOWING RESIDUES HAVE ATOMS MODELED WITH ZERO REMARK 480 OCCUPANCY. THE LOCATION AND PROPERTIES OF THESE ATOMS REMARK 480 MAY NOT BE RELIABLE. (M=MODEL NUMBER; RES=RESIDUE NAME; REMARK 480 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE): REMARK 480 M RES C SSEQI ATOMS REMARK 480 TYR A 134 CD1 CD2 CE1 CE2 CZ OH REMARK 480 LYS A 138 CG CD CE NZ REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS REMARK 500 REMARK 500 THE FOLLOWING ATOMS THAT ARE RELATED BY CRYSTALLOGRAPHIC REMARK 500 SYMMETRY ARE IN CLOSE CONTACT. AN ATOM LOCATED WITHIN 0.15 REMARK 500 ANGSTROMS OF A SYMMETRY RELATED ATOM IS ASSUMED TO BE ON A REMARK 500 SPECIAL POSITION AND IS, THEREFORE, LISTED IN REMARK 375 REMARK 500 INSTEAD OF REMARK 500. ATOMS WITH NON-BLANK ALTERNATE REMARK 500 LOCATION INDICATORS ARE NOT INCLUDED IN THE CALCULATIONS. REMARK 500 REMARK 500 DISTANCE CUTOFF: REMARK 500 2.2 ANGSTROMS FOR CONTACTS NOT INVOLVING HYDROGEN ATOMS REMARK 500 1.6 ANGSTROMS FOR CONTACTS INVOLVING HYDROGEN ATOMS REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI SSYMOP DISTANCE REMARK 500 O HOH A 257 O HOH A 257 8665 1.78 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: COVALENT BOND LENGTHS REMARK 500 REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 STANDARD TABLE: REMARK 500 FORMAT: (10X,I3,1X,2(A3,1X,A1,I4,A1,1X,A4,3X),1X,F6.3) REMARK 500 REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999 REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996 REMARK 500 REMARK 500 M RES CSSEQI ATM1 RES CSSEQI ATM2 DEVIATION REMARK 500 PRO A 63 CA PRO A 63 C -0.136 REMARK 500 REMARK 500 REMARK: NULL 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 ASP A 64 42.71 83.55 REMARK 500 ASP A 86 40.35 -89.25 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 201 ZN REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 105 ND1 REMARK 620 2 CYS A 111 SG 109.1 REMARK 620 3 CYS A 132 SG 97.2 105.8 REMARK 620 4 CYS A 133 SG 115.9 100.3 127.7 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 ZN A 201 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1A68 RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF THE TETRAMERIZATION DOMAIN OF THE SHAKER REMARK 900 POTASSIUM CHANNEL REMARK 900 RELATED ID: 3KVT RELATED DB: PDB REMARK 900 TETRAMERIZATION DOMAIN FROM AKV3.1 (SHAW-SUBFAMILY) VOLTAGE-GATED REMARK 900 POTASSIUM CHANNEL DBREF 1NN7 A 42 146 UNP Q63881 KCND2_RAT 42 146 SEQRES 1 A 105 LEU ILE VAL LEU ASN VAL SER GLY THR ARG PHE GLN THR SEQRES 2 A 105 TRP GLN ASP THR LEU GLU ARG TYR PRO ASP THR LEU LEU SEQRES 3 A 105 GLY SER SER GLU ARG ASP PHE PHE TYR HIS PRO GLU THR SEQRES 4 A 105 GLN GLN TYR PHE PHE ASP ARG ASP PRO ASP ILE PHE ARG SEQRES 5 A 105 HIS ILE LEU ASN PHE TYR ARG THR GLY LYS LEU HIS TYR SEQRES 6 A 105 PRO ARG HIS GLU CYS ILE SER ALA TYR ASP GLU GLU LEU SEQRES 7 A 105 ALA PHE PHE GLY LEU ILE PRO GLU ILE ILE GLY ASP CYS SEQRES 8 A 105 CYS TYR GLU GLU TYR LYS ASP ARG ARG ARG GLU ASN ALA SEQRES 9 A 105 GLU HET ZN A 201 1 HETNAM ZN ZINC ION FORMUL 2 ZN ZN 2+ FORMUL 3 HOH *57(H2 O) HELIX 1 1 TRP A 55 ARG A 61 1 7 HELIX 2 2 SER A 69 TYR A 76 5 8 HELIX 3 3 HIS A 77 GLN A 81 5 5 HELIX 4 4 ILE A 91 GLY A 102 1 12 HELIX 5 5 CYS A 111 GLY A 123 1 13 HELIX 6 6 GLY A 130 GLU A 135 1 6 HELIX 7 7 TYR A 137 GLU A 146 1 10 SHEET 1 A 3 THR A 50 THR A 54 0 SHEET 2 A 3 ILE A 43 VAL A 47 -1 N ILE A 43 O THR A 54 SHEET 3 A 3 TYR A 83 PHE A 85 1 O TYR A 83 N ASN A 46 LINK ND1 HIS A 105 ZN ZN A 201 1555 1555 2.13 LINK SG CYS A 111 ZN ZN A 201 4465 1555 2.40 LINK SG CYS A 132 ZN ZN A 201 1555 1555 2.20 LINK SG CYS A 133 ZN ZN A 201 1555 1555 2.22 CISPEP 1 ILE A 125 PRO A 126 0 -0.19 SITE 1 AC1 4 HIS A 105 CYS A 111 CYS A 132 CYS A 133 CRYST1 59.999 59.999 61.593 90.00 90.00 90.00 P 4 21 2 8 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 0.016667 0.000000 0.000000 0.00000 SCALE2 0.000000 0.016667 0.000000 0.00000 SCALE3 0.000000 0.000000 0.016236 0.00000