HEADER TRANSPORT PROTEIN 14-JUN-16 5KHK TITLE HCN2 CNBD IN COMPLEX WITH 2-AMINOPURINE RIBOSIDE-3', 5'-CYCLIC TITLE 2 MONOPHOSPHATE (2-NH2-CPUMP) COMPND MOL_ID: 1; COMPND 2 MOLECULE: POTASSIUM/SODIUM HYPERPOLARIZATION-ACTIVATED CYCLIC COMPND 3 NUCLEOTIDE-GATED CHANNEL 2; COMPND 4 CHAIN: A; COMPND 5 FRAGMENT: UNP RESIDUES 443-643; COMPND 6 SYNONYM: BRAIN CYCLIC NUCLEOTIDE-GATED CHANNEL 2,BCNG-2, COMPND 7 HYPERPOLARIZATION-ACTIVATED CATION CHANNEL 1,HAC-1; COMPND 8 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: MUS MUSCULUS; SOURCE 3 ORGANISM_COMMON: MOUSE; SOURCE 4 ORGANISM_TAXID: 10090; SOURCE 5 GENE: HCN2, BCNG2, HAC1; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 469008; SOURCE 8 EXPRESSION_SYSTEM_STRAIN: BL21(DE3); SOURCE 9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASIMD; SOURCE 10 EXPRESSION_SYSTEM_PLASMID: PET28 KEYWDS PROTEIN-LIGAND COMPLEX, CYCILC NUCLEOTIDE BINDING DOMAIN, ION KEYWDS 2 TRANSPORT, TRANSPORT PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR L.C.T.NG,I.PUTRENKO,V.BARONAS,F.VAN PETEGEM,E.A.ACCILI REVDAT 3 27-SEP-23 5KHK 1 JRNL REMARK REVDAT 2 19-OCT-16 5KHK 1 JRNL REVDAT 1 14-SEP-16 5KHK 0 JRNL AUTH L.C.NG,I.PUTRENKO,V.BARONAS,F.VAN PETEGEM,E.A.ACCILI JRNL TITL CYCLIC PURINE AND PYRIMIDINE NUCLEOTIDES BIND TO THE HCN2 JRNL TITL 2 ION CHANNEL AND VARIABLY PROMOTE C-TERMINAL DOMAIN JRNL TITL 3 INTERACTIONS AND OPENING. JRNL REF STRUCTURE V. 24 1629 2016 JRNL REFN ISSN 0969-2126 JRNL PMID 27568927 JRNL DOI 10.1016/J.STR.2016.06.024 REMARK 2 REMARK 2 RESOLUTION. 2.07 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC 5.7.0029 REMARK 3 AUTHORS : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER, REMARK 3 : NICHOLLS,WINN,LONG,VAGIN REMARK 3 REMARK 3 REFINEMENT TARGET : NULL REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.07 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 38.40 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 99.3 REMARK 3 NUMBER OF REFLECTIONS : 13132 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 + TEST SET) : 0.218 REMARK 3 R VALUE (WORKING SET) : 0.216 REMARK 3 FREE R VALUE : 0.261 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.000 REMARK 3 FREE R VALUE TEST SET COUNT : 692 REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : 20 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 2.07 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.12 REMARK 3 REFLECTION IN BIN (WORKING SET) : 912 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 94.38 REMARK 3 BIN R VALUE (WORKING SET) : 0.3220 REMARK 3 BIN FREE R VALUE SET COUNT : 46 REMARK 3 BIN FREE R VALUE : 0.4370 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1612 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 22 REMARK 3 SOLVENT ATOMS : 52 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 49.46 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 47.95 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 0.25000 REMARK 3 B22 (A**2) : 0.25000 REMARK 3 B33 (A**2) : -0.51000 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 OVERALL COORDINATE ERROR. REMARK 3 ESU BASED ON R VALUE (A): 0.238 REMARK 3 ESU BASED ON FREE R VALUE (A): 0.199 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.147 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 5.397 REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : 0.951 REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : 0.931 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES COUNT RMS WEIGHT REMARK 3 BOND LENGTHS REFINED ATOMS (A): 1702 ; 0.016 ; 0.019 REMARK 3 BOND LENGTHS OTHERS (A): 1583 ; 0.001 ; 0.020 REMARK 3 BOND ANGLES REFINED ATOMS (DEGREES): 2306 ; 1.736 ; 1.978 REMARK 3 BOND ANGLES OTHERS (DEGREES): 3628 ; 0.800 ; 3.000 REMARK 3 TORSION ANGLES, PERIOD 1 (DEGREES): 210 ; 5.769 ; 5.000 REMARK 3 TORSION ANGLES, PERIOD 2 (DEGREES): 85 ;32.149 ;23.176 REMARK 3 TORSION ANGLES, PERIOD 3 (DEGREES): 293 ;17.482 ;15.000 REMARK 3 TORSION ANGLES, PERIOD 4 (DEGREES): 15 ;16.578 ;15.000 REMARK 3 CHIRAL-CENTER RESTRAINTS (A**3): 247 ; 0.091 ; 0.200 REMARK 3 GENERAL PLANES REFINED ATOMS (A): 1942 ; 0.009 ; 0.020 REMARK 3 GENERAL PLANES OTHERS (A): 424 ; 0.001 ; 0.020 REMARK 3 NON-BONDED CONTACTS REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED CONTACTS OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED TORSION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED TORSION OTHERS (A): NULL ; NULL ; NULL REMARK 3 H-BOND (X...Y) REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 H-BOND (X...Y) OTHERS (A): NULL ; NULL ; NULL REMARK 3 POTENTIAL METAL-ION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 POTENTIAL METAL-ION OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY VDW REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY VDW OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY H-BOND REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY H-BOND OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY METAL-ION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY METAL-ION OTHERS (A): NULL ; NULL ; NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. COUNT RMS WEIGHT REMARK 3 MAIN-CHAIN BOND REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN BOND REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 LONG RANGE B REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 LONG RANGE B OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 REMARK 3 ANISOTROPIC THERMAL FACTOR RESTRAINTS. COUNT RMS WEIGHT REMARK 3 RIGID-BOND RESTRAINTS (A**2): NULL ; NULL ; NULL REMARK 3 SPHERICITY; FREE ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SPHERICITY; BONDED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 REMARK 3 NCS RESTRAINTS STATISTICS REMARK 3 NUMBER OF DIFFERENT NCS GROUPS : NULL REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : NULL REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : NULL REMARK 3 PARAMETERS FOR MASK CALCULATION REMARK 3 VDW PROBE RADIUS : 1.20 REMARK 3 ION PROBE RADIUS : 0.80 REMARK 3 SHRINKAGE RADIUS : 0.80 REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: MOLECULAR REPLACEMENT REMARK 4 REMARK 4 5KHK COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 16-JUN-16. REMARK 100 THE DEPOSITION ID IS D_1000222238. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 22-FEB-13 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 4.6 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : APS REMARK 200 BEAMLINE : 23-ID-D REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.033200 REMARK 200 MONOCHROMATOR : SI(111) REMARK 200 OPTICS : 1000 UM THICK SENSOR REMARK 200 REMARK 200 DETECTOR TYPE : PIXEL REMARK 200 DETECTOR MANUFACTURER : PSI PILATUS 6M REMARK 200 INTENSITY-INTEGRATION SOFTWARE : XDS REMARK 200 DATA SCALING SOFTWARE : XSCALE REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 13521 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.070 REMARK 200 RESOLUTION RANGE LOW (A) : 38.400 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : -3.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.1 REMARK 200 DATA REDUNDANCY : 13.86 REMARK 200 R MERGE (I) : 0.06700 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 26.9900 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.08 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.21 REMARK 200 COMPLETENESS FOR SHELL (%) : 94.4 REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : 0.76700 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 4.080 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: PHASER REMARK 200 STARTING MODEL: 1Q5O REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 46.18 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.29 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 200 MM NACL, 0.1 MM SODIUM CITRATE PH REMARK 280 4.6, 12% PEG 400, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 277K 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 48.21450 REMARK 290 SMTRY2 3 1.000000 0.000000 0.000000 48.21450 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 4 0.000000 1.000000 0.000000 48.21450 REMARK 290 SMTRY2 4 -1.000000 0.000000 0.000000 48.21450 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 5 -1.000000 0.000000 0.000000 48.21450 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 48.21450 REMARK 290 SMTRY3 5 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 6 1.000000 0.000000 0.000000 48.21450 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 48.21450 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 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 REMARK 350 TOTAL BURIED SURFACE AREA: 8580 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 37030 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -44.0 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 96.42900 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 48.21450 REMARK 350 BIOMT2 3 1.000000 0.000000 0.000000 -48.21450 REMARK 350 BIOMT3 3 0.000000 0.000000 1.000000 0.00000 REMARK 350 BIOMT1 4 0.000000 1.000000 0.000000 48.21450 REMARK 350 BIOMT2 4 -1.000000 0.000000 0.000000 48.21450 REMARK 350 BIOMT3 4 0.000000 0.000000 1.000000 0.00000 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 HOH A 812 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 440 REMARK 465 ASN A 441 REMARK 465 ALA A 442 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 ASP A 443 CG OD1 OD2 REMARK 470 LYS A 464 CG CD CE NZ REMARK 470 LYS A 552 CG CD CE NZ REMARK 470 LYS A 567 CG CD CE NZ REMARK 470 ASN A 569 CG OD1 ND2 REMARK 470 LYS A 570 CG CD CE NZ REMARK 470 GLU A 616 CG CD OE1 OE2 REMARK 470 GLU A 617 CG CD OE1 OE2 REMARK 470 ARG A 623 CG CD NE CZ NH1 NH2 REMARK 470 LYS A 638 CG CD CE NZ REMARK 470 LYS A 639 CG CD CE NZ REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS IN SAME ASYMMETRIC UNIT REMARK 500 REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT. REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI DISTANCE REMARK 500 NE ARG A 446 O HOH A 801 2.03 REMARK 500 NH2 ARG A 596 O HOH A 802 2.14 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: COVALENT BOND ANGLES 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,A3,1X,A1,I4,A1,3(1X,A4,2X),12X,F5.1) 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 ATM2 ATM3 REMARK 500 ASP A 522 CB - CG - OD1 ANGL. DEV. = 7.7 DEGREES 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 ASN A 569 -9.65 119.63 REMARK 500 ASP A 576 130.98 -39.91 REMARK 500 REMARK 500 REMARK: NULL REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue 6SZ A 701 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 5KHG RELATED DB: PDB REMARK 900 RELATED ID: 5KHH RELATED DB: PDB REMARK 900 RELATED ID: 5KHI RELATED DB: PDB REMARK 900 RELATED ID: 5KHJ RELATED DB: PDB DBREF 5KHK A 443 643 UNP O88703 HCN2_MOUSE 443 643 SEQADV 5KHK SER A 440 UNP O88703 EXPRESSION TAG SEQADV 5KHK ASN A 441 UNP O88703 EXPRESSION TAG SEQADV 5KHK ALA A 442 UNP O88703 EXPRESSION TAG SEQRES 1 A 204 SER ASN ALA ASP SER SER ARG ARG GLN TYR GLN GLU LYS SEQRES 2 A 204 TYR LYS GLN VAL GLU GLN TYR MET SER PHE HIS LYS LEU SEQRES 3 A 204 PRO ALA ASP PHE ARG GLN LYS ILE HIS ASP TYR TYR GLU SEQRES 4 A 204 HIS ARG TYR GLN GLY LYS MET PHE ASP GLU ASP SER ILE SEQRES 5 A 204 LEU GLY GLU LEU ASN GLY PRO LEU ARG GLU GLU ILE VAL SEQRES 6 A 204 ASN PHE ASN CSX ARG LYS LEU VAL ALA SER MET PRO LEU SEQRES 7 A 204 PHE ALA ASN ALA ASP PRO ASN PHE VAL THR ALA MET LEU SEQRES 8 A 204 THR LYS LEU LYS PHE GLU VAL PHE GLN PRO GLY ASP TYR SEQRES 9 A 204 ILE ILE ARG GLU GLY THR ILE GLY LYS LYS MET TYR PHE SEQRES 10 A 204 ILE GLN HIS GLY VAL VAL SER VAL LEU THR LYS GLY ASN SEQRES 11 A 204 LYS GLU MET LYS LEU SER ASP GLY SER TYR PHE GLY GLU SEQRES 12 A 204 ILE CYS LEU LEU THR ARG GLY ARG ARG THR ALA SER VAL SEQRES 13 A 204 ARG ALA ASP THR TYR CYS ARG LEU TYR SER LEU SER VAL SEQRES 14 A 204 ASP ASN PHE ASN GLU VAL LEU GLU GLU TYR PRO MET MET SEQRES 15 A 204 ARG ARG ALA PHE GLU THR VAL ALA ILE ASP ARG LEU ASP SEQRES 16 A 204 ARG ILE GLY LYS LYS ASN SER ILE LEU MODRES 5KHK CSX A 508 CYS MODIFIED RESIDUE HET CSX A 508 7 HET 6SZ A 701 22 HETNAM CSX S-OXY CYSTEINE HETNAM 6SZ 2-AMINOPURINE RIBOSIDE-3',5'-CYCLIC MONOPHOSPHATE HETSYN 6SZ 2-NH2-CPUMP FORMUL 1 CSX C3 H7 N O3 S FORMUL 2 6SZ C10 H12 N5 O6 P FORMUL 3 HOH *52(H2 O) HELIX 1 AA1 ASP A 443 HIS A 463 1 21 HELIX 2 AA2 PRO A 466 GLN A 482 1 17 HELIX 3 AA3 ASP A 487 LEU A 495 1 9 HELIX 4 AA4 ASN A 496 CSX A 508 1 13 HELIX 5 AA5 CSX A 508 MET A 515 1 8 HELIX 6 AA6 MET A 515 ASN A 520 1 6 HELIX 7 AA7 ASP A 522 THR A 531 1 10 HELIX 8 AA8 GLY A 581 ARG A 588 1 8 HELIX 9 AA9 VAL A 608 TYR A 618 1 11 HELIX 10 AB1 PRO A 619 ARG A 635 1 17 SHEET 1 AA1 4 LYS A 534 PHE A 538 0 SHEET 2 AA1 4 CYS A 601 SER A 607 -1 O LEU A 603 N GLU A 536 SHEET 3 AA1 4 LYS A 553 HIS A 559 -1 N HIS A 559 O ARG A 602 SHEET 4 AA1 4 TYR A 579 PHE A 580 -1 O PHE A 580 N TYR A 555 SHEET 1 AA2 4 TYR A 543 ILE A 545 0 SHEET 2 AA2 4 SER A 594 ALA A 597 -1 O VAL A 595 N ILE A 545 SHEET 3 AA2 4 VAL A 562 LEU A 565 -1 N LEU A 565 O SER A 594 SHEET 4 AA2 4 GLU A 571 LEU A 574 -1 O MET A 572 N VAL A 564 LINK C ASN A 507 N CSX A 508 1555 1555 1.33 LINK C CSX A 508 N ARG A 509 1555 1555 1.33 SITE 1 AC1 13 VAL A 564 MET A 572 LEU A 574 PHE A 580 SITE 2 AC1 13 GLY A 581 GLU A 582 ILE A 583 CYS A 584 SITE 3 AC1 13 ARG A 591 THR A 592 ALA A 593 ARG A 632 SITE 4 AC1 13 ILE A 636 CRYST1 96.429 96.429 46.423 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 0.010370 0.000000 0.000000 0.00000 SCALE2 0.000000 0.010370 0.000000 0.00000 SCALE3 0.000000 0.000000 0.021541 0.00000