HEADER ACETYLCHOLINE RECEPTOR ANTAGONIST 18-MAY-97 1AKG TITLE ALPHA-CONOTOXIN PNIB FROM CONUS PENNACEUS COMPND MOL_ID: 1; COMPND 2 MOLECULE: ALPHA-CONOTOXIN PNIB; COMPND 3 CHAIN: A; COMPND 4 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 SYNTHETIC: YES; SOURCE 3 ORGANISM_SCIENTIFIC: CONUS PENNACEUS; SOURCE 4 ORGANISM_TAXID: 37335; SOURCE 5 OTHER_DETAILS: BIOLOGICALLY ACTIVE MOLECULE KEYWDS ACETYLCHOLINE RECEPTOR ANTAGONIST, ALPHA-CONOTOXIN EXPDTA X-RAY DIFFRACTION AUTHOR S.-H.HU,J.L.MARTIN REVDAT 4 23-OCT-24 1AKG 1 REMARK LINK REVDAT 3 10-JUN-15 1AKG 1 SOURCE VERSN REVDAT 2 24-FEB-09 1AKG 1 VERSN REVDAT 1 20-MAY-98 1AKG 0 JRNL AUTH S.H.HU,J.GEHRMANN,P.F.ALEWOOD,D.J.CRAIK,J.L.MARTIN JRNL TITL CRYSTAL STRUCTURE AT 1.1 A RESOLUTION OF ALPHA-CONOTOXIN JRNL TITL 2 PNIB: COMPARISON WITH ALPHA-CONOTOXINS PNIA AND GI. JRNL REF BIOCHEMISTRY V. 36 11323 1997 JRNL REFN ISSN 0006-2960 JRNL PMID 9298951 JRNL DOI 10.1021/BI9713052 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH R.MILLER,S.M.GALLO,H.G.KHALAK,C.M.WEEKS REMARK 1 TITL SNB: CRYSTAL STRUCTURE DETERMINATION VIA SHAKE-AND-BAKE REMARK 1 REF J.APPL.CRYSTALLOGR. V. 27 613 1994 REMARK 1 REFN ISSN 0021-8898 REMARK 2 REMARK 2 RESOLUTION. 1.10 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : X-PLOR 3.1 REMARK 3 AUTHORS : BRUNGER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.10 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 6.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 2.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : NULL REMARK 3 DATA CUTOFF LOW (ABS(F)) : NULL REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 70.0 REMARK 3 NUMBER OF REFLECTIONS : 3370 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) : 0.147 REMARK 3 FREE R VALUE : 0.157 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 10.000 REMARK 3 FREE R VALUE TEST SET COUNT : 351 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : 0.150 REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : 8 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 1.10 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.15 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 31.00 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 167 REMARK 3 BIN R VALUE (WORKING SET) : 0.2390 REMARK 3 BIN FREE R VALUE : 0.1850 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 3.00 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 18 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 : 111 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 0 REMARK 3 SOLVENT ATOMS : 23 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 6.00 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 7.50 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) : 0.15 REMARK 3 ESD FROM SIGMAA (A) : NULL REMARK 3 LOW RESOLUTION CUTOFF (A) : 6.00 REMARK 3 REMARK 3 CROSS-VALIDATED ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM C-V LUZZATI PLOT (A) : 0.15 REMARK 3 ESD FROM C-V SIGMAA (A) : NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.006 REMARK 3 BOND ANGLES (DEGREES) : 1.700 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 22.00 REMARK 3 IMPROPER ANGLES (DEGREES) : 1.500 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) : 1.400 ; 2.000 REMARK 3 SIDE-CHAIN BOND (A**2) : 1.700 ; 2.000 REMARK 3 SIDE-CHAIN ANGLE (A**2) : 1.400 ; 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 : NULL REMARK 3 PARAMETER FILE 2 : NULL REMARK 3 PARAMETER FILE 3 : PARHCSDX.PRO REMARK 3 PARAMETER FILE 4 : NULL REMARK 3 TOPOLOGY FILE 1 : TOPH19.PEP REMARK 3 TOPOLOGY FILE 2 : NULL REMARK 3 TOPOLOGY FILE 3 : TOPHCSDX.PRO REMARK 3 TOPOLOGY FILE 4 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1AKG 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_1000170927. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : MAR-96 REMARK 200 TEMPERATURE (KELVIN) : 286 REMARK 200 PH : 7.0 REMARK 200 NUMBER OF CRYSTALS USED : 2 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : N REMARK 200 RADIATION SOURCE : ROTATING ANODE REMARK 200 BEAMLINE : NULL REMARK 200 X-RAY GENERATOR MODEL : RIGAKU RUH2R REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418 REMARK 200 MONOCHROMATOR : NI FILTER REMARK 200 OPTICS : MIRROR-FOCUSSED REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : RIGAKU RAXIS IIC REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 4483 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.100 REMARK 200 RESOLUTION RANGE LOW (A) : 50.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 1.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 91.5 REMARK 200 DATA REDUNDANCY : 8.800 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.08000 REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 15.9000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.10 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.20 REMARK 200 COMPLETENESS FOR SHELL (%) : 74.0 REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : 0.31100 REMARK 200 <I/SIGMA(I)> FOR SHELL : 3.600 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: NULL REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: DIRECT METHOD REMARK 200 SOFTWARE USED: SHAKE-N-BAKE, X-PLOR 3.1 REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 24.00 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 1.60 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 1.0 M NA FORMATE, PH 7.0 REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 21 21 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X+1/2,-Y,Z+1/2 REMARK 290 3555 -X,Y+1/2,-Z+1/2 REMARK 290 4555 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 7.30000 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 14.60000 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 13.05000 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 14.60000 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 7.30000 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 13.05000 REMARK 290 SMTRY3 4 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: MONOMERIC 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 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NH2 A 17 DBREF 1AKG A 1 16 UNP P50985 CXAB_CONPE 1 16 SEQRES 1 A 17 GLY CYS CYS SER LEU PRO PRO CYS ALA LEU SER ASN PRO SEQRES 2 A 17 ASP TYR CYS NH2 HET NH2 A 17 1 HETNAM NH2 AMINO GROUP FORMUL 1 NH2 H2 N FORMUL 2 HOH *23(H2 O) HELIX 1 1 LEU A 5 ASN A 12 5 8 SSBOND 1 CYS A 2 CYS A 8 1555 1555 2.03 SSBOND 2 CYS A 3 CYS A 16 1555 1555 2.03 LINK C CYS A 16 N NH2 A 17 1555 1555 1.33 SITE 1 AC1 3 PRO A 13 CYS A 16 HOH A 29 CRYST1 14.600 26.100 29.200 90.00 90.00 90.00 P 21 21 21 4 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 0.068493 0.000000 0.000000 0.00000 SCALE2 0.000000 0.038314 0.000000 0.00000 SCALE3 0.000000 0.000000 0.034247 0.00000