HEADER TOXIN 28-MAY-21 7N25 TITLE NMR STRUCTURE OF EPI-OH COMPND MOL_ID: 1; COMPND 2 MOLECULE: ALPHA-CONOTOXIN EPI-OH; COMPND 3 CHAIN: A; COMPND 4 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 SYNTHETIC: YES; SOURCE 3 ORGANISM_SCIENTIFIC: CONUS EPISCOPATUS; SOURCE 4 ORGANISM_TAXID: 88764; SOURCE 5 OTHER_DETAILS: SOLID PHASE PEPTIDE SYNTHESIS KEYWDS ALPHA-CONOTOXIN, CC-C-C FRAMEWORK, ALPHA4/7 PATTERN, SULFOTYROSINE, KEYWDS 2 TOXIN EXPDTA SOLUTION NMR NUMMDL 20 AUTHOR A.C.CONIBEAR,K.J.ROSENGREN,H.S.LEE REVDAT 3 15-NOV-23 7N25 1 REMARK REVDAT 2 14-JUN-23 7N25 1 REMARK REVDAT 1 17-NOV-21 7N25 0 JRNL AUTH T.N.T.HO,H.S.LEE,S.SWAMINATHAN,L.GOODWIN,N.RAI,B.USHAY, JRNL AUTH 2 R.J.LEWIS,K.J.ROSENGREN,A.C.CONIBEAR JRNL TITL POSTTRANSLATIONAL MODIFICATIONS OF ALPHA-CONOTOXINS: JRNL TITL 2 SULFOTYROSINE AND C-TERMINAL AMIDATION STABILISE STRUCTURES JRNL TITL 3 AND INCREASE ACETYLCHOLINE RECEPTOR BINDING. JRNL REF RSC MED CHEM V. 12 1574 2021 JRNL REFN ESSN 2632-8682 JRNL PMID 34671739 JRNL DOI 10.1039/D1MD00182E REMARK 2 REMARK 2 RESOLUTION. NOT APPLICABLE. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CNS, CYANA 3.98.13 REMARK 3 AUTHORS : BRUNGER A. T. ET.AL. (CNS), GUNTERT, MUMENTHALER REMARK 3 AND WUTHRICH (CYANA) REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: TORSION ANGLE SIMULATED ANNEALING, REMARK 3 ENSEMBLE CONTAINS 20 STRUCTURES WITH THE BEST MOLPROBITY SCORES, REMARK 3 MINIMUM ENERGIES AND NO VIOLATIONS REMARK 4 REMARK 4 7N25 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 28-MAY-21. REMARK 100 THE DEPOSITION ID IS D_1000257150. REMARK 210 REMARK 210 EXPERIMENTAL DETAILS REMARK 210 EXPERIMENT TYPE : NMR REMARK 210 TEMPERATURE (KELVIN) : 298 REMARK 210 PH : 6.0 REMARK 210 IONIC STRENGTH : 5 REMARK 210 PRESSURE : AMBIENT REMARK 210 SAMPLE CONTENTS : 1.0 MG/ML ALPHA-CONOTOXIN EPI REMARK 210 -[Y(SO3)15Y]-NH2, 10 UM DSS, 90% REMARK 210 H2O/10% D2O REMARK 210 REMARK 210 NMR EXPERIMENTS CONDUCTED : 1H-1H TOCSY; 1H-1H NOESY; 1H-15N REMARK 210 HSQC; 1H-13C HSQC REMARK 210 SPECTROMETER FIELD STRENGTH : 700 MHZ REMARK 210 SPECTROMETER MODEL : AVANCE REMARK 210 SPECTROMETER MANUFACTURER : BRUKER REMARK 210 REMARK 210 STRUCTURE DETERMINATION. REMARK 210 SOFTWARE USED : CCPNMR ANALYSIS V3 REMARK 210 METHOD USED : SIMULATED ANNEALING REMARK 210 REMARK 210 CONFORMERS, NUMBER CALCULATED : 50 REMARK 210 CONFORMERS, NUMBER SUBMITTED : 20 REMARK 210 CONFORMERS, SELECTION CRITERIA : STRUCTURES WITH THE LOWEST REMARK 210 ENERGY REMARK 210 REMARK 210 BEST REPRESENTATIVE CONFORMER IN THIS ENSEMBLE : 1 REMARK 210 REMARK 210 REMARK: NULL REMARK 215 REMARK 215 NMR STUDY REMARK 215 THE COORDINATES IN THIS ENTRY WERE GENERATED FROM SOLUTION REMARK 215 NMR DATA. PROTEIN DATA BANK CONVENTIONS REQUIRE THAT REMARK 215 CRYST1 AND SCALE RECORDS BE INCLUDED, BUT THE VALUES ON REMARK 215 THESE RECORDS ARE MEANINGLESS. 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 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 2 CYS A 3 -40.41 -173.36 REMARK 500 3 CYS A 3 -51.67 -161.59 REMARK 500 3 TYS A 15 -70.78 -115.05 REMARK 500 4 CYS A 3 -41.68 -167.02 REMARK 500 5 CYS A 3 -59.01 71.80 REMARK 500 5 TYS A 15 -89.33 -94.51 REMARK 500 7 ASN A 12 79.73 -118.39 REMARK 500 8 CYS A 3 -41.27 -146.45 REMARK 500 9 CYS A 3 -34.98 -130.50 REMARK 500 10 CYS A 3 -67.39 -171.74 REMARK 500 10 TYS A 15 -84.79 -78.59 REMARK 500 11 CYS A 3 -36.50 -131.56 REMARK 500 12 CYS A 3 -83.42 -157.50 REMARK 500 13 CYS A 3 -32.13 -157.50 REMARK 500 14 CYS A 3 -27.02 177.11 REMARK 500 15 CYS A 3 -68.42 -161.16 REMARK 500 16 SER A 4 12.29 -143.53 REMARK 500 17 CYS A 3 -41.31 -146.55 REMARK 500 17 TYS A 15 -80.23 -94.70 REMARK 500 18 CYS A 3 142.51 -178.11 REMARK 500 19 CYS A 3 -30.42 -135.97 REMARK 500 REMARK 500 REMARK: NULL REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 30921 RELATED DB: BMRB REMARK 900 NMR STRUCTURE OF EPI-OH DBREF 7N25 A 1 16 PDB 7N25 7N25 1 16 SEQRES 1 A 16 GLY CYS CYS SER ASP PRO ARG CYS ASN MET ASN ASN PRO SEQRES 2 A 16 ASP TYS CYS HET TYS A 15 24 HETNAM TYS O-SULFO-L-TYROSINE FORMUL 1 TYS C9 H11 N O6 S HELIX 1 AA1 ASP A 5 ASN A 12 1 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 ASP A 14 N TYS A 15 1555 1555 1.30 LINK C TYS A 15 N CYS A 16 1555 1555 1.32 CRYST1 1.000 1.000 1.000 90.00 90.00 90.00 P 1 1 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 1.000000 0.000000 0.000000 0.00000 SCALE2 0.000000 1.000000 0.000000 0.00000 SCALE3 0.000000 0.000000 1.000000 0.00000 MODEL 1