HEADER TOXIN 28-APR-21 7OD2 TITLE NMR STRUCTURE OF THE ANEMONIA ERYTHRAEA AETX-K TOXIN COMPND MOL_ID: 1; COMPND 2 MOLECULE: KAPPA-ACTITOXIN-AER3A; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: KAPPA-AITX-AER3A,ANERK,POTASSIUM CHANNEL TOXIN AETX K; COMPND 5 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ANEMONIA ERYTHRAEA; SOURCE 3 ORGANISM_COMMON: SEA ANEMONE; SOURCE 4 ORGANISM_TAXID: 48400; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 511693; SOURCE 7 EXPRESSION_SYSTEM_PLASMID: PET-32A KEYWDS SEA ANEMONE KV CHANNEL BLOCKERS, TOXIN EXPDTA SOLUTION NMR NUMMDL 23 AUTHOR A.QASIM,N.QASSEM,J.H.CHILL REVDAT 2 06-NOV-24 7OD2 1 REMARK REVDAT 1 06-APR-22 7OD2 0 JRNL AUTH A.QASIM,H.SHAKED,J.H.CHILL JRNL TITL STRUCTURAL DETERMINATION OF AETX-K BY NMR JRNL REF TO BE PUBLISHED JRNL REFN REMARK 2 REMARK 2 RESOLUTION. NOT APPLICABLE. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CNS REMARK 3 AUTHORS : BRUNGER, ADAMS, CLORE, GROS, NILGES AND READ REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 7OD2 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 28-APR-21. REMARK 100 THE DEPOSITION ID IS D_1292115147. REMARK 210 REMARK 210 EXPERIMENTAL DETAILS REMARK 210 EXPERIMENT TYPE : NMR REMARK 210 TEMPERATURE (KELVIN) : 298 REMARK 210 PH : 5.7 REMARK 210 IONIC STRENGTH : 46 REMARK 210 PRESSURE : 1 ATM REMARK 210 SAMPLE CONTENTS : 7 % [U-99% 2H] D2O, 93 % H2O, REMARK 210 0.01 % SODIUM AZIDE, 20 MM REMARK 210 SODIUM PHOSPHATE, 10 MM SODIUM REMARK 210 CHLORIDE, 0.4 MM [U-98% 15N] REMARK 210 AETX-K TOXIN, 93% H2O/7% D2O; REMARK 210 100 % [U-99% 2H] D2O, 0.01 % REMARK 210 SODIUM AZIDE, 20 MM SODIUM REMARK 210 PHOSPHATE, 10 MM SODIUM CHLORIDE, REMARK 210 0.4 MM AETX-K TOXIN, 100% D2O; REMARK 210 7 % [U-99% 2H] D2O, 93 % H2O, REMARK 210 0.01 % SODIUM AZIDE, 20 MM REMARK 210 SODIUM PHOSPHATE, 10 MM SODIUM REMARK 210 CHLORIDE, 0.4 MM AETX-K TOXIN, REMARK 210 93% H2O/7% D2O REMARK 210 REMARK 210 NMR EXPERIMENTS CONDUCTED : 2D 1H-15N HSQC; 2D 1H-1H TOCSY; REMARK 210 2D 1H-1H NOESY; 2D 1H-1H COSY; REMARK 210 2D 1H-13C HMQC REMARK 210 SPECTROMETER FIELD STRENGTH : 700 MHZ REMARK 210 SPECTROMETER MODEL : DRX700 REMARK 210 SPECTROMETER MANUFACTURER : BRUKER REMARK 210 REMARK 210 STRUCTURE DETERMINATION. REMARK 210 SOFTWARE USED : TOPSPIN 3.6 REMARK 210 METHOD USED : DGSA-DISTANCE GEOMETRY SIMULATED REMARK 210 ANNEALING REMARK 210 REMARK 210 CONFORMERS, NUMBER CALCULATED : 82 REMARK 210 CONFORMERS, NUMBER SUBMITTED : 23 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: CLOSE CONTACTS 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 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 1 LEU A 7 -174.74 -174.36 REMARK 500 2 LEU A 7 -174.89 -174.06 REMARK 500 3 LEU A 7 -175.51 -175.59 REMARK 500 4 LEU A 7 -174.81 -174.56 REMARK 500 5 LEU A 7 -174.93 -175.88 REMARK 500 6 LEU A 7 -174.90 -174.43 REMARK 500 7 LEU A 7 -174.84 -175.70 REMARK 500 8 LEU A 7 -174.05 -176.10 REMARK 500 9 LEU A 7 -176.11 -176.04 REMARK 500 10 LEU A 7 -174.85 -176.47 REMARK 500 11 LEU A 7 -174.44 -176.11 REMARK 500 12 LEU A 7 -174.90 -174.78 REMARK 500 13 LEU A 7 -175.11 -174.10 REMARK 500 14 LEU A 7 -175.79 -176.08 REMARK 500 15 LEU A 7 -175.11 -176.49 REMARK 500 16 LEU A 7 -174.73 -176.10 REMARK 500 17 LEU A 7 -174.77 -176.35 REMARK 500 18 LEU A 7 -174.91 -174.56 REMARK 500 19 LEU A 7 -174.86 -174.14 REMARK 500 20 LEU A 7 -174.79 -176.42 REMARK 500 21 LEU A 7 -174.79 -174.19 REMARK 500 22 LEU A 7 -174.76 -176.36 REMARK 500 23 LEU A 7 -174.91 -174.49 REMARK 500 REMARK 500 REMARK: NULL REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 34619 RELATED DB: BMRB REMARK 900 NMR STRUCTURE OF THE ANEMONIA ERYTHRAEA AETX-K TOXIN DBREF 7OD2 A 2 35 UNP Q0EAE5 K1A_ANEER 50 83 SEQRES 1 A 34 ALA CYS LYS ASP TYR LEU PRO LYS SER GLU CYS THR GLN SEQRES 2 A 34 PHE ARG CYS ARG THR SER MET LYS TYR LYS TYR THR ASN SEQRES 3 A 34 CYS LYS LYS THR CYS GLY THR CYS HELIX 1 AA1 THR A 13 SER A 20 1 8 HELIX 2 AA2 SER A 20 THR A 26 1 7 SSBOND 1 CYS A 3 CYS A 35 1555 1555 2.03 SSBOND 2 CYS A 12 CYS A 28 1555 1555 2.03 SSBOND 3 CYS A 17 CYS A 32 1555 1555 2.03 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 TER 544 CYS A 35 ENDMDL MODEL 2 TER 544 CYS A 35 ENDMDL MODEL 3 TER 544 CYS A 35 ENDMDL MODEL 4 TER 544 CYS A 35 ENDMDL MODEL 5 TER 544 CYS A 35 ENDMDL MODEL 6 TER 544 CYS A 35 ENDMDL MODEL 7 TER 544 CYS A 35 ENDMDL MODEL 8 TER 544 CYS A 35 ENDMDL MODEL 9 TER 544 CYS A 35 ENDMDL MODEL 10 TER 544 CYS A 35 ENDMDL MODEL 11 TER 544 CYS A 35 ENDMDL MODEL 12 TER 544 CYS A 35 ENDMDL MODEL 13 TER 544 CYS A 35 ENDMDL MODEL 14 TER 544 CYS A 35 ENDMDL MODEL 15 TER 544 CYS A 35 ENDMDL MODEL 16 TER 544 CYS A 35 ENDMDL MODEL 17 TER 544 CYS A 35 ENDMDL MODEL 18 TER 544 CYS A 35 ENDMDL MODEL 19 TER 544 CYS A 35 ENDMDL MODEL 20 TER 544 CYS A 35 ENDMDL MODEL 21 TER 544 CYS A 35 ENDMDL MODEL 22 TER 544 CYS A 35 ENDMDL MODEL 23 TER 544 CYS A 35 ENDMDL CONECT 18 538 CONECT 164 439 CONECT 249 507 CONECT 439 164 CONECT 507 249 CONECT 538 18 MASTER 133 0 0 2 0 0 0 6 273 1 6 3 END