HEADER TOXIN 30-MAR-21 7O2K TITLE NMR SOLUTION STRUCTUE OF CYTOTOXIN 2 FROM NAJA KAOUTHIA COMPND MOL_ID: 1; COMPND 2 MOLECULE: CYTOTOXIN 2; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: CX2,TOXIN CM-7A SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: NAJA KAOUTHIA; SOURCE 3 ORGANISM_COMMON: MONOCLED COBRA, NAJA SIAMENSIS; SOURCE 4 ORGANISM_TAXID: 8649 KEYWDS S-TYPE CYTOTOXIN, COBRA VENOM, THREE-FINGER PROTEIN, MEMBRANE-ACTIVE KEYWDS 2 POLYPEPTIDE, TOXIN EXPDTA SOLUTION NMR NUMMDL 20 AUTHOR M.A.DUBINNYI,P.V.DUBOVSKII REVDAT 1 02-JUN-21 7O2K 0 JRNL AUTH M.A.DUBINNYI,P.V.DUBOVSKII,V.G.STARKOV,Y.N.UTKIN JRNL TITL THE OMEGA-LOOP OF COBRA CYTOTOXINS TOLERATES MULTIPLE AMINO JRNL TITL 2 ACID SUBSTITUTIONS. JRNL REF BIOCHEM.BIOPHYS.RES.COMMUN. V. 558 141 2021 JRNL REFN ESSN 1090-2104 JRNL PMID 33915327 JRNL DOI 10.1016/J.BBRC.2021.04.069 REMARK 2 REMARK 2 RESOLUTION. NOT APPLICABLE. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CYANA REMARK 3 AUTHORS : GUNTERT P. REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: 582 NOE CONSTRAINTS, 109 ANGULAR REMARK 3 CONSTRAINTS, 27 H-BONDS, 4 SS-BONDS REMARK 4 REMARK 4 7O2K COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 30-MAR-21. REMARK 100 THE DEPOSITION ID IS D_1292115017. REMARK 210 REMARK 210 EXPERIMENTAL DETAILS REMARK 210 EXPERIMENT TYPE : NMR REMARK 210 TEMPERATURE (KELVIN) : 303 REMARK 210 PH : 6.0 REMARK 210 IONIC STRENGTH : 0 REMARK 210 PRESSURE : 1 ATM REMARK 210 SAMPLE CONTENTS : 2 MM CYTOTOXIN 2, 3 MM CYTOTOXIN REMARK 210 3, 90% H2O/10% D2O REMARK 210 REMARK 210 NMR EXPERIMENTS CONDUCTED : 2D NOESY; 2D TOCSY; 2D 1H-1H REMARK 210 COSY; 2D 1H-13C HSQC; 2D 1H-15N REMARK 210 HSQC; 2D 1H-13C HSQC-TOCSY REMARK 210 SPECTROMETER FIELD STRENGTH : 800 MHZ; 700 MHZ REMARK 210 SPECTROMETER MODEL : AVANCE III REMARK 210 SPECTROMETER MANUFACTURER : BRUKER REMARK 210 REMARK 210 STRUCTURE DETERMINATION. REMARK 210 SOFTWARE USED : CYANA 1.0.3, CARA 1.8.4 REMARK 210 METHOD USED : TORSION ANGLE DYNAMICS REMARK 210 REMARK 210 CONFORMERS, NUMBER CALCULATED : 200 REMARK 210 CONFORMERS, NUMBER SUBMITTED : 20 REMARK 210 CONFORMERS, SELECTION CRITERIA : TARGET FUNCTION 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 SOFTWARE DETERMINED QUATERNARY STRUCTURE: MONOMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 0 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 4170 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: 0.0 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 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 O MET A 26 H ASN A 29 1.50 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 PRO A 8 69.30 -59.83 REMARK 500 1 LEU A 9 -34.72 -172.03 REMARK 500 1 PRO A 15 -178.40 -50.78 REMARK 500 1 VAL A 27 -37.89 -39.76 REMARK 500 1 ASN A 29 90.16 -165.63 REMARK 500 1 PRO A 43 179.19 -58.15 REMARK 500 1 LEU A 48 -63.85 -109.01 REMARK 500 2 PRO A 8 72.87 -45.96 REMARK 500 2 LEU A 9 -37.35 -174.94 REMARK 500 2 PRO A 15 -179.75 -50.48 REMARK 500 2 VAL A 27 -38.34 -39.34 REMARK 500 2 ASN A 29 91.78 -166.41 REMARK 500 2 PRO A 43 -178.26 -65.25 REMARK 500 2 ARG A 58 47.10 38.77 REMARK 500 3 PRO A 8 70.13 -54.76 REMARK 500 3 LEU A 9 -36.58 -172.12 REMARK 500 3 PRO A 15 -177.18 -46.29 REMARK 500 3 VAL A 27 -35.91 -38.57 REMARK 500 3 ASN A 29 89.77 -166.46 REMARK 500 3 PRO A 43 -179.44 -68.22 REMARK 500 3 ARG A 58 42.46 34.65 REMARK 500 4 PRO A 8 71.40 -56.81 REMARK 500 4 LEU A 9 -36.48 -175.30 REMARK 500 4 PRO A 15 -176.24 -46.51 REMARK 500 4 VAL A 27 -36.01 -38.70 REMARK 500 4 ASN A 29 92.29 -168.41 REMARK 500 4 PRO A 43 -178.23 -69.89 REMARK 500 4 ARG A 58 27.19 45.95 REMARK 500 5 PRO A 8 71.86 -45.51 REMARK 500 5 LEU A 9 -37.20 -173.58 REMARK 500 5 PRO A 15 -179.05 -49.96 REMARK 500 5 ASN A 29 91.17 -173.66 REMARK 500 5 PRO A 43 -179.18 -69.46 REMARK 500 5 ARG A 58 37.72 39.68 REMARK 500 6 PRO A 8 71.46 -58.44 REMARK 500 6 LEU A 9 -36.01 -175.76 REMARK 500 6 PRO A 15 -179.83 -47.14 REMARK 500 6 VAL A 27 -34.36 -38.89 REMARK 500 6 ASN A 29 92.91 -170.48 REMARK 500 6 PRO A 43 -177.25 -67.73 REMARK 500 7 PRO A 8 71.87 -58.44 REMARK 500 7 LEU A 9 -35.93 -175.92 REMARK 500 7 PRO A 15 -178.38 -49.83 REMARK 500 7 VAL A 27 -34.64 -37.65 REMARK 500 7 ASN A 29 92.09 -169.31 REMARK 500 7 PRO A 43 -179.73 -58.54 REMARK 500 8 PRO A 8 71.58 -57.86 REMARK 500 8 LEU A 9 -36.39 -175.95 REMARK 500 8 PRO A 15 -177.63 -46.69 REMARK 500 8 ASN A 29 92.27 -171.11 REMARK 500 REMARK 500 THIS ENTRY HAS 126 RAMACHANDRAN OUTLIERS. REMARK 500 REMARK 500 REMARK: NULL REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 6RC7 RELATED DB: PDB REMARK 900 CYTOTOXIN 3 FROM NAJA KAOUTHIA REMARK 900 RELATED ID: 27877 RELATED DB: BMRB DBREF 7O2K A 1 60 UNP P01445 3SA7A_NAJKA 1 60 SEQRES 1 A 60 LEU LYS CYS ASN LYS LEU ILE PRO LEU ALA TYR LYS THR SEQRES 2 A 60 CYS PRO ALA GLY LYS ASN LEU CYS TYR LYS MET PHE MET SEQRES 3 A 60 VAL SER ASN LYS THR VAL PRO VAL LYS ARG GLY CYS ILE SEQRES 4 A 60 ASP VAL CYS PRO LYS ASN SER LEU LEU VAL LYS TYR VAL SEQRES 5 A 60 CYS CYS ASN THR ASP ARG CYS ASN FORMUL 2 HOH *(H2 O) SHEET 1 AA1 2 LYS A 2 ASN A 4 0 SHEET 2 AA1 2 TYR A 11 THR A 13 -1 O LYS A 12 N CYS A 3 SHEET 1 AA2 3 ASN A 29 ILE A 39 0 SHEET 2 AA2 3 LEU A 20 MET A 26 -1 N MET A 26 O ASN A 29 SHEET 3 AA2 3 VAL A 49 CYS A 54 -1 O LYS A 50 N PHE A 25 SSBOND 1 CYS A 3 CYS A 21 1555 1555 2.04 SSBOND 2 CYS A 14 CYS A 38 1555 1555 2.06 SSBOND 3 CYS A 42 CYS A 53 1555 1555 2.08 SSBOND 4 CYS A 54 CYS A 59 1555 1555 2.04 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