HEADER TOXIN 06-JUN-96 1BAH TITLE A TWO DISULFIDE DERIVATIVE OF CHARYBDOTOXIN WITH DISULFIDE 13-33 TITLE 2 REPLACED BY TWO ALPHA-AMINOBUTYRIC ACIDS, NMR, 30 STRUCTURES COMPND MOL_ID: 1; COMPND 2 MOLECULE: CHARYBDOTOXIN; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: CHABII; COMPND 5 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: LEIURUS QUINQUESTRIATUS; SOURCE 3 ORGANISM_COMMON: EGYPTIAN SCORPION; SOURCE 4 ORGANISM_TAXID: 6883 KEYWDS CHARYBDOTOXIN, NEUROTOXIN, POTASSIUM CHANNEL INHIBITOR, TOXIN EXPDTA SOLUTION NMR NUMMDL 30 AUTHOR J.SONG,B.GILQUIN,N.JAMIN,M.GUENNEUGUES,M.DAUPLAIS,C.VITA,A.MENEZ REVDAT 4 15-JAN-20 1BAH 1 SEQADV REVDAT 3 25-DEC-19 1BAH 1 REMARK SEQADV SEQRES LINK REVDAT 2 24-FEB-09 1BAH 1 VERSN REVDAT 1 11-JAN-97 1BAH 0 JRNL AUTH J.SONG,B.GILQUIN,N.JAMIN,E.DRAKOPOULOU,M.GUENNEUGUES, JRNL AUTH 2 M.DAUPLAIS,C.VITA,A.MENEZ JRNL TITL NMR SOLUTION STRUCTURE OF A TWO-DISULFIDE DERIVATIVE OF JRNL TITL 2 CHARYBDOTOXIN: STRUCTURAL EVIDENCE FOR CONSERVATION OF JRNL TITL 3 SCORPION TOXIN ALPHA/BETA MOTIF AND ITS HYDROPHOBIC SIDE JRNL TITL 4 CHAIN PACKING. JRNL REF BIOCHEMISTRY V. 36 3760 1997 JRNL REFN ISSN 0006-2960 JRNL PMID 9092804 JRNL DOI 10.1021/BI962720H REMARK 2 REMARK 2 RESOLUTION. NOT APPLICABLE. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : X-PLOR REMARK 3 AUTHORS : BRUNGER REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1BAH COMPLIES WITH FORMAT V. 3.15, 01-DEC-08 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY BNL. REMARK 100 THE DEPOSITION ID IS D_1000171526. REMARK 210 REMARK 210 EXPERIMENTAL DETAILS REMARK 210 EXPERIMENT TYPE : NMR REMARK 210 TEMPERATURE (KELVIN) : 278 REMARK 210 PH : 6.3 REMARK 210 IONIC STRENGTH : NULL REMARK 210 PRESSURE : NULL REMARK 210 SAMPLE CONTENTS : NULL REMARK 210 REMARK 210 NMR EXPERIMENTS CONDUCTED : NULL REMARK 210 SPECTROMETER FIELD STRENGTH : NULL REMARK 210 SPECTROMETER MODEL : NULL REMARK 210 SPECTROMETER MANUFACTURER : NULL REMARK 210 REMARK 210 STRUCTURE DETERMINATION. REMARK 210 SOFTWARE USED : NULL REMARK 210 METHOD USED : NULL REMARK 210 REMARK 210 CONFORMERS, NUMBER CALCULATED : NULL REMARK 210 CONFORMERS, NUMBER SUBMITTED : 30 REMARK 210 CONFORMERS, SELECTION CRITERIA : NULL REMARK 210 REMARK 210 BEST REPRESENTATIVE CONFORMER IN THIS ENSEMBLE : NULL 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: 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 13 CYS A 28 CA - CB - SG ANGL. DEV. = 8.7 DEGREES REMARK 500 20 CYS A 28 CA - CB - SG ANGL. DEV. = 9.1 DEGREES REMARK 500 22 CYS A 28 CA - CB - SG ANGL. DEV. = 7.2 DEGREES REMARK 500 23 CYS A 28 CA - CB - SG ANGL. DEV. = 7.5 DEGREES REMARK 500 27 CYS A 28 CA - CB - SG ANGL. DEV. = 7.6 DEGREES REMARK 500 28 CYS A 28 CA - CB - SG ANGL. DEV. = 9.2 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 1 ASN A 4 53.90 -141.02 REMARK 500 1 LYS A 11 -35.32 -172.54 REMARK 500 1 HIS A 21 -112.18 -106.06 REMARK 500 1 ASN A 22 60.52 -179.88 REMARK 500 1 SER A 24 20.07 -144.98 REMARK 500 1 MET A 29 -122.10 -99.03 REMARK 500 1 LYS A 31 -1.06 -144.72 REMARK 500 2 LYS A 11 -44.86 -177.36 REMARK 500 2 HIS A 21 -114.09 -101.83 REMARK 500 2 ASN A 22 59.38 -177.70 REMARK 500 2 SER A 24 36.18 -145.14 REMARK 500 2 LYS A 27 -145.61 -125.83 REMARK 500 2 MET A 29 -121.92 -97.21 REMARK 500 2 LYS A 31 -2.36 -144.82 REMARK 500 3 ASN A 4 54.70 -144.82 REMARK 500 3 LYS A 11 -36.07 -175.61 REMARK 500 3 HIS A 21 -110.60 -103.05 REMARK 500 3 ASN A 22 63.92 -178.85 REMARK 500 3 MET A 29 -119.68 -100.07 REMARK 500 4 ASN A 4 55.43 -150.40 REMARK 500 4 VAL A 5 -167.07 -102.85 REMARK 500 4 LYS A 11 -34.90 -168.21 REMARK 500 4 HIS A 21 -115.16 -115.78 REMARK 500 4 ASN A 22 58.32 -173.98 REMARK 500 4 LYS A 27 -151.34 -135.79 REMARK 500 4 MET A 29 -123.27 -98.94 REMARK 500 4 LYS A 31 -1.56 -144.97 REMARK 500 5 LYS A 11 -39.25 -177.25 REMARK 500 5 HIS A 21 -118.12 -116.60 REMARK 500 5 ASN A 22 59.34 -173.86 REMARK 500 5 SER A 24 -32.13 -132.84 REMARK 500 5 LYS A 27 -147.83 -108.72 REMARK 500 5 MET A 29 -124.74 -95.18 REMARK 500 5 LYS A 31 -7.28 -142.19 REMARK 500 6 ASN A 4 49.29 -148.94 REMARK 500 6 THR A 8 -56.11 -126.45 REMARK 500 6 LYS A 11 -45.94 179.75 REMARK 500 6 HIS A 21 -113.70 -100.31 REMARK 500 6 ASN A 22 56.80 -175.86 REMARK 500 6 SER A 24 -33.00 -131.62 REMARK 500 6 LYS A 27 -141.60 -126.29 REMARK 500 6 MET A 29 -125.85 -98.83 REMARK 500 7 ASN A 4 54.24 -145.56 REMARK 500 7 VAL A 5 -169.73 -103.64 REMARK 500 7 LYS A 11 -39.18 -178.70 REMARK 500 7 HIS A 21 -116.19 -118.22 REMARK 500 7 ASN A 22 59.17 -172.07 REMARK 500 7 LYS A 27 -149.48 -127.06 REMARK 500 7 MET A 29 -121.23 -99.38 REMARK 500 7 LYS A 31 -6.55 -140.93 REMARK 500 REMARK 500 THIS ENTRY HAS 217 RAMACHANDRAN OUTLIERS. REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: PLANAR GROUPS REMARK 500 REMARK 500 PLANAR GROUPS IN THE FOLLOWING RESIDUES HAVE A TOTAL REMARK 500 RMS DISTANCE OF ALL ATOMS FROM THE BEST-FIT PLANE REMARK 500 BY MORE THAN AN EXPECTED VALUE OF 6*RMSD, WITH AN REMARK 500 RMSD 0.02 ANGSTROMS, OR AT LEAST ONE ATOM HAS REMARK 500 AN RMSD GREATER THAN THIS VALUE REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 M RES CSSEQI RMS TYPE REMARK 500 17 HIS A 21 0.08 SIDE CHAIN REMARK 500 22 TYR A 36 0.07 SIDE CHAIN REMARK 500 REMARK 500 REMARK: NULL DBREF 1BAH A 2 37 UNP P13487 SCKA_LEIQH 2 37 SEQADV 1BAH ABA A 13 UNP P13487 CYS 13 MODIFIED RESIDUE SEQADV 1BAH ABA A 33 UNP P13487 CYS 33 MODIFIED RESIDUE SEQRES 1 A 37 PCA PHE THR ASN VAL SER CYS THR THR SER LYS GLU ABA SEQRES 2 A 37 TRP SER VAL CYS GLN ARG LEU HIS ASN THR SER ARG GLY SEQRES 3 A 37 LYS CYS MET ASN LYS LYS ABA ARG CYS TYR SER MODRES 1BAH PCA A 1 GLN PYROGLUTAMIC ACID MODRES 1BAH ABA A 13 ALA ALPHA-AMINOBUTYRIC ACID MODRES 1BAH ABA A 33 ALA ALPHA-AMINOBUTYRIC ACID HET PCA A 1 14 HET ABA A 13 13 HET ABA A 33 13 HETNAM PCA PYROGLUTAMIC ACID HETNAM ABA ALPHA-AMINOBUTYRIC ACID FORMUL 1 PCA C5 H7 N O3 FORMUL 1 ABA 2(C4 H9 N O2) HELIX 1 1 SER A 10 LEU A 20 1 11 SHEET 1 S1 2 ARG A 25 MET A 29 0 SHEET 2 S1 2 LYS A 32 TYR A 36 -1 SSBOND 1 CYS A 7 CYS A 28 1555 1555 2.03 SSBOND 2 CYS A 17 CYS A 35 1555 1555 2.04 LINK C PCA A 1 N PHE A 2 1555 1555 1.36 LINK N ABA A 13 C GLU A 12 1555 1555 1.36 LINK C ABA A 13 N TRP A 14 1555 1555 1.36 LINK N ABA A 33 C LYS A 32 1555 1555 1.37 LINK C ABA A 33 N ARG A 34 1555 1555 1.36 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 HETATM 1 N PCA A 1 -2.558 -8.684 -7.446 1.00 0.00 N HETATM 2 CA PCA A 1 -3.221 -8.037 -6.347 1.00 0.00 C HETATM 3 CB PCA A 1 -3.763 -9.215 -5.501 1.00 0.00 C HETATM 4 CG PCA A 1 -2.984 -10.464 -5.953 1.00 0.00 C HETATM 5 CD PCA A 1 -2.476 -10.028 -7.294 1.00 0.00 C HETATM 6 OE PCA A 1 -2.029 -10.806 -8.135 1.00 0.00 O HETATM 7 C PCA A 1 -2.248 -7.137 -5.613 1.00 0.00 C HETATM 8 O PCA A 1 -2.172 -7.138 -4.385 1.00 0.00 O HETATM 9 H PCA A 1 -2.295 -8.158 -8.252 1.00 0.00 H HETATM 10 HA PCA A 1 -4.028 -7.431 -6.735 1.00 0.00 H HETATM 11 HB2 PCA A 1 -3.722 -9.072 -4.404 1.00 0.00 H HETATM 12 HB3 PCA A 1 -4.835 -9.357 -5.776 1.00 0.00 H HETATM 13 HG2 PCA A 1 -2.126 -10.662 -5.275 1.00 0.00 H HETATM 14 HG3 PCA A 1 -3.636 -11.360 -6.020 1.00 0.00 H