10 20 30 40 50 60 70 80 1BAH - Header ----|----|----|----|----|----|----|----|----|----|----|----|----|----|----|----| Asymmetric UnitHEADER TOXIN 06-JUN-96 1BAH
TITLE A TWO DISULFIDE DERIVATIVE OF CHARYBDOTOXIN WITH DISULFIDE TITLE 2 13-33 REPLACED BY TWO ALPHA-AMINOBUTYRIC ACIDS, NMR, 30 TITLE 3 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, KEYWDS 2 TOXIN
EXPDTA SOLUTION NMR
NUMMDL 30
AUTHOR J.SONG,B.GILQUIN,N.JAMIN,M.GUENNEUGUES,M.DAUPLAIS,C.VITA, AUTHOR 2 A.MENEZ
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, JRNL AUTH 2 M.GUENNEUGUES,M.DAUPLAIS,C.VITA,A.MENEZ JRNL TITL NMR SOLUTION STRUCTURE OF A TWO-DISULFIDE JRNL TITL 2 DERIVATIVE OF CHARYBDOTOXIN: STRUCTURAL EVIDENCE JRNL TITL 3 FOR CONSERVATION OF SCORPION TOXIN ALPHA/BETA JRNL TITL 4 MOTIF AND ITS HYDROPHOBIC SIDE CHAIN PACKING. JRNL REF BIOCHEMISTRY V. 36 3760 1997 JRNL REFN ISSN 0006-2960 JRNL PMID 9092804 JRNL DOI 10.1021/BI962720H
REMARK 1
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 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 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. = 7.3 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 8 ASN A 4 45.31 -141.87 REMARK 500 8 THR A 8 -54.06 -123.34 REMARK 500 8 LYS A 11 -34.61 -173.19 REMARK 500 8 HIS A 21 -116.59 -122.38 REMARK 500 8 ASN A 22 57.77 -173.09 REMARK 500 8 MET A 29 -123.17 -96.70 REMARK 500 9 THR A 8 -47.86 -132.08 REMARK 500 9 LYS A 11 -33.64 -177.64 REMARK 500 9 HIS A 21 -112.32 -99.66 REMARK 500 9 ASN A 22 63.73 178.30 REMARK 500 9 LYS A 27 -139.46 -109.86 REMARK 500 9 MET A 29 -121.56 -99.32 REMARK 500 9 TYR A 36 59.66 -143.87 REMARK 500 10 THR A 8 -46.92 -130.81 REMARK 500 10 LYS A 11 -46.79 -171.18 REMARK 500 10 LEU A 20 -68.20 -90.07 REMARK 500 10 HIS A 21 -114.65 -104.13 REMARK 500 10 ASN A 22 82.18 -178.13 REMARK 500 10 SER A 24 28.78 -144.96 REMARK 500 10 MET A 29 -122.13 -101.73 REMARK 500 11 ASN A 4 57.25 -148.13 REMARK 500 11 THR A 8 -47.89 -131.11 REMARK 500 11 LYS A 11 -45.67 -171.98 REMARK 500 11 LEU A 20 -64.78 -90.01 REMARK 500 11 HIS A 21 -112.94 -99.45 REMARK 500 11 ASN A 22 59.04 -176.47 REMARK 500 11 SER A 24 19.00 -145.11 REMARK 500 11 LYS A 27 -143.25 -117.37 REMARK 500 11 MET A 29 -125.48 -96.16 REMARK 500 12 ASN A 4 51.39 -141.01 REMARK 500 12 THR A 8 -48.39 -130.41 REMARK 500 12 LYS A 11 -41.81 -171.10 REMARK 500 12 HIS A 21 -113.27 -104.73 REMARK 500 12 ASN A 22 65.25 -177.17 REMARK 500 12 SER A 24 -33.05 -134.63 REMARK 500 12 LYS A 27 -140.35 -133.63 REMARK 500 12 MET A 29 -126.18 -96.16 REMARK 500 12 LYS A 31 -1.52 -142.37 REMARK 500 13 ASN A 4 52.67 -146.86 REMARK 500 13 THR A 8 -52.56 -131.38 REMARK 500 13 LYS A 11 -36.73 -171.57 REMARK 500 13 HIS A 21 -116.67 -122.25 REMARK 500 13 ASN A 22 63.21 -173.55 REMARK 500 13 SER A 24 35.82 -142.06 REMARK 500 13 LYS A 27 -146.25 -127.05 REMARK 500 13 MET A 29 -132.48 -109.03 REMARK 500 14 ASN A 4 49.38 -147.83 REMARK 500 14 THR A 8 -53.05 -123.99 REMARK 500 14 LYS A 11 -42.03 -171.04 REMARK 500 14 HIS A 21 -112.59 -109.35 REMARK 500 14 ASN A 22 55.57 -172.71 REMARK 500 14 LYS A 27 -140.92 -114.13 REMARK 500 14 MET A 29 -121.47 -94.97 REMARK 500 15 ASN A 4 57.88 -141.09 REMARK 500 15 VAL A 5 -167.23 -104.28 REMARK 500 15 HIS A 21 -117.83 -118.28 REMARK 500 15 ASN A 22 61.29 -170.02 REMARK 500 15 LYS A 27 -156.37 -145.01 REMARK 500 15 MET A 29 -121.47 -99.72 REMARK 500 15 LYS A 31 -0.88 -144.76 REMARK 500 16 ASN A 4 49.43 -151.74 REMARK 500 16 THR A 8 -52.65 -125.48 REMARK 500 16 LYS A 11 -36.08 -174.38 REMARK 500 16 LEU A 20 -73.16 -90.09 REMARK 500 16 SER A 24 32.20 -145.03 REMARK 500 16 MET A 29 -121.96 -97.27 REMARK 500 16 LYS A 31 -4.11 -142.03 REMARK 500 17 ASN A 4 54.33 -147.59 REMARK 500 17 LYS A 11 -31.36 -175.79 REMARK 500 17 HIS A 21 -115.60 -99.97 REMARK 500 17 ASN A 22 58.57 -177.74 REMARK 500 17 LYS A 27 -139.62 -132.41 REMARK 500 17 MET A 29 -123.96 -95.31 REMARK 500 17 LYS A 31 -3.11 -140.98 REMARK 500 18 ASN A 4 48.20 -149.02 REMARK 500 18 THR A 8 -49.06 -130.19 REMARK 500 18 LYS A 11 -35.69 -175.02 REMARK 500 18 HIS A 21 -114.51 -122.33 REMARK 500 18 ASN A 22 58.02 -173.32 REMARK 500 18 SER A 24 37.97 -145.09 REMARK 500 18 MET A 29 -121.88 -97.10 REMARK 500 19 VAL A 5 -167.87 -102.29 REMARK 500 19 LYS A 11 -43.00 -174.64 REMARK 500 19 HIS A 21 -116.05 -109.83 REMARK 500 19 ASN A 22 57.42 -173.00 REMARK 500 19 THR A 23 -156.95 -144.71 REMARK 500 19 SER A 24 -2.42 -145.10 REMARK 500 19 MET A 29 -121.81 -99.62 REMARK 500 20 ASN A 4 52.27 -142.22 REMARK 500 20 THR A 8 -52.75 -132.85 REMARK 500 20 LYS A 11 -37.12 -163.29 REMARK 500 20 LEU A 20 -67.97 -90.06 REMARK 500 20 HIS A 21 -114.83 -102.73 REMARK 500 20 ASN A 22 58.18 -175.55 REMARK 500 20 LYS A 27 -146.00 -129.09 REMARK 500 20 MET A 29 -128.82 -107.12 REMARK 500 21 ASN A 4 53.30 -149.89 REMARK 500 21 THR A 8 -47.21 -130.41 REMARK 500 21 LYS A 11 -32.26 -172.74 REMARK 500 21 HIS A 21 -115.38 -119.36 REMARK 500 21 ASN A 22 58.80 -177.06 REMARK 500 21 LYS A 27 -146.78 -114.03 REMARK 500 21 MET A 29 -124.06 -97.10 REMARK 500 22 THR A 8 -56.77 -124.77 REMARK 500 22 SER A 10 57.80 -90.04 REMARK 500 22 LYS A 11 -33.33 -168.33 REMARK 500 22 LEU A 20 -61.91 -90.13 REMARK 500 22 HIS A 21 -112.74 -106.21 REMARK 500 22 ASN A 22 57.80 -175.72 REMARK 500 22 LYS A 27 -150.36 -144.98 REMARK 500 22 MET A 29 -130.20 -105.72 REMARK 500 22 LYS A 31 -3.05 -140.91 REMARK 500 23 ASN A 4 56.16 -141.91 REMARK 500 23 THR A 8 -55.36 -130.11 REMARK 500 23 LYS A 11 -42.48 -170.09 REMARK 500 23 HIS A 21 -112.57 -101.62 REMARK 500 23 ASN A 22 57.98 -174.98 REMARK 500 23 SER A 24 23.61 -144.98 REMARK 500 23 MET A 29 -122.61 -99.45 REMARK 500 24 THR A 8 -47.76 -131.39 REMARK 500 24 LYS A 11 -43.29 -173.44 REMARK 500 24 HIS A 21 -114.54 -100.68 REMARK 500 24 ASN A 22 61.27 -177.73 REMARK 500 24 LYS A 27 -149.47 -107.97 REMARK 500 24 MET A 29 -119.32 -95.00 REMARK 500 24 LYS A 31 -11.58 -140.12 REMARK 500 25 THR A 8 -45.91 -132.33 REMARK 500 25 LYS A 11 -35.61 -173.51 REMARK 500 25 HIS A 21 -119.04 -115.09 REMARK 500 25 ASN A 22 62.42 -175.21 REMARK 500 25 LYS A 27 -143.35 -106.95 REMARK 500 25 MET A 29 -118.75 -98.42 REMARK 500 25 LYS A 31 -35.11 -131.56 REMARK 500 26 ASN A 4 52.95 -145.36 REMARK 500 26 LYS A 11 -38.83 -173.94 REMARK 500 26 HIS A 21 -119.08 -118.88 REMARK 500 26 ASN A 22 56.35 -174.92 REMARK 500 26 LYS A 27 -149.50 -127.86 REMARK 500 26 MET A 29 -128.26 -98.61 REMARK 500 26 LYS A 31 -3.74 -140.46 REMARK 500 27 ASN A 4 52.56 -146.69 REMARK 500 27 THR A 8 -57.79 -123.25 REMARK 500 27 LYS A 11 -35.81 -165.45 REMARK 500 27 HIS A 21 -115.10 -101.84 REMARK 500 27 ASN A 22 60.95 179.86 REMARK 500 27 LYS A 27 -154.42 -144.96 REMARK 500 27 MET A 29 -132.02 -107.63 REMARK 500 28 ASN A 4 49.99 -148.29 REMARK 500 28 THR A 8 -51.38 -128.66 REMARK 500 28 LYS A 11 -42.49 -173.93 REMARK 500 28 HIS A 21 -116.31 -118.97 REMARK 500 28 ASN A 22 59.74 -175.84 REMARK 500 28 SER A 24 32.62 -144.89 REMARK 500 28 MET A 29 -131.62 -106.73 REMARK 500 29 ASN A 4 52.30 -155.51 REMARK 500 29 LYS A 11 -36.42 -173.79 REMARK 500 29 HIS A 21 -119.08 -115.94 REMARK 500 29 ASN A 22 58.15 -170.88 REMARK 500 29 LYS A 27 -140.53 -112.13 REMARK 500 29 MET A 29 -122.52 -97.55 REMARK 500 30 ASN A 4 54.02 -149.16 REMARK 500 30 THR A 8 -47.23 -131.48 REMARK 500 30 LYS A 11 -38.63 -173.06 REMARK 500 30 HIS A 21 -114.36 -104.05 REMARK 500 30 ASN A 22 60.30 179.56 REMARK 500 30 SER A 24 17.29 -141.72 REMARK 500 30 MET A 29 -122.72 -98.50 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 MODEIFED 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 GLU 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