HEADER TOXIN 24-SEP-13 2MEO TITLE NMR SOLUTION STRUCTURE OF THE DOUBLE GS-TAMAPIN MUTATION R6A/R7A COMPND MOL_ID: 1; COMPND 2 MOLECULE: POTASSIUM CHANNEL TOXIN ALPHA-KTX 5.4; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: TAMAPIN; COMPND 5 ENGINEERED: YES; COMPND 6 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: MESOBUTHUS TAMULUS; SOURCE 3 ORGANISM_COMMON: EASTERN INDIAN SCORPION; SOURCE 4 ORGANISM_TAXID: 34647; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 7 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 8 EXPRESSION_SYSTEM_PLASMID: MODIFIED PET32A KEYWDS SCORPION TOXIN, TAMAPIN, ALPHA KTX5.4 DOUBLE MUTANT R6A R7A, TOXIN EXPDTA SOLUTION NMR NUMMDL 20 AUTHOR F.DEL RIO-PORTILLA,B.RAMIREZ-CORDERO REVDAT 3 20-NOV-24 2MEO 1 REMARK SEQADV REVDAT 2 02-JUL-14 2MEO 1 JRNL REVDAT 1 28-MAY-14 2MEO 0 JRNL AUTH B.RAMIREZ-CORDERO,Y.TOLEDANO,P.CANO-SANCHEZ, JRNL AUTH 2 R.HERNANDEZ-LOPEZ,D.FLORES-SOLIS,A.L.SAUCEDO-YANEZ, JRNL AUTH 3 I.CHAVEZ-URIBE,L.G.BRIEBA,F.DEL RIO-PORTILLA JRNL TITL CYTOTOXICITY OF RECOMBINANT TAMAPIN AND RELATED TOXIN-LIKE JRNL TITL 2 PEPTIDES ON MODEL CELL LINES. JRNL REF CHEM.RES.TOXICOL. V. 27 960 2014 JRNL REFN ISSN 0893-228X JRNL PMID 24821061 JRNL DOI 10.1021/TX4004193 REMARK 2 REMARK 2 RESOLUTION. NOT APPLICABLE. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : AMBER 99 REMARK 3 AUTHORS : CASE, DARDEN, CHEATHAM, III, SIMMERLING, WANG, REMARK 3 DUKE, LUO, ... AND KOLLMAN REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 2MEO COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 27-SEP-13. REMARK 100 THE DEPOSITION ID IS D_1000103537. REMARK 210 REMARK 210 EXPERIMENTAL DETAILS REMARK 210 EXPERIMENT TYPE : NMR REMARK 210 TEMPERATURE (KELVIN) : 298 REMARK 210 PH : 2.5 REMARK 210 IONIC STRENGTH : NULL REMARK 210 PRESSURE : AMBIENT REMARK 210 SAMPLE CONTENTS : 3.0 MM PROTEIN, 95% H2O/5% D2O REMARK 210 REMARK 210 NMR EXPERIMENTS CONDUCTED : 2D 1H-1H TOCSY; 2D DQF-COSY; 2D REMARK 210 1H-1H NOESY REMARK 210 SPECTROMETER FIELD STRENGTH : 500 MHZ REMARK 210 SPECTROMETER MODEL : INOVA REMARK 210 SPECTROMETER MANUFACTURER : VARIAN REMARK 210 REMARK 210 STRUCTURE DETERMINATION. REMARK 210 SOFTWARE USED : CYANA, NMRPIPE, XEASY REMARK 210 METHOD USED : MOLECULAR DYNAMICS REMARK 210 REMARK 210 CONFORMERS, NUMBER CALCULATED : 200 REMARK 210 CONFORMERS, NUMBER SUBMITTED : 20 REMARK 210 CONFORMERS, SELECTION CRITERIA : STRUCTURES WITH THE LEAST REMARK 210 RESTRAINT VIOLATIONS 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: 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 2 CYS A 30 CA - CB - SG ANGL. DEV. = 7.3 DEGREES REMARK 500 3 ARG A 15 NE - CZ - NH1 ANGL. DEV. = 4.7 DEGREES REMARK 500 4 ARG A 15 NE - CZ - NH1 ANGL. DEV. = 3.8 DEGREES REMARK 500 5 ARG A 15 NE - CZ - NH1 ANGL. DEV. = 3.9 DEGREES REMARK 500 6 ARG A 15 NE - CZ - NH1 ANGL. DEV. = 3.7 DEGREES REMARK 500 7 CYS A 30 CA - CB - SG ANGL. DEV. = 6.8 DEGREES REMARK 500 8 ARG A 15 NE - CZ - NH1 ANGL. DEV. = 3.6 DEGREES REMARK 500 9 ARG A 15 NE - CZ - NH1 ANGL. DEV. = 3.1 DEGREES REMARK 500 11 ARG A 15 NE - CZ - NH1 ANGL. DEV. = 3.4 DEGREES REMARK 500 12 ARG A 15 NE - CZ - NH1 ANGL. DEV. = 3.9 DEGREES REMARK 500 13 ARG A 15 NE - CZ - NH1 ANGL. DEV. = 3.7 DEGREES REMARK 500 14 ARG A 15 NE - CZ - NH1 ANGL. DEV. = 3.5 DEGREES REMARK 500 15 ARG A 15 NE - CZ - NH1 ANGL. DEV. = 4.2 DEGREES REMARK 500 17 ARG A 15 NE - CZ - NH1 ANGL. DEV. = 4.1 DEGREES REMARK 500 19 ARG A 15 NE - CZ - NH1 ANGL. DEV. = 4.8 DEGREES REMARK 500 20 ARG A 15 NE - CZ - NH1 ANGL. DEV. = 3.6 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 CYS A 14 -45.08 -133.03 REMARK 500 2 ALA A 3 71.27 36.67 REMARK 500 2 CYS A 10 -57.40 -123.38 REMARK 500 3 PHE A 4 162.29 59.20 REMARK 500 3 CYS A 5 28.94 -75.60 REMARK 500 4 PHE A 4 149.76 71.11 REMARK 500 4 LEU A 7 -22.54 -149.62 REMARK 500 4 GLU A 26 13.11 58.20 REMARK 500 6 GLU A 26 5.46 58.11 REMARK 500 7 SER A 2 160.23 57.90 REMARK 500 7 CYS A 14 -32.97 -130.65 REMARK 500 7 GLU A 26 -58.13 -150.33 REMARK 500 11 ALA A 3 4.20 -159.85 REMARK 500 11 PHE A 4 138.40 57.70 REMARK 500 11 ASN A 6 37.44 -87.93 REMARK 500 11 LEU A 19 -165.90 -124.10 REMARK 500 13 ALA A 3 47.40 -146.10 REMARK 500 14 SER A 2 -0.49 -142.27 REMARK 500 14 ILE A 24 -45.97 -137.74 REMARK 500 15 LEU A 7 -7.67 -149.61 REMARK 500 15 PRO A 32 13.61 -65.79 REMARK 500 16 ASN A 6 45.89 -78.09 REMARK 500 18 PHE A 4 162.49 63.61 REMARK 500 18 LEU A 7 -61.16 -130.30 REMARK 500 19 SER A 2 -30.58 63.78 REMARK 500 20 PRO A 32 41.15 -84.70 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: NON-CIS, NON-TRANS REMARK 500 REMARK 500 THE FOLLOWING PEPTIDE BONDS DEVIATE SIGNIFICANTLY FROM BOTH REMARK 500 CIS AND TRANS CONFORMATION. CIS BONDS, IF ANY, ARE LISTED REMARK 500 ON CISPEP RECORDS. TRANS IS DEFINED AS 180 +/- 30 AND REMARK 500 CIS IS DEFINED AS 0 +/- 30 DEGREES. REMARK 500 MODEL OMEGA REMARK 500 CYS A 30 VAL A 31 7 -149.68 REMARK 500 REMARK 500 REMARK: NULL REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 2ME7 RELATED DB: PDB REMARK 900 RELATED ID: 2MEL RELATED DB: PDB REMARK 900 RELATED ID: 2MEN RELATED DB: PDB REMARK 900 RELATED ID: 19528 RELATED DB: BMRB DBREF 2MEO A 3 33 UNP P59869 KAX54_MESTA 1 31 SEQADV 2MEO GLY A 1 UNP P59869 EXPRESSION TAG SEQADV 2MEO SER A 2 UNP P59869 EXPRESSION TAG SEQADV 2MEO ALA A 8 UNP P59869 ARG 6 ENGINEERED MUTATION SEQADV 2MEO ALA A 9 UNP P59869 ARG 7 ENGINEERED MUTATION SEQRES 1 A 33 GLY SER ALA PHE CYS ASN LEU ALA ALA CYS GLU LEU SER SEQRES 2 A 33 CYS ARG SER LEU GLY LEU LEU GLY LYS CYS ILE GLY GLU SEQRES 3 A 33 GLU CYS LYS CYS VAL PRO TYR HELIX 1 1 ASN A 6 LEU A 12 1 7 HELIX 2 2 SER A 13 GLY A 18 5 6 SHEET 1 A 2 GLY A 21 ILE A 24 0 SHEET 2 A 2 GLU A 27 CYS A 30 -1 O LYS A 29 N LYS A 22 SSBOND 1 CYS A 5 CYS A 23 1555 1555 2.03 SSBOND 2 CYS A 10 CYS A 28 1555 1555 2.04 SSBOND 3 CYS A 14 CYS A 30 1555 1555 2.04 CISPEP 1 GLY A 1 SER A 2 1 -0.95 CISPEP 2 SER A 2 ALA A 3 1 -13.43 CISPEP 3 GLY A 1 SER A 2 2 1.58 CISPEP 4 GLY A 1 SER A 2 7 6.12 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