HEADER TOXIN 14-FEB-06 2CF1 TITLE 3-DIMENSIONAL STRUCTURE OF TAMAPIN FROM MESOBUTHUS TAMULUS COMPND MOL_ID: 1; COMPND 2 MOLECULE: TAMAPIN; COMPND 3 CHAIN: A SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: MESOBUTHUS TAMULUS; SOURCE 3 ORGANISM_COMMON: EASTERN INDIAN SCORPION KEYWDS NEUROTOXIC, AMIDATION, TOXIN, ION CHANNEL INHIBITOR, KEYWDS 2 POTASSIUM CHANNEL INHIBITOR EXPDTA THEORETICAL MODEL AUTHOR R.SUBHASHINI,R.SENTHILKUMAR,B.THIAGARAJAN REVDAT 2 08-JAN-08 2CF1 1 AUTHOR JRNL REVDAT 1 16-FEB-06 2CF1 0 JRNL AUTH R.SUBHASHINI,R.SENTHILKUMAR,B.THIAGARAJAN JRNL TITL 3-DIMENSIONAL STRUCTURE OF TAMAPIN FROM MESOBUTHUS JRNL TITL 2 TAMULUS JRNL REF TO BE PUBLISHED JRNL REFN REMARK 2 REMARK 2 RESOLUTION. NOT APPLICABLE. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : AMBER REMARK 3 AUTHORS : PEARLMAN,CASE,CALDWELL,ROSS,CHEATHAM, REMARK 3 FERGUSON,SEIBEL,SINGH,WEINER,KOLLMAN REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 236 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 0 REMARK 3 SOLVENT ATOMS : 0 REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 2CF1 COMPLIES WITH FORMAT V. 3.1, 01-AUG-2007 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY EBI ON 14-FEB-2006. REMARK 100 THE EBI ID CODE IS EBI-27746. REMARK 220 REMARK 220 EXPERIMENTAL DETAILS REMARK 220 EXPERIMENT TYPE : THEORETICAL MODELLING REMARK 220 REMARK 220 REMARK: THIS MODEL WAS BUILT USING THE STRUCTURE OF REMARK 220 TAPAMIN-SENSITIVE POTASSIUM CHANNEL REMARK 225 REMARK 225 THEORETICAL MODEL REMARK 225 THE COORDINATES IN THIS ENTRY REPRESENT A MODEL STRUCTURE. REMARK 225 PROTEIN DATA BANK CONVENTIONS REQUIRE THAT CRYST1 AND REMARK 225 SCALE RECORDS BE INCLUDED, BUT THE VALUES ON THESE REMARK 225 RECORDS ARE MEANINGLESS. REMARK 300 REMARK 300 BIOMOLECULE: 1 REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND PROGRAM REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN REMARK 300 THIS ENTRY. THE REMARK ALSO PROVIDES INFORMATION ON REMARK 300 BURIED SURFACE AREA. REMARK 350 REMARK 350 GENERATING THE BIOMOLECULE 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: PQS 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 400 REMARK 400 COMPOUND REMARK 400 BLOCKS SMALL CONDUCTANCE CALCIUM-ACTIVATED POTASSIUM REMARK 400 CHANNELS IN PYRAMIDAL NEURONS OF THE HIPPOCAMPUS. REMARK 400 DISPLAYS A UNIQUE, REMARKABLE SELECTIVITY FOR SK2/KCNN2 REMARK 400 VERSUS SK1/KCNN1 AND SK3/KCNN3 CHANNELS. 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: ENGH AND HUBER, 1999 REMARK 500 EXPECTED VALUES NUCELIC ACID: CLOWNEY ET AL 1996 REMARK 500 REMARK 500 M RES CSSEQI ATM1 ATM2 ATM3 REMARK 500 ARG A 13 NE - CZ - NH1 ANGL. DEV. = 5.2 DEGREES REMARK 500 ARG A 13 NE - CZ - NH2 ANGL. DEV. = -3.4 DEGREES REMARK 500 TYR A 31 CB - CG - CD2 ANGL. DEV. = -4.8 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 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 PHE A 2 -163.20 -129.97 REMARK 500 REMARK 500 REMARK: NULL DBREF 2CF1 A 1 31 UNP P59869 SCKT1_MESTA 1 31 SEQRES 1 A 31 ALA PHE CYS ASN LEU ARG ARG CYS GLU LEU SER CYS ARG SEQRES 2 A 31 SER LEU GLY LEU LEU GLY LYS CYS ILE GLY GLU GLU CYS SEQRES 3 A 31 LYS CYS VAL PRO TYR HELIX 1 1 ASN A 4 ARG A 13 1 10 SHEET 1 AA 2 LEU A 18 ILE A 22 0 SHEET 2 AA 2 GLU A 25 VAL A 29 -1 O GLU A 25 N ILE A 22 SSBOND 1 CYS A 3 CYS A 21 1555 1555 2.39 SSBOND 2 CYS A 12 CYS A 28 1555 1555 2.12 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 MASTER 98 0 0 1 2 0 0 6 0 0 0 3 END