HEADER TOXIN 25-AUG-09 2KNI TITLE HIGH-RESOLUTION SOLUTION STRUCTURE OF THE ASIC1A BLOCKER PCTX1 COMPND MOL_ID: 1; COMPND 2 MOLECULE: PSALMOTOXIN-1; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: PCTX1; COMPND 5 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: PSALMOPOEUS CAMBRIDGEI; SOURCE 3 ORGANISM_COMMON: TRINIDAD CHEVRON TARANTULA; SOURCE 4 ORGANISM_TAXID: 179874; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 7 EXPRESSION_SYSTEM_STRAIN: BL21; SOURCE 8 EXPRESSION_SYSTEM_VECTOR: PLICC KEYWDS PSALMOTOXIN 1, PI-THERAPHOTOXIN-PC1A, CYSTINE KNOT, SPIDER TOXIN, KEYWDS 2 PEPTIDE TOXIN, DISULFIDE BOND, IONIC CHANNEL INHIBITOR, KNOTTIN, KEYWDS 3 NEUROTOXIN, SECRETED, ASIC1A INHIBITOR, ACID SENSING ION CHANNEL 1A KEYWDS 4 INHIBITOR, TOXIN EXPDTA SOLUTION NMR NUMMDL 25 AUTHOR G.F.KING,M.MOBLI,N.J.SAEZ REVDAT 4 14-JUN-23 2KNI 1 REMARK REVDAT 3 26-FEB-20 2KNI 1 REMARK SEQADV REVDAT 2 30-JAN-13 2KNI 1 JRNL VERSN REVDAT 1 01-SEP-10 2KNI 0 JRNL AUTH N.J.SAEZ,M.MOBLI,M.BIERI,I.R.CHASSAGNON,A.K.MALDE, JRNL AUTH 2 R.GAMSJAEGER,A.E.MARK,P.R.GOOLEY,L.D.RASH,G.F.KING JRNL TITL A DYNAMIC PHARMACOPHORE DRIVES THE INTERACTION BETWEEN JRNL TITL 2 PSALMOTOXIN-1 AND THE PUTATIVE DRUG TARGET ACID-SENSING ION JRNL TITL 3 CHANNEL 1A. JRNL REF MOL.PHARMACOL. V. 80 796 2011 JRNL REFN ISSN 0026-895X JRNL PMID 21825095 JRNL DOI 10.1124/MOL.111.072207 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH P.ESCOUBAS,C.BERNARD,G.LAMBEAU,M.LAZDUNSKI,H.DARBON REMARK 1 TITL RECOMBINANT PRODUCTION AND SOLUTION STRUCTURE OF PCTX1, THE REMARK 1 TITL 2 SPECIFIC PEPTIDE INHIBITOR OF ASIC1A PROTON-GATED CATION REMARK 1 TITL 3 CHANNELS. REMARK 1 REF PROTEIN SCI. V. 12 1332 2003 REMARK 1 REFN ISSN 0961-8368 REMARK 1 PMID 12824480 REMARK 1 DOI 10.1110/PS.0307003 REMARK 2 REMARK 2 RESOLUTION. NOT APPLICABLE. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CYANA 2.1 REMARK 3 AUTHORS : P.GUNTERT ET AL. REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 2KNI COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 01-SEP-09. REMARK 100 THE DEPOSITION ID IS D_1000101340. REMARK 210 REMARK 210 EXPERIMENTAL DETAILS REMARK 210 EXPERIMENT TYPE : NMR REMARK 210 TEMPERATURE (KELVIN) : 298 REMARK 210 PH : 6.0 REMARK 210 IONIC STRENGTH : 10 REMARK 210 PRESSURE : AMBIENT REMARK 210 SAMPLE CONTENTS : 0.3 MM [U-99% 13C; U-99% 15N] REMARK 210 PCTX1-1, 93% H2O/7% D2O; 0.3 MM REMARK 210 [U-99% 13C; U-99% 15N] PCTX1-2, REMARK 210 100% D2O REMARK 210 REMARK 210 NMR EXPERIMENTS CONDUCTED : 3D 1H-15N NOESY; 3D HNCACB; 3D REMARK 210 CBCA(CO)NH; 3D HNCO; 3D C(CO)NH; REMARK 210 3D H(CCO)NH; 2D 1H-15N HSQC; 3D REMARK 210 HNHB; 4D HC(CO)NH-TOCSY; 3D 1H- REMARK 210 13C NOESY REMARK 210 SPECTROMETER FIELD STRENGTH : 900 MHZ REMARK 210 SPECTROMETER MODEL : AVANCE REMARK 210 SPECTROMETER MANUFACTURER : BRUKER REMARK 210 REMARK 210 STRUCTURE DETERMINATION. REMARK 210 SOFTWARE USED : CYANA 2.1, XEASY, REMARK 210 ROWLAND_NMR_TOOLKIT REMARK 210 METHOD USED : TORSION ANGLE DYNAMICS REMARK 210 REMARK 210 CONFORMERS, NUMBER CALCULATED : 300 REMARK 210 CONFORMERS, NUMBER SUBMITTED : 25 REMARK 210 CONFORMERS, SELECTION CRITERIA : BEST MOLPROBITY SCORE REMARK 210 REMARK 210 BEST REPRESENTATIVE CONFORMER IN THIS ENSEMBLE : 1 REMARK 210 REMARK 210 REMARK: REMARK 210 THIS STRUCTURE WAS DETERMINED USING A COMBINATION OF NOESY-DERIVED REMARK 210 DISTANCE RESTRAINTS, TALOS-DERIVED DIHEDRAL-ANGLE RESTRAINTS, AND REMARK 210 HYDROGEN-BOND RESTRAINTS DERIVED FROM A LONG-RANGE HNCO EXPERIMENT. REMARK 210 THE AUTHOR SHOWS THE MOLPROBITY STATISTICS AS FOLLOWS. MOLPROBITY REMARK 210 OUTPUT SCORES: AVERAGE ALL-ATOM CLASHSCORE 0.0, AVERAGE REMARK 210 RAMACHANDRAN OUTLIERS 0.0%, AVERAGE RAMACHANDRAN FAVORED 83.9%, REMARK 210 AVERAGE MOLPROBITY SCORE 1.68, AVERAGE MOLPROBITY PERCENTILE RANK REMARK 210 89.4 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: 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 6 -170.19 -69.80 REMARK 500 1 TRP A 8 73.07 59.67 REMARK 500 1 ASN A 13 19.23 -145.10 REMARK 500 2 PRO A 6 -170.94 -69.71 REMARK 500 2 TRP A 8 73.20 61.05 REMARK 500 2 ASP A 17 12.66 -145.70 REMARK 500 3 PRO A 6 -170.86 -69.83 REMARK 500 3 TRP A 8 72.18 60.11 REMARK 500 3 ASN A 13 -40.44 -132.68 REMARK 500 3 ASP A 17 16.17 -146.99 REMARK 500 3 SER A 30 -169.40 -116.72 REMARK 500 4 PRO A 6 -171.03 -69.73 REMARK 500 4 TRP A 8 76.06 61.69 REMARK 500 4 ASN A 13 -41.89 -139.16 REMARK 500 4 ASP A 17 12.10 -143.21 REMARK 500 4 ARG A 28 -61.42 -95.29 REMARK 500 4 PRO A 39 95.41 -69.77 REMARK 500 5 PRO A 6 -170.73 -69.73 REMARK 500 5 TRP A 8 68.55 62.83 REMARK 500 5 ASP A 17 13.92 -144.32 REMARK 500 6 ASP A 3 65.54 -106.75 REMARK 500 6 PRO A 6 -170.75 -69.76 REMARK 500 6 TRP A 8 67.98 63.29 REMARK 500 6 ASN A 13 -39.02 -130.27 REMARK 500 6 ASP A 17 16.00 -147.06 REMARK 500 6 PRO A 39 82.76 -69.79 REMARK 500 7 PRO A 6 -170.91 -69.76 REMARK 500 7 TRP A 8 73.32 61.89 REMARK 500 7 ASN A 13 18.21 -147.22 REMARK 500 7 PRO A 39 83.83 -69.76 REMARK 500 8 PRO A 6 -170.53 -69.83 REMARK 500 8 TRP A 8 70.35 60.69 REMARK 500 8 ASN A 13 -40.18 -131.76 REMARK 500 8 ASP A 17 15.90 -146.45 REMARK 500 8 ARG A 27 147.31 -173.64 REMARK 500 9 PRO A 6 -170.45 -69.75 REMARK 500 9 TRP A 8 70.41 63.87 REMARK 500 9 ASN A 13 -40.59 -132.17 REMARK 500 9 ASP A 17 12.92 -142.30 REMARK 500 10 PRO A 6 -170.52 -69.72 REMARK 500 10 TRP A 8 69.62 63.96 REMARK 500 10 ASP A 17 13.47 -144.41 REMARK 500 11 PRO A 6 -170.25 -69.74 REMARK 500 11 TRP A 8 73.69 63.91 REMARK 500 11 ASN A 13 18.99 -143.97 REMARK 500 11 PRO A 39 -174.90 -69.74 REMARK 500 12 PRO A 6 -169.37 -69.78 REMARK 500 12 TRP A 8 77.22 66.24 REMARK 500 12 CYS A 11 63.98 -118.66 REMARK 500 12 ASN A 13 -41.91 -138.46 REMARK 500 REMARK 500 THIS ENTRY HAS 97 RAMACHANDRAN OUTLIERS. REMARK 500 REMARK 500 REMARK: NULL REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1LMM RELATED DB: PDB REMARK 900 RELATED ID: 16468 RELATED DB: BMRB DBREF 2KNI A 2 41 UNP P60514 TXP1_PSACA 1 40 SEQADV 2KNI SER A 1 UNP P60514 EXPRESSION TAG SEQRES 1 A 41 SER GLU ASP CYS ILE PRO LYS TRP LYS GLY CYS VAL ASN SEQRES 2 A 41 ARG HIS GLY ASP CYS CYS GLU GLY LEU GLU CYS TRP LYS SEQRES 3 A 41 ARG ARG ARG SER PHE GLU VAL CYS VAL PRO LYS THR PRO SEQRES 4 A 41 LYS THR HELIX 1 1 ARG A 14 CYS A 18 5 5 SHEET 1 A 2 LEU A 22 TRP A 25 0 SHEET 2 A 2 VAL A 33 PRO A 36 -1 O VAL A 35 N GLU A 23 SSBOND 1 CYS A 4 CYS A 19 1555 1555 1.99 SSBOND 2 CYS A 11 CYS A 24 1555 1555 2.00 SSBOND 3 CYS A 18 CYS A 34 1555 1555 1.99 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