HEADER TOXIN 24-APR-14 2MOA TITLE SOLUTION NMR STRUCTURE OF PEPTIDE IMI1 (PEAK 2) COMPND MOL_ID: 1; COMPND 2 MOLECULE: ALPHA-CONOTOXIN IMI; COMPND 3 CHAIN: A; COMPND 4 FRAGMENT: UNP RESIDUES 5-16; COMPND 5 SYNONYM: ALPHA-CTX IMI; COMPND 6 ENGINEERED: YES; COMPND 7 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 SYNTHETIC: YES; SOURCE 3 ORGANISM_SCIENTIFIC: CONUS IMPERIALIS; SOURCE 4 ORGANISM_COMMON: IMPERIAL CONE; SOURCE 5 ORGANISM_TAXID: 35631 KEYWDS DITHIOL AMINO ACID, CONOTOXIN, BICYCLIC PEPTIDE, MACROCYCLE, PHAGE KEYWDS 2 DISPLAY, TOXIN EXPDTA SOLUTION NMR NUMMDL 20 AUTHOR C.HEINIS,S.CHEN REVDAT 4 15-NOV-23 2MOA 1 ATOM REVDAT 3 14-JUN-23 2MOA 1 REMARK SEQADV LINK REVDAT 2 05-NOV-14 2MOA 1 JRNL REVDAT 1 24-SEP-14 2MOA 0 JRNL AUTH S.CHEN,R.GOPALAKRISHNAN,T.SCHAER,F.MARGER,R.HOVIUS, JRNL AUTH 2 D.BERTRAND,F.POJER,C.HEINIS JRNL TITL DITHIOL AMINO ACIDS CAN STRUCTURALLY SHAPE AND ENHANCE THE JRNL TITL 2 LIGAND-BINDING PROPERTIES OF POLYPEPTIDES. JRNL REF NAT CHEM V. 6 1009 2014 JRNL REFN ESSN 1755-4349 JRNL PMID 25343607 JRNL DOI 10.1038/NCHEM.2043 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH J.GEHRMANN,N.L.DALY,P.F.ALEWOOD,D.J.CRAIK REMARK 1 TITL SOLUTION STRUCTURE OF ALPHA-CONOTOXIN IMI BY 1H NUCLEAR REMARK 1 TITL 2 MAGNETIC RESONANCE. REMARK 1 REF J.MED.CHEM. V. 42 2364 1999 REMARK 1 REFN ISSN 0022-2623 REMARK 1 PMID 10395477 REMARK 1 DOI 10.1021/JM990114P REMARK 1 REFERENCE 2 REMARK 1 AUTH I.V.MASLENNIKOV,Z.O.SHENKAREV,M.N.ZHMAK,V.T.IVANOV, REMARK 1 AUTH 2 C.METHFESSEL,V.I.TSETLIN,A.S.ARSENIEV REMARK 1 TITL NMR SPATIAL STRUCTURE OF ALPHA-CONOTOXIN IMI REVEALS A REMARK 1 TITL 2 COMMON SCAFFOLD IN SNAIL AND SNAKE TOXINS RECOGNIZING REMARK 1 TITL 3 NEURONAL NICOTINIC ACETYLCHOLINE RECEPTORS. REMARK 1 REF FEBS LETT. V. 444 275 1999 REMARK 1 REFN ISSN 0014-5793 REMARK 1 PMID 10050774 REMARK 1 DOI 10.1016/S0014-5793(99)00069-1 REMARK 1 REFERENCE 3 REMARK 1 AUTH J.P.ROGERS,P.LUGINBUHL,G.S.SHEN,R.T.MCCABE,R.C.STEVENS, REMARK 1 AUTH 2 D.E.WEMMER REMARK 1 TITL NMR SOLUTION STRUCTURE OF ALPHA-CONOTOXIN IMI AND COMPARISON REMARK 1 TITL 2 TO OTHER CONOTOXINS SPECIFIC FOR NEURONAL NICOTINIC REMARK 1 TITL 3 ACETYLCHOLINE RECEPTORS. REMARK 1 REF BIOCHEMISTRY V. 38 3874 1999 REMARK 1 REFN ISSN 0006-2960 REMARK 1 PMID 10194298 REMARK 1 DOI 10.1021/BI9826254 REMARK 1 REFERENCE 4 REMARK 1 AUTH H.LAMTHANH,C.JEGOU-MATHERON,D.SERVENT,A.MENEZ,J.M.LANCELIN REMARK 1 TITL MINIMAL CONFORMATION OF THE ALPHA-CONOTOXIN IMI FOR THE REMARK 1 TITL 2 ALPHA7 NEURONAL NICOTINIC ACETYLCHOLINE RECEPTOR REMARK 1 TITL 3 RECOGNITION: CORRELATED CD, NMR AND BINDING STUDIES. REMARK 1 REF FEBS LETT. V. 454 293 1999 REMARK 1 REFN ISSN 0014-5793 REMARK 1 PMID 10431825 REMARK 1 DOI 10.1016/S0014-5793(99)00831-5 REMARK 1 REFERENCE 5 REMARK 1 AUTH C.ULENS,R.C.HOGG,P.H.CELIE,D.BERTRAND,V.TSETLIN,A.B.SMIT, REMARK 1 AUTH 2 T.K.SIXMA REMARK 1 TITL STRUCTURAL DETERMINANTS OF SELECTIVE ALPHA-CONOTOXIN BINDING REMARK 1 TITL 2 TO A NICOTINIC ACETYLCHOLINE RECEPTOR HOMOLOG ACHBP. REMARK 1 REF PROC.NATL.ACAD.SCI.USA V. 103 3615 2006 REMARK 1 REFN ISSN 0027-8424 REMARK 1 PMID 16505382 REMARK 1 DOI 10.1073/PNAS.0507889103 REMARK 2 REMARK 2 RESOLUTION. NOT APPLICABLE. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : SPARKY 3.113, CNS, AMBER REMARK 3 AUTHORS : GODDARD (SPARKY), BRUNGER, ADAMS, CLORE, GROS, REMARK 3 NILGES AND READ (CNS), CASE, DARDEN, CHEATHAM, III, REMARK 3 SIMMERLING, WANG, DUKE, LUO, ... AND KOLLMAN REMARK 3 (AMBER) REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 2MOA COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 29-APR-14. REMARK 100 THE DEPOSITION ID IS D_1000103854. REMARK 210 REMARK 210 EXPERIMENTAL DETAILS REMARK 210 EXPERIMENT TYPE : NMR REMARK 210 TEMPERATURE (KELVIN) : 278 REMARK 210 PH : 5.8 REMARK 210 IONIC STRENGTH : 0.1 REMARK 210 PRESSURE : AMBIENT REMARK 210 SAMPLE CONTENTS : 1 MM IMI1, 90% H2O/10% D2O REMARK 210 REMARK 210 NMR EXPERIMENTS CONDUCTED : 2D 1H-1H NOESY; 2D 1H-1H TOCSY; REMARK 210 2D DQF-COSY REMARK 210 SPECTROMETER FIELD STRENGTH : 800 MHZ REMARK 210 SPECTROMETER MODEL : AVANCE REMARK 210 SPECTROMETER MANUFACTURER : BRUKER REMARK 210 REMARK 210 STRUCTURE DETERMINATION. REMARK 210 SOFTWARE USED : CNS 1.3, AMBER 11, PROCHECKNMR, REMARK 210 TOPSPIN 2.1 REMARK 210 METHOD USED : SIMULATED ANNEALING, MOLECULAR REMARK 210 DYNAMICS REMARK 210 REMARK 210 CONFORMERS, NUMBER CALCULATED : 50 REMARK 210 CONFORMERS, NUMBER SUBMITTED : 20 REMARK 210 CONFORMERS, SELECTION CRITERIA : TARGET FUNCTION 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 400 REMARK 400 COMPOUND REMARK 400 REMARK 400 THE ALPHA-CONOTOXIN IMI MUTANT IS CYCLIC PEPTIDE, A MEMBER OF TOXIN REMARK 400 CLASS. REMARK 400 REMARK 400 GROUP: 1 REMARK 400 NAME: ALPHA-CONOTOXIN IMI MUTANT REMARK 400 CHAIN: A REMARK 400 COMPONENT_1: PEPTIDE LIKE POLYMER REMARK 400 DESCRIPTION: 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 1 ARG A 11 NE - CZ - NH1 ANGL. DEV. = 3.1 DEGREES REMARK 500 2 ARG A 7 NE - CZ - NH1 ANGL. DEV. = 3.7 DEGREES REMARK 500 4 ARG A 7 NE - CZ - NH1 ANGL. DEV. = 3.5 DEGREES REMARK 500 4 ARG A 11 NE - CZ - NH1 ANGL. DEV. = 3.5 DEGREES REMARK 500 5 ARG A 7 NE - CZ - NH1 ANGL. DEV. = 3.2 DEGREES REMARK 500 5 ARG A 11 NE - CZ - NH1 ANGL. DEV. = 4.2 DEGREES REMARK 500 7 ARG A 11 NE - CZ - NH1 ANGL. DEV. = 3.6 DEGREES REMARK 500 9 ARG A 11 NE - CZ - NH1 ANGL. DEV. = 3.4 DEGREES REMARK 500 10 ARG A 11 NE - CZ - NH1 ANGL. DEV. = 4.0 DEGREES REMARK 500 11 ARG A 7 NE - CZ - NH1 ANGL. DEV. = 3.9 DEGREES REMARK 500 11 ARG A 7 NE - CZ - NH2 ANGL. DEV. = -3.2 DEGREES REMARK 500 11 ARG A 11 NE - CZ - NH1 ANGL. DEV. = 3.6 DEGREES REMARK 500 12 ARG A 11 NE - CZ - NH1 ANGL. DEV. = 3.9 DEGREES REMARK 500 13 ARG A 11 NE - CZ - NH1 ANGL. DEV. = 4.0 DEGREES REMARK 500 15 ARG A 11 NE - CZ - NH1 ANGL. DEV. = 3.2 DEGREES REMARK 500 16 ARG A 11 NE - CZ - NH1 ANGL. DEV. = 3.0 DEGREES REMARK 500 17 ARG A 7 NE - CZ - NH1 ANGL. DEV. = 4.2 DEGREES REMARK 500 17 ARG A 11 NE - CZ - NH1 ANGL. DEV. = 3.3 DEGREES REMARK 500 19 ARG A 11 NE - CZ - NH1 ANGL. DEV. = 3.9 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 2 TRP A 10 -45.35 -21.82 REMARK 500 12 TRP A 10 -44.38 -26.56 REMARK 500 13 TRP A 10 3.88 -66.47 REMARK 500 13 ARG A 11 -38.91 -130.31 REMARK 500 16 TRP A 10 -36.19 -23.75 REMARK 500 18 TRP A 10 -62.29 -22.54 REMARK 500 REMARK 500 REMARK: NULL REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 4OS1 RELATED DB: PDB REMARK 900 RELATED ID: 4OS2 RELATED DB: PDB REMARK 900 RELATED ID: 4OS4 RELATED DB: PDB REMARK 900 RELATED ID: 4OS5 RELATED DB: PDB REMARK 900 RELATED ID: 4OS6 RELATED DB: PDB REMARK 900 RELATED ID: 4OS7 RELATED DB: PDB REMARK 900 RELATED ID: 1IMI RELATED DB: PDB REMARK 900 RELATED ID: 1IM1 RELATED DB: PDB REMARK 900 RELATED ID: 1CNL RELATED DB: PDB REMARK 900 RELATED ID: 2C9T RELATED DB: PDB REMARK 900 RELATED ID: 1G2G RELATED DB: PDB REMARK 900 RELATED ID: 1E74 RELATED DB: PDB REMARK 900 RELATED ID: 2BC7 RELATED DB: PDB REMARK 900 RELATED ID: 19932 RELATED DB: BMRB DBREF 2MOA A 1 12 UNP P50983 CA1_CONIM 5 16 SEQADV 2MOA 81S A 2 UNP P50983 CYS 6 ENGINEERED MUTATION SEQADV 2MOA ALA A 3 UNP P50983 CYS 7 ENGINEERED MUTATION SEQADV 2MOA NH2 A 13 UNP P50983 AMIDATION SEQRES 1 A 13 GLY 81S ALA SER ASP PRO ARG CYS ALA TRP ARG CYS NH2 HET 81S A 2 16 HET NH2 A 13 3 HETNAM 81S (4S)-4,5-DISULFANYL-L-NORVALINE HETNAM NH2 AMINO GROUP FORMUL 1 81S C5 H11 N O2 S2 FORMUL 1 NH2 H2 N HELIX 1 1 ASP A 5 TRP A 10 1 6 LINK C GLY A 1 N 81S A 2 1555 1555 1.33 LINK C 81S A 2 N ALA A 3 1555 1555 1.33 LINK SE 81S A 2 SG CYS A 8 1555 1555 2.03 LINK SD2 81S A 2 SG CYS A 12 1555 1555 2.03 LINK C CYS A 12 N NH2 A 13 1555 1555 1.33 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