Exploring structural features of the interaction between the scorpion toxin CnErg1 and ERG K+ channels

Proteins: Structure, Function and Genetics

Volumn 56, Issue 2, 2004, Pages 367-375

  Frénal, Karine ^a   Xu, Chen Qi ^b,d   Wolff, Nicolas ^a   Wecker, Karine ^a   Gurrola, Georgina B ^c   Zhu, Shun Yi ^d   Chi, Cheng Wu ^b,e   Possani, Lourival D ^c   Tytgat, Jan ^d   Delepierre, Muriel ^a  

^a INSTITUT PASTEUR   (France)

^b INSTITUTE OF BIOCHEMISTRY AND CELL BIOLOGY   (China)

^c INSTITUTO DE BIOTECNOLOGÍA   (Mexico)

^d UNIVERSITY OF LEUVEN   (Belgium)

^e TONGJI UNIVERSITY   (China)

Author keywords

ERG channel; Ergtoxin; Evolutionary trace analysis; NMR structure; Scorpion toxin

Indexed keywords

AGITOXIN 2; CALCIUM ACTIVATED POTASSIUM CHANNEL; DISULFIDE; ERGTOXIN; POTASSIUM CHANNEL HERG; SCORPION VENOM; TOXIN; UNCLASSIFIED DRUG;

ALPHA HELIX; ARTICLE; BETA SHEET; CENTRUROIDES NOXIUS; HYDROGEN BOND; HYDROPHILICITY; HYDROPHOBICITY; MOLECULAR INTERACTION; NONHUMAN; NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY; PRIORITY JOURNAL; SCORPION; STRUCTURE ANALYSIS;

AMINO ACID SEQUENCE; ANIMALS; CONSENSUS SEQUENCE; ETHER-A-GO-GO POTASSIUM CHANNELS; EVOLUTION, MOLECULAR; HUMANS; HYDROGEN BONDING; HYDROPHOBICITY; MODELS, MOLECULAR; MOLECULAR SEQUENCE DATA; NUCLEAR MAGNETIC RESONANCE, BIOMOLECULAR; PHYLOGENY; POTASSIUM CHANNEL BLOCKERS; POTASSIUM CHANNELS; POTASSIUM CHANNELS, VOLTAGE-GATED; PROTEIN BINDING; PROTEIN CONFORMATION; PROTEIN INTERACTION MAPPING; SCORPION VENOMS; SEQUENCE ALIGNMENT; SOFTWARE; STRUCTURE-ACTIVITY RELATIONSHIP;

CENTRUROIDES; CENTRUROIDES NOXIUS; SCORPIONES;

EID: 16744366798     PISSN: 08873585     EISSN: None     Source Type: Journal    
DOI: 10.1002/prot.20102     Document Type: Article

References (43)

1. Wickenden A. K(+) channels as therapeutic drug targets. Pharmacol Ther 2002;94:157-182.
2. Tytgat J, Chandy KG, Garcia ML, Gutman, GA, Martin-Eauclaire MF, van der Walt JJ, Possani LD. A unified nomenclature for short-chain peptides isolated from scorpion venoms: alpha-KTx molecular subfamilies. Trends Pharmacol Sci 1999;20:444-447.
3. + channels and scorpion toxins. Trends Pharmacol Sci 2003;24:222-227.
4. Warmke JW, Ganetzky B. A family of potassium channel genes related to EAG in Drosophila and mammals. Proc Natl Acad Sci USA 1994;91:3438-3442.
5. Curran ME, Splawski I, Timothy KW, Vincent GM, Green ED, Keating MT. A molecular basis for cardiac arrhythmia: HERG mutations cause long QT syndrome. Cell 1995;80:795-803.
6. Pardo-Lopez L, Zhang M, Liu J, Jiang M, Possani LD, Tseng GN. Mapping the binding site of a human ether-a-go-go-related gene-specific peptide toxin (ErgTx) to the channel's outer vestibule. J Biol Chem 2002;277:16403-16411.
7. + channels: what is the difference? Trends Pharmacol Sci 2003;24: 446-448.
8. Yao H, Kristensen DM, Mihalek I, Sowa M E, Shaw C, Kimmel M, Kavraki L, Lichtarge O. An accurate, sensitive, and scalable method to identify functional sites in protein structures. J Mol Biol 2003;326:255-261.
9. Torres AM, Bansal P, Alewood PF, Bursill JA, Kuchel PW, Vandenberg JI. Solution structure of CnErg1 (ergtoxin), a HERG specific scorpion toxin. FEBS Lett 2003;539:138-142.
10. Pritchard L, Dufton MJ. Evolutionary trace analysis of the Kunitz/BPTI family of proteins: functional divergence may have been based on conformational adjustment. J Mol Biol 1999;285: 1589-1607.
11. Innis CA, Shi J, Blundell TL. Evolutionary trace analysis of TGF-beta and related growth factors: implications for site-directed mutagenesis. Protein Eng 2000;13:839-847.
12. Aloy P, Querol E, Aviles FX, Sternberg MJ. Automated structure-based prediction of functional sites in proteins: applications to assessing the validity of inheriting protein function from homology in genome annotation and to protein docking. J Mol Biol 2001;311:395-408.
13. Lichtarge O, Bourne HR, Cohen FE. An evolutionary trace method defines binding surfaces common to protein families. J Mol Biol 1996;257:342-358.
14. + channels isolated from Centruroïdes noxius scorpion venom. FASEB J 1999;13:953-962.
15. + channel. FEBS Lett 2000;479:156-157.
16. Kupce E, Keifer PA, Delepierre, M. Adiabatic TOCSY MAS in liquids. J Magn Reson 2001;148:115-120.
17. Kumar A, Ernst RR, Wüthrich K. A two-dimensional nuclear Overhauser enhancement (2D NOE) experiment for the elucidation of complete proton-proton cross-relaxation networks in biological macromolecules. Biochem Biophys Res Commun 1980;95:1-6.
18. Aue WP, Bartholi E, Ernst RR. Two-dimensional spectroscopy: application to nuclear magnetic resonance. J Chem Phys 1976;64: 2229-2246.
19. Boyd J, Dobson CM, Redfield C. Correlation of proton chemical shifts in proteins using two-dimensional double-quantum spectroscopy. J Magn Reson 1983;55:170-176.
20. Braunschweiler L, Ernst RR. Coherence transfer by isotropic mixing: application to proton correlation spectroscopy. J Magn Reson 1983;53:521-528.
21. Piotto M, Saudek V, Sklenar V. Gradient-tailored excitation for single-quantum NMR spectroscopy of aqueous solutions. J Biomol NMR 1992;2:661-665.
22. Wüthrich K. NMR of proteins and nucleic acids. New York: Wiley; 1986.
23. Bartels C, Xia T-H, Billeter M, Güntert P, Wüthrich K. The program XEASY for computer-supported NMR spectral analysis of biological macromolecules. J Biomol NMR 1995;5:1-10.
24. Nilges M, Macias MJ, O'Donoghue SI, Oschkinat H. Automated NOESY interpretation with ambiguous distance restraints: the refined NMR solution structure of the pleckstrin homology domain from beta-spectrin. J Mol Biol 1997;269:408-422.
25. Linge JP, O'Donoghue SI, Nilges M. Automated assignment of ambiguous nuclear overhauser effects with ARIA. Methods Enzymol 2001;339:71-90.
26. Brunger AT, Adams PD, Clore GM, DeLano WL, Gros P, Grosse-Kunstleve RW, Jiang JS, Kuszewski J, Nilges M, Pannu NS, Read RJ, Rice LM, Simonson T, Warren GL. Crystallography & NMR System: a new software suite for macromolecular structure determination. Acta Crystallogr D Biol Crystallogr 1998;54:905-921.
27. Linge JP, Habeck M, Rieping W, Nilges M. ARIA: automated NOE assignment and NMR structure calculation. Bioinformatics 2003; 19:315-316.
28. + channel. Nature 2003;423:33-41.
29. Peitsch MC, Schwede T, Guex N. Automated protein modelling-the proteome in 3D. Pharmacogenomics 2000;1:257-266.
30. +-channels blocking peptides from scorpions of the genus Centruroïdes. FEBS Lett 2002;532:121-126.
31. Zhang M, Korolkova YV, Liu J, Jiang M, Grishin EV, Tseng GN. BeKm-1 is a hERG-specific toxin that shares the structure with ChTx but the mechanism of action with ErgTx1. Biophys J 2003;84:3022-3036.
32. + channel, SkCa2. J Biol Chem 2001;276:43145-43151.
33. +-channels. Perspectives Drug Disc Des 1999;15/16:15-40.
34. Garcia ML, Gao Y, McManus OB, Kaczorowski GJ. Potassium channels: from scorpion venoms to high-resolution structure. Toxicon 2001;39:739-748.
35. + channel: peptide and channel residues mediating molecular recognition. Neuron 1994;12:1377-1388.
36. + channel selectivity filter by mutant cycle-based structure analysis. Neuron 1996;16:131-139.
37. Schroeder N, Mullmann TJ, Schmalhofer WA, Gao YD, Garcia ML, Giangiacomo KM. Glycine 30 in iberiotoxin is a critical determinant of its specificity for maxi-K versus K(V) channels. FEBS Lett 2002;527:298-302.
38. Zhu S, Isabelle H, Dyason K, Verdonck F, Tytgat J, Huys I. Evolutionary trace analysis of scorpion toxins specific for K-channels. Proteins 2004;54:361-370.
39. Korolkova YV, Bocharov EV, Angelo K, Maslennikov IV, Grinenko OV, Lipkin AV, Nosyreva ED, Pluzhnikov KA, Olesen SP, Arseniev AS, Grishin EV. New binding site on common molecular scaffold provides HERG channel specificity of scorpion toxin BeKm-1. J Biol Chem 2002;277:43104-43109.
40. Pardo-Lopez L, Garcia-Valdes J, Gurrola GB, Robertson GA, Possani LD. Mapping the receptor site for ergtoxin, a specific blocker of ERG channels. FEBS Lett 2002;510:45-49.
41. Liu J, Zhang M, Jiang M, Tseng GN. Structural and functional role of the extracellular s5-p linker in the HERG potassium channel. J Gen Physiol 2002;120:723-737.
42. Zacharias N, Dougherty DA. Cation-pi interactions in ligand recognition and catalysis. Trends Pharmacol Sci 2002;23:281-287.
43. Possani LD, Rodriguez de la Vega, RC. Response to Xu et al.: hypothesis-driven science paves the way for new discoveries. Trends Pharmacol Sci 2003;24:448-449.