2C9T	Receptor Toxin	date	Dec 14, 2005
title	Crystal Structure Of Acetylcholine Binding Protein (Achbp) From Aplysia Californica In Complex With Alpha-Conotoxin Imi
authors	C.Ulens, R.C.Hogg, P.H.Celie, D.Bertrand, V.Tsetlin, A.B.Smit, T.K.Sixma
compound		source
Molecule: Soluble Acetylcholine Receptor Chain: A, B, C, D, E, F, G, H, I, J Synonym: Acetylcholine Binding Protein Other_details: Alpha-Conotoxin Imi Bound In Receptor Sites		Organism_scientific: Aplysia Californica Organism_common: California Sea Hare Organism_taxid: 6500
Molecule: Alpha-Conotoxin Imi Chain: K, M, O, P, Q, R, S, T Fragment: Residues 5-16 Synonym: Alpha-Ctx Imi Other_details: Alpha-Conotoxin Imi Bound In Receptor Sites		Organism_scientific: Conus Imperialis Organism_common: Imperial Cone Organism_taxid: 35631
symmetry	Space Group: P 1 21 1	R_factor 0.168 R_Free 0.227
crystal cell	length a length b length c angle alpha angle beta angle gamma 113.211 123.131 118.749 90.00 117.47 90.00
method	X-Ray Diffraction	resolution	2.25 Å
ligand	NH2	enzyme
Gene Ontology	Chain Function Process Component F, A, J, E, B, H, C, D, I, G
Primary reference	Structural determinants of selective alpha-conotoxin binding to a nicotinic acetylcholine receptor homolog AChBP., Ulens C, Hogg RC, Celie PH, Bertrand D, Tsetlin V, Smit AB, Sixma TK, Proc Natl Acad Sci U S A. 2006 Mar 7;103(10):3615-20. Epub 2006 Feb 27. PMID:16505382

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (369 Kb) [Save to disk] Biological Unit Coordinates (2c9t.pdb1.gz) 370 Kb LPC: Ligand-Protein Contacts for 2C9T CSU: Contacts of Structural Units for 2C9T Likely Quarternary Molecular Structure file(s) for 2C9T Structure Factors (1017 Kb) Retrieve 2C9T in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 2C9T from S2C, [Save to disk] Re-refined 2c9t structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

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Structure-derived information

Electron Density related parameters from EDS Electron Density Server, at Upsala Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 2C9T, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [2c9t_B] [2c9t_K] [2c9t_Q] [2c9t_I] [2c9t_J] [2c9t_T] [2c9t_C] [2c9t_O] [2c9t_A] [2c9t_R] [2c9t_M] [2c9t_E] [2c9t_D] [2c9t_H] [2c9t_F] [2c9t] [2c9t_P] [2c9t_G] [2c9t_S] SWISS-PROT database: [P50983] [Q8WSF8] Domain organization of [CA1_CONIM] [Q8WSF8_APLCA] by SWISSPFAM

Other resources with information on 2C9T

Community annotation for 2C9T at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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