1T7E	Toxin	date	May 09, 2004
title	Crystal Structure Of Mutant Pro9ser Of Scorpion Alpha-Like N Bmk M1 From Buthus Martensii Karsch
authors	Y.Xiang, R.J.Guan, X.L.He, C.G.Wang, M.Wang, Y.Zhang, E.J.Sundberg
compound		source
Molecule: Alpha-Like Neurotoxin Bmk-I Chain: A Synonym: Bmk I, Bmki, Bmk1, Bmk-M1, Bmk M1, Bmkm1 Engineered: Yes Mutation: Yes		Organism_scientific: Mesobuthus Martensii Organism_common: Chinese Scorpion Organism_taxid: 34649 Gene: Bmk M1 Expression_system: Saccharomyces Cerevisiae Expression_system_common: Baker'S Yeast Expression_system_taxid: 4932 Expression_system_strain: S-78 Expression_system_vector_type: Plasmid Expression_system_plasmid: Pvt 102u-Alpha
symmetry	Space Group: P 32 2 1	R_factor 0.192 R_Free 0.216
crystal cell	length a length b length c angle alpha angle beta angle gamma 46.907 46.907 53.748 90.00 90.00 120.00
method	X-Ray Diffraction	resolution	1.40 Å
ligand	PO4	enzyme
related structures	by homologous chain: 1KV0, 1T7A
Gene Ontology	Chain Function Process Component A toxin activity
Primary reference	Structural mechanism governing cis and trans isomeric states and an intramolecular switch for cis/trans isomerization of a non-proline peptide bond observed in crystal structures of scorpion toxins., Guan RJ, Xiang Y, He XL, Wang CG, Wang M, Zhang Y, Sundberg EJ, Wang DC, J Mol Biol 2004 Aug 27;341(5):1189-204. PMID:15321715

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (18 Kb) [Save to disk] Biological Unit Coordinates (1t7e.pdb1.gz) 13 Kb LPC: Ligand-Protein Contacts for 1T7E CSU: Contacts of Structural Units for 1T7E Likely Quarternary Molecular Structure file(s) for 1T7E Structure Factors (89 Kb) Retrieve 1T7E in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1T7E from S2C, [Save to disk] Re-refined 1t7e structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1T7E in 3D

Proteopedia, because life has more than 2D. On Jmol, a nice Rasmol like molecule viewer. This is good for easiest viewing of basic structure. On FirstGlance, an excellent tool for a guided tour on the structure components, by E. Martz.

Visual 3D analysis of 1T7E

Ramachandran plot from PDBSum

Structure-derived information

Conformational Epitope Prediction for 1T7E from the CEP Server. Electron Density related parameters from EDS Electron Density Server, at Upsala Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 1T7E, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1t7ea_, region A [Jmol] [rasmolscript] [script source]

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [1t7e] [1t7e_A] SWISS-PROT database: [P45697] Belongs to the long (4c-c) scorpion toxin (l-st) superfamily according to TCDB. Domain organization of [SCX1_MESMA] by SWISSPFAM Domain found in 1T7E: [Knot1 ] by SMART

Other resources with information on 1T7E

Community annotation for 1T7E at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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