1SEG		date
authors
compound		source
symmetry		R_factor R_Free
crystal cell	length a length b length c angle alpha angle beta angle gamma
method	X-Ray Diffraction	resolution
ligand	NO3, PPI, SO4	enzyme
related structures	by homologous chain: 1PTX, 1SN4
Gene Ontology	Chain Function Process Component A toxin activity
Primary reference	Molecular basis of the high insecticidal potency of scorpion alpha-toxins., Karbat I, Frolow F, Froy O, Gilles N, Cohen L, Turkov M, Gordon D, Gurevitz M, J Biol Chem 2004 Jul 23;279(30):31679-86. Epub 2004 May 8. PMID:15133045

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (33 Kb) [Save to disk] Biological Unit Coordinates (1seg.pdb1.gz) 27 Kb LPC: Ligand-Protein Contacts for 1SEG CSU: Contacts of Structural Units for 1SEG Likely Quarternary Molecular Structure file(s) for 1SEG Structure Factors (135 Kb) Retrieve 1SEG in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1SEG from S2C, [Save to disk] Re-refined 1seg structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1SEG 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.

Structure-derived information

Dipole moment, from Dipole Server at Weizmann Institute

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [1seg] [1seg_A] SWISS-PROT database: [P01484] Belongs to the long (4c-c) scorpion toxin (l-st) superfamily according to TCDB. Domain found in 1SEG: [Knot1 ] by SMART

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