3CHB		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	BGC, GAL, GLC, MES, NGA, SIA, UNX	enzyme
note	3CHB is a representative structure
related structures	by homologous chain: 1JR0
Gene Ontology	Chain Function Process Component H, G, E, D, F host cell surface binding toxin activity
Primary reference	The 1.25 A resolution refinement of the cholera toxin B-pentamer: evidence of peptide backbone strain at the receptor-binding site., Merritt EA, Kuhn P, Sarfaty S, Erbe JL, Holmes RK, Hol WG, J Mol Biol 1998 Oct 9;282(5):1043-59. PMID:9753553

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (212 Kb) [Save to disk] Biological Unit Coordinates (3chb.pdb1.gz) 205 Kb LPC: Ligand-Protein Contacts for 3CHB CSU: Contacts of Structural Units for 3CHB Likely Quarternary Molecular Structure file(s) for 3CHB Structure Factors (2193 Kb) Retrieve 3CHB in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 3CHB from S2C, [Save to disk] Re-refined 3chb structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 3CHB 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: [3chb] [3chb_D] [3chb_E] [3chb_F] [3chb_G] [3chb_H] SWISS-PROT database: [P01556]

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