256B		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
note	256B is a representative structure
related structures	by homologous chain: 1M6T
Gene Ontology	Chain Function Process Component A, B
Primary reference	Improvement of the 2.5 A resolution model of cytochrome b562 by redetermining the primary structure and using molecular graphics., Lederer F, Glatigny A, Bethge PH, Bellamy HD, Matthew FS, J Mol Biol. 1981 Jun 5;148(4):427-48. PMID:7031264

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (43 Kb) [Save to disk] Biological Unit Coordinates (256b.pdb1.gz) 20 Kb Biological Unit Coordinates (256b.pdb2.gz) 20 Kb CSU: Contacts of Structural Units for 256B Likely Quarternary Molecular Structure file(s) for 256B Structure Factors (431 Kb) Retrieve 256B in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 256B from S2C, [Save to disk] Re-refined 256b structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 256B 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: [256b] [256b_A] [256b_B] SWISS-PROT database: [P0ABE7]

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