1N4D		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	MSE	enzyme
related structures	by homologous chain: 1N4A
Gene Ontology	Chain Function Process Component A, B
Primary reference	Crystal structures of the BtuF periplasmic-binding protein for vitamin B12 suggest a functionally important reduction in protein mobility upon ligand binding., Karpowich NK, Huang HH, Smith PC, Hunt JF, J Biol Chem 2003 Mar 7;278(10):8429-34. PMID:12468528

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (79 Kb) [Save to disk] Biological Unit Coordinates (1n4d.pdb1.gz) 40 Kb Biological Unit Coordinates (1n4d.pdb2.gz) 37 Kb LPC: Ligand-Protein Contacts for 1N4D CSU: Contacts of Structural Units for 1N4D Likely Quarternary Molecular Structure file(s) for 1N4D Structure Factors (105 Kb) Retrieve 1N4D in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1N4D from S2C, [Save to disk] Re-refined 1n4d structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1N4D 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: [1n4d] [1n4d_A] [1n4d_B] SWISS-PROT database: [P37028]

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