1B4K		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	MG, SHF, SO4	enzyme
related structures	by homologous chain: 1GZG, 1W56
Gene Ontology	Chain Function Process Component A, B
Primary reference	High resolution crystal structure of a Mg2+-dependent porphobilinogen synthase., Frankenberg N, Erskine PT, Cooper JB, Shoolingin-Jordan PM, Jahn D, Heinz DW, J Mol Biol 1999 Jun 11;289(3):591-602. PMID:10356331

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (116 Kb) [Save to disk] Biological Unit Coordinates (1b4k.pdb1.gz) 436 Kb LPC: Ligand-Protein Contacts for 1B4K CSU: Contacts of Structural Units for 1B4K Likely Quarternary Molecular Structure file(s) for 1B4K Structure Factors (609 Kb) Retrieve 1B4K in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1B4K from S2C, [Save to disk] Re-refined 1b4k structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1B4K 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: [1b4k] [1b4k_A] [1b4k_B] SWISS-PROT database: [Q59643] Domain found in 1B4K: [ALAD ] by SMART

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