1S4A		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, 5 Models	resolution
ligand	DNE, DNG, DNM, NLE, NLO	enzyme
Primary reference	Conformational and structural analysis of the equilibrium between single- and double-strand beta-helix of a D,L-alternating oligonorleucine., Navarro E, Fenude E, Celda B, Biopolymers 2004 Feb 5;73(2):229-41. PMID:14755580

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (38 Kb) [Save to disk] Biological Unit Coordinates (1s4a.pdb1.gz) 7 Kb LPC: Ligand-Protein Contacts for 1S4A CSU: Contacts of Structural Units for 1S4A Original NMR restraints for 1S4A from PDB Retrieve 1S4A in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1S4A from S2C, [Save to disk]

View 1S4A 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: [1s4a] [1s4a_A] [1s4a_B] SWISS-PROT database:

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