3S4S		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	GOL	enzyme
Gene Ontology	Chain Function Process Component A, D B, E G, H
Primary reference	Affinity maturation of human CD4 by yeast surface display and crystal structure of a CD4-HLA-DR1 complex., Wang XX, Li Y, Yin Y, Mo M, Wang Q, Gao W, Wang L, Mariuzza RA, Proc Natl Acad Sci U S A. 2011 Sep 7. PMID:21900604

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (183 Kb) [Save to disk] Biological Unit Coordinates (3s4s.pdb1.gz) 91 Kb Biological Unit Coordinates (3s4s.pdb2.gz) 90 Kb LPC: Ligand-Protein Contacts for 3S4S CSU: Contacts of Structural Units for 3S4S Structure Factors (489 Kb) Retrieve 3S4S in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 3S4S from S2C, [Save to disk] Re-refined 3s4s structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 3S4S 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: [3s4s] [3s4s_A] [3s4s_B] [3s4s_C] [3s4s_D] [3s4s_E] [3s4s_F] [3s4s_G] [3s4s_H] SWISS-PROT database: Domains found in 3S4S: [IG_like] [IGc1] [IGv] [MHC_II_alpha] [MHC_II_beta ] by SMART

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