3SM4		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	CL, MG, PO4	enzyme
note	3SM4 is a representative structure
Gene Ontology	Chain Function Process Component C, B, A nuclease activity exonuclease activity
Primary reference	Crystal structures of {lambda} exonuclease in complex with DNA suggest an electrostatic ratchet mechanism for processivity., Zhang J, McCabe KA, Bell CE, Proc Natl Acad Sci U S A. 2011 Jul 5. PMID:21730170

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (258 Kb) [Save to disk] Biological Unit Coordinates (3sm4.pdb1.gz) 249 Kb LPC: Ligand-Protein Contacts for 3SM4 CSU: Contacts of Structural Units for 3SM4 Structure Factors (966 Kb) Retrieve 3SM4 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 3SM4 from S2C, [Save to disk] Re-refined 3sm4 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 3SM4 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: [3sm4] [3sm4_A] [3sm4_B] [3sm4_C] [3sm4_D] [3sm4_E] SWISS-PROT database:

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