1SA3		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	NA	enzyme
Gene Ontology	Chain Function Process Component B, A nuclease activity endonuclease activity
Primary reference	An Asymmetric Complex of Restriction Endonuclease MspI on Its Palindromic DNA Recognition Site., Xu QS, Kucera RB, Roberts RJ, Guo HC, Structure (Camb) 2004 Sep;12(9):1741-7. PMID:15341737

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (109 Kb) [Save to disk] Biological Unit Coordinates (1sa3.pdb1.gz) 54 Kb Biological Unit Coordinates (1sa3.pdb2.gz) 52 Kb LPC: Ligand-Protein Contacts for 1SA3 CSU: Contacts of Structural Units for 1SA3 Likely Quarternary Molecular Structure file(s) for 1SA3 Structure Factors (421 Kb) Retrieve 1SA3 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1SA3 from S2C, [Save to disk] Re-refined 1sa3 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1SA3 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: [1sa3] [1sa3_A] [1sa3_B] [1sa3_C] [1sa3_D] [1sa3_E] [1sa3_F] SWISS-PROT database: [P11405]

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