Crystal structure of the RAG1 dimerization domain reveals multiple zinc-binding motifs including a novel zinc binuclear cluster.

Autor: Bellon SF; Department of Molecular Biophysics and Biochemistry, Yale University, New Haven, Connecticut 06520-8114, USA., Rodgers KK, Schatz DG, Coleman JE, Steitz TA
Jazyk: angličtina
Zdroj: Nature structural biology [Nat Struct Biol] 1997 Jul; Vol. 4 (7), pp. 586-91.
DOI: 10.1038/nsb0797-586
Abstrakt: The crystal structure of the dimerization domain of the V(D)J recombination-activating protein, RAG1, was solved using zinc anomalous scattering. The structure reveals an unusual combination of multi-class zinc-binding motifs, including a zinc RING finger and a C2H2 zinc finger, that together from a single structural domain. The domain also contains a unique zinc binuclear cluster in place of a normally mononuclear zinc site in the RING finger. Together, four zinc ions help organize the entire domain, including the two helices that form the dimer interface.
Databáze: MEDLINE