INVESTIGADORES
PALATNIK Javier Fernando
artículos
Título:
Second double-stranded RNA binding domain of dicer-like ribonuclease 1: structural and biochemical characterization.
Autor/es:
BURDISSO, P; SUAREZ, IP; BOLOGNA, NG; PALATNIK, J.F.; BERSCH, B; RASIA, RM
Revista:
BIOCHEMISTRY
Editorial:
AMER CHEMICAL SOC
Referencias:
Lugar: Washington; Año: 2012 p. 10159 - 10166
ISSN:
0006-2960
Resumen:
Dicer-like ribonuclease III enzymes are involved in different paths
related to RNA silencing in plants. Little is known about the structural
aspects of these processes. Here we present a structural
characterization of the second double-stranded RNA binding domain
(dsRBD) of DCL1, which is presumed to participate in pri-micro-RNA
recognition and subcellular localization of this protein. We determined
the solution structure and found that it has a canonical fold but bears
some variation with respect to other homologous domains. We also found
that this domain binds both double-stranded RNA and double-stranded DNA,
in contrast to most dsRBDs. Our characterization shows that this domain
likely has functions other than substrate recognition and binding.