Characterization of archaeal Sm proteins fromSulfolobus solfataricus: structural and functional analysis
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چکیده
منابع مشابه
Structural and functional analysis of the archaeal endonuclease Nob1
Eukaryotic ribosome biogenesis requires the concerted action of numerous ribosome assembly factors, for most of which structural and functional information is currently lacking. Nob1, which can be identified in eukaryotes and archaea, is required for the final maturation of the small subunit ribosomal RNA in yeast by catalyzing cleavage at site D after export of the preribosomal subunit into th...
متن کاملfunctional study of p0 proteins of two cereal yellow dwarf viruses (cydv-rpv and cydv-rps) and identification of their cellular partner
نقش سرکوبگری پروتئین p0 در دو پولروویروس کوتولگی زردی غلات cydv-rpv) و (cydv-rps، متفاوت در شدت بیماریزایی، مورد مطالعه قرار گرفت. نتایج نشان داد که هر دو پروتئین p0 p0cy-rpv) و (p0cy-rps قادر به سرکوب خاموشی آر ان ای ایجاد شده توسط ترادف های تراژن سنس و تکرار معکوس در n. benthamiana هستند. نشان داده شد که هر دو پروتئین p0 می توانند تخریب پروتئین argonaute-1 را تسهیل کنند. علاوه بر این، تمایل م...
Structural and functional studies of archaeal viruses.
Viruses populate virtually every ecosystem on the planet, including the extreme acidic, thermal, and saline environments where archaeal organisms can dominate. For example, recent studies have identified crenarchaeal viruses in the hot springs of Yellowstone National Park and other high temperature environments worldwide. These viruses are often morphologically and genetically unique, with geno...
متن کاملStructural and functional characterization of human Iba proteins.
Iba2 is a homolog of ionized calcium-binding adapter molecule 1 (Iba1), a 17-kDa protein that binds and cross-links filamentous actin (F-actin) and localizes to membrane ruffles and phagocytic cups. Here, we present the crystal structure of human Iba2 and its homodimerization properties, F-actin cross-linking activity, cellular localization and recruitment upon bacterial invasion in comparison ...
متن کاملArchaeal and eukaryotic homologs of Hfq A structural and evolutionary perspective on Sm function
A history of the Sm/Lsm-SmAP-Hfq family. Human Sm proteins were discovered over 30 y ago as a group of small antigens involved in the autoimmune disease systemic lupus erythematosus. The ≈80-residue proteins were identified in association with ribonucleoprotein (RNP) complexes from eukaryotic cellular extracts. Other early work uncovered vital roles for Sm proteins in forming the cores of the u...
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ژورنال
عنوان ژورنال: Acta Crystallographica Section A Foundations of Crystallography
سال: 2004
ISSN: 0108-7673
DOI: 10.1107/s0108767304097405