Abstract：
:Ribosomes translate genetic information encoded by mRNAs into protein chains with high fidelity. Truncated mRNAs lacking a stop codon will cause the synthesis of incomplete peptide chains and stall translating ribosomes. In bacteria, a ribonucleoprotein complex composed of tmRNA, a molecule that combines the functions of tRNAs and mRNAs, and small protein B (SmpB) rescues stalled ribosomes. The SmpB-tmRNA complex binds to the stalled ribosome, allowing translation to resume at a short internal tmRNA open reading frame that encodes a protein degradation tag. The aberrant protein is released when the ribosome reaches the stop codon at the end of the tmRNA open reading frame and the fused peptide tag targets it for degradation by cellular proteases. The recently determined NMR structures of SmpB, the crystal structure of the SmpB-tmRNA complex and the cryo-EM structure of the SmpB-tmRNA-EF-Tu-ribosome complex have provided first detailed insights into the intricate mechanisms involved in ribosome rescue.
journal_name
Curr Opin Struct Bioljournal_title
Current opinion in structural biologyauthors
Haebel PW,Gutmann S,Ban Ndoi
10.1016/j.sbi.2004.01.010subject
Has Abstractpub_date
2004-02-01 00:00:00pages
58-65issue
1eissn
0959-440Xissn
1879-033Xpii
S0959440X04000119journal_volume
14pub_type
杂志文章,评审abstract：:Purification from a source enriched in large macromolecular machines with basic cellular function is still the method of choice in many cases. Such complexes occur in sufficiently high copy numbers in the cell and can be isolated using classical protein purification protocols. Although advanced DNA recombinant technol...
journal_title：Current opinion in structural biology
pub_type： 杂志文章,评审
doi：10.1016/j.sbi.2013.01.005
更新日期：2013-06-01 00:00:00
abstract：:The torque-generating, direction-reversing switch proteins of the bacterial flagellar rotary motor form a cytoplasmic extension of the bacterial flagellar basal body. 10 A maps, obtained by electron cryomicroscopy, of the bacterial filament reveal an unusual alpha domain which forms the protein-subunit export channel....
journal_title：Current opinion in structural biology
pub_type： 杂志文章,评审
doi：10.1016/0959-440x(95)80074-3
更新日期：1995-04-01 00:00:00
abstract：:Messenger RNAs often contain structures in their 5'-untranslated region that serve to regulate or promote expression of their gene product. Recent structural studies have revealed that riboswitches, which bind a variety of small molecule metabolites, including purine bases, S-adenosylmethionine, amino acids and cofact...
journal_title：Current opinion in structural biology
pub_type： 杂志文章,评审
doi：10.1016/j.sbi.2006.05.001
更新日期：2006-06-01 00:00:00
abstract：:Viruses with an icosahedrally symmetric protein capsid and a membrane infect hosts from all three domains of life. Similar architectural principles are shared by different viral families, as exemplified by double-stranded DNA viruses such as PRD1 and STIV. During virus assembly, the membrane lipids are selectively acq...
journal_title：Current opinion in structural biology
pub_type： 杂志文章,评审
doi：10.1016/j.sbi.2007.03.005
更新日期：2007-04-01 00:00:00
abstract：:The modulation of enzyme function is a key regulatory feature of biological systems. The ability to engineer synthetic enzymes that can be controlled by any arbitrary signal would enable a wide array of sensing applications and therapeutics and provide us with powerful tools for the basic study of biology. Here severa...
journal_title：Current opinion in structural biology
pub_type： 杂志文章,评审
doi：10.1016/j.sbi.2009.04.007
更新日期：2009-08-01 00:00:00
abstract：:A selection of World Wide Web sites relevant to papers published in this issue of Current Opinion in Structural Biology. ...
journal_title：Current opinion in structural biology
pub_type：
doi：10.1016/s0959-440x(00)00182-2
更新日期：2001-04-01 00:00:00
abstract：:The anaphase-promoting complex/cyclosome (APC/C) is a large multi-subunit complex that functions as a RING domain E3 ubiquitin ligase to regulate transitions through the cell cycle, achieved by controlling the defined ubiquitin-dependent degradation of specific cell cycle regulators. APC/C activity and substrate selec...
journal_title：Current opinion in structural biology
pub_type： 杂志文章,评审
doi：10.1016/j.sbi.2019.11.010
更新日期：2020-04-01 00:00:00
abstract：:The bacterial cholesterol dependent cytolysins (CDCs) and membrane attack complex/perforin-like proteins (MACPF) represent two major branches of a large, exceptionally diverged superfamily. Most characterized CDC/MACPF proteins form large pores that function in immunity, venoms, and pathogenesis. Extensive structural,...
journal_title：Current opinion in structural biology
pub_type： 杂志文章,评审
doi：10.1016/j.sbi.2012.04.008
更新日期：2012-06-01 00:00:00
abstract：:Molecular flexibility over a wide time range is of central importance to the function of many proteins, both soluble and membrane. Revealing the modes of flexibility, their amplitudes, and time scales under physiological conditions is the challenge for spectroscopic methods, one of which is site-directed spin labeling...
journal_title：Current opinion in structural biology
pub_type： 杂志文章,评审
doi：10.1016/j.sbi.2013.06.008
更新日期：2013-10-01 00:00:00
abstract：:Recently, major advances have been made toward increasing our understanding of small ribozyme structure and function. The first general acid-base catalytic mechanism for a ribozyme has been defined. Shifted nucleotide pK(a) values have been found to be surprisingly frequent structural elements. Finally, the dynamic na...
journal_title：Current opinion in structural biology
pub_type： 杂志文章,评审
doi：10.1016/s0959-440x(00)00207-4
更新日期：2001-06-01 00:00:00
abstract：:In the past few years, structural biology has begun to reveal details of some of the receptors and associated interactions responsible for protein-mediated recognition events at the cell surface. Recent data span the fields of cytokine-receptor interactions, cell adhesion molecules and viral infection. ...
journal_title：Current opinion in structural biology
pub_type： 杂志文章,评审
doi：10.1016/0959-440x(95)80005-0
更新日期：1995-12-01 00:00:00
abstract：:The polycomb repressive complex 2 (PRC2) is a conserved multiprotein, repressive chromatin complex essential for development and maintenance of eukaryotic cellular identity. PRC2 comprises a trimeric core of SUZ12, EED and EZH1/2, which together with RBBP4/7 is sufficient to catalyse mono-methylation, di-methylation a...
journal_title：Current opinion in structural biology
pub_type： 杂志文章,评审
doi：10.1016/j.sbi.2020.10.017
更新日期：2020-11-21 00:00:00
abstract：:The first high-resolution structure of a P-type ATPase, that of the Ca(2+)-ATPase of skeletal muscle sarcoplasmic reticulum, was published in 2000. This structure has provided many clues to how the Ca(2+)-ATPase might work, but no complete answers. The Ca(2+)-ATPase structure reveals no clear pathway from the cytoplas...
journal_title：Current opinion in structural biology
pub_type： 杂志文章,评审
doi：10.1016/s0959-440x(02)00360-3
更新日期：2002-08-01 00:00:00
abstract：:The past years have seen tremendous progress towards understanding how arrestins recognize phosphorylated G protein-coupled receptors (GPCRs). Two arrestin crystal structures, one of a pre-activated splice variant and one bound to a GPCR phosphopeptide, provided insights into the conformational changes upon phosphate ...
journal_title：Current opinion in structural biology
pub_type： 杂志文章,评审
doi：10.1016/j.sbi.2014.07.006
更新日期：2014-12-01 00:00:00
abstract：:Demand for novel GPCR modulators is increasing as the association between the GPCR signaling pathway and numerous diseases such as cancers, psychological and metabolic disorders continues to be established. In silico structure-based drug design (SBDD) offers an outlet where researchers could exploit the accumulating s...
journal_title：Current opinion in structural biology
pub_type： 杂志文章,评审
doi：10.1016/j.sbi.2019.03.015
更新日期：2019-04-01 00:00:00
abstract：:Optogenetic dimerizers are modular domains that can be utilized in a variety of versatile ways to modulate cellular biochemistry. Because of their modularity, many applications using these tools can be easily transferred to new targets without extensive engineering. While a number of photodimerizer systems are current...
journal_title：Current opinion in structural biology
pub_type： 杂志文章,评审
doi：10.1016/j.sbi.2019.01.021
更新日期：2019-08-01 00:00:00
abstract：:The past twelve months have seen a renewal of interest in the therapeutic potential of members of the tumour necrosis factor receptor family and their cytokine ligands. This biomedical interest has spawned a number of structural studies, which have significantly deepened our understanding of the molecular basis for th...
journal_title：Current opinion in structural biology
pub_type： 杂志文章,评审
doi：10.1016/s0959-440x(00)00149-4
更新日期：2000-12-01 00:00:00
abstract：:The encounter complex of two proteins is a dynamic intermediate state that guides proteins to their binding site, thus enhancing the rate of complex formation. It is particularly useful for complexes that must balance a biological requirement for high turnover with the need for specific binding, such as electron trans...
journal_title：Current opinion in structural biology
pub_type： 杂志文章,评审
doi：10.1016/j.sbi.2013.07.009
更新日期：2013-12-01 00:00:00
abstract：:Since its debut in the mid 1970s, electron crystallography has been a valuable alternative in the structure determination of biological macromolecules. Its reliance on single-layered or double-layered two-dimensionally ordered arrays and the ability to obtain structural information from small and disordered crystals m...
journal_title：Current opinion in structural biology
pub_type： 杂志文章,评审
doi：10.1016/j.sbi.2012.03.006
更新日期：2012-08-01 00:00:00
abstract：:The ISWI family of ATP-dependent chromatin remodelers regulates transcription of coding and noncoding RNA by mobilizing nucleosomes and controlling the length of linker DNA separating nucleosomes (spacing). Nucleosome movement is tightly coupled to the DNA translocation activity of the helicase domain in the catalytic...
journal_title：Current opinion in structural biology
pub_type： 杂志文章,评审
doi：10.1016/j.sbi.2014.01.010
更新日期：2014-02-01 00:00:00
abstract：:Mucin-type O-glycosylation is a post-translational modification (PTM) that is predicted to occur in more than the 80% of the proteins that pass through the Golgi apparatus. This PTM is initiated by a family of polypeptide GalNAc-transferases (GalNAc-Ts) that modify Ser and Thr residues of proteins through the addition...
journal_title：Current opinion in structural biology
pub_type： 杂志文章,评审
doi：10.1016/j.sbi.2018.12.007
更新日期：2019-06-01 00:00:00
abstract：:Polyketide synthases (PKSs) form a large family of multifunctional proteins involved in the biosynthesis of diverse classes of natural products. Architecturally at least three different types of PKSs have been discovered in the microbial world and recent years have revealed tremendous versatility of PKSs, both in term...
journal_title：Current opinion in structural biology
pub_type： 杂志文章,评审
doi：10.1016/j.sbi.2007.08.021
更新日期：2007-12-01 00:00:00
abstract：:Investigating the in vitro refolding of proteins that naturally reside in biological membranes is a notoriously difficult task. Biophysical studies on model systems are beginning to provide a sound physical basis for membrane protein folding that should help to alleviate this problem. Highlights of these studies inclu...
journal_title：Current opinion in structural biology
pub_type： 杂志文章,评审
doi：10.1016/s0959-440x(99)80015-3
更新日期：1999-02-01 00:00:00
abstract：:Many proteins are composed of protein domains, functional units of common descent. Multidomain forms are common in all eukaryotes making up more than half of the proteome and the evolution of novel domain architecture has been accelerated in metazoans. It is also becoming increasingly clear that alternative splicing i...
journal_title：Current opinion in structural biology
pub_type： 杂志文章,评审
doi：10.1016/j.sbi.2013.02.013
更新日期：2013-06-01 00:00:00
abstract：:Among the crystal structures of lectins determined recently, three--snowdrop lectin, jacalin and amaranthin--represent new lectin families. Their polypeptide folds share remarkably similar features and consist exclusively of beta structure. Autonomously folded beta-sheet subdomains, inter-related by a pseudothreefold ...
journal_title：Current opinion in structural biology
pub_type： 杂志文章,评审
doi：10.1016/s0959-440x(97)80071-1
更新日期：1997-10-01 00:00:00
abstract：:This review focuses on recent structural insights into regulation and nucleic acid binding of Superfamily 2 (SF2)-type helicases as they relate to chromatin remodelers. We review structural features of the Chd1 chromatin remodeler regarding regulation of the ATPase motor, and discuss related strategies observed for ot...
journal_title：Current opinion in structural biology
pub_type： 杂志文章,评审
doi：10.1016/j.sbi.2011.09.003
更新日期：2011-12-01 00:00:00
abstract：:The postsynaptic density (PSD) is a protein-rich assembly below the postsynaptic membrane, formed of large scaffolding proteins. These proteins carry a combination of protein interaction domains, which may interact with several alternative partners; the structure of the protein assembly can be regulated in an activity...
journal_title：Current opinion in structural biology
pub_type： 杂志文章,评审
doi：10.1016/j.sbi.2019.01.007
更新日期：2019-02-01 00:00:00
abstract：:The three-dimensional structures of several biotin-binding proteins are now known, giving insights into the molecular architecture of the binding sites for biotin. In combination with biochemical and computational approaches, these structural insights provide the basis for our present understanding of biotin-protein i...
journal_title：Current opinion in structural biology
pub_type： 杂志文章,评审
doi：10.1016/s0959-440x(96)80010-8
更新日期：1996-12-01 00:00:00
abstract：:Glycosylation is a common post-translational protein modification, in which glycans are built onto proteins through the sequential addition of monosaccharide units, in reactions catalysed by glycosyltransferases. Glycosylation influences the physicochemical and biological properties of proteins, with subsequent effect...
journal_title：Current opinion in structural biology
pub_type： 杂志文章,评审
doi：10.1016/j.sbi.2016.08.007
更新日期：2016-10-01 00:00:00
abstract：:The accelerated elucidation of three-dimensional structures of protein complexes, both natural and designed, is providing new examples of large supramolecular assemblies with intriguing shapes. Those with high symmetry - based on the geometries of the Platonic solids - are particularly notable as their innately closed...
journal_title：Current opinion in structural biology
pub_type： 杂志文章,评审
doi：10.1016/j.sbi.2019.03.008
更新日期：2019-04-01 00:00:00
