Co-translational mechanisms of protein maturation.

abstract：:Directed evolution is widely used to improve enzymes, particularly for industrial biocatalytic processes. Molecular biology advances present many new strategies for directed evolution. Commonly used techniques have led to many successful examples of enzyme improvement, yet there is still a need to improve both the eff...

journal_title：Current opinion in structural biology

authors： Dalby PA

更新日期：2011-08-01 00:00:00

abstract：:Crystallographic studies of a number of aminoacyl-tRNA synthetases and their complexes with ATP, amino acid and cognate tRNA are leading to an increasingly detailed picture of how these sophisticated enzymes function. Within the two distinct structural classes of ten synthetases, many common features are apparent, alt...

journal_title：Current opinion in structural biology

authors： Cusack S

更新日期：1997-12-01 00:00:00

abstract：:Advances in the crystallization of biological macromolecules have come not only from the application of biochemical, molecular biological and immunological principles and techniques, but also from continued efforts to understand the crystallization process. Developments in crystallization methodologies, protocols, and...

journal_title：Current opinion in structural biology

authors： Gilliland GL,Ladner JE

更新日期：1996-10-01 00:00:00

abstract：:Specific, noncovalent binding of biomolecules can only be understood by considering structural, thermodynamic, and kinetic issues. The theoretical foundations for such analyses have been clarified in the past year. Computational techniques for both particle-based and continuum models continue to improve and to yield u...

journal_title：Current opinion in structural biology

authors： McCammon JA

更新日期：1998-04-01 00:00:00

abstract：:Newly synthesized proteins leave the ribosome through a narrow tunnel in the large subunit. During ongoing synthesis, nascent protein chains are particularly sensitive to aggregation and degradation because they emerge from the ribosome in an unfolded state. In bacteria, the first protein to interact with nascent chai...

journal_title：Current opinion in structural biology

authors： Maier T,Ferbitz L,Deuerling E,Ban N

更新日期：2005-04-01 00:00:00

abstract：:Computational methods play an important role at all stages of the process of determining protein-protein interactions. They are used to predict potential interactions, to validate the results of high-throughput interaction screens and to analyze the protein networks inferred from interaction databases. ...

journal_title：Current opinion in structural biology

authors： Salwinski L,Eisenberg D

更新日期：2003-06-01 00:00:00

abstract：:Gamma-tubulin is as ubiquitous in eukaryotes as alpha- and beta-tubulin. Rather than forming part of the microtubule wall, however, gamma-tubulin is involved in microtubule nucleation. Although gamma-tubulin concentrates at microtubule-organizing centers, it also exists in a cytoplasmic complex whose size and complexi...

journal_title：Current opinion in structural biology

authors： Wiese C,Zheng Y

更新日期：1999-04-01 00:00:00

abstract：:Malaria remains the world's most prevalent human parasitic disease. Because of the rapid spread of drug resistance in parasites, there is an urgent need to identify diverse new drug targets. One group of proteases that are emerging as targets for novel antimalarials are the metalloaminopeptidases. These enzymes cataly...

journal_title：Current opinion in structural biology

authors： McGowan S

更新日期：2013-12-01 00:00:00

abstract：:The amide bond with its planarity and lack of chemical reactivity is at the heart of protein structure. Chemical methylation of amides is known but was considered too harsh to be accessible to biology. Until last year there was no protein structure in the data bank with an enzymatically methylated amide. The discovery...

journal_title：Current opinion in structural biology

authors： Song H,Naismith JH

更新日期：2020-12-01 00:00:00

abstract：:2-Oxoacid:ferredoxin oxidoreductases (OFORs) are essential enzymes in microbial one-carbon metabolism. They use thiamine pyrophosphate to reversibly cleave carbon-carbon bonds, generating low potential (∼-500mV) electrons. Crystallographic analysis of a recently discovered OFOR, an oxalate oxidoreductase (OOR), has pr...

journal_title：Current opinion in structural biology

authors： Gibson MI,Chen PY,Drennan CL

更新日期：2016-12-01 00:00:00

abstract：:Intron splicing is a fundamental biological process whereby noncoding sequences are removed from precursor RNAs. Recent work has provided new insights into the structural features and reaction mechanisms of two introns that catalyze their own splicing from precursor RNA: the group I and II introns. In addition, there ...

journal_title：Current opinion in structural biology

authors： Toor N,Keating KS,Pyle AM

更新日期：2009-06-01 00:00:00

abstract：:Recent advances in atomic force microscopy (AFM) imaging of nucleic acids include the visualization of DNA and RNA incorporated into devices and patterns, and into structures based on their sequences or sequence recognition. AFM imaging of nuclear structures has contributed to advances in telomere research and to our ...

journal_title：Current opinion in structural biology

authors： Hansma HG,Kasuya K,Oroudjev E

更新日期：2004-06-01 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

authors： Huiskonen JT,Butcher SJ

更新日期：2007-04-01 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

authors： Wright CS

更新日期：1997-10-01 00:00:00

abstract：:Ring-shaped nucleic acid translocases and helicases catalyze the directed and processive movement of nucleic acid strands to support essential transactions such as replication, transcription, and chromosome partitioning. Assembled typically as hexamers, ring helicase/translocase systems use coordinated cycles of nucle...

journal_title：Current opinion in structural biology

authors： O'Shea VL,Berger JM

更新日期：2014-04-01 00:00:00

abstract：:Progress in the synthesis, purification and crystallization of RNA has resulted in the determination of several X-ray crystal structures of RNA molecules over the past few years. Methods proven and under development will lead to future structure determinations and shed light on the structural basis for RNA's many func...

journal_title：Current opinion in structural biology

authors： Lietzke SE,Barnes CL,Kundrot CE

更新日期：1995-10-01 00:00:00

abstract：:Congenital disorders of glycosylation (CDG) are a group of diseases that affect glycoprotein biogenesis. Eighteen different types of CDG have been defined genetically. They result from deficiencies in either the biosynthesis of oligosaccharide precursors or specific steps of N-glycan assembly, resulting in the absence...

journal_title：Current opinion in structural biology

authors： Freeze HH,Aebi M

更新日期：2005-10-01 00:00:00

abstract：:The radical intermediates generated during the catalytic cycles of adenosylcobalamin-dependent enzymes occur in pairs. The positions of radicals residing on the cofactor, substrate or protein, relative to the position of the low-spin Co(2+) from the cob(II)alamin intermediate, can be extracted from electron paramagnet...

journal_title：Current opinion in structural biology

authors： Reed GH,Mansoorabadi SO

更新日期：2003-12-01 00:00:00

abstract：:Cells are equipped with cosolvents that modulate protein folding and aggregation to withstand water stress. The effect of cosolvents on the aggregation rates depends on whether the polypeptide sequence is an intrinsically disordered protein (IDP) or can fold into a specific native structure. Cosolvents, which act as d...

journal_title：Current opinion in structural biology

authors： Reddy G,Muttathukattil AN,Mondal B

更新日期：2020-02-01 00:00:00

abstract：:Recent advances in algorithmic techniques and statistics of sequence alignment have helped to make near-optimal alignments an important tool in the delineation of biologically valid alignments. Near-optimal alignments serve to judge the reliability of portions of a sequence alignment. The statistical assessment of sub...

journal_title：Current opinion in structural biology

authors： Vingron M

更新日期：1996-06-01 00:00:00

abstract：:Structures of three different pleckstrin homology domains have been determined within the past year. They have a common core consisting of a seven-stranded and strongly bent beta-sheet and a C-terminal alpha-helix that packs against the beta-sheet. Phosphatidylinositol 4,5-bisphosphate and related compounds specifical...

journal_title：Current opinion in structural biology

authors： Saraste M,Hyvönen M

更新日期：1995-06-01 00:00:00

abstract：:Biological macromolecules have evolved over billions of years to function inside cells, so it is not surprising that researchers studying the properties of such molecules, either in extracts or in purified form, take care to control factors that reflect the intracellular environment, such as pH, ionic strength and com...

journal_title：Current opinion in structural biology

authors： Ellis RJ

更新日期：2001-02-01 00:00:00

abstract：:Recent studies have revealed a correlation between amino acid sequences around glycosylation sites in proteoglycans and the ability of cells to initiate and process glycosaminoglycan chains. Initiation depends on Ser-Gly/Ala dipeptides that have one or more acidic amino acids in close proximity. The formation of hepar...

journal_title：Current opinion in structural biology

authors： Esko JD,Zhang L

更新日期：1996-10-01 00:00:00

abstract：:Mechanisms for making and breaking the heme b cofactor (heme) are more diverse than previously expected. Biosynthetic pathways have diverged at least twice along taxonomic lines, reflecting differences in membrane organization and O2 utilization among major groups of organisms. At least three families of heme degradas...

journal_title：Current opinion in structural biology

authors： Celis AI,DuBois JL

更新日期：2019-12-01 00:00:00

abstract：:The folding and assembly of myosin motor proteins is essential for most movement processes at the cellular, but also at the organism level. Importantly, myosins, which represent a very diverse family of proteins, require the activity of general and specialized folding factors to develop their full motor function. The ...

journal_title：Current opinion in structural biology

authors： Hellerschmied D,Clausen T

更新日期：2014-04-01 00:00:00

abstract：:High-throughput interaction discovery initiatives have revealed the existence of hundreds of multiprotein complexes whose functions are regulated through thousands of protein-protein interactions (PPIs). However, the structural details of these interactions, often necessary to understand their function, are only avail...

journal_title：Current opinion in structural biology

authors： Stein A,Mosca R,Aloy P

更新日期：2011-04-01 00:00:00

abstract：:The X-ray structures of two prokaryotic pentameric ligand-gated ion channels have recently provided detailed insight into this important family of neurotransmitter receptors. These prokaryotic homologs share the overall architecture of their eukaryotic counterparts with conservation in functionally important residues....

journal_title：Current opinion in structural biology

authors： Hilf RJ,Dutzler R

更新日期：2009-08-01 00:00:00

abstract：:A novel ligand-binding domain, named the 'ACT domain', was recently identified by a PSI-BLAST search. The archetypical ACT domain is the C-terminal regulatory domain of 3-phosphoglycerate dehydrogenase (3PGDH), which folds with a ferredoxin-like betaalphabetabetaalphabeta topology. A pair of ACT domains form an eight-...

journal_title：Current opinion in structural biology

authors： Chipman DM,Shaanan B

更新日期：2001-12-01 00:00:00

abstract：:The computational evaluation of protein-protein interactions will play an important role in organising the wealth of data being generated by high-throughput initiatives. Here we discuss future applications, report recent developments and identify areas requiring further investigation. Many functions have been develope...

journal_title：Current opinion in structural biology

authors： Moal IH,Moretti R,Baker D,Fernández-Recio J

更新日期：2013-12-01 00:00:00

abstract：:ATP-binding cassette (ABC)-type ATPases are chemo-mechanical engines for diverse biological pathways. ABC ATPase domains act not only in ABC transporters but also in DNA mismatch, nucleotide excision and double-strand break repair enzymes, as well as in chromosome segregation. Atomic-resolution crystal structures sugg...

journal_title：Current opinion in structural biology

authors： Hopfner KP,Tainer JA

更新日期：2003-04-01 00:00:00