Abstract:
:Intrinsically disordered proteins (IDPs) represent an emerging class of proteins (or domains) that are characterized by a lack of ordered secondary and tertiary structure. This group of proteins has recently attracted tremendous interest primarily because of a unique feature: they can bind to different targets due to their structural plasticity, and thus fulfill diverse functions. The inhibitory gamma-subunit (PDEgamma) of retinal PDE6 is an intriguing IDP, of which unique protein properties are being uncovered. PDEgamma critically regulates the turn on as well as the turn off of visual signaling through alternate interactions with the PDE6 catalytic core, transducin, and the regulator of G protein signaling RGS9-1. The intrinsic disorder of PDEgamma does not compromise, but rather, optimizes its functionality. PDEgamma "curls up" when free in solution but "stretches out" when binding with the PDE6 catalytic core. Conformational changes of PDEgamma also likely occur in its C-terminal PDE6-binding region upon interacting with transducin during PDE6 activation. Growing evidence shows that PDEgamma is also a player in non-phototransduction pathways, suggesting additional protein targets. Thus, PDEgamma is highly likely to be adaptive in its structure and function, hence a "chameleon".
journal_name
Curr Protein Pept Scijournal_title
Current protein & peptide scienceauthors
Guo LW,Ruoho AEdoi
10.2174/138920308786733930subject
Has Abstractpub_date
2008-12-01 00:00:00pages
611-25issue
6eissn
1389-2037issn
1875-5550journal_volume
9pub_type
杂志文章,评审abstract::Defensins are a family of peptides with potent antimicrobial activity. They are found in various organisms. The intent of this article is to review the structures and mechanisms of antimicrobial actions of defensins produced by different organisms including humans, other mammals, birds, reptiles, fish, mollusks, arthr...
journal_title:Current protein & peptide science
pub_type: 杂志文章,评审
doi:10.2174/138920307782411446
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journal_title:Current protein & peptide science
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journal_title:Current protein & peptide science
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journal_title:Current protein & peptide science
pub_type: 杂志文章,评审
doi:10.2174/1389203023380512
更新日期:2002-10-01 00:00:00
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journal_title:Current protein & peptide science
pub_type: 杂志文章,评审
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更新日期:2001-06-01 00:00:00
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journal_title:Current protein & peptide science
pub_type: 杂志文章,评审
doi:10.2174/1389203715666140228153801
更新日期:2014-01-01 00:00:00
abstract::The cytolysin is a novel, two-peptide lytic toxin produced by some strains of Enterococcus faecalis. It is toxic in animal models of enterococcal infection, and associated with acutely terminal outcome in human infection. The cytolysin exerts activity against a broad spectrum of cell types including a wide range of gr...
journal_title:Current protein & peptide science
pub_type: 杂志文章,评审
doi:10.2174/1389203053027557
更新日期:2005-02-01 00:00:00
abstract::Many naturally occurring bioactive peptides bind to biological membranes. Studying and elucidating the mode of interaction is often an essential step to understand their molecular and biological functions. To obtain the complete orientation and immersion depth of such compounds in the membrane or a membrane-mimetic sy...
journal_title:Current protein & peptide science
pub_type: 杂志文章,评审
doi:10.2174/138920312800785049
更新日期:2012-05-01 00:00:00
abstract::Identifying the interactions between drugs and target proteins is a key step in drug discovery. This not only aids to understand the disease mechanism, but also helps to identify unexpected therapeutic activity or adverse side effects of drugs. Hence, drug-target interaction prediction becomes an essential tool in the...
journal_title:Current protein & peptide science
pub_type: 杂志文章,评审
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更新日期:2018-01-01 00:00:00
abstract::MEP (mercapto-ethyl-pyridine) HyperCel is one of the hydrophobic charge induction chromatography (HCIC) resins. Under normal operation, proteins are bound to the MEP resin at neutral pH, at which MEP is not charged, mostly via hydrophobic interaction. MEP has a pyridine group, whose pK is 4.8, and hence is positively ...
journal_title:Current protein & peptide science
pub_type: 杂志文章,评审
doi:10.2174/1389203718666171117105132
更新日期:2019-01-01 00:00:00
abstract::Heart failure (HF) is a condition with high mortality worldwide characterized by persistent progression. Myocardial hypertrophy is a dominant feature during the early stage of HF. The development of HF is a complex process related to a series of physiologic and molecular factors. Although the treatment of HF has been ...
journal_title:Current protein & peptide science
pub_type: 杂志文章,评审
doi:10.2174/138920312804142084
更新日期:2012-11-01 00:00:00
abstract::The CW domain is a zinc binding domain, composed of approximately 50- 60 amino acid residues with four conserved cysteine (C) and two to four conserved tryptophan (W) residues. The members of the superfamily of CW domain containing proteins, comprised of 12 different eukaryotic nuclear protein families, are extensivel...
journal_title:Current protein & peptide science
pub_type: 杂志文章,评审
doi:10.2174/1389203717666160125115130
更新日期:2016-01-01 00:00:00
abstract::Serine proteases and their natural inhibitors have long been served as excellent models for studying (primary, secondary and tertiary) structure - activity relationships of biologically interacting proteins. As protein flexibility has been accepted as a "fourth dimension" of the protein structure, its contribution to ...
journal_title:Current protein & peptide science
pub_type: 杂志文章,评审
doi:10.2174/1389203716666150429123733
更新日期:2015-01-01 00:00:00
abstract::Telobox is a Myb-related DNA-binding domain which is present in a number of yeast, plant and animal proteins. Its capacity to bind preferentially double-stranded telomeric DNA has been used in numerous studies to search for candidate telomeric proteins in various organisms, including plants. Here we provide an overvie...
journal_title:Current protein & peptide science
pub_type: 杂志文章,评审
doi:10.2174/138920311795684968
更新日期:2011-03-01 00:00:00
abstract::Covalent conjugation of the ubiquitin tag to cellular proteins plays a central role in a number of processes, the most notable among them being degradation by the 26S proteasome. A fundamental property of this process is that ubiquitination, in contrast to subsequent degradation, is reversible due to a number of deubi...
journal_title:Current protein & peptide science
pub_type: 杂志文章,评审
doi:10.2174/1389203043379756
更新日期:2004-06-01 00:00:00
abstract::Proteasomes are the major nonlysosomal protein degradation machinery in eukaryotic cells and they are largely responsible for the processing of antigens for presentation by the MHC class I pathway. This review concentrates on recent developments in the area of antigen processing. Specialized proteasomes called immunop...
journal_title:Current protein & peptide science
pub_type: 杂志文章,评审
doi:10.2174/1389203043379774
更新日期:2004-06-01 00:00:00
abstract::Cardiomyocytes are best known for their spontaneous beating activity, large cell size, and low regenerative capacity during adulthood. The mechanical activity of cardiomyocytes depends on a sophisticated contractile apparatus comprised of sarcomeres whose rhythmic contraction relies on Ca(2+) transients with a high le...
journal_title:Current protein & peptide science
pub_type: 杂志文章,评审
doi:10.2174/1389203715666140331111518
更新日期:2014-05-01 00:00:00
abstract::To defend themselves from attack by pathogens, plants can rely only on their innate defense systems. Defensins are antimicrobial peptides that contribute to plant immunity by displaying a direct cidal activity against various pathogens, some of which are responsible for plant diseases. These determine a significant de...
journal_title:Current protein & peptide science
pub_type: 杂志文章,评审
doi:10.2174/138920310791112101
更新日期:2010-05-01 00:00:00
abstract::Porphyromonas gingivalis is a Gram-negative anaerobic bacterium that is implicated as a major etiologic agent of adult periodontal disease. This bacterium is asaccharolytic and possesses strong potency for proteolysis. It produces a novel class of cysteine proteinases, termed gingipains, in the cell-associated and sec...
journal_title:Current protein & peptide science
pub_type: 杂志文章,评审
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更新日期:2003-12-01 00:00:00
abstract::Glutathione (GSH or reduced glutathione) is a tripeptide of gamma-Glutamyl-cysteinylglycine and the predominant intracellular antioxidant in many organisms including humans. GSH and associated enzymes are controlled by a transcription factor-nuclear factor-2 related erythroid factor-2 (Nrf2). In cellular milieu, GSH p...
journal_title:Current protein & peptide science
pub_type: 杂志文章
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更新日期:2019-01-01 00:00:00
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journal_title:Current protein & peptide science
pub_type: 杂志文章,评审
doi:10.2174/138920306777452349
更新日期:2006-06-01 00:00:00
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journal_title:Current protein & peptide science
pub_type: 杂志文章
doi:10.2174/138920309787847608
更新日期:2009-04-01 00:00:00
abstract::Flavonoids are plant products abundant in every day diet and claimed to be beneficial for human health. After absorption, flavonoids are transported by the serum albumin (SA), the most abundant carrier blood protein, through formation of flavonoids-SA complex. This review deals with the current state of knowledge on f...
journal_title:Current protein & peptide science
pub_type: 杂志文章
doi:10.2174/1389203721666201109112220
更新日期:2020-11-08 00:00:00
abstract::Calmodulin (CaM) is a highly conserved eukaryotic Ca2+ sensor protein that is able to bind a large variety of target sequences without a defined consensus sequence. The recognition of this diverse target set allows CaM to take part in the regulation of several vital cell functions. To fully understand the structural b...
journal_title:Current protein & peptide science
pub_type: 杂志文章,评审
doi:10.2174/1389203720666190925101937
更新日期:2019-01-01 00:00:00
abstract::Receptor tyrosine kinases (RTKs) are cell surface receptors that transmit extracellular signals to the interior of the cell activating multiple signaling cascades: the binding of specific extracellular ligands activates RTKs which act as a scaffold at plasma membrane level for the recruitment and activation of several...
journal_title:Current protein & peptide science
pub_type: 杂志文章,评审
doi:10.2174/13892037113146660087
更新日期:2013-11-01 00:00:00
abstract::Cell viability depends on the correct folding of the proteins involved in metabolism. Proteins are synthesized on the endoplasmic reticulum and must follow a pathway to a correct, metastable, tridimensional structure. Changes in structure or in environmental conditions can drive an instability of the folding condition...
journal_title:Current protein & peptide science
pub_type: 杂志文章,评审
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更新日期:2011-05-01 00:00:00
abstract::This review is to summarize three new QSAR (quantitative structure-activity relationship) methods recently developed in our group and their applications for drug design. Based on more solid theoretical models and advanced mathematical techniques, the conventional QSAR technique has been recast in the following three a...
journal_title:Current protein & peptide science
pub_type: 杂志文章,评审
doi:10.2174/138920308784534005
更新日期:2008-06-01 00:00:00
abstract::The High mobility group box 1 (HMGB1) protein is an extremely versatile, highly conserved nuclear protein, with its unique intracellular and extracellular functions mediated by its relatively simple domain structure. Within the nucleus, HMGB1 binds to DNA minor groove in a nonspecific manner and causes bends in the do...
journal_title:Current protein & peptide science
pub_type: 杂志文章,评审
doi:10.2174/1389203717666160226145217
更新日期:2016-01-01 00:00:00
abstract::Secondary structure elements often mediate protein-protein interactions. Despite their low abundance in folded proteins, polyproline II (PPII) and its variant, the triple helix, are frequently involved in protein-protein interactions, likely due to their peculiar propensity to be solvent-exposed. We here review the ro...
journal_title:Current protein & peptide science
pub_type: 杂志文章,评审
doi:10.2174/138920312804871157
更新日期:2012-12-01 00:00:00
abstract::In spite of the relevance of the results obtained through the clinical application of chemotherapeutic agents (reverse transcriptase and proteinase inhibitors) that are able to prolong the life span of affected people, acquired immunodeficiency syndrome (AIDS) remains a serious and lethal disease. AIDS is caused by a ...
journal_title:Current protein & peptide science
pub_type: 杂志文章,评审
doi:10.2174/1389203043379729
更新日期:2004-08-01 00:00:00