Abstract:
:Due to their ease of use and high binding affinity, streptavidin-based purification tools have become widely used for isolating biotinylated compounds from complex mixtures. We and others routinely use streptavidin-sepharose matrices to isolate biotinylated polypeptides generated in proximity-dependent biotinylation approaches, such as BioID or APEX. However, we noted sporadic, substantial variation in the quality of BioID experiments performed in the same laboratories over time, using seemingly identical protocols. Identifying the source of this problem, here, we highlight considerable variability in streptavidin contamination derived from different production lots of streptavidin-sepharose beads from the same manufacturer and demonstrate that high levels of streptavidin peptide contamination can have detrimental effects on BioID data. We also describe two simple, rapid approaches to assess the degree of streptavidin "shedding" from individual lots of the sepharose matrix before use to avoid the use of lower quality reagent.
journal_name
J Proteome Resjournal_title
Journal of proteome researchauthors
St-Germain JR,Samavarchi Tehrani P,Wong C,Larsen B,Gingras AC,Raught Bdoi
10.1021/acs.jproteome.0c00117subject
Has Abstractpub_date
2020-08-07 00:00:00pages
3554-3561issue
8eissn
1535-3893issn
1535-3907journal_volume
19pub_type
杂志文章abstract::We analyzed the whole-cell protein content of gastrocnemius muscles from rats in different thyroid states. Twenty differentially expressed proteins were unambiguously identified. They were involved in substrates and energy metabolism, stress response, cell structure, and gene expression. This study represents the firs...
journal_title:Journal of proteome research
pub_type: 杂志文章
doi:10.1021/pr0701299
更新日期:2007-08-01 00:00:00
abstract::Mass spectrometry (MS) is a widely used proteome analysis tool for biomedical science. In an MS-based bottom-up proteomic approach to protein identification, sequence database (DB) searching has been routinely used because of its simplicity and convenience. However, searching a sequence DB with multiple variable modif...
journal_title:Journal of proteome research
pub_type: 杂志文章
doi:10.1021/acs.jproteome.6b01019
更新日期:2017-12-01 00:00:00
abstract::Selenite has been a touted cancer chemopreventative agent but generates conflicting outcomes. Multiple mechanisms of selenite cytotoxicity in cancer cells are thought to be induced by metabolites of selenite. We observed that intracellular metabolism of selenite generates endogenous selenium nanoparticles (SeNPs) in c...
journal_title:Journal of proteome research
pub_type: 杂志文章
doi:10.1021/pr501086e
更新日期:2015-02-06 00:00:00
abstract::We analyzed a unique rice (Oryza sativa L.) blast lesion mimic (blm) mutant for differentially expressed proteins in leaves of one- and two-week-old seedlings manifesting the lesion mimic phenotype. Gel-based one- and two-dimensional electrophoresis (1- and 2-DGE) was performed using leaves (blm and wild-type, WT) bef...
journal_title:Journal of proteome research
pub_type: 杂志文章
doi:10.1021/pr060092c
更新日期:2006-10-01 00:00:00
abstract::Most MALDI instrumentation uses UV lasers. We have designed a MALDI-IM-oTOF-MS which employs both a Nd:YAG laser pumped optical parametric oscillator (OPOTEK, lambda = 2.8-3.2 microm at 20 Hz) to perform IR-LDI or IR-MALDI and a Nd:YLF laser (Crystalaser, lambda = 249 nm at 200 Hz) for the UV. Ion mobility (IM) gives ...
journal_title:Journal of proteome research
pub_type: 杂志文章
doi:10.1021/pr060055l
更新日期:2006-06-01 00:00:00
abstract::New technologies have advanced the field of proteomics, and a number of companies have developed innovative platforms to drive this research. However, significant challenges are often encountered when trying to integrate complementary technologies from multiple manufacturers. We have developed a software and hardware ...
journal_title:Journal of proteome research
pub_type: 杂志文章
doi:10.1021/pr050465u
更新日期:2006-09-01 00:00:00
abstract::Development of early embryonic stages before activation of the embryonic genome depends on sufficiently stored products of the maternal genome, adequate recruitment and degradation of mRNAs, as well as activation, deactivation, and relocation of proteins. By application of an isobaric tagging for relative and absolute...
journal_title:Journal of proteome research
pub_type: 杂志文章
doi:10.1021/pr500550t
更新日期:2014-10-03 00:00:00
abstract::We propose a method for finding features in liquid chromatography mass spectrometry data that is based on the isotopic pattern of peaks. Our interactive approach to feature finding is carried out across many samples simultaneously and aligns features concurrently. Our scale-independent approach prioritises potential f...
journal_title:Journal of proteome research
pub_type: 杂志文章
doi:10.1021/pr060226m
更新日期:2006-11-01 00:00:00
abstract::Skeletal muscle has emerged as an important secretory organ that produces so-called myokines, regulating energy metabolism via autocrine, paracrine, and endocrine actions; however, the nature and extent of the muscle secretome has not been fully elucidated. Mass spectrometry (MS)-based proteomics, in principle, allows...
journal_title:Journal of proteome research
pub_type: 杂志文章
doi:10.1021/acs.jproteome.5b00720
更新日期:2015-11-06 00:00:00
abstract::TGFBR2 serves as an initial regulator of the TGF-β signaling pathway, and loss or reduction of its expression can lead to uncontrolled cell growth. This study was conducted to further explore the mechanism of TGFBR2/SMAD4 on the migration and proliferation of CC cells. Here, TGFBR2 and SMAD4 expressions in CC cells an...
journal_title:Journal of proteome research
pub_type: 杂志文章
doi:10.1021/acs.jproteome.0c00239
更新日期:2020-08-07 00:00:00
abstract::Protein citrullination (or deimination), an irreversible post-translational modification, has been implicated in several physiological and pathological processes, including gene expression regulation, apoptosis, rheumatoid arthritis, and Alzheimer's disease. Several research studies have been carried out on citrullina...
journal_title:Journal of proteome research
pub_type: 杂志文章
doi:10.1021/acs.jproteome.9b00118
更新日期:2019-05-03 00:00:00
abstract::Hepatitis C virus (HCV) causes chronic liver disease worldwide. HCV Core protein (Core) forms the viral capsid and is crucial for HCV pathogenesis and HCV-induced hepatocellular carcinoma, through its interaction with the host factor proteasome activator PA28γ. Here, using BD-PowerBlot high-throughput Western array, w...
journal_title:Journal of proteome research
pub_type: 杂志文章
doi:10.1021/pr300121a
更新日期:2012-07-06 00:00:00
abstract::Rosiglitazone is a thiazolidinedione used to treat insulin resistance in diabetes. Although thiazolidinediones may also exert cardiovascular effects, contrasting results were reported. Favorable effects were shown for pioglitazone, whereas adverse reactions were suspected for rosiglitazone. Therefore, a reassessment o...
journal_title:Journal of proteome research
pub_type: 杂志文章
doi:10.1021/pr900435z
更新日期:2010-01-01 00:00:00
abstract::Aspergillus fumigatus is a ubiquitously distributed filamentous fungus that has emerged as one of the most serious life-threatening pathogens in immunocompromised patients. The mechanisms for its pathogenicity are poorly understood. Here, we analyzed the proteome of dormant A. fumigatus conidia as the fungal entity ha...
journal_title:Journal of proteome research
pub_type: 杂志文章
doi:10.1021/pr9010684
更新日期:2010-07-02 00:00:00
abstract::Investigation of how diatoms cope with the rapid fluctuations in iron bioavailability in marine environments may facilitate a better understanding of the mechanisms underlying their ecological success, in particular their ability to proliferate rapidly during favorable conditions. In this study, using in vivo biochemi...
journal_title:Journal of proteome research
pub_type: 杂志文章
doi:10.1021/pr5004664
更新日期:2014-12-05 00:00:00
abstract::We used a peptidomic approach for the analysis of the low molecular weight proteome in rat pancreatic tissue extracts. The goal was to develop a method that allows identifying endogenous peptides produced in the pancreas in the course of acute pancreatitis. The workflow combines peptides enrichment by centrifugal ultr...
journal_title:Journal of proteome research
pub_type: 杂志文章
doi:10.1021/pr1002627
更新日期:2010-09-03 00:00:00
abstract::Type-I procollagen aminoterminal propeptide (PINP) is a useful biomarker for bone formation activity that is used to monitor treatment of bone disorders including osteoporosis. Studies with human patients under long-term therapy for osteoporosis by daily injection of parathyroid hormone (PTH) demonstrated that the cir...
journal_title:Journal of proteome research
pub_type: 杂志文章
doi:10.1021/pr070288s
更新日期:2007-11-01 00:00:00
abstract::Method development is one of the objectives of the astrophysical community for characterizing the organic matter in objects of the solar system. In this context, we report on the development of an enzyme-catalyzed stereoselective hydrolysis, inspired by the proteomics discipline, which has enabled the indirect detecti...
journal_title:Journal of proteome research
pub_type: 杂志文章
doi:10.1021/acs.jproteome.0c00700
更新日期:2020-10-20 00:00:00
abstract::Nicotinamide adenine dinucleotide (NAD) is a coenzyme found in all living cells and mediates multiple cellular signaling pathways. In the present study, a 35% decrease of cellular NAD level is achieved by stable expression of the N-terminal truncated CD38, a NAD hydrolase. CD38-expressing (CD38(+)) cells have the lowe...
journal_title:Journal of proteome research
pub_type: 杂志文章
doi:10.1021/pr4010597
更新日期:2014-02-07 00:00:00
abstract::Although some outer membrane (OM) proteins involved in antibiotic resistance have been previously reported, the OM proteins regulating chlortetracycline (CTC) resistance are largely unknown. In this study, we employed a subproteomics approach to identify altered OM proteins of Escherichia coli in response to CTC expos...
journal_title:Journal of proteome research
pub_type: 杂志文章
doi:10.1021/pr100740w
更新日期:2010-11-05 00:00:00
abstract::Glioblastoma multiforme (GBM) is the most aggressive malignant primary brain tumor, with a dismal mean survival even with the current standard of care. Although in vitro cell systems can provide mechanistic insight into the regulatory networks governing GBM cell proliferation and migration, clinical samples provide a ...
journal_title:Journal of proteome research
pub_type: 杂志文章
doi:10.1021/pr500418w
更新日期:2014-11-07 00:00:00
abstract::We have expanded our recent on-line LC-MS platform for large peptide analysis to combine collision-induced dissociation (CID), electron-transfer dissociation (ETD), and CID of an isolated charge-reduced (CRCID) species derived from ETD to determine sites of phosphorylation and glycosylation modifications, as well as t...
journal_title:Journal of proteome research
pub_type: 杂志文章
doi:10.1021/pr070313u
更新日期:2007-11-01 00:00:00
abstract::A "one-pot" alternative method for processing proteins and isolating peptide mixtures from bacterial samples is presented for liquid chromatography-tandem mass spectrometry (LC-MS/MS) analysis and data reduction. The conventional in-solution digestion of the protein contents of bacteria is compared to a small disposab...
journal_title:Journal of proteome research
pub_type: 杂志文章
doi:10.1021/pr101086a
更新日期:2011-02-04 00:00:00
abstract::A database of nonredundant structures of EF-hand domains--i.e., pairs of helix-loop-helix motifs--has been assembled, and the six angles among the four helices re-determined. A principal component analysis of these angles allows us to use two such components (PC1 and PC2) to describe the system retaining 80% of the to...
journal_title:Journal of proteome research
pub_type: 杂志文章
doi:10.1021/pr050148n
更新日期:2005-11-01 00:00:00
abstract::Nasopharyngeal carcinoma (NPC) is one of the most common malignant tumors in Southeast Asia. Unfortunately, most NPC victims have had metastasis when first diagnosed due to its deep location and vague symptoms. To date, discovery of sensitive and specific biomarkers for improving detection of NPC remains a challenge. ...
journal_title:Journal of proteome research
pub_type: 杂志文章
doi:10.1021/pr900454e
更新日期:2009-12-01 00:00:00
abstract::The development of plasma biomarkers has proven to be more challenging than initially anticipated. Many studies have reported lists of candidate proteins rather than validated candidate markers with an assigned performance to a specific clinical objective. Biomarker research necessitates a clear rational framework wit...
journal_title:Journal of proteome research
pub_type: 杂志文章,评审
doi:10.1021/pr1008515
更新日期:2011-01-07 00:00:00
abstract::Colorectal cancer (CRC) is the third most common cancer worldwide and has poor prognosis. To identify the proteins involved in colorectal carcinogenesis, we employed 2-DE and MALDI-TOF/TOF-based proteomics approach to study the differentially expressed proteins in tumor and adjacent nontumor tissue samples. Samples fr...
journal_title:Journal of proteome research
pub_type: 杂志文章
doi:10.1021/pr900365e
更新日期:2009-10-01 00:00:00
abstract::Protein or peptide sample losses could accompany all steps of the proteomic analysis workflow. We focused on suppression of sample adsorptive losses during sample storage in autosampler vials. We examined suppression capabilities of six different sample injection solutions and seven types of autosampler vial surfaces ...
journal_title:Journal of proteome research
pub_type: 杂志文章
doi:10.1021/pr400183v
更新日期:2013-06-07 00:00:00
abstract::Regulated secretory vesicles produce, store, and secrete active peptide hormones and neurotransmitters that function in cell-cell communication. To gain knowledge of the protein systems involved in such secretory vesicle functions, we analyzed proteins in the soluble and membrane fractions of dense core secretory vesi...
journal_title:Journal of proteome research
pub_type: 杂志文章
doi:10.1021/pr060503p
更新日期:2007-05-01 00:00:00
abstract::Recent progress in genomics, proteomics, and bioinformatics enables unprecedented opportunities to examine the evolutionary history of molecular, cellular, and developmental pathways through phylogenomics. Accordingly, we have developed a motif analysis tool for phylogenomics (Phylomat, http://alg.ncsa.uiuc.edu/pmat) ...
journal_title:Journal of proteome research
pub_type: 杂志文章
doi:10.1021/pr0499040
更新日期:2004-11-01 00:00:00