Results 41 to 50 of about 3,553,338 (335)

Highlights on the capacities of "Gel-based" proteomics

open access: yesProteome Science, 2010
Gel-based proteomic is the most popular and versatile method of global protein separation and quantification. This is a mature approach to screen the protein expression at the large scale, and a cheaper approach as compared with gel-free proteomics ...
Chevalier François
doaj   +1 more source

Single-cell western blotting. [PDF]

open access: yes, 2014
To measure cell-to-cell variation in protein-mediated functions, we developed an approach to conduct ∼10(3) concurrent single-cell western blots (scWesterns) in ∼4 h.
Herr, Amy E   +5 more
core   +2 more sources

About thiol derivatization and resolution of basic proteins in two-dimensional electrophoresis [PDF]

open access: yesProteomics 4 (03/2004) 551-61, 2006
The influence of thiol blocking on the resolution of basic proteins by two-dimensional electrophoresis was investigated. Cysteine blocking greatly increased resolution and decreased streaking, especially in the basic region of the gels. Two strategies for cysteine blocking were found to be efficient: classical alkylation with maleimide derivatives and ...
arxiv   +1 more source

Chromogranins, widespread in endocrine and nervous tissue, bind Ca2+ [PDF]

open access: yes, 1985
The proteinaceous components of the secretory vesicle contents isolated from bovine adrenal medulla bind Ca2+ (number of binding sites, 152 ± 52 nmol Ca2+ per mg protein; dissociation constant, 54 ± 8 μM (n = 5)).
Gratzl, Manfred, Reiffen, F. U.
core   +1 more source

A cellular system to study responses to a collision between the transcription complex and a protein‐bound nick in the DNA template

open access: yesFEBS Letters, EarlyView.
We present the cellular transcription‐coupled Flp‐nick system allowing the introduction of a Top1‐mimicking cleavage complex (Flpcc) at a Flp recognition target site within a controllable LacZ gene. LacZ transcription leads to the collision of RNA polymerase II (RNAPII) with Flpcc, and this causes RNAPII stalling, ubiquitination, and degradation.
Petra Herring   +6 more
wiley   +1 more source

Silver Staining of 2D Electrophoresis Gels [PDF]

open access: yesMethods in Molecular Biology -Clifton then Totowa- 893 (2012) 61-73, 2012
Silver staining is used to detect proteins after electrophoretic separation on polyacrylamide gels. It -combines excellent sensitivity (in the low nanogram range) with the use of very simple and cheap equipment and chemicals. For its use in proteomics, two important additional features must be considered, compatibility with mass spectrometry and ...
arxiv   +1 more source

The carboxylate “gripper” of the substrate is critical for C‐4 stereo‐inversion by UDP‐glucuronic acid 4‐epimerase

open access: yesFEBS Letters, EarlyView.
UDP‐glucuronic acid 4‐epimerase (UGAepi) catalyzes NAD+‐dependent interconversion of UDP‐glucuronic acid (UDP‐GlcA) and UDP‐galacturonic acid (UDP‐GalA) via C4‐oxidation, 4‐keto‐intermediate rotation, and C4‐reduction. Here, Borg et al. examined the role of the substrate's carboxylate group in the enzymic mechanism by analyzing NADH‐dependent reduction
Annika J. E. Borg   +2 more
wiley   +1 more source

Identification of antigenic proteins from salivary glands of female Anopheles maculatus by proteomic analysis

open access: yesAsian Pacific Journal of Tropical Biomedicine, 2016
Objective: To identify antigenic proteins from the salivary glands of female Anopheles maculatus using a proteomic approach to find the biomarker candidate for serological tools.
Yunita Armiyanti   +6 more
doaj   +1 more source

In vivo evidence for glycyl radical insertion into a catalytically inactive variant of pyruvate formate‐lyase

open access: yesFEBS Letters, EarlyView.
Dimeric pyruvate formate‐lyase cleaves pyruvate using a radical‐based mechanism. G734 serves as a radical storage location, and the radical is transferred to the catalytic C419 residue. Mutation of the C418‐C419 pair causes loss of enzyme activity, but does not impede radical introduction onto G734. Therefore, cis‐ but not trans‐radical transfer occurs
Michelle Kammel   +2 more
wiley   +1 more source

The repton model of gel electrophoresis [PDF]

open access: yesPhysica A 244, 25 (1997), 1996
We discuss the repton model of agarose gel electrophoresis of DNA. We review previous results, both analytic and numerical, as well as presenting a new numerical algorithm for the efficient simulation of the model, and suggesting a new approach to the model's analytic solution.
arxiv   +1 more source

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