Showing 1-30 of 36 results for "34025"
Madhusudhan Srinivasan et al.
Cell, 173(6), 1508-1519 (2018-05-15)
As predicted by the notion that sister chromatid cohesion is mediated by entrapment of sister DNAs inside cohesin rings, there is perfect correlation between co-entrapment of circular minichromosomes and sister chromatid cohesion. In most cells where cohesin loads without conferring...
Marc Kschonsak et al.
Cell, 171(3), 588-600 (2017-10-11)
Condensin protein complexes coordinate the formation of mitotic chromosomes and thereby ensure the successful segregation of replicated genomes. Insights into how condensin complexes bind to chromosomes and alter their topology are essential for understanding the molecular principles behind the large-scale...
Clara L Oeste et al.
PloS one, 6(1), e15866-e15866 (2011-01-22)
Ras proteins are crucial players in differentiation and oncogenesis and constitute important drug targets. The localization and activity of Ras proteins are highly dependent on posttranslational modifications at their C-termini. In addition to an isoprenylated cysteine, H-Ras, but not other...
Isabel Ferreira et al.
Redox biology, 16, 75-86 (2018-02-27)
Low molecular weight reactive chemicals causing skin and respiratory allergies are known to activate dendritic cells (DC), an event considered to be a key step in both pathologies. Although generation of reactive oxygen species (ROS) is considered a major danger...
Thiol labeling with bromobimanes.
N S Kosower et al.
Methods in enzymology, 143, 76-84 (1987-01-01)
Hai Po Helena Liang et al.
The Biochemical journal, 437(3), 455-460 (2011-05-21)
TF (tissue factor) is a transmembrane cofactor that initiates blood coagulation in mammals by binding Factor VIIa to activate Factors X and IX. The cofactor can reside in a cryptic configuration on primary cells and de-encryption may involve a redox...
K Ue
Biochemistry, 26(7), 1889-1894 (1987-04-07)
We previously showed that the fluorescent inter-thiol cross-linker dibromobimane (DBB) [Kosower, N. S., Kosower, E. M., Newton, G. L., & Ranney, H. M. (1979) Proc. Natl. Acad. Sci. U.S.A. 76, 3382-3386] cross-links two [50 and 20 kilodaltons (kDa)] of the...
G Zimmer et al.
FEBS letters, 150(1), 207-210 (1982-12-13)
Using a bromobimane fluorescent label the Mr 31 000 protein band oligomycin-sensitive (OS)-ATPase from beef heart mitochondria is shown to become much intensified by 2-mercaptopropionylglycine. In the presence of 3.5 nmol/mg protein of the thiol reagent ATP-Pi exchange activity is...
Zhenhui Chen et al.
The Journal of biological chemistry, 281(20), 14163-14172 (2006-03-24)
Interactions between the transmembrane domains of phospholamban (PLB) and the cardiac Ca2+ pump (SERCA2a) have been investigated by chemical cross-linking. Specifically, C-terminal, transmembrane residues 45-52 of PLB were individually mutated to Cys, then cross-linked to V89C in the M2 helix...
Alexander Shvetsov et al.
Biochemistry, 45(20), 6541-6549 (2006-05-17)
According to the original Holmes model of F-actin structure, the hydrophobic loop 262-274 stabilizes the actin filament by inserting into a pocket formed at the interface between two protomers on the opposing strand. Using a yeast actin triple mutant, L180C/L269C/C374A...
Dibromobimane as a fluorescent crosslinking reagent.
J S Kim et al.
Analytical biochemistry, 225(1), 174-176 (1995-02-10)
Andrea Sinz et al.
Analytical biochemistry, 331(1), 27-32 (2004-07-13)
Chemical cross-linking of proteins in combination with mass spectrometric analysis of the reaction products has gained renewed interest as a method of obtaining distance constraints within a protein and determining a low-resolution three-dimensional structure. We present a method for identifying...
E Kim et al.
Journal of molecular biology, 299(2), 421-429 (2000-06-22)
The DNase I binding loop (residues 38-52), the hydrophobic plug (residues 262-274), and the C terminus region are among the structural elements of monomeric (G-) actin proposed to form the intermonomer interface in F-actin. To test the proximity and interactions...
Iwona Buskiewicz et al.
Journal of molecular biology, 351(2), 417-430 (2005-07-12)
The signal recognition particle (SRP) initiates the co-translational targeting of proteins to the plasma membrane in bacteria by binding to the N-terminal signal sequence emerging from the translating ribosome. SRP in Escherichia coli is composed of one protein, Ffh, and...
Qingxiu Tang et al.
The Journal of general physiology, 133(6), 555-570 (2009-05-27)
The structure of the pore is critical to understanding the molecular mechanisms underlying selective permeation and voltage-dependent gating of channels formed by the connexin gene family. Here, we describe a portion of the pore structure of unapposed hemichannels formed by...
Beena Krishnan et al.
Chemical biology & drug design, 69(1), 31-40 (2007-02-23)
Coupling genetically encoded target sequences with specific and selective labeling strategies has made it possible to utilize fluorescence spectroscopy in complex mixtures to investigate the structure, function, and dynamics of proteins. Thus, there is a growing need for a repertoire...
P Danielsohn et al.
Histochemistry, 86(3), 281-285 (1987-01-01)
Sulfur containing neuropeptides could be demonstrated in semithin sections of invertebrate nervous tissue, especially of gastropods, by using the bromobimanes as fluorescent labeling agents for thiol groups. Semithin sections showed a brilliant fluorescence of labeled peptides and should be used...
Yung-Feng Lin et al.
The Journal of biological chemistry, 282(23), 16783-16791 (2007-04-19)
The ArsA ATPase is the catalytic subunit of the ArsAB pump encoded by the arsRDABC operon of Escherichia coli plasmid R773. ArsD is a metallochaperone that delivers As(III) to ArsA, increasing its affinity for As(III), thus conferring resistance to environmental...
M Adil Khan et al.
Biochemistry, 48(41), 9745-9756 (2009-09-23)
Membrane-intrinsic enzymes are embedded in lipids, yet how such enzymes interrogate lipid substrates remains a largely unexplored fundamental question. The outer membrane phospholipid:lipid A palmitoyltransferase PagP combats host immune defenses during infection and selects a palmitate chain using its beta-barrel...
Francisco J Sánchez-Gómez et al.
Molecular pharmacology, 78(4), 723-733 (2010-07-16)
Glutathione transferase P1-1 (GSTP1-1) plays crucial roles in cancer chemoprevention and chemoresistance and is a key target for anticancer drug development. Oxidative stress or inhibitor-induced GSTP1-1 oligomerization leads to the activation of stress cascades and apoptosis in various tumor cells....
Weiya Liu et al.
Protein science : a publication of the Protein Society, 22(4), 444-454 (2013-01-30)
For over four decades free Mg(2+) ions, that is, those in excess of MgATP, have been reported to affect a wide variety of properties of phosphorylase kinase (PhK), including its affinity for other molecules, proteolysis, chemical crosslinking, phosphorylation, binding to...
A Bonet et al.
Biochemical and biophysical research communications, 152(1), 1-8 (1988-04-15)
The reaction of the crosslinker dibromobimane has recently revealed a functionally important internal loop structure within the skeletal myosin S1 heavy chain where Cys-522 of the 50K domain and Cys-707 (SH1) of the 20K region are spatially juxtaposed. Here we...
K Konno et al.
Proceedings of the National Academy of Sciences of the United States of America, 97(4), 1461-1466 (2000-03-04)
This paper describes the placement of a crosslinking agent (dibromobimane) between two thiols (Cys-522 and Cys-707) of a fragment, "S1," of the motor protein, myosin. It turns out that fastening the first anchor of the crosslinker is easy and rapid...
R Agarwal et al.
Archives of biochemistry and biophysics, 290(1), 1-6 (1991-10-01)
The ability of dibromobimane to cross-link SH1 (Cys-707) in the 21-kDa C-terminal segment to SH3 (Cys-522) in the 50-kDa middle segment of the myosin S1 heavy chain has been examined as a function of nucleotide binding and temperature. The results...
A Sinz et al.
Biochemistry, 40(26), 7903-7913 (2001-06-27)
Nebulin is a giant multifunctional protein that is thought to serve as both a length-regulating protein ruler and calcium/CaM-mediated regulatory protein on the thin filaments of the skeletal muscle sarcomere. To define molecular interfaces between nebulin and CaM, we thiolated...
T W Loo et al.
The Journal of biological chemistry, 275(50), 39272-39278 (2000-10-03)
P-glycoprotein (P-gp) can transport a wide variety of cytotoxic compounds that have diverse structures. Therefore, the drug-binding domain of the human multidrug resistance P-gp likely consists of residues from multiple transmembrane (TM) segments. In this study, we completed cysteine-scanning mutagenesis...
T W Loo et al.
The Journal of biological chemistry, 272(51), 31945-31948 (1998-01-24)
We identified a thiol-reactive compound, dibromobimane (dBBn), that was a potent stimulator (8.2-fold) of the ATPase activity of Cys-less P-glycoprotein. We then used this compound together with cysteine-scanning mutagenesis to identify residues in transmembrane segment (TM) 6 and TM12 that...
Wiebke Albrecht et al.
Archives of toxicology, 93(6), 1609-1637 (2019-06-30)
Drug-induced liver injury (DILI) cannot be accurately predicted by animal models. In addition, currently available in vitro methods do not allow for the estimation of hepatotoxic doses or the determination of an acceptable daily intake (ADI). To overcome this limitation...
Alexander Shvetsov et al.
Cell motility and the cytoskeleton, 66(2), 90-98 (2008-12-18)
Cortactin is an F-actin- and Arp2/3 complex-binding protein, implicated in the regulation of cytoskeleton dynamics and cortical actin-assembly. The actin-binding domain of cortactin consists of a 6.5 tandem repeat of a 37-amino acid sequence known as the cortactin repeat (residues...
Katrina A Black et al.
Nature communications, 11(1), 3024-3024 (2020-06-17)
The canonical mechanistic model explaining potassium channel gating is of a conformational change that alternately dilates and constricts a collar-like intracellular entrance to the pore. It is based on the premise that K+ ions maintain a complete hydration shell while...

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