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20 Publications visible to you, out of a total of 20
The Taverna workflow suite: designing and executing workflows of Web Services on the desktop, web or in the cloud

Abstract

Not specified

Authors: K. Wolstencroft, R. Haines, D. Fellows, A. Williams, D. Withers, S. Owen, S. Soiland-Reyes, I. Dunlop, A. Nenadic, P. Fisher, J. Bhagat, K. Belhajjame, F. Bacall, A. Hardisty, A. Nieva de la Hidalga, M. P. Balcazar Vargas, S. Sufi, C. Goble

Date Published: 2nd May 2013

Publication Type: Not specified

The transcript catalogue of the short-lived fish Nothobranchius furzeri provides insights into age-dependent changes of mRNA levels

Abstract (Expand)

The African annual fish Nothobranchius furzeri has over recent years been established as a model species for ageing-related studies. This is mainly based on its exceptionally short lifespan and the … presence of typical characteristics of vertebrate ageing. To substantiate its role as an alternative vertebrate ageing model, a transcript catalogue is needed, which can serve e.g. as basis for identifying ageing-related genes.

Authors: Andreas Petzold, Kathrin Reichwald, Marco Groth, Stefan Taudien, Nils Hartmann, Steffen Priebe, Dmitry Shagin, Christoph Englert, Matthias Platzer

Date Published: 16th Mar 2013

Publication Type: Not specified

Stealthy annotation of experimental biology by spreadsheets

Abstract

Not specified

Authors: Firstname Lastname, Firstname Lastname, Matthew Horridge, Simon Jupp, Firstname Lastname, Firstname Lastname, Firstname Lastname, Wolfgang Mueller, Robert Stevens, Firstname Lastname

Date Published: 1st Feb 2013

Publication Type: Not specified

Semantic Data and Models Sharing in Systems Biology: The Just Enough Results Model and the SEEK Platform

Abstract

Not specified

Editor:

Date Published: 2013

Publication Type: Not specified

Semantic Data and Models Sharing in Systems Biology: The Just Enough Results Model and the SEEK Platform

Abstract

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Authors: Katherine Wolstencroft, Stuart Owen, Olga Krebs, Wolfgang Mueller, Quyen Nguyen, Jacky L. Snoep, Carole Goble

Date Published: 2013

Publication Type: Not specified

SABIO-RK: Access to Biochemical Reaction Kinetics Data

Abstract

Not specified

Authors: Martin Golebiewski, Martin Golebiewski

Date Published: 7th Oct 2011

Publication Type: Not specified

Phenomenon of hot-cold hemolysis: chelator-induced lysis of sphingomyelinase-treated erythrocytes

Abstract (Expand)

Staphylococcus aureus produces a phospholipase C specific for sphingomyelin (beta-hemolysin). Erythrocytes with approximately 50% sphingomyelin in their membranes, e.g., from sheep, have been shown to … have up to 60% of this phospholipid hydrolyzed by this enzyme at 37 C in isotonic buffered saline without hemolysis. Cooling of sphingomyelinase C-treated erythrocytes to 4 C causes complete lysis of the cells, a phenomenon known as hot-cold hemolysis. The addition of ethylenediaminetetraacetate (EDTA) to sheep erythrocytes preincubated with sphingomyelinase C was found to induce rapid hemolysis at 37 C. The treated cells became susceptible to chelator-induced hemolysis and to hot-cold hemolysis simultaneously, and the degree of lysis of both mechanisms increased equally with prolonged preincubation with sphingomyelinase C. Erythrocytes of species not readily susceptible to hot-cold hemolysis were equally insusceptible to chelator-induced lysis. Chelators of the EDTA series were the most effective, whereas chelators more specific for Ca2+, Zn2+, Fe2+, Cu2+, and Mg2+ were without effect. The rate of chelator-induced lysis was dependent on the preincubation period with beta-hemolysin and on the concentration of chelator added. The optimal concentration of EDTA was found to equal the amount of exogenously added Mg2+, a cation necessary for sphingomyelinase C activity. Hypotonicity increased the rate of chelator-induced hemolysis, whereas increasing the osmotic pressure to twice isotonic completely inhibited chelator-induced lysis. The data suggest that exogenously added and/or membrane-bound divalent cations are important for the stability of sphingomyelin-depleted membranes. The phenomenon of hot-cold hemolysis may be a consequence of the temperature dependence of divalent ion stabilization.

Authors: C J Smyth, R Möllby, T Wadström

Date Published: 1st Nov 1975

Publication Type: Not specified

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