DFS

DFS may refer to:

Computing

File systems

Engineering

DFS (British retailer)

DFS, formerly Direct Furnishing Supplies, is a furniture retailer in the United Kingdom and Ireland specialising in sofas and soft furnishings. It is listed on the London Stock Exchange and is a constituent of the FTSE 250 Index.

History

Northern Upholstery

In 1969, aged 24, Kirkham was married with two children, which he describes as great motivation. Having visited a few manufacturers in his daily work, he decided that making furniture was relatively easy and that by cutting out the warehouse dealers in the middle of the supply chain, he could sell direct to the public at lower prices. Kirkham rented a room above a snooker hall in Carcroft, and started making furniture upstairs and retailing it downstairs.

DFS

By 1983, Darley Dale–based Direct Furnishing Supplies, originally founded by Herbert Hardy in around 1970, had become one of Northern Upholstery's biggest suppliers. Kirkham bought it. Northern Upholstery was renamed DFS (although branches of Northern Upholstery in Yorkshire had retained their original name until the mid-1990s) and at the time had a total of 63 stores employing 2,000 staff.

DFS Kopernikus

DFS-Kopernikus meaning Deutscher Fernmeldesatellit Kopernikus) was the name of three geostationary satellites of Deutsche Bundespost and later Deutsche Telekom AG. They are no longer in use.

When DFS-Kopernikus 3 was nearing the end of its life, SES sealed an agreement with Deutsche Telekom to use the 23.5° east position and frequencies, and in August 2001, Astra 1D was moved there. The Astra 23.5°E position was officially opened in March 2002 with the launch and positioning of Astra 3A. Deutsche Telekom contracted for 10 transponders on that craft and shortly switched over all traffic from DFS-Kopernikus 3.

Station Keeping

The orbital station keeping manoeuvres of the satellites were conducted by the Flight Dynamics Group of the German Aerospace Center (German Space Operations Center) in Oberpfaffenhofen, Bavaria. The satellites were located at the following positions:

DPH1

Diphthamide biosynthesis protein 1 is a protein that in humans is encoded by the DPH1 gene. It encodes a protein that performs posttranslational modification of histidine-715 on eukaryotic translation elongation factor 2 to diphthamide. This modification appears to be important in the translation of Cyclin D in ovarian cells. DPH1 is mutated in 90% of ovarian cancers end stage, usually by loss of heterozygosity.

References

Further reading

DPH5

Diphthine synthase is an enzyme that in humans is encoded by the DPH5 gene.

This gene encodes a component of the diphthamide synthesis pathway. Diphthamide is a post-translationally modified histidine residue found only on translation elongation factor 2. It is conserved from archaebacteria to humans, and is targeted by diphtheria toxin and Pseudomonas exotoxin A to halt cellular protein synthesis. The yeast and Chinese hamster homologs of this protein catalyze the trimethylation of the histidine residue on elongation factor 2, resulting in a diphthine moiety that is subsequently amidated to yield diphthamide. Multiple transcript variants encoding different isoforms have been found for this gene.

References

Further reading