#cytochromes

[biology-geology-beaches-india]

The Scientific Research Notes of S. Sunkavally (years:2002-2011).

5018-5021.

[biochemistryden]

Electron Transport Chain Components in Mitochondria

Electron Transport Chain Components in Mitochondria

There are five different kinds of electron carriers that participate in the transport of electrons from substrates as they are oxidized in the mitochondria. In addition, Cu+2 is present and functions in the enzyme, Cytochrome oxidase, that catalyses the reduction of O2.

Mitochondrial Electron Transport Chain components: (1) Nicotinamide Nucleotides:

Two pf the oxidations in the TCA Cycle involve…

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[currentsinbiology]

Bacterial nanowires are really wires, not hairs

Some bacteria shoot out tendrils that conduct electricity. Researchers have determined the structure of one variety of bacterial nanowire, and found the wires are distinct from common bacterial hairs that they closely resemble.

The results will help scientists understand how bacteria build up or break down minerals, and help researchers harness the bacteria to make microbial fuel cells, batteries, or to turn waste into electricity.

Appearing online at the Proceedings of the National Academy of Sciences Early Edition, the work was led by Moh El-Naggar at the University of Southern California. Contributors included researchers from the Department of Energy's Pacific Northwest National Laboratory, Penn State, the University of Wisconsin-Milwaukee and Renssalaer Polytechnic Institute.

To determine what the nanowires are made of, researchers used genetics and molecular biology to narrow down the proteins involved. They found that rather than the expected bacterial hair proteins, the nanowires comprised specialized proteins called cytochromes that shuttle electrons. PNNL researchers helped make the cytochromes fluoresce in cells, allowing the team to show they are located in the wires.

Read more at USC's Pressroom.

[fairytrainer]

cytochromes replied to your post: cytochromes liked your post: “just re...

Bae it was a post about you being a prostitute…my dick led me to it

have your dick lead you to me next time tho x

[asfaltics]

researches on, 4

* Plate 12, Chart IV spectra 1-18 (Myohaematin in molluscs, &c.) illustrating C. A. Mac Munn, M.A., M.D., "Researches on Myohaematin and the Histohaematins." Communicated by Professor M. Forster, Sec. R.S.; Received October 19,—Read November 26, 1885. Philosophical Transactions 177 (1886): 267-298 Stanford University copy, no date of digitization.

Specimens exhibited on Charts I-IV discussed pp 296-298

It appears that Mac Munn isolated what are now called cytochromes — he was interested in them as colouring matter — and that their functions became apparent much later. His research involved examination of tissue, compressed to any required thickness, through a binocular microscope; "Observations were frequently checked (and measurements made in wave-lengths) by bringing the object in the compressorium before the slit of a large one-prism chemical spectroscope." (p267)  

[asfaltics]

researches on, 3

* Plate 12, Chart III spectra 1-18 (mammals, more arthropods) illustrating C. A. Mac Munn, M.A., M.D., "Researches on Myohaematin and the Histohaematins." Communicated by Professor M. Forster, Sec. R.S.; Received October 19,—Read November 26, 1885. Philosophical Transactions 177 (1886): 267-298 Stanford University copy, no date of digitization.

Specimens exhibited on Charts I-IV discussed pp 296-298

The best maxim in writing, perhaps, is really to love your reader for his own sake. Charles Sanders Peirce (1839-1914 *) "Private Thoughts," 17 March 1888 (Writings, vol I, p9)  

[asfaltics]

researches on, 2

* Plate 11, Chart II spectra 1-17 (from amphibians, reptiles, birds, mammals) illustrating C. A. Mac Munn, M.A., M.D., "Researches on Myohaematin and the Histohaematins." Communicated by Professor M. Forster, Sec. R.S.; Received October 19,—Read November 26, 1885. Philosophical Transactions 177 (1886): 267-298 Stanford University copy, no date of digitization.

Specimens exhibited on Charts I-IV discussed pp 296-298

Over the last year or so, I have derived a number of posts from the available digitized numbers of the Philosophical Transactions, that soon celebrates its 350th anniversary. Today's post is prompted by this Call for Papers — Publish or Perish? Scientific periodicals from 1665 to the present 19-21 March 2015 The Royal Society, London To celebrate the anniversary of the Philosophical Transactions, the world’s oldest scientific journal, the Royal Society will be hosting a major conference in spring 2015. At a time when the future of scientific publishing is in flux, this conference will take the long perspective by examining the transformations and challenges in the publishing of scientific journals over the last three and a half centuries, and into the future. We seek offers of papers, or proposals for three- or four-paper panels, which engage with any aspect of the commercial, editorial and distribution practices of scientific journal publishing, in any period since 1665, preferably with a comparative or longue durée perspective. I cannot find a working link to the conference; the Royal Society must serve, for now.  

[asfaltics]

researches on, 1

* Plate 11, Chart I spectra 1-17 (mainly from molluscs and arthropods) illustrating C. A. Mac Munn, M.A., M.D., "Researches on Myohaematin and the Histohaematins." Communicated by Professor M. Forster, Sec. R.S.; Received October 19,—Read November 26, 1885. Philosophical Transactions 177 (1886): 267-298 Stanford University copy, no date of digitization.

Specimens exhibited on Charts I-IV discussed pp 296-298

"Cytochromes are, in general, membrane-bound (i.e. inner mitochondrial membrane) hemeproteins containing heme groups and are primarily responsible for the generation of ATP via electron transport." *