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Zinc fingers help read DNA sequences.. Zinc is an essential trace element for humans [1] [2] [3] and other animals, [4] for plants [5] and for microorganisms. [6] Zinc is required for the function of over 300 enzymes and 1000 transcription factors, [3] and is stored and transferred in metallothioneins.
The succinate dehydrogenase complex showing several cofactors, including flavin, iron–sulfur centers, and heme.. A cofactor is a non-protein chemical compound or metallic ion that is required for an enzyme's role as a catalyst (a catalyst is a substance that increases the rate of a chemical reaction).
Re-ingestion allows for absorption of nutrients made available by bacterial fermentation, and also of vitamins and other nutrients synthesized by the gut bacteria, including vitamin B 12. [ 74 ] Non-ruminant, non-hindgut herbivores may have an enlarged forestomach and/or small intestine to provide a place for bacterial fermentation and B ...
Zinc pyrithione (or pyrithione zinc) is a coordination complex of zinc. It has fungistatic (inhibiting the division of fungal cells) and bacteriostatic (inhibiting bacterial cell division) properties and is used in the treatment of seborrhoeic dermatitis [ 2 ] and dandruff .
Zinc finger. The zinc ion (green) is coordinated by two histidine residues and two cysteine residues. Many transcription factors contain a structure known as a zinc finger, a structural module in which a region of protein folds around a zinc ion. The zinc does not directly contact the DNA that these proteins bind to.
The main alcohol dehydrogenase in yeast is larger than the human one, consisting of four rather than just two subunits. It also contains zinc at its catalytic site. Together with the zinc-containing alcohol dehydrogenases of animals and humans, these enzymes from yeasts and many bacteria form the family of "long-chain"-alcohol dehydrogenases.
Because zinc is often a limiting factor in bacterial infections, some pathogenic bacteria are heavily dependent on ZnuABC to scavenge zinc from the environment in an animal host. [4] The periplasmic protein ZnuA interacts with ZinT, another component of the regulon controlled by Zur, which is also involved in periplasmic zinc homeostasis. [4 ...
Pages in category "Zinc enzymes" The following 28 pages are in this category, out of 28 total. This list may not reflect recent changes. 0–9.