Redox cofactor raises a handful of sensible questions. This page answers them in order, starting with the fundamentals and moving to applications.
This page was last updated on 2026-06-26 and is reviewed periodically as new material appears.
NAD+ also serves as a substrate for enzymes that cleave it, including sirtuins, PARPs, and CD38. These enzymes consume NAD+ and release nicotinamide and ADP-ribose or related products. The dual roles as redox cofactor and signaling substrate connect NAD+ to DNA repair, circadian regulation, and calcium signaling. Cellular NAD+ concentrations vary by tissue, time of day, and stress exposure. How these consumption pathways interact with redox balance remains an active area of research.
NAD+ is a dinucleotide composed of two nucleotides joined by a pyrophosphate linkage. One nucleotide contains adenine, and the other contains nicotinamide. The oxidized form carries a positive charge on the nicotinamide ring and is abbreviated NAD+. It functions as a cofactor in hydride-transfer reactions, accepting electrons in catabolic pathways. In cells, it interconverts with reduced NADH, forming a redox couple central to energy metabolism. The molecule is water-soluble and does not cross cell membranes freely without specific transport or precursor pathways.
The nicotinamide ring undergoes reversible reduction at the para position, converting NAD+ to NADH. This reaction transfers a hydride equivalent, not a free hydrogen atom or electron alone. Because the redox pair has a defined reduction potential, it links oxidation of fuels to respiratory chain activity. Many dehydrogenases use NAD+ as a co-substrate and produce NADH. The ratio of NAD+ to NADH reflects metabolic state and influences flux through several pathways.
Beyond electron transfer, NAD+ serves as a substrate for enzymes that cleave the molecule and transfer ADP-ribose units. Sirtuins, poly(ADP-ribose) polymerases, and CD38 consume NAD+ in regulatory reactions. These activities link NAD+ availability to DNA repair, chromatin modification, calcium signaling, and metabolic stress responses. Because consumption can exceed biosynthesis under some conditions, cellular NAD+ levels are dynamic rather than fixed. Enzyme affinity and local synthesis also influence how much NAD+ is available for signaling.
NAD+ is a dinucleotide composed of adenine, ribose, and nicotinamide moieties linked by phosphate groups. Its oxidized form carries a positive charge on the nicotinamide ring, which enables reversible hydride transfer. The molecule functions as a coenzyme in oxidoreductase reactions rather than as a dietary vitamin in its intact form. Cells maintain separate pools in cytoplasm, mitochondria, and nucleus. This compartmentalization allows distinct redox environments while preserving a shared chemical identity.
| Property | Value | Notes |
|---|---|---|
| IUPAC name | Nicotinamide adenine dinucleotide | Oxidized dinucleotide form |
| CAS Registry Number | 53-84-9 | Common entry for beta-NAD+ |
| Molecular formula | C21H27N7O14P2 | Free acid form |
| Molar mass | 663.43 g/mol | Calculated for free acid |
| Water solubility | Freely soluble | Charged dinucleotide; less soluble in organic solvents |
In cells, NAD+ functions primarily as an electron carrier. Dehydrogenase enzymes in glycolysis and the citric acid cycle transfer hydride from substrates to NAD+, producing NADH. NADH then delivers electrons to the mitochondrial respiratory chain, supporting ATP synthesis. In fermentation, NADH is reoxidized to NAD+ so that glycolysis can continue. The balance between NAD+ and NADH helps set metabolic flux. Beyond redox, NAD+ serves as a substrate for enzymes that cleave it, including sirtuins, poly(ADP-ribose) polymerases, and CD38. These reactions consume NAD+ and release nicotinamide and ADP-ribose products.
Biosynthesis occurs through salvage, Preiss-Handler, and de novo pathways. In mammals, the salvage pathway from nicotinamide predominates, and NAMPT is often described as rate-limiting. Nicotinamide riboside and nicotinic acid enter related routes that converge on NAD+ production. Tissue NAD+ concentrations vary widely and are maintained by a balance of synthesis and consumption. Some studies report age-related declines in certain tissues, but whether these changes cause disease or can be reversed to improve human health remains an open question.
NAD+ stands for nicotinamide adenine dinucleotide, the oxidized form of a coenzyme found in all living cells. The molecule consists of two nucleotides, adenine and nicotinamide ribose, joined through phosphate groups. Its chemical formula is C21H27N7O14P2, and the free acid has a molar mass near 663.43 grams per mole. In redox reactions, NAD+ accepts a hydride ion and becomes NADH. The pair NAD+ and NADH participates in hundreds of metabolic reactions, including steps in glycolysis, the citric acid cycle, and oxidative phosphorylation.
NAD+ is a dinucleotide composed of nicotinamide, ribose, and adenine linked by phosphate groups. Its full name is nicotinamide adenine dinucleotide, with "+" denoting the oxidized form. The molecule acts as a coenzyme in redox reactions, cycling between NAD+ and NADH. In cells, it participates in electron transfer during glycolysis, the citric acid cycle, and oxidative phosphorylation. It is distinct from NADP+, which carries an additional phosphate group and supports different biosynthetic reactions.
Beyond redox chemistry, NAD+ serves as a substrate for enzymes that transfer ADP-ribose or remove acetyl groups. Sirtuins, PARPs, and CD38-family enzymes consume NAD+ and produce nicotinamide and ADP-ribose-related products. These reactions link NAD+ availability to DNA repair, chromatin modification, and cellular signaling. Because the molecule is central to energy metabolism and regulation, changes in its concentration are studied in aging, immunity, and metabolic research. The balance between synthesis and consumption varies by tissue, developmental stage, and physiological state.
== Clinical development == As of November 2019, arketamine is under development for the treatment of depression under the developmental code names PCN-101 by Perception Neuroscience in the United States and HR-071603 by Jiangsu Hengrui Medicine in China. Arketamine failed to show antidepressant effectiveness in a controlled phase 2a clinical trial.
With biologist James Thompson's development of first human stem cell lines in 1998 followed by transplantation of first laboratory-grown internal organs in 1999 and creation of the first bioprinter in 2003 by the University of Missouri when they printed spheroids without the need of scaffolds, 3D bioprinting became more conventionally used in medical field than ever before. So far, scientists have been able to print mini organoids and organs-on-chips that have rendered practical insights into the functions of a human body. Pharmaceutical companies are using these models to test drugs before moving on to animal studies. However, a fully functional and structurally similar organ has not been printed yet. A team at the University of Utah has reportedly printed ears and successfully transplanted those onto children born with defects that left their ears partially developed. Today, hydrogels are the preferred choice of bio-inks for 3D bioprinting since they mimic cells' natural ECM while also containing strong mechanical properties capable of sustaining 3D structures. Furthermore, hydrogels in conjunction with 3D bioprinting allow researchers to produce different scaffolds which can be used to form new tissues or organs. 3D printed tissues still face many challenges such as adding vasculature. Among the hydrogels, Festigel, a thermo-reversible gelation polymer group of scaffolds have been reported with in vitro tissue engineering and in vivo wound healing efficiency in urethral stricture, periodontal regeneration beside holding potentials in transportation of tissues and cells.
===== Scotland ===== There are four NHS Scotland Gender Identity Clinics providing services to adults and a separate service for younger people. The National Gender Identity Clinical Network for Scotland reported in 2021 that some patients had waited in excess of two years from referral for their first appointment. Minister for Public Health Maree Todd has stated that the Scottish Government wants to reduce "unacceptable waits to access gender identity services". Research has indicated patient dissatisfaction with long wait times. However, overall experience of treatment outcomes was largely positive, particularly for hormone therapy and surgery.
Testing of tissue remains the most definitive way of confirming the diagnosis of CJD, although even a biopsy is not always conclusive. In one-third of people with sporadic CJD, deposits of "prion protein (scrapie)", PrPSc, can be found in the skeletal muscle or the spleen. Diagnosis of vCJD can be supported by biopsy of the tonsils, which harbor significant amounts of PrPSc; however, biopsy of brain tissue is the definitive diagnostic test for all other forms of prion disease. Due to its invasiveness, a biopsy will not be done if clinical suspicion is sufficiently high or low. A negative biopsy does not rule out CJD, since it may predominate in a specific part of the brain. The classic histologic appearance is spongiform change in the gray matter: the presence of many round vacuoles from one to 50 micrometers in the neuropil, in all six cortical layers in the cerebral cortex, or with diffuse involvement of the cerebellar molecular layer. These vacuoles appear glassy or eosinophilic and may coalesce. Neuronal loss and gliosis are also seen. Plaques of amyloid-like material can be seen in the neocortex in some cases of CJD. However, extra-neuronal vacuolization can also be seen in other disease states. Diffuse cortical vacuolization occurs in Alzheimer's disease, and superficial cortical vacuolization occurs in ischemia and frontotemporal dementia. These vacuoles appear clear and punched out. Larger vacuoles encircling neurons, vessels, and glia are a possible processing artifact.
== Further reading == Habibi, N; Kamaly, N; Memic, A; Shafiee, H (2016). "Self-assembled peptide-based nanostructures: Smart nanomaterials toward targeted drug delivery". Nano Today. 11 (1): 41–60. doi:10.1016/j.nantod.2016.02.004. PMC 4834907. PMID 27103939.
Sources: en.wikipedia.org
The mRNA is loaded onto the ribosome and is read three nucleotides at a time by matching each codon to its base pairing anticodon located on a transfer RNA molecule, which carries the amino acid corresponding to the codon it recognizes. The enzyme aminoacyl tRNA synthetase "charges" the tRNA molecules with the correct amino acids. The growing polypeptide is often termed the nascent chain. Proteins are always biosynthesized from N-terminus to C-terminus. The size of a synthesized protein can be measured by the number of amino acids it contains and by its total molecular mass, which is normally reported with the unit dalton (Da), or its derivative unit kilodalton (kDa). The average size of a protein increases from Archaea to Bacteria to Eukaryote (283, 311, 438 residues and 31, 34, 49 kDa respectively) due to a bigger number of protein domains constituting proteins in higher organisms. For instance, yeast proteins are on average 466 amino acids long and 53 kDa in mass. The largest known proteins are the titins, a component of the muscle sarcomere, with a molecular mass of almost 3000 kDa and a total length of almost 27000 amino acids.
Afonsoconus Tucker & Tenorio, 2013: synonym of Conus (Afonsoconus) Tucker & Tenorio, 2013 represented as Conus Linnaeus, 1758 Africonus Petuch, 1975: synonym of Conus (Lautoconus) Monterosato, 1923 represented as Conus Linnaeus, 1758 Arubaconus Petuch, 2013: synonym of Conus (Ductoconus) da Motta, 1991 represented as Conus Linnaeus, 1758 Asprella Schaufuss, 1869: synonym of Conus (Asprella) Schaufuss, 1869 represented as Conus Linnaeus, 1758 Atlanticonus Petuch & Sargent, 2012: synonym of Conus (Atlanticonus) Petuch & Sargent, 2012 represented as Conus Linnaeus, 1758 Attenuiconus Petuch, 2013: synonym of Conus (Attenuiconus) Petuch, 2013 represented as Conus Linnaeus, 1758 Austroconus Tucker & Tenorio, 2009 synonym of Conus (Austroconus) Tucker & Tenorio, 2009 represented as Conus Linnaeus, 1758 Bathyconus Tucker & Tenorio, 2009: synonym of Conasprella (Fusiconus) Thiele, 1929, represented as Conasprella Thiele, 1929 Bermudaconus Petuch, 2013: synonym of Conus (Bermudaconus) Petuch, 2013 represented as Conus Linnaeus, 1758 Boucheticonus Tucker & Tenorio, 2013: synonym of Conasprella (Boucheticonus) Tucker & Tenorio, 2013 represented as Conasprella Thiele, 1929 Brasiliconus Petuch, 2013: synonym of Conus (Brasiliconus) Petuch, 2013 represented as Conus Linnaeus, 1758 Calamiconus Tucker & Tenorio, 2009: synonym of Conus (Lividoconus) Wils, 1970 represented as Conus Linnaeus, 1758 Calibanus da Motta, 1991: synonym of Conus (Calibanus) da Motta, 1991 represented as Conus Linnaeus, 1758 Cariboconus Petuch, 2003: synonym of Conus (Dauciconus) Cotton, 1945 represented as Conus Linnaeus, 1758 Californiconus Tucker & Tenorio, 2009 Chelyconus Mörch, 1852: synonym of Conus (Chelyconus) Mörch, 1852 represented as Conus Linnaeus, 1758 Cleobula Iredale, 1930: synonym of Dendroconus Swainson, 1840 Coltroconus Petuch, 2013: synonym of Conasprella (Coltroconus) Petuch, 2013 represented as Conasprella Thiele, 1929 Conasprella Thiele, 1929: accepted name Conasprelloides Tucker & Tenorio, 2009: synonym of Conus (Dauciconus) Cotton, 1945 represented as Conus Linnaeus, 1758 † Conilithes Swainson, 1840 Continuconus Tucker & Tenorio, 2013 Conus Linnaeus, 1758: accepted name Cornutoconus Suzuki, 1972: synonym of Taranteconus Azuma, 1972 Coronaxis Swainson, 1840: synonym of Conus (Conus) Linnaeus, 1758 represented as Conus Linnaeus, 1758 Cucullus Röding, 1798: synonym of Conus (Conus) Linnaeus, 1758 represented as Conus Linnaeus, 1758 Cylinder Montfort, 1810: synonym of Conus (Cylinder) Montfort, 1810 represented as Conus Linnaeus, 1758 Cylindrella Swainson, 1840: synonym of Asprella Schaufuss, 1869synonym of Conus (Asprella) Schaufuss, 1869 represented as Conus Linnaeus, 1758 Cylindrus Batsch, 1789: synonym of Cylinder Montfort, 1810synonym of Conus (Cylinder) Montfort, 1810 represented as Conus Linnaeus, 1758 Dalliconus Tucker & Tenorio, 2009: synonym of Conasprella (Dalliconus) Tucker & Tenorio, 2009 synonym of Conasprella Thiele, 1929 Darioconus Iredale, 1930: synonym of Conus (Darioconus) Iredale, 1930 represented as Conus Linnaeus, 1758 Dauciconus Cotton, 1945: synonym of Conus (Dauciconus) Cotton, 1945 represented as Conus Linnaeus, 1758 Dendroconus Swainson, 1840: synonym of Conus (Dendroconus) Swainson, 1840 represented as Conus Linnaeus, 1758 Ductoconus da Motta, 1991: synonym of Conus (Ductoconus) da Motta, 1991 represented as Conus Linnaeus, 1758 Duodenticonus Tucker & Tenorio, 2013: synonym of Conasprella (Conasprella) Thiele, 1929 represented as Conasprella Thiele, 1929 Dyraspis Iredale, 1949: synonym of Conus (Virroconus) Iredale, 1930 represented as Conus Linnaeus, 1758 Elisaconus Tucker & Tenorio, 2013: synonym of Conus (Elisaconus) Tucker & Tenorio, 2013 represented as Conus Linnaeus, 1758 Embrikena Iredale, 1937: synonym of Conus (Embrikena) Iredale, 1937 represented as Conus Linnaeus, 1758 Endemoconus Iredale, 1931: synonym of Conasprella (Endemoconus) Iredale, 1931 represented as Conasprella Thiele, 1929 Eremiconus Tucker & Tenorio, 2009: synonym of Conus (Eremiconus) Tucker & Tenorio, 2009 represented as Conus Linnaeus, 1758 Erythroconus da Motta, 1991: synonym of Conus (Darioconus) Iredale, 1930 represented as Conus Linnaeus, 1758 Eugeniconus da Motta, 1991: synonym of Conus (Eugeniconus) da Motta, 1991 represented as Conus Linnaeus, 1758 Floraconus Iredale, 1930: synonym of Conus (Floraconus) Iredale, 1930 represented as Conus Linnaeus, 1758 Fraterconus Tucker & Tenorio, 2013: synonym of Conus (Fraterconus) Tucker & Tenorio, 2013 represented as Conus Linnaeus, 1758 Fulgiconus da Motta, 1991: synonym of Conus (Phasmoconus) Mörch, 1852 represented as Conus Linnaeus, 1758 Fumiconus da Motta, 1991: synonym of Conasprella (Fusiconus) da Motta, 1991 represented as Conasprella Thiele, 1929 Fusiconus da Motta, 1991: synonym of Conasprella (Fusiconus) da Motta, 1991 represented as Conasprella Thiele, 1929 Gastridium Modeer, 1793: synonym of Conus (Gastridium) Modeer, 1793 represented as Conus Linnaeus, 1758 Genuanoconus Tucker & Tenorio, 2009: synonym of Conus (Kalloconus) da Motta, 1991 represented as Conus Linnaeus, 1758 Gladioconus Tucker & Tenorio, 2009: synonym of Conus (Monteiroconus) da Motta, 1991 represented as Conus Linnaeus, 1758 Globiconus Tucker & Tenorio, 2009: synonym of Conasprella (Ximeniconus) Emerson & Old, 1962 represented as Conasprella Thiele, 1929 Gradiconus da Motta, 1991: synonym of Conus (Dauciconus) Cotton, 1945 represented as Conus Linnaeus, 1758 Graphiconus da Motta, 1991: synonym of Conus (Phasmoconus) Mörch, 1852 represented as Conus Linnaeus, 1758 Harmoniconus da Motta, 1991: synonym of Conus (Harmoniconus) da Motta, 1991 represented as Conus Linnaeus, 1758 Hermes Montfort, 1810: synonym of Conus (Hermes) Montfort, 1810 represented as Conus Linnaeus, 1758 Heroconus da Motta, 1991: synonym of Conus (Pionoconus) Mörch, 1852 represented as Conus Linnaeus, 1758 Isoconus Tucker & Tenorio, 2013: synonym of Conus (Splinoconus) da Motta, 1991 represented as Conus Linnaeus, 1758 Jaspidiconus Petuch, 2004: synonym of Conasprella (Ximeniconus) Emerson & Old, 1962 represented as Conasprella Thiele, 1929 Kalloconus da Motta, 1991: synonym of Conus (Kalloconus) da Motta, 1991 represented as Conus Linnaeus, 1758 Kellyconus Petuch, 2013: synonym of Conus (Kellyconus) Petuch, 2013 represented as Conus Linnaeus, 1758 Kenyonia Brazier, 1896: genus incertae sedis Kermasprella Powell, 1958: synonym of Conasprella (Endemoconus) Iredale, 1931 represented as Conasprella Thiele, 1929 Ketyconus da Motta, 1991: synonym of Conus (Floraconus) Iredale, 1930 represented as Conus Linnaeus, 1758 Kioconus da Motta, 1991: synonym of Conus (Splinoconus) da Motta, 1991 represented as Conus Linnaeus, 1758 Klemaeconus Tucker & Tenorio, 2013: synonym of Conus (Klemaeconus) Tucker & Tenorio, 2013 represented as Conus Linnaeus, 1758 Kohniconus Tucker & Tenorio, 2009: synonym of Conasprella (Kohniconus) Tucker & Tenorio, 2009 represented as Conasprella Thiele, 1929 Kurodaconus Shikama & Habe, 1968: synonym of Conus (Turriconus) Shikama & Habe, 1968 represented as Conus Linnaeus, 1758 Lamniconus da Motta, 1991: synonym of Conus (Lamniconus) da Motta, 1991 represented as Conus Linnaeus, 1758 Lautoconus Monterosato, 1923: synonym of Conus (Lautoconus) Monterosato, 1923 represented as Conus Linnaeus, 1758 Leporiconus Iredale, 1930: synonym of Conus (Leporiconus) Iredale, 1930 represented as Conus Linnaeus, 1758 Leptoconus Swainson, 1840: synonym of Conus (Leptoconus) Swainson, 1840 represented as Conus Linnaeus, 1758 Lilliconus Raybaudi Massilia, 1994: synonym of Conasprella (Lilliconus) G. Raybaudi Massilia, 1994 represented as Conasprella Thiele, 1929 Lindaconus Petuch, 2002: synonym of Conus (Lindaconus) Petuch, 2002 represented as Conus Linnaeus, 1758 Lithoconus Mörch, 1852: synonym of Conus (Lithoconus) Mörch, 1852 represented as Conus Linnaeus, 1758 Lividoconus Wils, 1970: synonym of Conus (Lividoconus) Wils, 1970 represented as Conus Linnaeus, 1758 Lizaconus da Motta, 1991synonym of Profundiconus Kuroda, 1956 Magelliconus da Motta, 1991: synonym of Conus (Dauciconus) Cotton, 1945 represented as Conus Linnaeus, 1758 Malagasyconus Monnier & Tenorio, 2015 Mamiconus Cotton & Godfrey, 1932: synonym of Endemoconus Iredale, 1931synonym of Conasprella (Endemoconus) Iredale, 1931 represented as Conasprella Thiele, 1929 Miliariconus Tucker & Tenorio, 2009: synonym of Conus (Virroconus) Iredale, 1930 represented as Conus Linnaeus, 1758 Mitraconus Tucker & Tenorio, 2013: synonym of Conus (Turriconus) Shikama & Habe, 1968 represented as Conus Linnaeus, 1758 Monteiroconus da Motta, 1991: synonym of Conus (Monteiroconus) da Motta, 1991 represented as Conus Linnaeus, 1758 Nataliconus Tucker & Tenorio, 2009: synonym of Conus (Leptoconus) Swainson, 1840 represented as Conus Linnaeus, 1758 Nimboconus Tucker & Tenorio, 2013: synonym of Conus (Phasmoconus) Mörch, 1852 represented as Conus Linnaeus, 1758 Nitidoconus Tucker & Tenorio, 2013: synonym of Conus (Splinoconus) da Motta, 1991 represented as Conus Linnaeus, 1758 Ongoconus da Motta, 1991: synonym of Conus (Splinoconus) da Motta, 1991 represented as Conus Linnaeus, 1758 Papyriconus Tucker & Tenorio, 2013: synonym of Conus (Papyriconus) Tucker & Tenorio, 2013 represented as Conus Linnaeus, 1758 Parviconus Cotton & Godfrey, 1932: synonym of Conasprella (Parviconus) Cotton & Godfrey, 1932 represented as Conasprella Thiele, 1929 Perplexiconus Tucker & Tenorio, 2009: synonym of Conasprella (Ximeniconus) Emerson & Old, 1962 represented as Conasprella Thiele, 1929 Phasmoconus Mörch, 1852: synonym of Conus (Phasmoconus) Mörch, 1852 represented as Conus Linnaeus, 1758 Pionoconus Mörch, 1852: synonym of Conus (Pionoconus) Mörch, 1852 represented as Conus Linnaeus, 1758 Plicaustraconus Moolenbeek, 2008: synonym of Conus (Plicaustraconus) Moolenbeek, 2008 represented as Conus Linnaeus, 1758 Poremskiconus Petuch, 2013: synonym of Conus (Dauciconus) Cotton, 1945 represented as Conus Linnaeus, 1758 Profundiconus Kuroda, 1956: accepted name Protoconus da Motta, 1991: synonym of Tenorioconus Petuch & Drolshagen, 2011 Protostrioconus Tucker & Tenorio, 2009: synonym of Conus (Gastridium) Modeer, 1793 represented as Conus Linnaeus, 1758 Pseudoconorbis Tucker & Tenorio, 2009: synonym of Conasprella (Pseudoconorbis) Tucker & Tenorio, 2009, represented as Conasprella Thiele, 1929 Pseudohermes Tucker & Tenorio, 2013: synonym of Conus (Virgiconus) Cotton, 1945 represented as Conus Linnaeus, 1758 Pseudolilliconus Tucker & Tenorio, 2009: synonym of Conus (Pseudolilliconus) Tucker & Tenorio, 2009 represented as Conus Linnaeus, 1758 Pseudonoduloconus Tucker & Tenorio, 2009: synonym of Conus (Pseudonoduloconus) Tucker & Tenorio, 2009 represented as Conus Linnaeus, 1758 Pseudopterygia Tucker & Tenorio, 2013: synonym of Conus (Pseudopterygia) Tucker & Tenorio, 2013 represented as Conus Linnaeus, 1758 Puncticulis Swainson, 1840: synonym of Conus (Puncticulis) Swainson, 1840 represented as Conus Linnaeus, 1758 Purpuriconus da Motta, 1991: synonym of Conus (Dauciconus) Cotton, 1945 represented as Conus Linnaeus, 1758 Pygmaeconus Puillandre & Tenorio, 2017 Pyruconus Olsson, 1967: synonym of Conus (Pyruconus) Olsson, 1967 represented as Conus Linnaeus, 1758 Quasiconus Tucker & Tenorio, 2009: synonym of Conus (Quasiconus) Tucker & Tenorio, 2009 represented as Conus Linnaeus, 1758 Regiconus Iredale, 1930: synonym of Conus (Darioconus) Iredale, 1930 represented as Conus Linnaeus, 1758 Rhizoconus Mörch, 1852: synonym of Conus (Rhizoconus) Mörch, 1852 represented as Conus Linnaeus, 1758 Rhombiconus Tucker & Tenorio, 2009: synonym of Conus (Stephanoconus) Mörch, 1852 represented as Conus Linnaeus, 1758 Rhombus Montfort, 1810: synonym of Rhombiconus Tucker & Tenorio, 2009, synonym of Conus (Stephanoconus) Mörch, 1852 represented as Conus Linnaeus, 1758 Rolaniconus Tucker & Tenorio, 2009: synonym of Conus (Strategoconus) da Motta, 1991 represented as Conus Linnaeus, 1758 Rollus Montfort, 1810 :synonym of Conus (Gastridium) Modeer, 1793 represented as Conus Linnaeus, 1758 Rubroconus Tucker & Tenorio, 2013: synonym of Conus (Rubroconus) Tucker & Tenorio, 2013 represented as Conus Linnaeus, 1758 Sandericonus Petuch, 2013: synonym of Conus (Sandericonus) Petuch, 2013 represented as Conus Linnaeus, 1758 Sciteconus da Motta, 1991: synonym of Conus (Sciteconus) da Motta, 1991 represented as Conus Linnaeus, 1758 Seminoleconus Petuch, 2003: synonym of Conus (Stephanoconus) Mörch, 1852 represented as Conus Linnaeus, 1758 Socioconus da Motta, 1991: synonym of Conus (Pionoconus) Mörch, 1852 represented as Conus Linnaeus, 1758 Splinoconus da Motta, 1991: synonym of Conus (Splinoconus) da Motta, 1991 represented as Conus Linnaeus, 1758 Spuriconus Petuch, 2003: synonym of Conus (Lindaconus) Petuch, 2002 represented as Conus Linnaeus, 1758 Stellaconus Tucker & Tenorio, 2009: synonym of Conus (Splinoconus) da Motta, 1991 represented as Conus Linnaeus, 1758 Stephanoconus Mörch, 1852: synonym of Conus (Stephanoconus) Mörch, 1852 represented as Conus Linnaeus, 1758 Strategoconus da Motta, 1991: synonym of Conus (Strategoconus) da Motta, 1991 represented as Conus Linnaeus, 1758 Strioconus Thiele, 1929: synonym of Pionoconus Mörch, 1852, synonym of Conus (Pionoconus) Mörch, 1852 represented as Conus Linnaeus, 1758 Sulciconus Bielz, 1869: synonym of Asprella Schaufuss, 1869, synonym of Conus (Asprella) Schaufuss, 1869 represented as Conus Linnaeus, 1758 Taranteconus Azuma, 1972: synonym of Conus (Stephanoconus) Mörch, 1852 represented as Conus Linnaeus, 1758 Tenorioconus Petuch & Drolshagen, 2011: synonym of Conus (Stephanoconus) Mörch, 1852 represented as Conus Linnaeus, 1758 Tesselliconus da Motta, 1991: synonym of Conus (Tesselliconus) da Motta, 1991 represented as Conus Linnaeus, 1758 Textilia Swainson, 1840: synonym of Conus (Textilia) Swainson, 1840 represented Conus Linnaeus, 1758 Thalassiconus Tucker & Tenorio, 2013: synonym of Calibanus da Motta, 1991, synonym of Conus (Calibanus) da Motta, 1991 represented as Conus Linnaeus, 1758 Theliconus Swainson, 1840: synonym of Hermes Montfort, 1810, synonym of Conus (Hermes) Montfort, 1810 represented as Conus Linnaeus, 1758 Thoraconus da Motta, 1991: synonym of Fulgiconus da Motta, 1991, synonym of Conus (Phasmoconus) Mörch, 1852 represented as Conus Linnaeus, 1758 Trovaoconus Tucker & Tenorio, 2009, synonym of Conus (Kalloconus) da Motta, 1991 represented as Conus Linnaeus, 1758 Tuckericonus Petuch, 2013: synonym of Conus (Dauciconus) Cotton, 1945 represented as Conus Linnaeus, 1758 Tuliparia Swainson, 1840: synonym of Gastridium Modeer, 1793, synonym of Conus (Gastridium) Modeer, 1793 represented as Conus Linnaeus, 1758 Turriconus Shikama & Habe, 1968, synonym of Conus (Turriconus) Shikama & Habe, 1968 represented as Conus Linnaeus, 1758 Utriculus Schumacher, 1817: synonym of Gastridium Modeer, 1793, synonym of Conus (Gastridium) Modeer, 1793 represented as Conus Linnaeus, 1758 Varioconus da Motta, 1991: synonym of Conus (Lautoconus) Monterosato, 1923 represented as Conus Linnaeus, 1758 Viminiconus Tucker & Tenorio, 2009: synonym of Conasprella (Fusiconus) da Motta, 1991 represented as Conasprella Thiele, 1929 Virgiconus Cotton, 1945: synonym of Conus (Virgiconus) Cotton, 1945 represented as Conus Linnaeus, 1758 Virroconus Iredale, 1930: synonym of Conus (Virroconus) Iredale, 1930 represented as Conus Linnaeus, 1758 Vituliconus da Motta, 1991: synonym of Conus (Strategoconus) da Motta, 1991 represented as Conus Linnaeus, 1758 Ximeniconus Emerson & Old, 1962: synonym of Conasprella (Ximeniconus) Emerson & Old, 1962 represented as Conasprella Thiele, 1929 Yeddoconus Tucker & Tenorio, 2009: synonym of Conasprella (Endemoconus) Iredale, 1931 represented as Conasprella Thiele, 1929
In early November 2020, Israel Hadassah Medical Center director-general Zeev Rotstein stated that Hadassah's branch in Moscow's Skolkovo Innovation Center was collaborating on a phase III clinical trial. The ongoing phase III study is a randomised, double-blind, placebo-controlled, multi-centre clinical trial involving 40,000 volunteers in Moscow, and is scheduled to run until May 2021. In 2020–2021, phase III clinical studies were also being conducted in Belarus, UAE, India, Kazakhstan and Venezuela. On 13 April 2021, India's health ministry said its drug regulator had found that safety and immunogenicity data from a local trial of Sputnik V coronavirus vaccine was comparable to that of a late-stage trial done in Russia.
=== Chinese === Chinese soy sauces (Chinese: 醬油; pinyin: jiàng yóu; Jyutping: zoeng3 jau4; Cantonese Yale: jeungyàuh; or alternatively, 豉油; pinyin: chǐyóu; Jyutping: si6jau4; Cantonese Yale: sihyàuh) are primarily made from soybeans, with relatively low amounts of other grains. Chinese soy sauce produced by fermentation can be roughly split into two classes: brewed (direct fermented) or blended (with additives), occupying about 40% and 60% of market share respectively. Sauces can also be classed by fermentation technology (shown above) into Low-Salt Solid-State fermented soy sauce (LSF; 低鹽固態) and High-Salt Liquid-State fermented soy sauce (HLF; 高鹽稀態), occupying about 90% and 10% of market share respectively.
Sources: en.wikipedia.org
NAD+ is the oxidized form, while NADH is the reduced form carrying an added hydride. The two form a redox pair that cells use in many energy-yielding reactions.
NAD+ is a small organic cofactor, not a protein or enzyme. It binds temporarily to enzymes such as dehydrogenases to assist electron transfer.
Intact NAD+ is generally not taken up efficiently by most cells because it is charged and water-soluble. Cells often rely on precursors such as nicotinamide or nicotinamide riboside to produce NAD+ internally.
NAD+ is the oxidized form, while NADH is the reduced form carrying an additional hydride equivalent. The pair participates in reversible electron transfer reactions. Their ratio helps indicate the redox state of a compartment.