Reaction Process: PlantCyc:GRAIMONDII_PWY-6730

Chloride ion

Cl- (34.968853)

Under standard conditions, chlorine exists as a diatomic molecule. Chlorine is a highly toxic, pale yellow-green gas that has a specific strong smell. In nature, chlorine is most abundant as a chloride ion. Physiologically, it exists as an ion in the body. The chloride ion is an essential anion that the body needs for many critical functions. It also helps keep the bodys acid-base balance. The amount of chloride in the blood is carefully controlled by the kidneys. Chloride ions have important physiological roles. For instance, in the central nervous system, the inhibitory action of glycine and some of the action of GABA relies on the entry of Cl- into specific neurons. Also, the chloride-bicarbonate exchanger biological transport protein relies on the chloride ion to increase the bloods capacity of carbon dioxide, in the form of the bicarbonate ion. Chloride-transporting proteins (CLC) play fundamental roles in many tissues in the plasma membrane as well as in intracellular membranes. CLC proteins form a gene family that comprises nine members in mammals, at least four of which are involved in human genetic diseases. GABA(A) receptors are pentameric complexes that function as ligand-gated chloride ion channels. WNK kinases are a family of serine-threonine kinases that have been shown to play an essential role in the regulation of electrolyte homeostasis, and they are found in diverse epithelia throughout the body that are involved in chloride ion flux. Cystic fibrosis (CF) is caused by alterations in the CF transmembrane conductance regulator (CFTCR) gene that result in deranged sodium and chloride ion transport channels. (PMID: 17539703, 17729441, 17562499, 15300163) (For a complete review see Evans, Richard B. Chlorine: state of the art. Lung (2005), 183(3), 151-167. PMID: 16078037). The chloride ion is formed when the element chlorine picks up one electron to form the Cl- anion. The chloride ion is one of the most common anions in nature and is necessary to most forms of life. It is an essential electrolyte responsible for maintaining acid/base balance and regulating fluid in and out of cells. [Wikipedia]. Chloride is found in many foods, some of which are jute, grapefruit, lentils, and lime.

Iodide

I- (126.904477)

Iodide can function as an antioxidant as it is a reducing species that can detoxify reactive oxygen species such as hydrogen peroxide. Over three billion years ago, blue-green algae were the most primitive oxygenic photosynthetic organisms and are the ancestors of multicellular eukaryotic algae (1). Algae that contain the highest amount of iodine (1-3 \\% of dry weight) and peroxidase enzymes, were the first living cells to produce poisonous oxygen in the atmosphere. Therefore algal cells required a protective antioxidant action of their molecular components, in which iodides, through peroxidase enzymes, seem to have had this specific role. In fact, iodides are greatly present and available in the sea, where algal phytoplankton, the basis of marine food-chain, acts as a biological accumulator of iodides, selenium, (and n-3 fatty acids) :; Antioxidant biochemical mechanism of iodides, probably one of the most ancient mechanisms of defense from poisonous reactive oxygen species:; An iodide ion is an iodine atom with a -1 charge. Compounds with iodine in formal oxidation state -1 are called iodides. This can include ionic compounds such as caesium iodide or covalent compounds such as phosphorus triiodide. This is the same naming scheme as is seen with chlorides and bromides. The chemical test for an iodide compound is to acidify the aqueous compound by adding some drops of acid, to dispel any carbonate ions present, then adding lead(II) nitrate, yielding a bright yellow precipitate of lead iodide. Most ionic iodides are soluble, with the exception of yellow silver iodide and yellow lead iodide. Aqueous solutions of iodide dissolve iodine better than pure water due to the formation of complex ions: [HMDB]. Iodide is found in many foods, some of which are breakfast cereal, star anise, annual wild rice, and peppermint. Iodide can function as an antioxidant as it is a reducing species that can detoxify reactive oxygen species such as hydrogen peroxide. Over three billion years ago, blue-green algae were the most primitive oxygenic photosynthetic organisms and are the ancestors of multicellular eukaryotic algae (1). Algae that contain the highest amount of iodine (1-3 \\% of dry weight) and peroxidase enzymes, were the first living cells to produce poisonous oxygen in the atmosphere. Therefore algal cells required a protective antioxidant action of their molecular components, in which iodides, through peroxidase enzymes, seem to have had this specific role. In fact, iodides are greatly present and available in the sea, where algal phytoplankton, the basis of marine food-chain, acts as a biological accumulator of iodides, selenium, (and n-3 fatty acids) :; Antioxidant biochemical mechanism of iodides, probably one of the most ancient mechanisms of defense from poisonous reactive oxygen species:; An iodide ion is an iodine atom with a -1 charge. Compounds with iodine in formal oxidation state -1 are called iodides. This can include ionic compounds such as caesium iodide or covalent compounds such as phosphorus triiodide. This is the same naming scheme as is seen with chlorides and bromides. The chemical test for an iodide compound is to acidify the aqueous compound by adding some drops of acid, to dispel any carbonate ions present, then adding lead(II) nitrate, yielding a bright yellow precipitate of lead iodide. Most ionic iodides are soluble, with the exception of yellow silver iodide and yellow lead iodide. Aqueous solutions of iodide dissolve iodine better than pure water due to the formation of complex ions:. COVID info from PDB, Protein Data Bank Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS

Bromide

Br- (78.918336)

Bromine is a brown or red liquid with a characteristic odor. Bromine is mainly used in the manufacture of dyes, inks, flame retardants, pharmaceuticals and chemical warfare agents. Occupational exposure to bromine may occur during the production and the application of bromine compounds and during other industrial activities. This compound is adsorbed into the human body through the respiratory tract, skin (occupational exposure) and alimentary tract (general population). Physiologically, bromine exists as an ion in the body. Slight eye irritation occurs as a consequence of chronic exposure to bromine vapors at concentration of 1 mg/m3. Higher concentrations increase this effect and cause nasal and skin irritation. Many years observations have shown that during occupational exposure to bromine vapors at concentrations of up to 0.7 mg/m3 (0.1 ppm), there are no observed adverse effects. From cytotoxicity and mutagenicity assays, it is known that brominated organic compounds are more toxic than chlorinated organic compounds. However, only a limited number of brominated organic compounds have been regulated. (PMID: 17316744). Bromine is a brown or red liquid with a characteristic odor. Bromine is mainly used in the manufacture of dyes, inks, flame retardants, pharmaceuticals and chemical warfare agents. Occupational exposure to bromine may occur during the production and the application of bromine compounds and during other industrial activities. This compound is adsorbed into the human body through the respiratory tract, skin (occupational exposure) and alimentary tract (general population). Physiologically, bromine exists as an ion in the body. Slight eye irritation occurs as a consequence of chronic exposure to bromine vapors at concentration of 1 mg/m3. Higher concentrations increase this effect and cause nasal and skin irritation. Many years observations have shown that during occupational exposure to bromine vapors at concentrations of up to 0.7 mg/m3 (0.1 ppm), there are no observed adverse effects. D002491 - Central Nervous System Agents > D000927 - Anticonvulsants > D001965 - Bromides N - Nervous system > N05 - Psycholeptics > N05C - Hypnotics and sedatives

Bromomethane

CH3Br (93.9418098)

Principally used as an insecticidal and nemacidal fumigant, especially for soil and agricultural produce. Also used as a solvent for extraction of plant oils The chemical compound bromomethane, commonly known as methyl bromide, is an organobromine compound with formula CH3Br. This colorless, odorless, nonflammable gas is produced both industrially and particularly biologically. It is a recognized ozone-depleting chemical. It was used extensively as a pesticide until being phased out by most countries in the early 2000s

Iodomethane

CH3I (141.9279508)

Chloromethane

CH3Cl (49.9923268)

S-Adenosyl-L-methionine

C15H23N6O5S+ (399.1450568)

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5-S-[(3S)-3-azaniumyl-3-carboxylatopropyl]-5-thioadenosine

C14H20N6O5S (384.12158300000004)