Adenosine, generally solubility

Certain enzymes shown to be present in myelin could be involved in ion transport. Carbonic anhydrase has generally been considered a soluble enzyme and a glial marker but myelin accounts for a large part of the membrane-bound form in brain. This enzyme may play a role in removal of carbonic acid from metabolically active axons. The enzymes 5 -nucleotidase and Na+, K+-ATPase have long been considered specific markers for plasma membranes and are found in myelin at low levels. The 5 -nucleotidase activity may be related to a transport mechanism for adenosine, and Na+, K+-ATPase could well be involved in transport of monovalent cations. The presence of these enzymes suggests that myelin may have an active role in ion transport in and out of the axon. In connection with this hypothesis, it is of interest that the PLP gene family may have evolved from a pore-forming polypeptide [9],... 

Organic phosphates, for example, phospho-rylated protein and the phosphates of adenosine, are generally unstable and break down over time to water-soluble inorganic phosphate. Accordingly, ATP must be continually resupplied by the metabolism of a living organism. At death, respiration stops oxidative phosphorylation stops the re-supply of ATP... 

ALT AND AST. Alanine aminotransferase and aspartate aminotransferase are enzymes located in liver cells that leak out into the general circulation when liver cells are injured. Previously known as the SGPT (serum glutamic-pymvic transaminase) and the SCOT (serum glutaic-oxaloacetic transaminase), respectively ATPASE. Adenosine triphosphatase BALSAMS. Mixtures of resins that contain relatively large amounts of cinnamic or benzoic acid or their esters. Typical balsams are balsam Peru, balsam Tolu, styrax, and benzoin. Canada balsam, Oregon balsam, and copaiba balsam are not true balsams since they do not contain benzoic or cinnamic acid or their esters. Balsams are insoluble in water but soluble in alcohol... 

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