| plasmal reaction | <chemistry> Long chain aliphatic aldehydes occurring in plasmalogens react with Schiff's reagent in the so called plasmal reaction, to form for example palmitaldehyde, stearaldehyde. (31 Dec 1997) |
|---|---|
| plasmalemma | <cell biology> Archaic name for the plasma membrane of a cell (the term often included the cortical cytoplasmic region). Adjectival derivative (plasmalemmal) still current. (31 Dec 1997) |
| plasmalogen | <biochemistry> A group of glycerol based phospholipids in which the aliphatic side chains are not attached by ester linkages. Widespread distribution, found mainly in brain and spinal cord tissue. Less easily studied than the acyl phospholipids. (13 Oct 1997) |
| plasmalogenase | <enzyme> Liberates free aldehyde plus glycerophosphoethanolamine from lysoplasmalogen (1-alk-1'-enyl-sn-glycero-3-phosphoethanolamine Chemical name: 1-alk-1'-enyl-2-acyl-sn-glycero-3-phosphorylethanolamine aldehydohydrolase Registry number: EC 3.3.2.- Synonym: lysoplasmalogenase (26 Jun 1999) |
| plasmalogens | Generic term for glycerophospholipids in which the glycerol moiety bears a 1-alkenyl ether group (on rarer occasions, a 1-alkyl ether group); e.g., alk-1-enylglycerophospholipid; plasmalogens synthesis is reduced in disorders of the peroxisome. Synonym: phosphoglyceracetals. (05 Mar 2000) |
| plasmals | Long-chain aldehydes occurring in plasmalogens; e.g., stearaldehyde, palmitaldehyde. (05 Mar 2000) |