| PPP | pain perception profile; palatopharyngoplasty; palmoplantar pustulosis; pentose phosphate pathway; p... |
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| ECG | Electro-Cardio-Graphy(-Gram); ½ÉÀüµµ = EKG 1. Conducting System Structu... |
| PC | avoirdupois weight [Lat. pondus civile]; packed cells; paper chromatography; paracortex; parent cell... |
| PPC | pentose phosphate cycle; peripheral posterior curve; plasma prothrombin conversion; pneumopericardiu... |
| EM Pathway | Embden Meyerhof Pathway |
| PPP | Pentose phosphate pathways |
|---|---|
| AP | accessory pathway |
| ACP | Alternative complement pathway |
| AP | Alternative pathway |
| CP | Classical pathway |
pentose nucleic acid (ÆæÅ佺 ÇÙ»ê
| pentose phosphate pathway | <biochemistry> A pathway of hexose oxidation in which glucose-6-phosphate undergoes two successive oxidations by NADP, the final one being an oxidative decarboxylation to form a pentose phosphate. Diverges from this when glucose-6-phosphate is oxidized to ribose 5 phosphate by the enzyme glucose-6 phosphate dehydrogenase. This step reduces NADP to NADPH, generating a source of reducing power in cells for use in reductive biosyntheses. In plants, part of the pathway functions in the formation of hexoses from carbon dioxide in photosynthesis. Also important as source of pentoses, for example for nucleic acid biosynthesis. This pathway is the main metabolic pathway in neutrophils, congenital deficiency in the pathway produces sensitivity to infection. Alternative metabolic route to Embden Meyerhof pathway for breakdown of glucose. (18 Nov 1997) |
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| pentose phosphate cycle | <biochemistry> A pathway of hexose oxidation in which glucose-6-phosphate undergoes two successive oxidations by NADP, the final one being an oxidative decarboxylation to form a pentose phosphate. Diverges from this when glucose-6-phosphate is oxidized to ribose 5 phosphate by the enzyme glucose-6 phosphate dehydrogenase. This step reduces NADP to NADPH, generating a source of reducing power in cells for use in reductive biosyntheses. In plants, part of the pathway functions in the formation of hexoses from carbon dioxide in photosynthesis. Also important as source of pentoses, for example for nucleic acid biosynthesis. This pathway is the main metabolic pathway in neutrophils, congenital deficiency in the pathway produces sensitivity to infection. Alternative metabolic route to Embden Meyerhof pathway for breakdown of glucose. (18 Nov 1997) |
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| pentose | <chemistry> Sugar (monosaccharide) with five carbon atoms. Include ribose and deoxyribose of nucleic acids and many others such as the aldoses arabinose and xylose and the ketoses ribulose and xylulose. (12 Dec 1998) |
| pentose monophosphate shunt | <biochemistry> A pathway of hexose oxidation in which glucose-6-phosphate undergoes two successive oxidations by NADP, the final one being an oxidative decarboxylation to form a pentose phosphate. Diverges from this when glucose-6-phosphate is oxidized to ribose 5 phosphate by the enzyme glucose-6 phosphate dehydrogenase. This step reduces NADP to NADPH, generating a source of reducing power in cells for use in reductive biosyntheses. In plants, part of the pathway functions in the formation of hexoses from carbon dioxide in photosynthesis. Also important as source of pentoses, for example for nucleic acid biosynthesis. This pathway is the main metabolic pathway in neutrophils, congenital deficiency in the pathway produces sensitivity to infection. Alternative metabolic route to Embden Meyerhof pathway for breakdown of glucose. (18 Nov 1997) |
| UDPacetylglucosamine-dolichyl-phosphate acetylglucosamine-1-phosphate transferase | <enzyme> Transfers n-acetylglucosamine 1-phosphate from udp-n-acetylglucosamine to dolichyl phosphate, forming n-acetylglucosaminylpyrophosphoryldolichol Chemical name: udp-glcnac-dolichyl-phosphate glcnac-1-phosphate transerase Registry number: EC 2.7.8.15 Synonym: n-acetylglucosamine-1-phosphate transferase, dol-p-p-glcnac synthase, dolichol pathway enzyme I, udp-acetylglucosamine-dolichol phosphate acetylglucosamine-1-phosphate transferase, glcnac-dp-1-phosphotransferase, udp-n-acetyl-d-glucosamine-dolichyl-phosphate n-acetyl-d-glucosaminephosphotransferase, dolichol-p-dependent n-acetylglucosamine-1-phosphate transferase, alg7 gene product (26 Jun 1999) |
| UDP-GlcNAc-undecaprenyl phosphate N-acetylglucosaminyl 1-phosphate transferase | <enzyme> Catalyses transfer of n-acetylglucosamine 1-phosphate from udp-glcnac to undecaprenyl phosphate Registry number: EC 2.7.8.- Synonym: glcnac-p-p-und synthase, gpt enzyme (26 Jun 1999) |
| alternative oxidase pathway | Pathway of mitochondrial electron transport in higher plants, particularly in fruits and seeds, that does not involve cytochrome oxidase and thus is resistant to cyanide. (18 Nov 1997) |
| alternative pathway | See: complement activation. (18 Nov 1997) |
| anabolic pathway | <biochemistry> A reaction or series of reactions in a metabolic pathway that synthesise complex molecules from simpler ones, usually requiring the input of energy. Compare: catabolic pathway. (09 Oct 1997) |
| auditory pathway | Neural paths and connections within the central nervous system, beginning at the organ of Corti's hair cells, continuing along the eighth nerve, and terminating at the auditory cortex. (05 Mar 2000) |
| GABA pathway | The pathway that ultimately converts 4-aminobutyrate to succinate; succinate is then converted to alpha-ketoglutarate, via the tricarboxylic acid cycle, which is then acted upon by glutamate dehydrogenase; glutamate is then decarboxylated to reform 4-aminobutyrate; an important pathway for those cells which make this neuroactive molecule. Synonym: GABA pathway. (05 Mar 2000) |
| Palade pathway | <cell biology> The routing of proteins from the site of their synthesis to the final cellular or secreted position. Several different pathways are known and others suspected. Glycosylation of the proteins may provide specific address labels for the proteins. (18 Nov 1997) |
| catabolic pathway | <biochemistry> A series of reactions in a metabolic pathway that break down complex compounds into simpler ones, usually releasing energy in the process. Compare: anabolic pathway. (16 Mar 1998) |
| pathway | 1. A collection of axons establishing a conduction route for nerve impulses from one group of nerve cells to another group or to an effector organ composed of muscle or gland cells. 2. Any sequence of chemical reactions leading from one compound to another; if taking place in living tissue, usually referred to as a biochemical pathway. (05 Mar 2000) |
| visual pathway | Neural paths and connections within the central nervous system, beginning with the retina and terminating in the occipital cortex. (05 Mar 2000) |
| perforant pathway | A pathway of fibres originating in the lateral part of the entorhinal area, perforating the subiculum of the hippocampus, and running into the stratum moleculare of the hippocampus, where these fibres synapse with others that go to the dentate gyrus. It is also called the perforating fasciculus. (12 Dec 1998) |
Synonyms : Pentose-Phosphate Pathway, Pentosephosphate Shunt, Hexose Monophosphate Shunts, Pathway, Pentose Phosphate, Pathway, Pentose-Phosphate, Pathway, Pentosephosphate, Pathways, Pentose Phosphate, Pathways, Pentose-Phosphate, Pathways, Pentosephosphate
| pentose phosphate pathway |
The penthose phosphate pathway (also known as the Hexose Monophosphate Shunt) is a process that serves to generate NADPH and the synthesis of pentose (5-carbon) sugars. There are two distinct phases in the pathway. The first is the oxidative phase, in which NADPH is generated, and the second is the non-oxidative synthesis of 5 carbon sugars. ...
Ãâó: en.wikipedia.org/wiki/Pentose_phosphate_pathway
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