| PC | avoirdupois weight [Lat. pondus civile]; packed cells; paper chromatography; paracortex; parent cell... |
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| PPP | pain perception profile; palatopharyngoplasty; palmoplantar pustulosis; pentose phosphate pathway; p... |
| PPC | pentose phosphate cycle; peripheral posterior curve; plasma prothrombin conversion; pneumopericardiu... |
| DDC | L-Dopa De-Carboxylase |
| PC | 1) Phosphatidyl Choline 2) Pyruvate Carboxylase |
| PPP | Pentose phosphate pathways |
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| ACC | Acetyl coenzyme A carboxylase |
| ACC | Acetyl-CoA carboxylase |
| ACCase | Acetyl-CoA carboxylase |
| RuBisCO | D-ribulose-1,5-bisphosphate carboxylase/oxygenase |
pentose nucleic acid (ÆæÅ佺 ÇÙ»ê
| 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 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) |
| 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) |
| acetone carboxylase | <enzyme> An ATP-dependent carboxylase Registry number: EC 4.1.1.- (26 Jun 1999) |
| acetyl-CoA carboxylase | <enzyme> A carboxylating enzyme that catalyses the conversion of ATP, acetyl-CoA, and hco3- to ADP, orthophosphate, and malonyl-CoA. It is a biotinyl-protein that also catalyses transcarboxylation. The plant enzyme also carboxylates propanoyl-CoA and butanoyl-CoA Chemical name: Acetyl-CoA:carbon-dioxide ligase (ADP-forming) Registry number: EC 6.4.1.2 (12 Dec 1998) |
| acetyl CoA carboxylase phosphatase | <enzyme> Phosphatase occurs in complex with the carboxylase Registry number: EC 3.1.3.- Synonym: acc-phosphatase, acetyl coenzyme a carboxylase phosphatase (26 Jun 1999) |
| acyl-CoA carboxylase | <enzyme> Catalyses carboxylation (ATP, mg ++, mco(3)-dependent) of acetyl-CoA, propionyl CoA, and butyryl CoA; from nematode turbatrix aceti Registry number: EC 6.4.1.- Synonym: acyl-coenzyme a carboxylase (26 Jun 1999) |
| biotin carboxylase | <enzyme> A subunit of acetyl-CoA carboxylase Registry number: EC 6.3.4.14 (26 Jun 1999) |
| carboxylase | 1. One of several carboxy-lyases, trivially named carboxylases or decarboxylases (EC subclass 4.1.1), catalyzing the addition of CO2 to all or part of another molecule to create an additional -COOH group (e.g., ribulose-1,5-bisphosphate carboxylase). 2. Obsolete name for pyruvate decarboxylase. (05 Mar 2000) |
| gamma-glutamyl carboxylase | <enzyme> An enzyme that catalyses the formation of gamma-carboxyglutamyl residues in many proteins, several appearing in the blood clotting cascade. (05 Mar 2000) |
| glutamyl carboxylase | <enzyme> Carboxylates glutamyl residues in a microsomal protein precursor of plasma prothrombin to form gamma-carboxyglutamic acid residues Registry number: EC 6.4.- Synonym: vitamin k-dependent carboxylase, glutamate carboxylase, vitamin k dependent carboxylase, vitamin k-dependent gamma-glutamyl carboxylase, k-dependent carboxylase, gamma-glutamyl carboxylase (26 Jun 1999) |
| PEP carboxylase | <enzyme> Enzyme responsible for the primary fixation of carbon dioxide in C4 plants. Carboxylates PEP phosphoenolpyruvate to give oxaloacetate. Also important in crassulacean acid metabolism, since it is responsible for carbon dioxide fixation in the dark. (18 Nov 1997) |
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