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Pipecolic acid Sale

(Synonyms: 六氢吡啶-alpha-羧酸;哌啶-2-甲酸;呢可酸;2-哌啶甲酸) 目录号 : GC30872

Pipecolic acid (piperidine-2-carboxylic acid), a metabolite of lysine found in human physiological fluids such as urine, plasma and CSF, is an important regulator of immunity in plants and humans alike.

Pipecolic acid Chemical Structure

Cas No.:535-75-1

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10mM (in 1mL Water)
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100mg
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产品描述

Pipecolic acid (piperidine-2-carboxylic acid), a metabolite of lysine found in human physiological fluids such as urine, plasma and CSF, is an important regulator of immunity in plants and humans alike.

Chemical Properties

Cas No. 535-75-1 SDF
别名 六氢吡啶-alpha-羧酸;哌啶-2-甲酸;呢可酸;2-哌啶甲酸
Canonical SMILES O=C(O)C1CCCCN1
分子式 C6H11NO2 分子量 129.16
溶解度 Soluble in DMSO 储存条件 Store at -20°C
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1 mM 7.7423 mL 38.7117 mL 77.4234 mL
5 mM 1.5485 mL 7.7423 mL 15.4847 mL
10 mM 0.7742 mL 3.8712 mL 7.7423 mL
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Research Update

Pipecolic acid in microbes: biosynthetic routes and enzymes

Pipecolic acid is an important precursor of many useful microbial secondary metabolites. Pipecolic acid-derived moieties are often crucial for the biological activities of some microbial natural products with pharmaceutical applications. Understanding the biogenesis of pipecolic acid in microorganisms would be a significant step toward the mutasynthesis of novel analogs of choice. This review focuses on various microbial pathways and enzymes for pipecolic acid synthesis, especially those related to the origination of pipecolic acid moieties in secondary metabolites.

Pipecolic Acid Quantification Using Gas Chromatography-coupled Mass Spectrometry

Pipecolic acid (Pip), a non-proteinacious product of lysine catabolism, is an important regulator of immunity in plants and humans alike. For instance, Pip accumulation is associated with the genetic disorder Zellweger syndrome, chronic liver diseases, and pyridoxine-dependent epilepsy in humans. In plants, Pip accumulates upon pathogen infection and is required for plant defense. The aminotransferase ALD1 catalyzes biosynthesis of Pip precursor piperideine-2-carboxylic acid, which is converted to Pip via ornithine cyclodeaminase. A variety of methods are used to quantify Pip, and some of these involve use of expensive amino acid analysis kits. Here, we describe a simplified procedure for quantitative analysis of Pip from plant tissues. Pipecolic acid was extracted from leaf tissues along with an internal standard norvaline, derivatized with propyl chloroformate and analyzed by gas chromatography-coupled mass spectrometry using selective ion mode. This procedure is simple, economical, and efficient and does not involve isotopic internal standards or multiple-step derivatizations.

Pipecolic Acid, a Putative Mediator of the Encephalopathy of Cerebral Malaria and the Experimental Model of Cerebral Malaria

Background: We explored a metabolic etiology of cerebral malaria (CM) coma.
Methods: Plasma metabolites were compared between Malawian children with CM and mild Plasmodium falciparum malaria. A candidate molecule was further studied in animal models of malaria.
Results: Clinically abnormal concentrations of pipecolic acid (PA) were present in CM plasma, and nearly normal in mild malaria samples. PA is renally cleared and the elevated PA blood levels were associated with renal insufficiency, which was present only in CM subjects. Prior studies demonstrate that PA has neuromodulatory effects and is generated by malaria parasites. PA brain levels in Plasmodium berghei ANKA-infected animals in the experimental cerebral malaria (ECM) model inversely correlated with normal behavior and correlated with blood-brain barrier (BBB) permeability. Mice infected with malaria species that do not induce neurological abnormalities or manifest BBB permeability had elevated plasma PA levels similar to ECM plasma at 7 days postinfection; however, they had low PA levels in the brain compared to ECM mice brains at 7 days postinfection.
Conclusions: Our model suggests that malaria-generated PA induces coma in CM and in ECM. The role of BBB permeability and the mechanisms of PA neuromodulation in CM will require additional investigation.

Regulation of Salicylic Acid and N-Hydroxy-Pipecolic Acid in Systemic Acquired Resistance

In plants, salicylic acid (SA) is a central immune signal that is involved in both local and systemic acquired resistance (SAR). In addition to SA, several other chemical signals are also involved in SAR and these include N-hydroxy-pipecolic acid (NHP), a newly discovered plant metabolite that plays a crucial role in SAR. Recent discoveries have led to a better understanding of the biosynthesis of SA and NHP and their signaling during plant defense responses. Here, I review the recent progress in role of SA and NHP in SAR. In addition, I discuss how these signals cooperate with other SAR-inducing chemicals to regulate SAR.

Enhancement of l-Pipecolic Acid Production by Dynamic Control of Substrates and Multiple Copies of the pipA Gene in the Escherichia coli Genome

l-Pipecolic acid is an important rigid cyclic nonprotein amino acid, which is obtained through the conversion of l-lysine catalyzed by l-lysine cyclodeaminase (LCD). To directly produce l-pipecolic acid from glucose by microbial fermentation, in this study, a recombinant Escherichia coli strain with high efficiency of l-pipecolic acid production was constructed. This study involves the dynamic regulation of the substrate concentration and the expression level of the l-lysine cyclodeaminase-coding gene pipA. In terms of substrate concentration, we adopted the l-lysine riboswitch to dynamically regulate the expression of lysP and lysO genes. As a result, the l-pipecolic acid yield was increased about 1.8-fold as compared with the control. In addition, we used chemically inducible chromosomal evolution (CIChE) to realize the presence of multiple copies of the pipA gene on the genome. The resultant E. coli strain XQ-11-4 produced 61 ± 3.4 g/L l-pipecolic acid with a productivity of 1.02 ± 0.06 g/(L·h) and a glucose conversion efficiency (α) of 29.6% in fermentation. This is the first report that discovered multiple copies of pipA gene expression on the genome that improves the efficiency of l-pipecolic acid production in an l-lysine high-producing strain, and these results give us new insight for constructing the other valuable biochemicals derived from l-lysine.