Results 41 to 50 of about 15,695,648 (130)

Pipecolic Acid-Catalyzed Direct Asymmetric Mannich Reactions

, 2016
Mannich reactions between aldehydes and N-p-methoxyphenyl-protected α-imino ethyl glyoxylate have been performed using (S)-pipecolic acid as catalyst. The reactions give both syn- and anti-products (dr = 1.4−2:1) with high enantioselectivities (>98% ee).
Fujie Tanaka (2329276), Rajee Thayumanavan (2649142), Paul Ha-Yeon Cheong (1642720), K. N. Houk (1247004), Haile Zhang (2317696), Carlos F. Barbas (19478)   +5 more
core   +1 more source

Myosin-cross-reactive antigen (MCRA) protein from Bifidobacterium breve is a FAD-dependent fatty acid hydratase which has a function in stress protection [PDF]

, 2011
peer-reviewedBackground The aim of this study was to determine the catalytic activity and physiological role of myosin-cross-reactive antigen (MCRA) from Bifidobacterium breve NCIMB 702258. MCRA from B.
Cornelia Göbel, Liavonchanka, Alena, Fitzgerald, Gerald F, Gerald F Fitzgerald, STANTON, CATHERINE, Gobel, Cornelia, Eva Rosberg-Cody, Alena Liavonchanka, Feussner, Ivo, Goebel, Cornelia, O'Sullivan, Orla, O\u27Sullivan, Orla, Ivo Feussner, Ross, R. Paul, R Paul Ross, Rosberg-Cody, Eva, Fitzgerald, Gerald F., Catherine Stanton, Ross, R Paul, Orla O'Sullivan, R Ross, O'Sullivan, Orla   +21 more
core   +1 more source

A quest for long-distance signals: The epidermis as central regulator of pipecolic acid-associated systemic acquired resistance.

, 2021
AGD2-like DEFENSE RESPONSE PROTEIN 1 (ALD1) is an aminotransferase that is necessary for the biosynthesis of the immune-active non-protein amino acid pipecolic acid (Pip). Pip and its N-hydroxylated derivative, N-hydroxy-Pip (NHP), have been suggested as
Vlot, A.C.
core   +1 more source

The defense-inducing compound N -hydroxy pipecolic acid is a major substrate for the methyltransferase PbBSMT of Plasmodiophora brassicae

Journal of Experimental Botany
Abstract The clubroot pathogen Plasmodiophora brassicae has an effector protein that can methylate the plant defense compound salicylic acid (SA), and the protein sequence is highly conserved in different isolates worldwide. Sequencing the full-length cDNA of P.
Freia Benade, Sabine Jülke, Arne Schwelm, Cornelia Herrfurth, Stefanie König, Ivo Feussner, Jutta Ludwig-Müller   +6 more
openaire   +3 more sources

Bile Acid Induced Diarrhoea Pathophysiological and Clinical Aspects [PDF]

, 2008
A common cause for referral to gastroenterologists is chronic watery diarrhoea. Approximately 40% of these patients have idiopathic bile acid malabsorption (BAM) – a condition with unknown aetiology.
Bajor, Antal
core   +1 more source

Occurrence of pipecolic acid and pipecolic acid betaine (homostachydrine) in Citrus genus plants

, 2012
The presence of pipecolic acid and pipecolic acid betaine, also known as homostachydrine, is herein reported for the first time in Citrus genus plants. Homostachydrine was found in fruits, seeds, and leaves of orange, lemon, and bergamot (Citrus bergamia
Ferrari G., Servillo L., Castaldo D., Cautela D., Balestrieri M. L., Giovane A.   +5 more
core   +2 more sources

Effects of Exogenous Monosodium Glutamate on GABA Accumulation and Volatile/Nonvolatile Metabolites in Black Highland Barley

Food Science &Nutrition, Volume 14, Issue 8, August 2026.
Overview of MSG‐assisted GABA enrichment and associated changes in amino acid, fatty acid, and volatile metabolite profiles in germinated black highland barley. ABSTRACT γ‐Aminobutyric acid (GABA) is a functional amino acid with multiple health benefits; however, the mechanism of its enrichment in black highland barley, particularly through precursor ...
Xiaohang Lu, Nana Ma, Yuan Wang
wiley   +1 more source

A Non‐Host Pathogen Elicitor Induces Blast Resistance Mediated by OsNAC78‐Pir7b Module in Rice

Plant, Cell &Environment, Volume 49, Issue 8, Page 4894-4906, August 2026.
ABSTRACT Plants exhibit broad‐spectrum and persistent resistance induced by non‐host pathogens. Previous studies have found that syringolin A secreted by Pseudomonas syringae pv. syringae can activate the expression of defense‐related gene Pir7b in non‐host rice, but the underlying mechanism remains ambiguous.
Yunjie Xie, Yuling Lai, Xingqian Wu, Xiangzhen Yu, Jingwen Wei, Mengge Chen, Yongsheng Zhu, Liping Chen, Hongguang Xie, Qiuhua Cai, Huaan Xie, Jianfu Zhang   +11 more
wiley   +1 more source

Diastereoselective ritter reactions of chiral cyclic N-acyliminium ions: synthesis of pyrido- and pyrrolo [2,3-d] oxazoles and 4-hydroxy-5-N-acylaminopyrrolidines and 5-hydroxy-6-N-acylaminopiperidines

, 2008
Pyrido- and pyrrolo[2,3-d]oxazoles can be conveniently prepared in high yield from the Ritter reaction of nitriles and in situ generated chiral cyclic N-acyliminium ions.
Brian W Skelton (20144907), Arife Yazici (20117199), Ian R Morgan (20204730), Stephen Pyne (19586047)   +3 more
core   +1 more source

Vitamin‐Responsive Disorders: From Molecular Basis to Clinical Presentation and Therapy

Journal of Inherited Metabolic Disease, Volume 49, Issue 4, July 2026.
ABSTRACT Vitamin‐dependent cofactors are essential for numerous metabolic reactions, and defects affecting their uptake, conversion, utilisation, or regeneration constitute a heterogeneous group of inherited metabolic disorders (IMDs). Although dietary vitamin intake is sufficient to sustain coenzyme synthesis in healthy individuals, it is insufficient
Cécile Acquaviva, Yann Nadjar, Manuel Schiff, Christine Vianey‐Saban, Alain Fouilhoux, Jean‐François Benoist   +5 more
wiley   +1 more source