Amino Acids

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Engineering of cysteine and methionine biosynthesis in potato
Amino Acids - Tập 22 - Trang 259-278 - 2002
V. Nikiforova, S. Kempa, M. Zeh, S. Maimann, O. Kreft, A. P. Casazza, K. Riedel, E. Tauberger, R. Hoefgen, H. Hesse
Methionine and cysteine, two amino acids containing reduced sulfur, are not only an important substrate of protein biosynthesis but are also precursors of various other metabolites such as glutathione, phytochelatines, S-adenosylmethionine, ethylene, polyamines, biotin, and are involved as methyl group donor in numerous cellular processes. While methionine is an essential amino acid due to an ina...... hiện toàn bộ
Evaluation of D-amino acid levels in human urine and in commercial L-amino acid samples
Amino Acids - Tập 1 Số 1 - Trang 97-106 - 1991
D. W. Armstrong, Jo Dee Duncan, S. H. Lee
Wards in the keyway: amino acids with anomalous pK as in calycins
Amino Acids - Tập 43 - Trang 2457-2468 - 2012
Ivano Eberini, Cristina Sensi, Michele Bovi, Henriette Molinari, Monica Galliano, Franco Bonomi, Stefania Iametti, Elisabetta Gianazza
As a follow-up to our recent analysis of the electrostatics of bovine β-lactoglobulin (Eberini et al. in Amino Acids 42:2019–2030, 2011), we investigated whether the occurrence in the native structure of calycins—the superfamily to which β-lactoglobulin belongs—of amino acids with anomalous pK as is an infrequent or, on the contrary, a common occurrence, and whether or not a genera...... hiện toàn bộ
In situ fabrication and electrochemical behavior of amino acid polyoxometalate nanoparticles-embedded microcapsules
Amino Acids - Tập 39 - Trang 1363-1367 - 2010
Dawei Fan, Yongming Deng, Jingcheng Hao
Amino acid polyoxometalate nanoparticles-embedded microcapsules were in situ fabricated by layer-by-layer (LbL) self-assembly method [polyoxometalate, H3PMo12O40·nH2O (PMo12); amino acid, glycine (Gly)]. The morphology of the obtained microcapsules was characterized by transmission electron microscopy and scanning electron microscopy. The electrochemical behavior of the amino acid polyoxometalate ...... hiện toàn bộ
The effect of ovariectomy on phenylalanine and tyrosine metabolism
Amino Acids - Tập 7 - Trang 57-66 - 1994
I. Presch, G. Lubec
Although the regulatory activity of steroid hormones on amino acid metabolism has been described, no information is published on the effect of ovariectomy. We studied the influence of ovariectomy in Wistar rats determining the amino acids phenylalanine and tyrosine in liver, kidney, plasma and urine. 32 animals were used in the study, 12 animals were sham operated, 9 animals were ovariectomized an...... hiện toàn bộ
Activation of the hexosamine biosynthesis pathway and protein O-GlcNAcylation modulate hypertrophic and cell signaling pathways in cardiomyocytes from diabetic mice
Amino Acids - Tập 40 - Trang 819-828 - 2010
Susan A. Marsh, Louis J. Dell’Italia, John C. Chatham
Patients with diabetes have a much greater risk of developing heart failure than non-diabetic patients, particularly in response to an additional hemodynamic stress such as hypertension or infarction. Previous studies have shown that increased glucose metabolism via the hexosamine biosynthesis pathway (HBP) and associated increase in O-linked-β-N-acetylglucosamine (O-GlcNAc) levels on proteins con...... hiện toàn bộ
Bidirectional fluxes of spermine across the mitochondrial membrane
Amino Acids - Tập 46 - Trang 671-679 - 2013
Silvia Grancara, Pamela Martinis, Sabrina Manente, Aida Nelly García-Argáez, Giampiero Tempera, Marcantonio Bragadin, Lisa Dalla Via, Enzo Agostinelli, Antonio Toninello
The polyamine spermine is transported into the mitochondrial matrix by an electrophoretic mechanism having as driving force the negative electrical membrane potential (ΔΨ). The presence of phosphate increases spermine uptake by reducing ΔpH and enhancing ΔΨ. The transport system is a specific uniporter constituted by a protein channel exhibiting two asymmetric energy barriers with the spermine bin...... hiện toàn bộ
Protein metabolism during an acute phase response in chickens
Amino Acids - Tập 22 Số 1 - Trang 15-26 - 2002
Barnes, D. M., Song, Z., Klasing, K. C., Bottje, W.
Fractional rates of liver, muscle, plasma and acute phase portein synthesis were measured in chickens injected with saline or E. coli lipopolysaccharide (LPS). Male Single Comb White Leghorns were infused with a primed constant infusion of 15N-L-methionine and 2H5-L-phenylalanine into the portal vein for 2 h. Changes in plasma amino acid enrichment were similar for both amino acids reaching an app...... hiện toàn bộ
Tác động kích thích của glutamate lên các thụ thể ống ampullar của ếch Dịch bởi AI
Amino Acids - Tập 9 - Trang 265-273 - 1995
I. Prigioni, G. Russo
Hành động của glutamate trên các thụ thể ampullar của ếch đã được điều tra nhằm đánh giá vai trò tiềm năng của axit amin kích thích này như một chất truyền dẫn cảm giác trong hệ thống tế bào lông. Các ghi chép trong tế bào từ các đơn vị cảm giác đơn lẻ trong mê đạo bị tách biệt cho thấy glutamate và các chất chủ vận thụ thể glutamate, như N-methyl-D-aspartic acid, quisqualic acid và kainic acid, l...... hiện toàn bộ
Synthesis of (E)-?-hydroxy-?,?-dehydro?-amino acids, a new class of vinylglycines by the rearrangement of? acetoxyallylglycine derivatives
Amino Acids - - 1995
Mitsunori Kirihata, Masashi Fukuari, Tatsuya Izukawa, Itsuo Ichimoto
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