CN
Search Within
P25485
应用筛选条件
关键词:'P25485'
显示 1-27 共 27 条结果 关于 "P25485" 范围 论文
Martijn A Hoeben et al.
Biotechnology and bioengineering, 93(4), 607-617 (2006-01-06)
The interfacial partitioning behavior of ampicillin and phenylglycine crystals in different two-phase systems has been investigated. The two-phase systems employed are water/dodecane, water/1-butanol, and water/pentane/methanol. By means of partition experiments and microscopic imaging, it has been shown that the mechanism
Hyung Min Kim et al.
The Journal of chemical physics, 128(18), 184313-184313 (2008-06-06)
We investigated the conformational structures of L-phenylglycine in the gas phase by photoionization and double resonance spectroscopy techniques as well as high-level ab initio calculations. The UV-UV and IR-UV double resonance spectroscopy suggested that there exists only one conformer that
Choedchai Saehuan et al.
Biochimica et biophysica acta, 1770(11), 1585-1592 (2007-10-06)
Following induction with D-phenylglycine both d-phenylglycine aminotransferase activity and benzoylformate decarboxylase activity were observed in cultures of Pseudomonas stutzeri ST-201. Induction with benzoylformate, on the other hand, induced only benzoylformate decarboxylase activity. Purification of the benzoylformate decarboxylase, followed by N-terminal
Caroline Haurena et al.
The Journal of organic chemistry, 75(8), 2645-2650 (2010-03-23)
A range of alpha-amino esters has been synthesized in good to high yields using a straightforward three-component reaction among preformed or in situ generated aromatic or benzylic organozinc reagents, primary or secondary amines, and ethyl glyoxylate. The procedure, which is
José Alixandre de Sousa Luis et al.
Molecules (Basel, Switzerland), 15(1), 128-137 (2010-01-30)
Hydantoins and their derivatives constitute a group of pharmaceutical compounds with anticonvulsant and antiarrhythmic properties, and are also used against diabetes. N-3 and C-5 substituted imidazolidines are examples of such products. As such, we have developed a synthesis of 2,4-dione
Shohei Tashiro et al.
Inorganic chemistry, 50(1), 4-6 (2010-12-01)
The optically active cobalt(III) complex with chiral cyclen, (2S,5S,8S,11S)-2,5,8,11-tetraethyl-1,4,7,10-tetraazacyclododecane, preferentially binds to D-phenylglycine (D-Phg) or D-t-leucine (D-t-Leu) rather than L-Phg or L-t-Leu, respectively, with 20% de in dimethyl sulfoxide at 293 K. Comparative studies on the crystal structures of cobalt(III)
Kathleen H Mortell et al.
Bioorganic & medicinal chemistry letters, 16(5), 1138-1141 (2005-12-29)
A series of alpha-amino acids were identified as ligands which compete with gabapentin for binding to the alpha(2)delta subunit of voltage-dependent Ca(2+) channels. Potent analogs were identified. Their activity in an in vivo pain assay is described.
Kuoxi Xu et al.
Chirality, 24(8), 646-651 (2012-05-24)
The triazine-based bisbinaphthyl crown ethers oxacalix[2]arene[2]bisbinaphthes R-1, R-2, R-3 and S-1, S-2, S-3 were synthesized. The interactions of these compounds with various α-aminocarboxylic acid anions were studied. The crown ethers were found to carry out highly enantioselective fluorescent recognition of
Katrin Groebke Zbinden et al.
Bioorganic & medicinal chemistry letters, 15(23), 5344-5352 (2005-10-11)
We describe the structure-based design and synthesis of highly potent, orally bioavailable tissue factor/factor VIIa inhibitors which interfere with the coagulation cascade by selective inhibition of the extrinsic pathway.
Pernilla Ortqvist et al.
Bioorganic & medicinal chemistry, 15(3), 1448-1474 (2006-11-23)
Molecular modeling and inhibitory potencies of tetrapeptide protease inhibitors of HCV NS3 proposed phenylglycine as a new promising P2 residue. The results suggest that phenylglycine might be capable of interacting with the NS3 (protease-helicase/NTPase) in ways not possible for the
Ulrike Müller et al.
Metabolic engineering, 8(3), 196-208 (2006-02-10)
D-phenylglycine (D-Phg) is an important side chain building block for semi-synthetic penicillins and cephalosporins such as ampicillin and cephalexin. To produce d-Phg ultimately from glucose, metabolic engineering was applied. Starting from phenylpyruvate, which is the direct precursor of L-phenylalanine, an
James J Lynch et al.
Pain, 125(1-2), 136-142 (2006-06-20)
Gabapentin and pregabalin have been demonstrated, both in animal pain models and clinically, to be effective analgesics particularly for the treatment of neuropathic pain. The precise mechanism of action for these two drugs is unknown, but they are generally believed
Harry G Brittain
Chirality, 25(1), 8-15 (2012-09-22)
The salt and stereoselective cocrystal phenomena associated with 2-phenylglycinol and 2-phenylglycine have been studied using X-ray powder diffraction and differential scanning calorimetry. The chiral identities of the free acids and their sodium salts, or the free bases and their chloride
Chun-Li Wang et al.
Journal of biomedical science, 17, 71-71 (2010-09-08)
L-dopa has been used for Parkinson's disease management for a long time. However, its wide variety in the rate and the extent of absorption remained challenge in designing suitable therapeutic regime. We report here a design of using D-phenylglycine to
Yvonne J Mast et al.
Journal of biotechnology, 155(1), 63-67 (2010-12-15)
Pristinamycin I (PI), a streptogramin type B antibiotic produced by Streptomyces pristinaespiralis, contains the aproteinogenic amino acid L-phenylglycine. Recent sequence analysis led to the identification of a set of putative phenylglycine biosynthetic genes. Successive inactivation of the individual genes resulted
Miklos Rabai et al.
Biorheology, 51(2-3), 159-170 (2014-06-06)
Sickle cell disease (SCD) is characterized by decreased erythrocyte deformability, microvessel occlusion and severe painful infarctions of different organs. Ektacytometry of SCD red blood cells (RBC) is made difficult by the presence of rigid, poorly-deformable irreversibly sickled cells (ISC) that
Argentina Ornelas et al.
Biochemistry, 52(1), 228-238 (2012-12-12)
The substrate specificities of two incorrectly annotated enzymes belonging to cog3964 from the amidohydrolase superfamily were determined. This group of enzymes are currently misannotated as either dihydroorotases or adenine deaminases. Atu3266 from Agrobacterium tumefaciens C58 and Oant2987 from Ochrobactrum anthropi
Hiroomi Nagata et al.
Organic & biomolecular chemistry, 2(23), 3470-3475 (2004-11-27)
To clarify the structural scaffold of (+)-18-crown-6 tetracarboxylic acid ((+)-18C6H4) for the optical resolution of a chiral amino acid, the crystal structures of its equimolar complexes with L- and D-isomers of tyrosine (Tyr), isoleucine (Ile), methionine (Met) and phenylglycine (PheG)
Antonella Caputo et al.
The Journal of pharmacology and experimental therapeutics, 330(3), 783-791 (2009-06-06)
Cystic fibrosis (CF) is caused by mutations in the cystic fibrosis transmembrane conductance regulator (CFTR) Cl(-) channel. The mutations G551D and G1349D, which affect the nucleotide-binding domains (NBDs) of CFTR protein, reduce channel activity. This defect can be corrected pharmacologically
Hyung Min Kim et al.
The Journal of chemical physics, 128(4), 041104-041104 (2008-02-06)
Photo-oxidation of amino acids is known to generate reactive protein radicals that lead to lethal disorders. We investigated photoionization of hydrated phenylglycine complexes in the gas phase and found that the excess internal energy from photoionization drives decarboxylation in competition
R S Kulkarni et al.
Hindustan antibiotics bulletin, 47-48(1-4), 41-44 (2008-08-14)
The parameters for complete hydrolysis of L-phenyl acetyl phenylglycine (L-PAPG) using immobilized penicillin G acylase (IMEPGA) were investigated. IMEPGA exhibited maximum activity at pH 8.5 and 50 degrees C. The apparent Km value observed was 10 mM. Quantitative hydrolysis (>97%)
Aaron D Mills et al.
Bioorganic & medicinal chemistry letters, 20(1), 87-91 (2009-12-04)
A developing therapy of cystic fibrosis caused by the DeltaF508 mutation in CFTR employs correction of defective CFTR chloride channel gating by a 'potentiator' and of defective CFTR protein folding by a 'corrector'. Based on SAR data for phenylglycine-type potentiators
M Eugenia Sanz et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 12(9), 2564-2570 (2005-12-17)
The neutral form of the unnatural amino acid phenylglycine was vaporized by laser ablation, and the presence of two conformers was detected in a supersonic expansion by Fourier transform microwave spectroscopy. Both conformers were unequivocally identified by comparison of their
Motohiro Akazome et al.
The Journal of organic chemistry, 75(3), 660-665 (2010-01-07)
In terms of chiral recognition for racemic aryl methyl sulfoxides in the solid state, three kinds of crystalline (S)-alkylglycyl-(S)-phenylglycines were examined as potential dipeptides host molecules. When (S)-alanyl-(S)-phenylglycines [(S,S)-Ala-Phg] crystallized with aryl methyl sulfoxides, the stereochemistry of preferentially included sulfoxides
Lu Wang et al.
Enzyme and microbial technology, 51(2), 107-112 (2012-06-06)
α-Amino acid ester hydrolases (AEHs) are enzymes of interest to the semi-synthesis of β-lactam antibiotics with α-amino, such as cephalexin and cefaclor. An undesired side reaction, the hydrolysis of α-amino acid ester, had hindered applications in antibiotics synthesis. Although the
Thomas R M Barends et al.
The Journal of biological chemistry, 281(9), 5804-5810 (2005-12-27)
The alpha-amino acid ester hydrolase (AEH) from Acetobacter turbidans is a bacterial enzyme catalyzing the hydrolysis and synthesis of beta-lactam antibiotics. The crystal structures of the native enzyme, both unliganded and in complex with the hydrolysis product D-phenylglycine are reported
Jian-Lian Chen et al.
Analytica chimica acta, 718, 130-137 (2012-02-07)
Three different approaches for immobilizing cross-linked chitosan molecules (CS-s) in sol-gel phases to form chiral OT-CEC capillaries were comparatively investigated in this study. To synthesize column I, a bare capillary was first silanized with triethoxysilane (TEOS) and then reacted with
1/1