L -Arginine.hydrochloride

Very pure preparations are obtained by treatment of L-aspartic acid loaded strong basic anion-exchange resins with an aqueous solution of L-arginine hydrochloride. 

Citrulline is obtained as a result of a reaction of L-arginine hydrochloride with sodium hydroxide, copper oxide and hydrogen sulfide. 

LAMBIO. Laminarabinose hydrate 0-) -D-glucopyranosyl-( 1 -3)-)S-D-glucopyranose hydrate [C12H22O1 j, 0.19(H2O)]. Thkeda H, Yasuoka N, Kasai N (1977) Carbohydr Res 53 137 LARGIN. L-Arginine hydrochloride (C6H1SN40, Cl-). Mazumdar SK, Venkatesan K, Mez H-C, Donohue J (1969) Z Kristallogr 130 328... 

Grover R, Zaccardelli D, Colice G, et al. An open-label dose escalation study of the nitric oxide synthase inhibitor N(G)-methyl-L-arginine hydrochloride (546C88), in patients with septic shock. Crit Care Med 1999 27(5) 913-922. 

A. Preculture preparation. A 250-mL Erlenmeyer flask containing 50 mL of mineral salt broth (MSB) (Note 1) with 0.2% L-arginine hydrochloride (L-arginine-HCI) and fitted with a cotton plug is sterilized (Note 2). In a laminar flow hood, a single colony of Pseudomonas putida 39/D (Pp 39/D) (Note 3) is selected from a fully grown plate (Notes 4, 5, 6) and transferred to the solution with a sterile loop taking care not to place the hand over the plate or flask. The flask is then placed in a benchtop orbital incubator shaker at 30°C and 200 rpm for 24 hr. 

L-Arginine hydrochloride L-Arginine, monohydrochloride (9) (1119-34-2) Chlorobenzene Benzene, chloro- (8,9) (108-90-7)... 

Sodium nitroprusside (SNP), hydrocortisone 21-hemisuccinate, desipra-mine hydrochloride, L-arginine hydrochloride, and w-conotoxin GVIA were purchased from Sigma Chemical Company (St. Louis, MO). Acid-washed alumina, sodium octyl sulfate, and catecholamine standards were purchased... 

L-Arginine hydrochloride Ascorbic acid Atropine Atropine sulfate Azacyclonol... 

Trace elements (stock solution) Biotin (stock solution) L-Arginine hydrochloride Adenine sulfate Nicotinamide... 

L-Argininamide hydrochloride allowed to react with the mixed anhydride prepared from N -carbobenzoxy-L-arginine hydrochloride, 1 mole triethylamine, and isobutyl chloroformate in dimethylformamide, and the product isolated as the dihydrochloride Na-carbobenzoxy-L-arginyl-L-argininamide dihydrochloride. Y 71. F. e. R. E. Plapinger et al., J. Org. Ghem. 30, 1781 (1965). 

Herbert-Pucheta et al. have shown that overlapping or solid-state NMR spectra from crystallographically different forms of L-arginine hydrochloride can be separated by exploiting differential proton T relaxation in conjunction-with cross-polarization. Dipolar and... 

Fig. 3 Formation of acetylornithinase in Escherichia coli under various regulatory conditions. Plots I and 2 represent formation of the enzyme in the wild-type strain W cultivated without or with added L-arginine hydrochloride (0.2 mg/ml), respectively. Plot 3 represents the formation of the enzyme in the argR mutant W2D (which has an incidental pro marker and is grown in the presence of L-proline, 0.1 mg/ml). Enzyme and total-protein concentrations are expressed per milliliter of extract (1 ml corresponding to 7.5 ml of original culture). The slopes of the plots are the so-called diflFerential rates of enzyme synthesis indicating partial repression (7), full repression (2), and genetic derepression (i).

Fig. 5. A Time course of the reduction in activity of acetylomithine S-transaminase by treatment of arginine-grown cells of the argR strain 961 of Escherichia cott with 0.4 M Mg + plus L-arginine hydrochloride (0.1 mg/ml), at 37° with aeration. The transaminase activity is determined [8] in extracts. B Restoration of acetylomithine 8-transaminase activity. An extract, prepared after treatment of cells wdth Mg + plus arginine for 2 hours, is kept at 0° and assayed at intervals. The activity of the extract is plotted as a percentage of that of an untreated-control extract (which remains approximately constant). From Leisinger et al. [67].

Fig. 6. A Formation of acetylornithine S-transaminase in strain 39A-23R3 of Escherichia coli under physiological derepression (growth on V -acetyl-L-omithine, 0.05 mg/ml), in the absence (open circles) or presence (solid circles) of streptomycin sulfate (6/x.g/ml). B Formation of acetylornithine S-transaminase in the same strain under repression (growth on L-arginine hydrochloride, 0.2 mg/ml), in the absence (open triangles) or presence (solid triangles) of streptomycin sulfate (6 /ng/ml). Cf. Vogel and Vogel [102].

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