EurekaMag.com logo
+ Site Statistics
References:
48,253,228
Abstracts:
22,798,842
+ Resolve Accession
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
Submit PDF Full TextSubmit PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on Google+Follow on Google+
Follow on LinkedInFollow on LinkedIn

+ Translate

Regulation of Glutamine Transport in Escherichia coli


, : Regulation of Glutamine Transport in Escherichia coli. Journal of Bacteriology 122(3): 1032-1037

The formation of the high-affinity (Km equal to 0.2 muM) L-glutamine transport system of Escherichia coli strain 7 (Lin) appears to be subject to the same major control as the glutamine synthetase (EC 6.3.1.2) of this gram-negative organism. Culture of cells under nitrogen-limited conditions provides maximum derepression of both the glutamine synthetase and the glutamine transport system. Nutritional conditions providing a rich supply of ammonium salts or available sources of nitrogen, i.e., conditions which repress the formation of glutamine synthetase, provide three- and 20-fold repression, respectively, of the glutamine transport system. Culture of cells with glutamine supplements of 2 mM does not increase the repression of high-affinity glutamine transport system beyond the level observed in the absence of glutamine. A second kinetically distinct low-affinity component of glutamine. A second kinetically distinct low-affinity component of glutamine uptake is observed in cells cultured with a glutamine-depleted nutrient broth. This second component is associated with the appearance of glutaminase A (EC 3.5.1.2) and asparaginase I (EC 3.5.1.1), a periplasmic enzyme. Parallel changes were observed in the levels of the high-affinity glutamine transport system and the glutamine synthetase when cells were cultured with the carbon sources: glucose, glycerol, or succinate.

(PDF 0-2 workdays service)

Order PDF Full Text

Close
Close

Click here to order any other PDF Full Text


Accession: 006288143

PMID: 238938

PDF Full Text: Submit


Submit PDF Full Text

No spam - Every submission is manually reviewed

Due to poor quality, we do not accept files from Researchgate

Submitted PDF Full Texts will always be free for everyone
(We only charge for PDFs that we need to acquire)

Select a PDF file:
Close
Close

Other references

Oatman, Earl R., 1965: Predaceous mite controls two-spotted spider mite on strawberry. Biological control of the two-spotted spider mite Tetranychus urticae on strawberry leaves was obtained with mass releases of Phytoseiulus per-similis.

Nair, P. K. R., 2001: Do tropical homegardens elude science, or is it the other way around?. The terms multistrata systems and home gardens, which are used synonymously for the purpose of discussion in this paper, represent a group of seemingly sustainable and profitable agroforestry systems in the tropics. Although practiced for a long t...

Noble Donald C., 1968: Laminar viscous flowage structures in ash-flow tuffs from Gran Canaria, Canary Islands; a discussion. 'Gas flotation' resulting from compaction of pumice fragments is suggested as an additional mechanism by which flowage may take place in late stages of emplacement of the ash-flow tuffs of Nevada, apparently similar in essential respects...

Kishimoto, Yayoi; Suzuki, Tsutomus; Misawa, Miwa; Nagase, Hiroshi, 1996: Studies on drug dependence The role of kappa-opioid receptor in morphine-induced place preference under inflammations. Japanese Journal of Pharmacology 71(SUPPL 1): 89P

Morch O.C., 1989: Apparatus for inserting sticks into ice cream bodies us patent 4801063 january 31 1989. Official Gazette of the United States Patent & Trademark Office Patents 1098(5): 2274

Erhardt, Ingrid; Lischke, Antje; Sebald, Walter; Friedrich, Karlheinz, 1998: Constitutive association of JAK1 and STAT5 in pro-B cells is dissolved by interleukin-4-induced tyrosine phosphorylation of both proteins. The bipartite human interleukin-4 (IL-4) receptor was functionally expressed in murine pro-B cells and activated by human IL-4 to evoke intracellular signaling. Mutual association of signal transducing proteins within the receptor complex was then...

Bond, R.; Curtis, C. F.; Ferguson, E. A.; Mason, I. S.; Rest, J., 2000: An idiopathic facial dermatitis of Persian cats. The clinical and histopathological features of 13 Persian cats with chronic skin disease primarily affecting the face are described. Lesions were characterized by black material adherent to the skin and hair, accompanied by erythema and variable d...

Karol R. H.; Graf E. D.; Warner J.; Baker W. H.; Clough G. W.; Coulson J. H.; Gray R. E.; Lamberton B. A.; Polatty R. S.; Rioux R. S.; Welsh J. P.; Gebhart L. R. (chairperson), 1980: Preliminary glossary of terms relating to grouting. Journal of the Geotechnical Engineering Division 106(GT7): 803-815

Racinais, S.; Hue, O.; Blonc, S., 2004: Time-of-day effects on anaerobic muscular power in a moderately warm environment. This study evaluated the influence of a neutral vs. a moderately warm environment on the diurnal variation in muscular power. Twelve male subjects [27.0 (+/-4) years] performed two different jump tests [a squat jump (SJ) and a counter-movement jum...

Kern F.Jr; Everson G.T., 1988: Female sex steroid hormones and the pathogenesis of cholesterol gallstones. Gastroenterology 94(5 PART 2): A554