pubmed-article:3280553 | rdf:type | pubmed:Citation | lld:pubmed |
pubmed-article:3280553 | lifeskim:mentions | umls-concept:C0038411 | lld:lifeskim |
pubmed-article:3280553 | lifeskim:mentions | umls-concept:C0443286 | lld:lifeskim |
pubmed-article:3280553 | lifeskim:mentions | umls-concept:C1705849 | lld:lifeskim |
pubmed-article:3280553 | lifeskim:mentions | umls-concept:C0441712 | lld:lifeskim |
pubmed-article:3280553 | lifeskim:mentions | umls-concept:C0871161 | lld:lifeskim |
pubmed-article:3280553 | lifeskim:mentions | umls-concept:C1293107 | lld:lifeskim |
pubmed-article:3280553 | pubmed:issue | 4 | lld:pubmed |
pubmed-article:3280553 | pubmed:dateCreated | 1988-5-12 | lld:pubmed |
pubmed-article:3280553 | pubmed:abstractText | Expulsion of preaccumulated methyl-beta-D-thiogalactoside-phosphate (TMG-P) from Streptococcus pyogenes is a two-step process comprising intracellular dephosphorylation of TMG-P followed by rapid efflux of the intracellularly formed free galactoside (J. Reizer, M.J. Novotny, C. Panos, and M.H. Saier, Jr., J. Bacteriol. 156:354-361, 1983). The present study identifies the mechanism and the order and characterizes the temperature dependency of the efflux step. Unidirectional efflux of the intracellularly formed [14C]TMG was only slightly affected when measured in the presence of unlabeled TMG (25 to 400 mM) in the extracellular medium. In contrast, pronounced inhibition of net efflux was observed in the presence of relatively low concentrations (1 to 16 mM) of extracellular [14C]TMG. Since net efflux was nearly arrested when the external concentration of [14C]TMG approached the intracellular concentration of this sugar, we propose that a facilitated diffusion mechanism is responsible for efflux and equilibration of TMG between the intracellular and extracellular milieus. The exit reaction was markedly dependent upon temperature, exhibited a high energy of activation (23 kcal [ca. 96 kJ] per mol), and followed first-order kinetics, indicating that the permease mediating this efflux was not saturated under the conditions of expulsion employed. | lld:pubmed |
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pubmed-article:3280553 | pubmed:language | eng | lld:pubmed |
pubmed-article:3280553 | pubmed:journal | http://linkedlifedata.com/r... | lld:pubmed |
pubmed-article:3280553 | pubmed:citationSubset | IM | lld:pubmed |
pubmed-article:3280553 | pubmed:chemical | http://linkedlifedata.com/r... | lld:pubmed |
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pubmed-article:3280553 | pubmed:chemical | http://linkedlifedata.com/r... | lld:pubmed |
pubmed-article:3280553 | pubmed:status | MEDLINE | lld:pubmed |
pubmed-article:3280553 | pubmed:month | Apr | lld:pubmed |
pubmed-article:3280553 | pubmed:issn | 0021-9193 | lld:pubmed |
pubmed-article:3280553 | pubmed:author | pubmed-author:SaierM HMHJr | lld:pubmed |
pubmed-article:3280553 | pubmed:author | pubmed-author:SutrinaS LSL | lld:pubmed |
pubmed-article:3280553 | pubmed:author | pubmed-author:ReizerJJ | lld:pubmed |
pubmed-article:3280553 | pubmed:issnType | Print | lld:pubmed |
pubmed-article:3280553 | pubmed:volume | 170 | lld:pubmed |
pubmed-article:3280553 | pubmed:owner | NLM | lld:pubmed |
pubmed-article:3280553 | pubmed:authorsComplete | Y | lld:pubmed |
pubmed-article:3280553 | pubmed:pagination | 1874-7 | lld:pubmed |
pubmed-article:3280553 | pubmed:dateRevised | 2009-11-18 | lld:pubmed |
pubmed-article:3280553 | pubmed:meshHeading | pubmed-meshheading:3280553-... | lld:pubmed |
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pubmed-article:3280553 | pubmed:meshHeading | pubmed-meshheading:3280553-... | lld:pubmed |
pubmed-article:3280553 | pubmed:year | 1988 | lld:pubmed |
pubmed-article:3280553 | pubmed:articleTitle | Inducer expulsion in Streptococcus pyogenes: properties and mechanism of the efflux reaction. | lld:pubmed |
pubmed-article:3280553 | pubmed:affiliation | Department of Biology, University of California, San Diego, La Jolla 92093. | lld:pubmed |
pubmed-article:3280553 | pubmed:publicationType | Journal Article | lld:pubmed |
pubmed-article:3280553 | pubmed:publicationType | Research Support, U.S. Gov't, P.H.S. | lld:pubmed |
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