| pubmed-article:234430 | rdf:type | pubmed:Citation | lld:pubmed |
| pubmed-article:234430 | lifeskim:mentions | umls-concept:C0001128 | lld:lifeskim |
| pubmed-article:234430 | lifeskim:mentions | umls-concept:C0024485 | lld:lifeskim |
| pubmed-article:234430 | lifeskim:mentions | umls-concept:C0260061 | lld:lifeskim |
| pubmed-article:234430 | pubmed:issue | 2 | lld:pubmed |
| pubmed-article:234430 | pubmed:dateCreated | 1975-5-10 | lld:pubmed |
| pubmed-article:234430 | pubmed:abstractText | Pulsed Fourier transform proton magnetic resonance was used to study alpha-ketoglutaramic, and several other alpha-keto acids in aqueous solutions as a function of pH. Most alpha-keto acids were found to exist in equilibrium with the hydrate (gem-doil). The equilibrium position favors the nonhydrated alphs-keto acid at neutral pH, but at low pH values (below the pKa of the alpha-carboxylic acid group) the hydrate predominates. We found evidence that alpha-ketoglutaric acid exists in a third equilibrium form which is assigned to the lactol. alpha-Ketoglutaramic acid (the alpha-keto acid analog of glutamine) which is known to exist predominantly in a cyclic form at pH 7.0 was shown to exist as a cyclic structure over a wide pH range. However, the cyclic form is an equilibrium mixture of 2-pyrrolidone-5-hydroxy-5-carboxylic and 1-pyrrolin-2-one-5-carboxylic acids. | lld:pubmed |
| pubmed-article:234430 | pubmed:language | eng | lld:pubmed |
| pubmed-article:234430 | pubmed:journal | http://linkedlifedata.com/r... | lld:pubmed |
| pubmed-article:234430 | pubmed:citationSubset | IM | lld:pubmed |
| pubmed-article:234430 | pubmed:chemical | http://linkedlifedata.com/r... | lld:pubmed |
| pubmed-article:234430 | pubmed:chemical | http://linkedlifedata.com/r... | lld:pubmed |
| pubmed-article:234430 | pubmed:chemical | http://linkedlifedata.com/r... | lld:pubmed |
| pubmed-article:234430 | pubmed:chemical | http://linkedlifedata.com/r... | lld:pubmed |
| pubmed-article:234430 | pubmed:chemical | http://linkedlifedata.com/r... | lld:pubmed |
| pubmed-article:234430 | pubmed:chemical | http://linkedlifedata.com/r... | lld:pubmed |
| pubmed-article:234430 | pubmed:status | MEDLINE | lld:pubmed |
| pubmed-article:234430 | pubmed:month | Jan | lld:pubmed |
| pubmed-article:234430 | pubmed:issn | 0021-9258 | lld:pubmed |
| pubmed-article:234430 | pubmed:author | pubmed-author:RedfieldA GAG | lld:pubmed |
| pubmed-article:234430 | pubmed:author | pubmed-author:CopperA JAJ | lld:pubmed |
| pubmed-article:234430 | pubmed:issnType | Print | lld:pubmed |
| pubmed-article:234430 | pubmed:day | 25 | lld:pubmed |
| pubmed-article:234430 | pubmed:volume | 250 | lld:pubmed |
| pubmed-article:234430 | pubmed:owner | NLM | lld:pubmed |
| pubmed-article:234430 | pubmed:authorsComplete | Y | lld:pubmed |
| pubmed-article:234430 | pubmed:pagination | 527-32 | lld:pubmed |
| pubmed-article:234430 | pubmed:dateRevised | 2009-10-27 | lld:pubmed |
| pubmed-article:234430 | pubmed:meshHeading | pubmed-meshheading:234430-W... | lld:pubmed |
| pubmed-article:234430 | pubmed:meshHeading | pubmed-meshheading:234430-H... | lld:pubmed |
| pubmed-article:234430 | pubmed:meshHeading | pubmed-meshheading:234430-D... | lld:pubmed |
| pubmed-article:234430 | pubmed:meshHeading | pubmed-meshheading:234430-K... | lld:pubmed |
| pubmed-article:234430 | pubmed:meshHeading | pubmed-meshheading:234430-P... | lld:pubmed |
| pubmed-article:234430 | pubmed:meshHeading | pubmed-meshheading:234430-K... | lld:pubmed |
| pubmed-article:234430 | pubmed:meshHeading | pubmed-meshheading:234430-K... | lld:pubmed |
| pubmed-article:234430 | pubmed:meshHeading | pubmed-meshheading:234430-M... | lld:pubmed |
| pubmed-article:234430 | pubmed:meshHeading | pubmed-meshheading:234430-G... | lld:pubmed |
| pubmed-article:234430 | pubmed:meshHeading | pubmed-meshheading:234430-S... | lld:pubmed |
| pubmed-article:234430 | pubmed:meshHeading | pubmed-meshheading:234430-M... | lld:pubmed |
| pubmed-article:234430 | pubmed:year | 1975 | lld:pubmed |
| pubmed-article:234430 | pubmed:articleTitle | Proton magnetic resonance studies of alpha-keto acids. | lld:pubmed |
| pubmed-article:234430 | pubmed:publicationType | Journal Article | lld:pubmed |
| pubmed-article:234430 | pubmed:publicationType | Research Support, U.S. Gov't, P.H.S. | lld:pubmed |
| pubmed-article:234430 | pubmed:publicationType | Research Support, U.S. Gov't, Non-P.H.S. | lld:pubmed |
| http://linkedlifedata.com/r... | pubmed:referesTo | pubmed-article:234430 | lld:pubmed |
| http://linkedlifedata.com/r... | pubmed:referesTo | pubmed-article:234430 | lld:pubmed |
