Pii: 1011-1344(95)07222-5
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Design of chimeric levansucrases with improved transglycosylation activity.
Fructansucrases (FSs), including levansucrases and inulosucrases, are enzymes that synthesize fructose polymers from sucrose by the direct transfer of the fructosyl moiety to a growing polymer chain. These enzymes, particularly the single domain fructansucrases, also possess an important hydrolytic activity, which may account for as much as 70 to 80% of substrate conversion, depending on reacti...
متن کامل[Maternal smoking and risk of hypertrophic infantile pyloric stenosis. 10 year population based cohort study].
http://bmj.com/cgi/content/full/325/7371/1011 Updated information and services can be found at: These include: References http://bmj.com/cgi/content/full/325/7371/1011#BIBL This article cites 5 articles, 1 of which can be accessed free at: Rapid responses http://bmj.com/cgi/eletter-submit/325/7371/1011 You can respond to this article at: http://bmj.com/cgi/content/full/325/7371/1011#responses a...
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Background: The key enzyme of estrogen biosynthesis, aromatase cytochrome P450,is encoded by the CYP19 gene.CYP19 plays an important role in the development,function,an regulation of the female reproduction cycle. Thus, it is the potential candidate gene affecting fertility performance in human. CYP19 transcripts are expressed mainly in the ovary,testes,breast,adipose tissue and brain. Tissue e...
متن کاملEvaluation and comparison of affinity chromatography and precipitation– based methods on purification of recombinant streptokinase
Background: Increase of protein purity is a serious challenge in the production of recombinant therapeutic proteins. For this purpose, several strategies have been employed to purify the target protein, among which the affinity chromatography-based purification methods and tagged proteins such as Ni-NTA are common and but costly. Therefore column-free purification techniques, such as using elas...
متن کاملU 1344 − 60 : a bright intermediate Seyfert galaxy at z = 0 . 012 with a relativistic Fe K α emission line ⋆
We present analysis of the optical and X-ray spectra of the low Galactic latitude bright (F2−10 = 3.6 × 10 erg cm s) source 4U 1344−60. On the basis of the optical data we propose to classify 4U 1344−60 as an intermediate type Seyfert galaxy and we measure a value of z = 0.012±0.001 for its redshift. From the XMM– Newton observation we find that the overall X–ray spectral shape of 4U 1344−60 is...
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