Zobrazeno 1 - 10
of 18
pro vyhledávání: '"C A, Frolik"'
Publikováno v:
Journal of Lipid Research, Vol 19, Iss 1, Pp 32-37 (1978)
A reverse phase high-pressure liquid chromatography system for rapid separation of various retinoids (vitamin A and its analogs) with little or no degradation is described. This method permits detection of as little as 22 pmol of retinoic acid. The p
Externí odkaz:
https://doaj.org/article/94e5bfa145144e7994d7a926873fb160
Publikováno v:
Journal of Biological Chemistry. 266:11779-11788
Isopenicillin N synthase (IPNS) from Cephalosporium acremonium contains 2 cysteine residues in positions 106 and 255 which are invariant in all IPNS sequences reported to date (Miller, J.R., and Ingolia, T.D. (1989) Mol. Microbiol. 3, 689-695). Altho
Publikováno v:
Cancer research. 51(16)
Differentiation of Tera-2 human embryonal carcinoma cells by exposure to 2.1 mM alpha-difluoromethylornithine resulted in changes in morphology, a decrease in growth rate, and changes in the expression of SSEA-1 differentiation antigen. While the bin
Autor:
D C, Williams, C A, Frolik
Publikováno v:
International review of cytology. 126
Biological calcification is a highly regulated process which occurs in diverse species of microorganisms, plants, and animals. Calcification provides tissues with structural rigidity to function in support and protection, supplies the organism with a
Publikováno v:
The Journal of biological chemistry. 253(20)
The in vitro metabolism of all-trans-[11,12-3h]retinoic acid to several more polar compounds has been demonstrated in a hamster tracheal organ culture system. The production of these metabolites is dependent on the presence of tissue. The physiologic
Publikováno v:
The Journal of biological chemistry. 264(36)
The nonheme iron oxidase isopenicillin N synthase catalyzes the formation of two new internal bonds in the tripeptide delta-(L-alpha-aminoadipoyl)-L-cysteinyl-D-valine (ACV) to form the beta-lactam and thiazolidine rings of isopenicillin N. Concomita
Publikováno v:
Federation proceedings. 42(9)
Transforming growth factors (TGFs) are a heterogeneous family of polypeptides that induce anchorage-independent growth in nonneoplastic anchorage-dependent cells. They have been found in many tissues, both neoplastic and nonneoplastic. All TGFs isola
Autor:
V J Chen, Stanley Gene Burgett, Paul L. Skatrud, Thomas D. Ingolia, Weigel Barbara Jean, Stephen Wyatt Queener, C A Frolik
Publikováno v:
Journal of bacteriology. 170(9)
beta-Lactam antibiotics such as penicillins and cephalosporins are synthesized by a wide variety of microbes, including procaryotes and eucaryotes. Isopenicillin N synthetase catalyzes a key reaction in the biosynthetic pathway of penicillins and cep
Publikováno v:
Cancer research. 38(10)
A separation procedure for retinoids based on reversephase high-pressure liquid chromatography with solvent mixtures of acetonitrile and water is described. The method may be applied to the screening of synthetic retinoids, which have potential for u
Publikováno v:
The Journal of biological chemistry. 259(17)
A procedure has been developed for the iodination of human transforming growth factor-beta (TGF-beta) with full retention of biological activity. Using the iodinated peptide, saturable receptors have been found for TGF-beta on normal rat kidney fibro