نتایج جستجو برای: cho cell mutant

تعداد نتایج: 1770578  

2017
Frederick J Krambeck Sandra V Bennun Mikael R Andersen Michael J Betenbaugh

The Chinese hamster ovary (CHO) cell is the gold standard for manufacturing of glycosylated recombinant proteins for production of biotherapeutics. The similarity of its glycosylation patterns to the human versions enable the products of this cell line favorable pharmacokinetic properties and lower likelihood of causing immunogenic responses. Because glycan structures are the product of the con...

Journal: :Journal of experimental botany 2012
Fulgencio Alatorre-Cobos Alfredo Cruz-Ramírez Celine A Hayden Claudia-Anahí Pérez-Torres Anne-Laure Chauvin Enrique Ibarra-Laclette Erika Alva-Cortés Richard A Jorgensen Luis Herrera-Estrella

In Arabidopsis thaliana, XIPOTL1 encodes a phosphoethanolamine N-methyltransferase with a central role in phosphatidylcholine biosynthesis via the methylation pathway. To gain further insights into the mechanisms that regulate XIPOTL1 expression, the effect of upstream open reading frame 30 (uORF30) on the translation of the major ORF (mORF) in the presence or absence of endogenous choline (Cho...

Journal: :Nature biotechnology 2013
Nathan E Lewis Xin Liu Yuxiang Li Harish Nagarajan George Yerganian Edward O'Brien Aarash Bordbar Anne M Roth Jeffrey Rosenbloom Chao Bian Min Xie Wenbin Chen Ning Li Deniz Baycin-Hizal Haythem Latif Jochen Forster Michael J Betenbaugh Iman Famili Xun Xu Jun Wang Bernhard O Palsson

Chinese hamster ovary (CHO) cells, first isolated in 1957, are the preferred production host for many therapeutic proteins. Although genetic heterogeneity among CHO cell lines has been well documented, a systematic, nucleotide-resolution characterization of their genotypic differences has been stymied by the lack of a unifying genomic resource for CHO cells. Here we report a 2.4-Gb draft genome...

Journal: :Genetics 2007
Gregory P Mullen Eleanor A Mathews Mai H Vu Jerrod W Hunter Dennis L Frisby Angie Duke Kiely Grundahl Jamie D Osborne John A Crowell James B Rand

The cho-1 gene in Caenorhabditis elegans encodes a high-affinity plasma-membrane choline transporter believed to be rate limiting for acetylcholine (ACh) synthesis in cholinergic nerve terminals. We found that CHO-1 is expressed in most, but not all cholinergic neurons in C. elegans. cho-1 null mutants are viable and exhibit mild deficits in cholinergic behavior; they are slightly resistant to ...

Journal: :The Journal of biological chemistry 1976
C J Ingles A Guialis J Lam L Siminovitch

A number of mutant Chinese hamster ovary (CHO) cell lines resistant to the cytotoxic action of alpha-amanitin have been isolated. The alpha-amanitin sensitivity of the different mutant cell lines varied widely, but correlated well with the alpha-amanitin sensitivity of the RNA polymerase II activity in each of these mutant cell lines. In comparison with the RNA polymerase II of wild-type cells,...

2002
LOUIS SIMINOVITCH

A number of mutant Chinese hamster ovary (CHO) cell lines resistant to the cytotoxic action of n-amanitin have been isolated. The a-amanitin sensitivity of the different mutant cell lines varied widely, but correlated well with the au-amanitin sensitivity of the RNA polymerase II activity in each of these mutant cell lines. In comparison with the RNA polymerase II of wild-type cells, three muta...

2014
Yong Gu Waisin Lee Jiangang Shen

Site-2 protease (S2P) is a membrane-embedded protease that site-specifically cleaves intramembrane transcription factors, a necessary step for their maturation. S2P is well known to regulate cholesterol biosynthesis and endoplasmic reticulum stress in mammalian cells. In this study, we hypothesized that S2P could be responsible for the regulation of cellular oxidative injury under oxidative str...

Background: Recombination Activating Genes (RAG) mutated embryonic stem cells are (ES) cells which are unable to perform V (D) J recombination. These cells can be used for generation of immunodeficient mouse. Creating biallelic mutations by CRISPR/Cas9 genome editing has emerged as a powerful technique to generate site-specific mutations in different sequences. Ob...

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