摘要:
The present invention relates to a recombinant process for the production of truncated or mutated dextransucrases while conserving the enzymatic activity or their specificity in the synthesis of the α-1,6 bonds. The present invention relates to nucleic acid sequences of truncated or mutated dextransucrases, vectors containing the nucleic acid sequences and host cells transformed by sequences encoding truncated or mutated dextransucrases. In another aspect, the invention concerns a method for producing, in a recombinant manner, truncated or mutated dextransucrases which conserve their enzymatic activity or which conserve their specificity in the synthesis of α-1,6 bonds and can produce, from saccharose, dextrans with high molar mass and modified rheological properties compared with the properties of dextran obtained with the native enzyme and isomalto-oligosaccharides with a controlled molar mass and dextrans. The dextrans and isomalto-oligosaccharides of the invention can be used namely as texturing agents or as prebiotics.
摘要:
The invention provides nucleic acids comprising a nucleotide sequence encoding programmed death ligand-1 (PD-L1) and a nucleotide sequence encoding a fusion protein comprising thymidylate kinase (TMPK) or a variant thereof and a cell surface marker or a variant thereof. Recombinant expression vectors, host cells, populations of cells, pharmaceutical compositions, and kits relating to the nucleic acids are disclosed. Methods of treating or preventing a disease in a host and methods of suppressing an immune system in a host are also disclosed.
摘要:
TNF-α binding proteins, including chimeric, CDR-grafted, and humanized antibodies that bind TNF-α are provided. Binding proteins have high affinity for TNF-α and neutralize TNF-α activity. A binding protein can be a full-length antibody or a TNF-α-binding portion thereof. Methods of making and methods of using the binding proteins are also described. The TNF-α binding proteins are useful for detecting TNF-α and for inhibiting TNF-α activity, including in a human subject suffering from a disease or disorder in which TNF-α activity is detrimental.
摘要:
The present invention relates to a method for the production of unsaturated fatty acids with at least two double bonds. The invention furthermore relates to the use of nucleic acid sequences SEQ ID NO: 1, 3, 5, 9, and 11 encoding polypeptides having desaturase or elongase activity in the method and for generating a transgenic organism, preferably a transgenic plant or a transgenic microorganism, with an increased content of fatty acids, oils or lipids with unsaturated C18-, C20-, or C22-fatty acids, and to their homologs or derivatives, to gene constructs encompassing these genes, and to their use alone or in combination with biosynthesis genes of polyunsaturated fatty acids. The invention also relates to multiexpression cassettes for seed-specific expression, and to vectors or organisms which encompass a desaturase gene alone or in combination with further desaturases and/or elongase genes or homologs using said expression cassettes.
摘要翻译:本发明涉及生产具有至少两个双键的不饱和脂肪酸的方法。 本发明还涉及在该方法中编码具有去饱和酶或延长酶活性的多肽的核酸序列SEQ ID NO:1,3,5,9和11的用途,并用于产生转基因生物,优选转基因植物或转基因微生物 ,具有不饱和C18-,C20-或C22-脂肪酸的脂肪酸,油脂或脂质以及它们的同系物或衍生物,包括这些基因的基因构建物的含量增加,以及它们单独使用或与生物合成相结合 多不饱和脂肪酸的基因。 本发明还涉及用于种子特异性表达的多表达盒以及包含去饱和酶基因单独或与进一步去饱和酶和/或延伸酶基因或使用所述表达盒的同源物组合的载体或生物体。
摘要:
The present invention relates to engineered multivalent and multispecific binding proteins, methods of making, and specifically to their uses in the prevention, diagnosis, and/or treatment of disease.
摘要:
Disclosed are chimeric polyunsaturated fatty acid (PUFA) polyketide synthase (PKS) proteins and chimeric PUFA PKS systems, including chimeric PUFA PKS proteins and systems derived from Schizochytrium and Thraustochytrium. Disclosed are nucleic acids and proteins encoding such chimeric PUFA PKS proteins and systems, genetically modified organisms comprising such chimeric PUFA PKS proteins and systems, and methods of making and using such chimeric PUFA PKS proteins and systems.
摘要:
Yeast includes an introduced gene coding a Homo sapiens- or frog-derived L-lactate dehydrogenase. It is possible to produce lactic acid, which has a variety of applications, efficiently and more cost-effectively by using the yeast and the method of producing lactic acid by using the yeast.
摘要:
Genetically manipulated cells, lysates of such cells, systems, and methods of use thereof are provided, where one or more enzymes in a pathway of interest are genetically modified to incorporate a peptide sequence that provides for relocation of the protein, e.g., to the periplasm, so as to sequester the enzyme, and where the enzyme controls flux in the pathway of interest.
摘要:
The invention pertains to a method for preparing cells that can be used as biocatalysts by inducing in them a growth-decoupled state, in which interferase inhibits the expression of genes except the ones that code for the pathway enzymes of interest. mRNAs that code for interferase-resistant products are overexpressed in the background of a metabolically-frozen cell. Enzymes that compete for a substrate or product of the pathway of interest may be altered such that the enzyme is sensitive to a site-specific protease, which protease is inducible in the host cell.
摘要:
Isolated binding proteins, e.g., antibodies or antigen binding portions thereof, which bind to tumor necrosis factor-alpha (TNF-α), e.g., human TNF-α, and related antibody-based compositions and molecules are disclosed. Also disclosed are pharmaceutical compositions comprising the antibodies, as well as therapeutic and diagnostic methods for using the antibodies.