The present invention provides antibodies that bind to the IL-3 receptor alpha subunit alpha (Il3R) chain, and compositions comprising such antibodies. The present invention provides methods for inhibiting or reducing an IL3R-expressing cell population, the methods comprising contacting a population of IL3R-expressing cells (e.g., cancer cells and/or cancer stem cells) with an antibody that binds to IL3R. The present invention also provides antibody conjugates comprising an antibody that binds to an IL3R chain linked to a cytotoxic agent or anticellular agent and compositions comprising such conjugates. The present invention also provides methods for preventing, treating and/or managing a disorder associated with IL3R-expressing cells (e.g., a hematological cancer), the methods comprising administering to a subject in need thereof an antibody that binds to IL3R.

The present invention relates to a nucleic acid molecule encoding a fusion protein comprising a secretion signal comprising (i) a signal peptide sequence originating from a KRE1 protein or a signal peptide sequence originating from a SWP1 protein; and optionally (ii) an ?-mating factor (MF?) pro-sequence, and a protein of interest. The present invention further relates to a secretion signal as defined herein, an expression cassette comprising said nucleic acid molecule as well as recombinant eukaryotic host cells comprising said nucleic acid molecule or expression cassette. Further encompassed is a method of manufacturing a protein of interest in a eukaryotic host cell and a method of increasing the secretion of a protein of interest from a eukaryotic host cell. Further provided is the use of the secretion signal for increasing the secretion of a recombinant protein of interest from a eukaryotic host cell and the use of the recombinant host cell for manufacturing a recombinant protein of interest.

Provided herein are host cells capable of producing hybrid oligosaccharides and polysaccharides, wherein said hybrid oligosaccharides and polysaccharides do not comprise a hexose at the reducing end of their first repeat unit. Also provided herein are hybrid oligosaccharides or polysaccharides and bioconjugates which can be produced by the host cells described herein, wherein said bioconjugates comprise a carrier protein linked to a hybrid oligosaccharide or polysaccharide that does not comprise a hexose at the reducing end of its first repeat unit.

A method for producing an octaketide derived aromatic compound of interest (e.g. carminic acid), wherein the method comprises (I): heterologous expression of a recombinantly introduced Type III polyketide synthase (PKS) gene encoding an octaketide synthase (OKS) to obtain non-reduced octaketide in vivo within the recombinant host cell and (II): converting in vivo the non-reduced octaketide of step (I) into a C.sub.14-C.sub.34 aromatic compound of interest (e.g. carminic acid).

Reaction solutions are disclosed herein comprising water, sucrose and a glucosyltransferase enzyme that synthesizes poly alpha-1,3-glucan. The glucosyltransferase enzyme can synthesize insoluble glucan polymer having at least 50% alpha-1,3 glycosidic linkages and a number average degree of polymerization of at least 100. Further disclosed are methods of using such glucosyltransferase enzymes to produce insoluble poly alpha-1,3-glucan.

The invention provides methods for making steviol glycosides, including RebM and glycosylation products that are minor products in stevia leaves, and provides enzymes, encoding polynucleotides, and host cells for use in these methods. The invention provides engineered enzymes and engineered host cells for producing steviol glycosylation products, such as RebM, at high purity and/or yield. The invention further provides methods of making products containing steviol glycosides, such as RebM, including food products, beverages, oral care products, sweeteners, and flavoring products.

Methods of synthesizing chondroitin sulfate oligosaccharides are provided. Enzymatic schematic approaches to synthesizing structurally defined homogenous chondroitin sulfate oligosaccharides at high yields are provided. Synthetic chondroitin sulfate oligosaccharides ranging from 3-mers to 15-mers are provided.

Provided is a method for preparing rebaudioside N using an enzymatic method, comprising using rebaudioside A or rebaudioside J as a substrate, and making the substrate, in the presence of a glycosyl donor, react under the catalysis of a UDP-glycosyl-transferase and/or a UDP-glycosyltransferase-containing recombinant cell to generate rebaudioside N.

Described herein are novel methods of inserting nucleic acid sequences into host cells. Also described herein are genetically stable host cells comprising inserted nucleic acid sequences and methods of using such host cells in the generation of proteins.

The present invention provides engineered -glucosidase (BGL) enzymes, polypeptides having BGL activity, and polynucleotides encoding these enzymes, as well as vectors and host cells comprising these polynucleotides and polypeptides. The present invention also provides compositions comprising the enzymes, and methods of using the engineered BGL enzymes to make products with -glucose linkages.