Abstract: Provided herein are humanized CD25 antibodies, methods of making, and use thereof. In some embodiments, the CD25 antibodies are useful for the treatment of cancer or autoimmune diseases.

Abstract: Provided herein engineered polypeptides that comprise a combination of spatially-associated topological constraints, wherein at least one constraint is derived from a CD25 reference target, and methods of selecting said engineered polypeptides. Further provided are methods of using the engineered polypeptides, including as positive and/or negative selection molecules in methods of screening a library of binding molecules such as antibodies. Further provided herein are CD25 antibodies selected using these engineered polypeptides.

Abstract: Provided herein are antibodies that specifically bind to CD25. Also provided herein are methods of making the antibodies described, and methods of use thereof. For example, the CD25 antibodies may be used therapeutically to treat cancer or autoimmune diseases, and in certain aspects: disrupt the trimerization of the beta, gamma, and alpha (CD25) chains of the IL-2 receptor, bind to a different epitope than to which Daclizumab or Baciliximab bind, exhibit a higher affinity of binding to CD25 at a pH lower than 7.4, when compared to the affinity of binding to CD25 at a pH of 7.4, and/or exhibit a higher affinity of binding to CD25 at a pH of about 6.5.

Abstract: Materials and methods for using polypeptides containing fragments and variants of the antibody(ies) or portion(s) thereof that bind CD25 to treat cancer alone or in combination with other anti-neoplastic agents.

Abstract: Materials and methods for in vivo de-glycosylation of recombinant N-glycosylated proteins by co-expression with bacterial PNGase F (Peptide: N-glycosidase F) in plants, using a transient expression system are described. Methods are described which, for example, produce recombinant proteins of interest in plants in a non-glycosylated form. A method of expressing active bacterial PNGase F in plants also is provided.

Abstract: Provided herein are methods for design of engineered polypeptides that recapitulate molecular structure features of a predetermined portion of a reference protein structure, e.g., an antibody epitope or a protein binding site. A Machine Learning (ML) model is trained by labeling blueprint records generated from a reference target structure with scores calculated based on computational protein modeling of polypeptide structures generated by the blueprint records. The method may include training an ML model based on a first set of blueprint records, or representations thereof, and a first set of scores, each blueprint record from the first set of blueprint records associated with each score from the first set of scores. After the training, the machine learning model may be executed to generate a second set of blueprint records. A set of engineered polypeptides are then generated based on the second set of blueprint records.

Abstract: This document provides materials and methods for producing endostatin fusion polypeptides having anti-fibrotic activity. For example, provided herein are fusion polypeptides having an IgG Fc domain and a portion of human endostatin that can form high molecular weight multimers, as well as methods for producing such fusion polypeptides in plant cells.

Abstract: The present invention provides trans-complementation systems for expressing gene products in plants. In general, the invention provides systems including a carrier vector and a producer vector, both based on plant viruses. The producer vector is defective for at least one function needed for successful systemic infection of a plant, e.g., replication, cell-to-cell movement, or long distance movement. The carrier vector supplies the missing function in trans. Certain producer vectors lack a functional coat protein coding sequence, in which case the corresponding producer vector supplies coat protein in trans. The invention also provides novel plant viral vectors and methods of use, e.g., to produce polypeptides or active RNAs in plants.

Abstract: The present invention provides trans-complementation systems for expressing gene products in plants. In general, the invention provides systems including a carrier vector and a producer vector, both based on plant viruses. The producer vector is defective for at least one function needed for successful systemic infection of a plant, e.g., replication, cell-to-cell movement, or long distance movement. The carrier vector supplies the missing function in trans. Certain producer vectors lack a functional coat protein coding sequence, in which case the corresponding producer vector supplies coat protein in trans. The invention also provides novel plant viral vectors and methods of use, e.g., to produce polypeptides or active RNAs in plants.

Abstract: Recombinant carrier molecules having amino acid sequences from thermostable enzymes and methods of use for expression, recovery and delivery of foreign sequences (peptides and polypeptides) produced in different systems (bacteria, yeast, DNA, cell cultures such as mammalian, plant, insect cell cultures, protoplast and whole plants in vitro or in vivo are provided. The recombinant carrier molecule using sequences from lichenase B (Lic B) were also made and used as part of carrier protein to express, recover and deliver a variety of target polypeptides of interest.

Abstract: The present invention provides trans-complementation systems for expressing gene products in plants. In general, the invention provides systems including a carrier vector and a producer vector, both based on plant viruses. The producer vector is defective for at least one function needed for successful systemic infection of a plant, e.g., replication, cell-to-cell movement, or long distance movement. The carrier vector supplies the missing function in trans. Certain producer vectors lack a functional coat protein coding sequence, in which case the corresponding producer vector supplies coat protein in trans. The invention also provides novel plant viral vectors and methods of use, e.g., to produce polypeptides or active RNAs in plants.

Abstract: The present invention provides trans-complementation systems for expressing gene products in plants. In general, the invention provides systems including a carrier vector and a producer vector, both based on plant viruses. The producer vector is defective for at least one function needed for successful systemic infection of a plant, e.g., replication, cell-to-cell movement, or long distance movement. The carrier vector supplies the missing function in trans. Certain producer vectors lack a functional coat protein coding sequence, in which case the corresponding producer vector supplies coat protein in trans. The invention also provides novel plant viral vectors and methods of use, e.g., to produce polypeptides or active RNAs in plants.

Abstract: Materials and methods for in vivo de-glycosylation of recombinant N-glycosylated proteins by co-expression with bacterial PNGase F (Peptide: N-glycosidase F) in plants, using a transient expression system are described. Methods are described which, for example, produce recombinant proteins of interest in plants in a non-glycosylated form. A method of expressing active bacterial PNGase F in plants also is provided.

Abstract: Recombinant carrier molecules having amino acid sequences from thermostable enzymes and methods of use for expression, recovery and delivery of foreign sequences (peptides and polypeptides) produced in different systems (bacteria, yeast, DNA, cell cultures such as mammalian, plant, insect cell cultures, protoplast and whole plants in vitro or in vivo are provided. The recombinant carrier molecule using sequences from lichenase B (Lic B) were also made and used as part of carrier protein to express, recover and deliver a variety of target polypeptides of interest.

Abstract: The present invention provides trans-complementation systems for expressing gene products in plants. In general, the invention provides systems including a carrier vector and a producer vector, both based on plant viruses. The producer vector is defective for at least one function needed for successful systemic infection of a plant, e.g., replication, cell-to-cell movement, or long distance movement. The carrier vector supplies the missing function in trans. Certain producer vectors lack a functional coat protein coding sequence, in which case the corresponding producer vector supplies coat protein in trans. The invention also provides novel plant viral vectors and methods of use, e.g., to produce polypeptides or active RNAs in plants.

Abstract: Recombinant carrier molecules having amino acid sequences from thermostable enzymes and methods of use for expression, recovery and delivery of foreign sequences (peptides and polypeptides) produced in different systems (bacteria, yeast, DNA, cell cultures such as mammalian, plant, insect cell cultures, protoplast and whole plants in vitro or in vivo are provided. The recombinant carrier molecule using sequences from lichenase B (Lic B) were also made and used as part of carrier protein to express, recover and deliver a variety of target polypeptides of interest.

Abstract: The present invention provides systems and methods for producing a nucleic acid or protein in transgenic sprouted seedlings or sprouted seedlings engineered to transiently express a nucleic acid or protein of interest. The sprouted seedlings of the invention are grown in a contained, regulatable environment, wherein expression of a pharmaceutically active protein is controlled by an exogenously inducible promoter or a viral promoter. The sprouted seedlings may be eaten live or preferably harvested live to preserve the maximal biological activity of the nucleic acid or protein.

Abstract: The present invention provides systems and methods for producing a nucleic acid or protein in transgenic sprouted seedlings or sprouted seedlings engineered to transiently express a nucleic acid or protein of interest. The sprouted seedlings of the invention are grown in a contained, regulatable environment, wherein expression of a pharmaceutically active protein is controlled by an exogenously inducible promoter or a viral promoter. The sprouted seedlings may be eaten live or preferably harvested live to preserve the maximal biological activity of the nucleic acid or protein.

Abstract: A method of producing metal-rich plants for the production of nutritional supplements. Edible plants are placed in a growth environment containing metal, and are cultivated in a fashion which enhances the uptake of metal into edible portions of the plants. The plants are then harvested, and may be eaten directly or processed into capsule or tablet form, in order to obtain the metallic nutrients so incorporated.