Abstract: Provided are SpdE polypeptides and variants and nucleic acids encoding the SpdE polypeptides and variants. Also provided are vectors including one or more nucleic acids encoding a SpdE polypeptide or variant and cells including a nucleic acid encoding the SpdE polypeptide or variant, as well as cells expressing a SpdE polypeptide or variant and compositions including such cells and a pharmaceutically acceptable carrier. Finally, methods of detecting presence and/or amount of one or more amino acids in a sample are provided. The methods include contacting the sample with a SpdE protein, measuring diguanylate cyclase activity of the SpdE protein; and comparing the diguanylate cyclase activity of the SpdE protein to a control. The methods can utilize isolated SpdE protein or a cell expressing a SpdE protein.

Abstract: Provided are SpdE polypeptides and variants and nucleic acids encoding the SpdE polypeptides and variants. Also provided are vectors including one or more nucleic acids encoding a SpdE polypeptide or variant and cells including a nucleic acid encoding the SpdE polypeptide or variant, as well as cells expressing a SpdE polypeptide or variant and compositions including such cells and a pharmaceutically acceptable carrier. Finally, methods of detecting presence and/or amount of one or more amino acids in a sample are provided. The methods include contacting the sample with a SpdE protein, measuring diguanylate cyclase activity of the SpdE protein; and comparing the diguanylate cyclase activity of the SpdE protein to a control. The methods can utilize isolated SpdE protein or a cell expressing a SpdE protein.

Abstract: Provided are SpdE polypeptides and variants and nucleic acids encoding the SpdE polypeptides and variants. Also provided are vectors including one or more nucleic acids encoding a SpdE polypeptide or variant and cells including a nucleic acid encoding the SpdE polypeptide or variant, as well as cells expressing a SpdE polypeptide or variant and compositions including such cells and a pharmaceutically acceptable carrier. Finally, methods of detecting presence and/or amount of one or more amino acids in a sample are provided. The methods include contacting the sample with a SpdE protein, measuring diguanylate cyclase activity of the SpdE protein; and comparing the diguanylate cyclase activity of the SpdE protein to a control. The methods can utilize isolated SpdE protein or a cell expressing a SpdE protein.

Abstract: Methods of treating or inhibiting inflammation in a subject include administering an anti-inflammatory protein to the subject. In some embodiments, the protein has at least 80% sequence identity to the amino acid sequence set forth as SEQ ID NO: 1, SEQ ID NO: 11, or fragments thereof. Isolated polypeptides, nucleic acids, and recombinant vectors including a nucleic acid encoding the anti-inflammatory protein (such as a nucleic acid encoding a protein with at least 80% sequence identity to SEQ ID NO: 1, SEQ ID NO: 11, or fragments thereof) operably linked to a heterologous promoter are also disclosed.

Abstract: Methods of treating or inhibiting inflammation in a subject include administering an anti-inflammatory protein to the subject. In some embodiments, the protein has at least 80% sequence identity to the amino acid sequence set forth as SEQ ID NO: 1, SEQ ID NO: 17, or fragments thereof. Isolated polypeptides, nucleic acids, and recombinant vectors including a nucleic acid encoding the anti-inflammatory protein (such as a nucleic acid encoding a protein with at least 80% sequence identity to SEQ ID NO: 1, SEQ ID NO: 17, or fragments thereof) operably linked to a heterologous promoter are also disclosed.

Abstract: Methods of identifying compounds that increase ? cell number and/or proliferation by determining the effect of compounds on ? cell number or proliferation in zebrafish pancreas are provided.

Abstract: Provided are SpdE polypeptides and variants and nucleic acids encoding the SpdE polypeptides and variants. Also provided are vectors including one or more nucleic acids encoding a SpdE polypeptide or variant and cells including a nucleic acid encoding the SpdE polypeptide or variant, as well as cells expressing a SpdE polypeptide or variant and compositions including such cells and a pharmaceutically acceptable carrier. Finally, methods of detecting presence and/or amount of one or more amino acids in a sample are provided. The methods include contacting the sample with a SpdE protein, measuring diguanylate cyclase activity of the SpdE protein; and comparing the diguanylate cyclase activity of the SpdE protein to a control. The methods can utilize isolated SpdE protein or a cell expressing a SpdE protein.

Abstract: Methods of treating or inhibiting inflammation in a subject include administering an anti-inflammatory protein to the subject. In some embodiments, the protein has at least 80% sequence identity to the amino acid sequence set forth as SEQ ID NO: 1, SEQ ID NO: 17, or fragments thereof. Isolated polypeptides, nucleic acids, and recombinant vectors including a nucleic acid encoding the anti-inflammatory protein (such as a nucleic acid encoding a protein with at least 80% sequence identity to SEQ ID NO: 1, SEQ ID NO: 17, or fragments thereof) operably linked to a heterologous promoter are also disclosed.

Abstract: Methods of treating or inhibiting inflammation in a subject include administering an anti-inflammatory protein to the subject. In some embodiments, the protein has at least 80% sequence identity to the amino acid sequence set forth as SEQ ID NO: 1, SEQ ID NO: 17, or fragments thereof. Isolated polypeptides, nucleic acids, and recombinant vectors including a nucleic acid encoding the anti-inflammatory protein (such as a nucleic acid encoding a protein with at least 80% sequence identity to SEQ ID NO: 1, SEQ ID NO: 17, or fragments thereof) operably linked to a heterologous promoter are also disclosed.

Abstract: Methods of identifying compounds that increase ? cell number and/or proliferation by determining the effect of compounds on ? cell number or proliferation in zebrafish pancreas are provided.

Abstract: Disclosed herein are bacterial proteins that increase pancreatic beta (?) cell number and/or proliferation, methods of increasing ? cell number and/or proliferation using such proteins, and methods of treating or inhibiting diabetes in a subject by administering such proteins to the subject. In some embodiments, the protein has at least 80% sequence identity to the amino acid sequence set forth as any one of SEQ ID NOs: 1-7, or fragments thereof. Recombinant vectors including a nucleic acid encoding the protein (such as a nucleic acid encoding a protein with at least 80% sequence identity to any one of SEQ ID NOs: 1-7 or fragments thereof) operably linked to a heterologous promoter are also disclosed. Also disclosed are methods of identifying compounds that increase ? cell number and/or proliferation by determining the effect of test compounds on ? cell number or proliferation in zebrafish pancreas.

Abstract: Methods of treating or inhibiting inflammation in a subject include administering an anti-inflammatory protein to the subject. In some embodiments, the protein has at least 80% sequence identity to the amino acid sequence set forth as SEQ ID NO: 1, SEQ ID NO: 17, or fragments thereof. Isolated polypeptides, nucleic acids, and recombinant vectors including a nucleic acid encoding the anti-inflammatory protein (such as a nucleic acid encoding a protein with at least 80% sequence identity to SEQ ID NO: 1, SEQ ID NO: 17, or fragments thereof) operably linked to a heterologous promoter are also disclosed.

Abstract: Disclosed herein are bacterial proteins that increase pancreatic beta (?) cell number and/or proliferation, methods of increasing ? cell number and/or proliferation using such proteins, and methods of treating or inhibiting diabetes in a subject by administering such proteins to the subject. In some embodiments, the protein has at least 80% sequence identity to the amino acid sequence set forth as any one of SEQ ID NOs: 1-7, or fragments thereof. Recombinant vectors including a nucleic acid encoding the protein (such as a nucleic acid encoding a protein with at least 80% sequence identity to any one of SEQ ID NOs: 1-7 or fragments thereof) operably linked to a heterologous promoter are also disclosed. Also disclosed are methods of identifying compounds that increase ? cell number and/or proliferation by determining the effect of test compounds on ? cell number or proliferation in zebrafish pancreas.

Abstract: Disclosed herein are methods of treating or inhibiting inflammation in a subject by administering an anti-inflammatory protein to the subject. In some embodiments, the protein has at least 80% sequence identity to the amino acid sequence set forth as SEQ ID NO: 1 or fragments thereof. Also disclosed are methods of identifying anti-inflammatory compounds by determining the effect of test compounds on inflammation in zebrafish gut. In some embodiments, germ-free zebrafish or zebrafish inoculated with a single defined bacterial strain are contacted with one or more test compounds and a marker of inflammation in the gut is measured and compared to a control. Recombinant vectors including a nucleic acid encoding the anti-inflammatory protein (such as a nucleic acid encoding a protein with at least 80% sequence identity to SEQ ID NO: 1 or fragments thereof) operably linked to a heterologous promoter are also disclosed.

Abstract: Disclosed herein are methods of increasing epithelial cell proliferation (such as intestinal epithelial cell proliferation) by contacting epithelial cells with one or more CBPs. In some examples, the methods include administering the CBP to a subject, such as a subject in need of increased epithelial cell proliferation. Also disclosed herein are methods of identifying a subject having or at risk of developing hyperproliferation of epithelial cells (such as intestinal epithelial cells). Further disclosed are methods of decreasing epithelial cell proliferation by decreasing expression and/or activity of a CBP and methods of identifying inhibitors of epithelial cell proliferation and/or CBP activity.

Abstract: Disclosed herein are methods of increasing epithelial cell proliferation (such as intestinal epithelial cell proliferation) by contacting epithelial cells with one or more CBPs. In some examples, the methods include administering the CBP to a subject, such as a subject in need of increased epithelial cell proliferation. Also disclosed herein are methods of identifying a subject having or at risk of developing hyperproliferation of epithelial cells (such as intestinal epithelial cells). Further disclosed are methods of decreasing epithelial cell proliferation by decreasing expression and/or activity of a CBP and methods of identifying inhibitors of epithelial cell proliferation and/or CBP activity.