Biological Sciences Seminars Available for Viewing

The Biological Sciences Seminars are now available for viewing. The presentations have been transcribed and the transcriptions with PowerPoints are available online.

Graduate Students Wanted

Talented student researchers interested in pursuing the Master of Science degree in biology.  Check out the research interests of our faculty and get in touch with your potential advisor today!

Donor Impact Report now available.

College of Natural Sciences Alumni Reunion:
October 11-12, 2013


Recent Publications:

Keller, D.M., McWeeney, S., Arsenlis, A., Drouin, J., Wright, C.V.E., Wang, H, Wollheim, C.B.,White, P., Kaestner, K., and Goodman, R.H. (2007). Characterization of pancreatic transcription factor Pdx-1 binding sites using promoter microarray and serial analysis of chromatin occupancy. J. Biol. Chem. 282: 32084-32092.

Vo, N., Klein, M.E., Varlamova, O., Keller, D.M., Yamamoto, T., Goodman, R.H., and Impey, S. (2005). A cAMP-response element binding protein-induced microRNA regulates neuronal morphogenesis. Proc. Natl. Acad. Sci. USA. 102: 16426-31.

Cha-Molstead, H., Keller, D.M., Yochum, G.S., Impey, S., and Goodman, R.H. (2004). Cell-type-specific binding of the transcription factor CREB to the cAMP-resonse element. Proc. Natl. Acad. Sci. USA. 101: 13572-13577.

Florescent Image
Mouse insulinoma MIN6 cells stained with a fluorescent insulin antibody, revealing the polarized secretory macherinery of pancreatic beta cells.

Beta Cells

Target Genes Insulin

Diagram of a feed-forward transcriptional network in pancreatic beta cells in which Pdx-1 controls the expression of the insulin gene as well as the expression of transcription factors. This type of network can promote long-term activation of the target genes.
Network Pax6
A proposed multi-component loop in which Pdx-1 activates the expression of the transcription factor Pax6, and vice versa. This type of transcriptional network stabilizes the expression of each factor.
Mir-375 Network
A diagram showing a gene regulatory network involving transcription factors and microRNA that functions to control pancreatic beta cell development and insulin release. It is unclear how Pdx-1 and NeuroD1 regulate miR-375 at this time.