Colleen Jacks ’79

Alumni and Faculty

Professor in Biology

I am interested in gene expression and how gene expression is regulated. We are using ribosomal protein genes of the plant Arabidopsis thaliana in our investigations. Ribosomes are found in three compartments of the plant cell - the cytoplasm, the plastid (e.g. chloroplast) and the mitochondrion. All three types of ribosomes contain a unique set of proteins, mostly encoded by genes within the nucleus of the cell. The genes encoding cytosolic ribosomal proteins are coordinately regulated, i.e. turned on and off together, in many organisms. In plants, many of the ribosomal proteins are encoded by families of genes. We want to understand the role of each family member in the growth and development of the plant. Currently, we are studying the ribosomal protein S15 gene family. Data from the Arabidopsis genome project indicate there are five members of this gene family and cDNA/EST sequences are available for two members. We are determining the expression pattern in different plant tissues and at different developmental stages for each of these family members using RT-PCR and have isolated a T-DNA insertion mutant for one of the S15 genes. We are also investigating the function and expression of a gene known as H1flk3 linked to one of the S15 genes. This gene of unknown function is one of three related genes isolated from the Arabidopsis genome; the other two genes are linked to histone H1 genes (H1flk1 and H1flk2). We have isolated a T-DNA insertion mutant for the H1flk3 gene.

Education

B.A., Gustavus Adolphus College; Ph.D. University of Minnesota



Courses Taught

Current

BIO-388 (Molecular Genetics) and BIO-388 (Genetics Lab)

Past
Synonym Title Times Taught Terms Taught
BIO-388Genetics Lab142013/SP, 2011/SP, 2010/SP, 2009/SP, 2008/SP, 2007/SP, 2006/SP, 2004/SP, 2003/SP, 2002/SP, 2001/SP, 2000/SP, and 1999/SP
BIO-374Genetics132013/FA, 2012/FA, 2010/FA, 2009/FA, 2008/FA, 2007/FA, 2006/FA, 2005/FA, 2003/FA, 2002/FA, 2001/FA, 2000/FA, and 1999/FA
BIO-201Cell Biology Lab132013/FA, 2012/FA, 2008/FA, 2007/FA, 2006/FA, 2005/FA, 2003/FA, 2002/FA, 2001/FA, 2000/FA, and 1999/FA
BIO-388Molecular Genetics132013/SP, 2011/SP, 2010/SP, 2009/SP, 2008/SP, 2007/SP, 2006/SP, 2004/SP, 2003/SP, 2002/SP, 2001/SP, 2000/SP, and 1999/SP
BIO-201Cell and Molecular Biology112013/FA, 2012/FA, 2007/FA, 2006/FA, 2005/FA, 2003/FA, 2002/FA, 2001/FA, 2000/FA, and 1999/FA
BIO-382Developmental Biology62006/SP, 2004/SP, 2002/SP, 2001/SP, 2000/SP, and 1999/SP
BIO-382Developmental Biology Lab62006/SP, 2004/SP, 2002/SP, 2001/SP, 2000/SP, and 1999/SP
BIO-117Research in Cell Biology22003/JN and 2001/JN
BIO-101Principles Lab12013/FA
BIO-102Organismal Biology Lab12013/SP
FTS-100First Term Seminar12008/FA
BIO-100Biology Explorations12008/SP
BIO-100Biology Explorations Lab12008/SP
BIO-120Our Genome12006/JN
BIO-392Biology Research12003/FA
BIO-396Directed Research Lab12003/SP
BIO-396Directed Research: Ribosomes12003/SP

Courses prior to Spring semester 1999 are not displayed.