Welcome to ChromDB
Three types of sequences are included in the database: genomic-based
(predominantly plant sequences); transcript-based (EST contigs or cDNAs for plants lacking a sequenced
genome); and NCBI RefSeq sequences for a variety of model animal organisms. The Gene Record Page for
any sequence indicates the type of sequence. Click on the names of the organisms presented below to see examples of
Dr. Marjori Matzke and Dr. Antonius Matzke
Our lab has a long standing interest in epigenetic gene silencing in plants. In early experiments, we discovered a
homology- dependent gene silencing phenomenon in which a trans-acting,
sequence-specific signal triggered promoter methylation and
transcriptional gene silencing.
Meet ChromDB staff member Cassie Heinle
Cassie joined the ChromDB staff as an undergraduate assistant while pursuing her Bachelor of Science degree in Molecular and Cellular
Biology at the University of Arizona. We are fortunate to have her join the staff after her recent graduation. As part of her many duties on
the bioinformatics team, Cassie is using Camtasia sofware to develop tutorials to aid users in understanding the website concepts and tools. Her first tutorial introduces concepts
associated with our database identifiers. Please click on the "ChromDB Identifiers" to learn more about this important concept.