Stephen Floor, PhD

Assistant Professor
Department of Cell & Tissue Biology
Research Overview: 

The Floor Lab studies the mechanisms by which RNA impacts human gene expression in health and disease. RNA chaperones are a major focus of the lab, which remodel RNA structures and RNA-protein interactions. We use deep sequencing, molecular biology of purified proteins, and imaging approaches to define the in vitro and cellular mechanisms of RNA chaperones. Many DEAD-box RNA chaperones are genetically altered in cancers and other diseases. We study the molecular basis of such alterations using cancer cell lines and genetically engineered stem cell models, aiming to better understand human biology and nominate new therapeutic targets or treatment regimens.

Primary Thematic Area: 
Cancer Biology & Cell Signaling
Secondary Thematic Area: 
Developmental & Stem Cell Biology
Research Summary: 
RNA-mediated control of gene expression in health and disease
Mentorship Development: 

4/12/19  Acknowleding and Negotiating the Mentee-Mentor Tensions Inherent in the Research Lab (Parnassus)



Aberrant cortical development is driven by impaired cell cycle and translational control in a DDX3X syndrome model.


Hoye ML, Calviello L, Poff AJ, Ejimogu NE, Newman CR, Montgomery MD, Ou J, Floor SN, Silver DL

SRSF1 governs progenitor-specific alternative splicing to maintain adult epithelial tissue homeostasis and renewal.

Developmental cell

Yu T, Cazares O, Tang AD, Kim HY, Wald T, Verma A, Liu Q, Barcellos-Hoff MH, Floor SN, Jung HS, Brooks AN, Klein OD

Determining the impact of stress granule composition on cell survival.

Biophysical journal

Jesslyn Park, Srivats Venkataramanan, José Liboy-Lugo, Virginia K. Blackwell, Stephen N. Floor

Mapping the regulatory landscape of membraneless organelle assembly and dynamics.

Biophysical journal

Jessica Sheu-Gruttadauria, Xiaowei Yan, Nico Stuurman, Stephen Floor, Ronald D. Vale

The impact of periodic stress on stress granules in human cells.

Biophysical journal

Angela L. Gao, Jose Liboy-Lugo, Jesslyn Park, Stephen N. Floor