PIPages
Labs

Richard Harland

University of California-Berkeley, CA·Biology

How does a ball of identical-looking cells fold, stretch and move to build a body with a head, a back and a nervous system? This project studies early vertebrate development at the molecular level in the frog Xenopus.

Fields

Biology

Genetics

Topics

developmental biology

embryology

Xenopus

Grants
1 known grant, through Mar 2028

What they work on

  1. Determine how members of the Plekhg family of Rho GTP exchange factors, proteins that switch on cell-shape signals, control specific cell behaviors during gastrulation and neurulation in Xenopus embryos, using CRISPR knockdown.
  2. Extend the analysis to other Rho GEFs and GTPase-activating proteins that show early tissue-movement defects, using microinjection, whole-embryo imaging and confocal imaging of tissue explants.
  3. Test the idea that GEFs are deployed selectively to drive particular cell shape changes, to explain how distinct cell behaviors are controlled during vertebrate morphogenesis.

More about the research

Many inherited birth defects in humans are linked to faulty genes that act in early development, so knowing how these genes normally work helps explain how development can go wrong.

Why it matters

Many congenital human diseases involve genes that normally act in early embryonic development. By showing how specific proteins control cell shape changes and tissue movements in a vertebrate embryo, this work adds basic understanding of normal body formation. It could eventually inform how defects in these genes contribute to birth defects.

Known grants

From NIH and NSF research grants. Labs often have other funding we can't see.

Gene Expression in Amphibian Development

NIH · Apr 2018 – Mar 2028

Closest labs

Michael D Sheets

University of Wisconsin-Madison, WI·Biology

Define how Bicaudal-C (Bicc1), an RNA-binding protein, selects its target mRNAs, testing whether multiple independent RNA-binding surfaces in its binding domain determine specificity, using RNA-protein biochemistry and genome-wide approaches.

Amy Sater

University of Houston, TX·Biology

Test how retinoic acid, a vitamin A-derived signal that patterns the embryo from head to tail, triggers the start of glial cell formation in the front region of the developing spinal cord of Xenopus laevis embryos.

Nanette M Nascone-Yoder

North Carolina State University, NC·Biology

Identify which left-right asymmetries in the endoderm, mesoderm and extracellular matrix are required for stomach curvature, using tissue- and side-specific gene function tests and mechanical measurements in frog embryos.

The school

University of California-Berkeley: 46 labs on PI Pages, $1.1B a year on research, 825 research doctorates a year.

More about University of California-Berkeley

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