Modeling Biology, Molding Therapeutics.

At KLAY, we sculpt the structural foundations of cancer signaling and forge biologic therapeutics for invasive disease.

Yale Cancer Biology Institute (YCBI)

Yale Pharmacology Department

Yale Cancer Center

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STRUCTURE . SIGNALING . TRANSLATION

Instagram

From the Lab

Live feed from @kleinlab.yale.

Research

Focus Areas

Current directions highlighted from lab updates and active programs.

Receptor Tyrosine Kinases (ROS1, ALK, ErbB3)

We define how oncogenic receptor tyrosine kinases are structured, activated, and dysregulated in cancer, leveraging structure-guided approaches to develop next-generation therapeutic antibodies and biologics.

Metabolic Hormones (Isthmin-1 & LEG1)

We study Isthmin-1 and LEG1 as emerging metabolic regulators, uncovering their structures, receptors, and signaling mechanisms that couple nutrient status to cellular and organismal physiology.

Cell Adhesion Receptors (MCAM & Nectin-2)

We define how cell adhesion receptors regulate migration, tumor–immune interactions, and metastatic progression. Through structural and mechanistic studies of MCAM and Nectin-2, we develop biologic therapeutics that modulate adhesion signaling in cancer.

Ion Channel–Mediated Signaling in Cancer

We determine how ion channel subunits (GABRP) adopt signaling functions independent of ion flux. Our work on GABA receptor architecture defines how structural rearrangements enable oncogenic signaling pathways and guide therapeutic intervention.

People

Team

Profiles and roles from Klein Lab at Yale.

Lab Alumni

  • Olivia Belliveau (Undergrad, Yale College)
  • Leilani Fleming (Staples)
  • Jianan Zhang (Graduate Student)
  • Steve Stayrook (Research Scientist)
  • Yueyue Wang (Associate Research Scientist)

Publications

Publication resources

Browse complete and recent output from Klein Lab.

  1. Total Klein Lab publication list.

    PubMed (sorted by date) View PubMed list
  2. Daryl Ewald Klein publication profile.

    Google Scholar View Google Scholar
  3. Nature Communications paper accepted (January 2026): structural basis for regulating ROS1 oncogene activity.

    Lab update

Tools

Klein Lab developed tools

Public resources released by the lab for the research community.

MIXA (Molecular Interaction Analysis)

Interactive space for molecular interaction analysis.

Open MIXA

News

Updates

Recent awards, publications, and translational milestones.

  • February 2026

    Klein Lab receives a 2nd Blavatnik Award for developing ROS1 biologics to treat cancer, following a first-place prize in 2023.

  • January 2026

    Nature Communications paper accepted, describing the structural basis for regulating oncogene ROS1 activity.

  • December 2025

    Klein Lab awarded the Golden Token by Connecticut Innovations and Yale Ventures to support the foundation of a newco spinout.

Collaborate

Interested in working with KLAY?

For collaboration, speaking, and program inquiries, email daryl.klein@yale.edu.

Email the Lab

Downloads

QR Codes for Posters and Slides

Download the official KLAY website and Instagram QR codes for use in presentations, posters, and flyers.