Author

Johnson Chung

Brandeis University

Listed by name: these papers carry no ORCID for this author, so different people with the same name may be mixed together.

Biology Disciplines

Click to filter author papers

Biophysics· 1 Molecular Biology· 1

Signature Assays, Organisms & Methods

Click to filter · or open tag

Approach:experimental assay· 2 Organism:bacteria (other)· 1 Assay:fluorescence / live-cell microscopy· 1 Research Focus:protein folding & dynamics· 1 Approach:simulation· 1 Approach:statistical model· 1 Organism:yeast· 1

Frequent Co-Authors

Jeff GellesiD· 2 shared Larry J. FriedmaniD· 2 shared Alex Turek· 1 shared Ariel AmiriD· 1 shared Fiona Stewart· 1 shared Francis Rivera· 1 shared Gabriela G. GiordanoiD· 1 shared James R. PortmaniD· 1 shared

Activity by Year

2026-2026 · peak 2/yr

Co-Author Collaboration Network

10 top collaborators · 30 mutual co-author links

Click any collaborator node to inspect or filter shared papers

Focal author (center)Selected co-authorORCID co-authorUnlinked name

Curved chords = mutual co-authorship

2 shared papersMolecular Biology

Jeff GellesORCID

Mutual co-authors in cluster

Author profile →

2 papers

Recent·Most cited

Dynamics of TFIIH and Spt4/5 during the transition from transcription initiation to elongation

James R. Portman, Kai Torrens, Gabriela G. Giordano, Jongcheol Jeon, Johnson Chung, Larry J. Friedman, Jeff Gelles, Stephen Buratowski

The paper uses single-molecule fluorescence microscopy to show that TFIIH dissociates from RNA polymerase II before Spt4/5 binds, indicating Spt4/5 does not actively displace TFIIH.

Proceedings of the National Academy of Sciences · Oct 28, 2026Peer-reviewedMolecular Biology

Bacterial RNA polymerase exemplifies a general physical mechanism for accelerating protein-DNA association

Francis Rivera, Alex Turek, Wencheng Ji, Matt Copeland, Larry J. Friedman, Fiona Stewart, Johnson Chung, Ariel Amir, Jané Kondev, Jeff Gelles

The paper shows that bacterial RNA polymerase's C-terminal domains accelerate DNA binding through a physical mechanism involving flexible tethers.

bioRxiv · Jul 22, 2026 · PreprintBiophysics