Author

Collin Hickmann

University of California, BerkeleyORCID 0009-0001-8587-0448Unclaimed ORCID profile · follow to get notified of new preprints

Biology Disciplines

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Cell Biology· 1 Molecular Biology· 1

Signature Assays, Organisms & Methods

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Organism:Drosophila· 2 Research Focus:cell signaling & trafficking· 1 Approach:experimental assay· 1 Assay:imaging· 1 Approach:statistical model· 1

Frequent Co-Authors

Gary H. KarpeniD· 2 shared Lucy D. BrennaniD· 1 shared Mohammad KhavaniiD· 1 shared Mohammad R. K. MofradiD· 1 shared Serafin U. ColmenaresiD· 1 shared Shingo TsukamotoiD· 1 shared Srigokul UpadhyayulaiD· 1 shared

Activity by Year

2025-2026 · peak 1/yr

Co-Author Collaboration Network

7 top collaborators · 16 mutual co-author links

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2 shared papersCell Biology

Gary H. KarpenORCID

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2 papers

Recent·Most cited

Cell BiologybioRxivPreprintAug 17, 2026

Outside-in progression of heterochromatin replication and exclusion of CDC45 from the PCH domain in Drosophila

Collin Hickmann, Srigokul Upadhyayula, Gary H. Karpen

The paper uses FOC-Map to analyze heterochromatin replication in Drosophila, finding replication foci initially at the PCH domain boundary and later within low-HP1a regions, with CDC45 depletion from the domain.

DOI 10.64898/2026.08.13.744572

Drosophilaimaging

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Molecular BiologyNucleic Acids ResearchPeer-reviewedSep 25, 2025

Expanding the HP1a-binding consensus and molecular grammar for heterochromatin assembly

Serafin U. Colmenares, Shingo Tsukamoto, Collin Hickmann…·Gary H. Karpen

The paper identifies an expanded HP1a-binding motif, HACs, and shows their role in heterochromatin assembly through molecular interactions and simulations.

5 citations

Drosophilastatistical model

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