Woojin An, PhD

Professor of Cancer Biology

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Overview

Dr. An is a Professor of Cancer Biology at the Keck School of Medicine of USC. His research program is focused on using multi-disciplinary biochemical and cellular approaches to understand fundamental concepts and mechanisms of action of epigenetic histone remodeling in various cellular events. Specifically, his laboratory employs multiple assay systems and methods to dissect molecular details of how histone modification, histone variant exchange, and histone tail proteolysis regulate chromatin structure and control gene expression processes. Current projects involve genome-wide location analysis and functional characterization of histone marks and downstream effectors that are crucial for epigenetic regulation of cell growth, differentiation, and transformation. Dr. An received his Ph.D. in Biochemistry and Biophysics in 1998 from the Oregon State University and did his postdoctoral training at the Rockefeller University. He began his career on the faculty at USC in 2004.

Research Funding

  • Epigenetic Regulation of Osteoclastogenic Gene Expression: Factors, Targets, and Mechanisms
    NIH · R01AR073233 · Aug 1, 2019 – Nov 30, 2024 · Role: Principal Investigator
  • Role of histone kinase VprBP in gene silencing: mechanisms, targets, and regulation
    NIH · R01CA201561 · Jul 15, 2016 – Jun 30, 2021 · Role: Principal Investigator
  • ROLE OF HISTONE H4 N-TERMINAL TAIL IN TRANSCRIPTION REGULATION
    NIH · R01GM084209 · Aug 1, 2008 – Jul 31, 2014 · Role: Principal Investigator

Publications

  • Reconstitution and transcriptional analysis of chromatin in vitro. Methods Enzymol. 2004; 377:460-74.. View in PubMed
  • mAM facilitates conversion by ESET of dimethyl to trimethyl lysine 9 of histone H3 to cause transcriptional repression. Mol Cell. 2003 Aug; 12(2):475-87.. View in PubMed
  • Direct association of p300 with unmodified H3 and H4 N termini modulates p300-dependent acetylation and transcription of nucleosomal templates. J Biol Chem. 2003 Jan 17; 278(3):1504-10.. View in PubMed
  • Selective requirements for histone H3 and H4 N termini in p300-dependent transcriptional activation from chromatin. Mol Cell. 2002 Apr; 9(4):811-21.. View in PubMed
  • SYT associates with human SNF/SWI complexes and the C-terminal region of its fusion partner SSX1 targets histones. J Biol Chem. 2002 Feb 15; 277(7):5498-505.. View in PubMed
  • Activator-dependent transcription from chromatin in vitro involving targeted histone acetylation by p300. Mol Cell. 2000 Sep; 6(3):551-61.. View in PubMed
  • The site of binding of linker histone to the nucleosome does not depend upon the amino termini of core histones. Biochimie. 1999 Jul; 81(7):727-32.. View in PubMed
  • The non-histone chromatin protein HMG1 protects linker DNA on the side opposite to that protected by linker histones. J Biol Chem. 1998 Oct 09; 273(41):26289-91.. View in PubMed
  • Linker histone protection of chromatosomes reconstituted on 5S rDNA from Xenopus borealis:a reinvestigation. Nucleic Acids Res. 1998 Sep 01; 26(17):4042-6.. View in PubMed
  • Linker histone protects linker DNA on only one side of the core particle and in a sequence-dependent manner. Proc Natl Acad Sci U S A. 1998 Mar 31; 95(7):3396-401.. View in PubMed