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Creators/Authors contains: "Chakraborty, Arindam"

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  1. ; ; ; ; ; ; ; ; ; ; et al (, Molecular and Cellular Biology)
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  2. ; ; ; ; ; ; ; ; ; (, Chemical Science)
    Directional Mn dopant migration (outward/inward) was achieved by inserting a CdZnS “atomic trap” with a small size mismatch with dopants in core/multi-shell QDs. A larger initial substitutional site allows for active trapping and dopant migration. 
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  3. ; ; ; ; ; ; ; ; ; ; et al (, Molecular and Cellular Biology)
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  4. ; ; ; (, The Journal of Physical Chemistry Letters)
  5. ; ; ; ; ; ; (, Langmuir)
  6. ; ; ; (, Journal of Chemical Theory and Computation)
  7. ; ; ; ; ; ; ; ; ; ; et al (, Proceedings of the National Academy of Sciences)
    In eukaryotes, the origin recognition complex (ORC) is required for the initiation of DNA replication. The smallest subunit of ORC, Orc6, is essential for prereplication complex (pre-RC) assembly and cell viability in yeast and for cytokinesis in metazoans. However, unlike other ORC components, the role of human Orc6 in replication remains to be resolved. Here, we identify an unexpected role for hOrc6, which is to promote S-phase progression after pre-RC assembly and DNA damage response. Orc6 localizes at the replication fork and is an accessory factor of the mismatch repair (MMR) complex. In response to oxidative damage during S phase, often repaired by MMR, Orc6 facilitates MMR complex assembly and activity, without which the checkpoint signaling is abrogated. Mechanistically, Orc6 directly binds to MutSα and enhances the chromatin-association of MutLα, thus enabling efficient MMR. Based on this, we conclude that hOrc6 plays a fundamental role in genome surveillance during S phase. 
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  8. ; ; ; (, Journal of Chemical Theory and Computation)
  9. ; ; ; ; ; ; ; ; (, Cell Cycle)
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  10. ; ; ; ; ; ; ; ; (, ACS Nano)