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Yan Jessie Zhang

Researcher at University of Texas at Austin

Publications -  33
Citations -  978

Yan Jessie Zhang is an academic researcher from University of Texas at Austin. The author has contributed to research in topics: RNA polymerase II & Transcription (biology). The author has an hindex of 11, co-authored 33 publications receiving 647 citations.

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Systemic depletion of L-cyst(e)ine with cyst(e)inase increases reactive oxygen species and suppresses tumor growth

TL;DR: It was observed that enzyme-mediated depletion of the serum L-Cys and CSSC pool suppresses the growth of multiple tumors, yet is very well tolerated for prolonged periods, suggesting that cyst(e)inase represents a safe and effective therapeutic modality for inactivating antioxidant cellular responses in a wide range of malignancies.
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Endoperoxide formation by an α-ketoglutarate-dependent mononuclear non-haem iron enzyme

TL;DR: The X-ray crystal structures of FtmOx1 and the binary complexes it forms with either the co-substrate (α-ketoglutarate) or the substrate (fumitremorgin B) help to unravel the novel mechanism for this endoperoxide formation reaction.
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Phosphorylation induces sequence-specific conformational switches in the RNA polymerase II C-terminal domain.

TL;DR: Together, context-dependent conformational switches and biased dephosphorylation suggest a mechanism for the selective recruitment of cis-proline-specific regulatory factors and region-specific modulation of the CTD code that may augment gene regulation in developmentally complex organisms.
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Structural heterogeneity in the intrinsically disordered RNA polymerase II C-terminal domain.

TL;DR: Surprisingly, it is found that the repetitive CTD of Drosophila melanogaster is structurally heterogeneous, which implicates conserved structural organization, not a precise array of heptad motifs, as important to CTD function.