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Non-catalytic role of SETD1A promotes gastric cancer cell proliferation through the E2F4-TAF6 axis in the cell cycle (ChIP-seq)

ABSTRACT: SETD1A catalyzes methylation of histone 3 lysine 4 (H3K4) and plays a critical role in development of multiple cancers. The abrrent expression of SETD1A relates to poor prognosis of gastric cancer (GC) patients. Here, we revealed that SETD1A is required for GC cell proliferation. Rescue experiment showed catalytic function is not necessary for GC cell growth and gene expression, whereas a novel non-catalytic FLOS domain is indispensable. The CRISPR screening targeting SETD1A targets identified that TAF6 acts as a downstream target of SETD1A which is essential for GC cell survival. Both SETD1A and TAF6 are required for G1/S cell cycle progression in GC cells. Non-catalytic component of SETD1A regulating expression of TAF6 through coactivating with E2F4s. These results demonstrate that non-canonical roles of SETD1A in GC cell, which supplys a potential therapeutic opportunity for GC.

ORGANISM(S): Homo sapiens

PROVIDER: GSE273824 | GEO | 2025/07/25

REPOSITORIES: GEO

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Non-catalytic role of SETD1A promotes gastric cancer cell proliferation through the E2F4-TAF6 axis in the cell cycle (RNA-seq)

Project description:SETD1A catalyzes methylation of histone 3 lysine 4 (H3K4) and plays a critical role in development of multiple cancers. The abrrent expression of SETD1A relates to poor prognosis of gastric cancer (GC) patients. Here, we revealed that SETD1A is required for GC cell proliferation. Rescue experiment showed catalytic function is not necessary for GC cell growth and gene expression, whereas a novel non-catalytic FLOS domain is indispensable. The CRISPR screening targeting SETD1A targets identified that TAF6 acts as a downstream target of SETD1A which is essential for GC cell survival. Both SETD1A and TAF6 are required for G1/S cell cycle progression in GC cells. Non-catalytic component of SETD1A regulating expression of TAF6 through coactivating with E2F4s. These results demonstrate that non-canonical roles of SETD1A in GC cell, which supplys a potential therapeutic opportunity for GC.

2025-07-25 | GSE273825 | GEO

SETD1A function is mediated through interaction with mitotic regulators BuGZ/BUB3 in leukemia [RNA-seq]

Project description:The H3K4 methyltransferase SETD1A plays a crucial role in leukemia cell survival through its non-catalytic FLOS domain mediated recruitment of cyclin K and regulation of DNA damage response genes. In this study, we identify a functional nuclear localization signal and interaction partners for the FLOS domain. Our proteomics analysis against FLOS domain-binding partners reveals that the SETD1A FLOS domain binds mitosis-associated proteins BuGZ/BUB3. Targeted inhibition of both cyclin K and BuGZ/BUB3 binding motifs on SETD1A shows synergistic anti-leukemic effects. BuGZ/BUB3 localize to SETD1A-positive promoter-TSS regions and SETD1A-negative H3K4me1-positive enhancer regions adjacent to SETD1A-target genes. The GLEBS motif and intrinsically disordered region of BuGZ are required for both SETD1A binding and the leukemia cell proliferation. Despite the role of BuGZ/BUB3 at mitotic phase, the cell-cycle specific SETD1A restoration study indicates the roles of SETD1A at G1/S phase of cell cycle. Discovery of this complex indicates the indispensable role of the SETD1A-BuGZ axis in cancer.

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SETD1A function is mediated through interaction with mitotic regulators BuGZ/BUB3 in leukemia [ChIP-seq]

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Non-catalytic role of SETD1A promotes gastric cancer cell proliferation through the E2F4-TAF6 axis in the cell cycle

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A non-catalytic function of SETD1A regulates Cyclin K and the DNA damage response [RNA-seq]

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Non-catalytic role of SETD1A promotes gastric cancer cell proliferation through the E2F4-TAF6 axis in the cell cycle (ChIP-seq)

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BOD1L mediates chromatin binding and non-canonical function of H3K4 methyltransferase SETD1A (RNA-seq)

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