Proteomics

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A lysine demethylase-independent function of Phf2 regulates cohesin-mediated DNA replication for neural stem cell activation


ABSTRACT: The activation of quiescent neural stem cells (qNSCs) in the dentate gyrus is required for lifelong neurogenesis. However, the mechanisms that promote the exit of neural stem cells (NSCs) from quiescence remain elusive. We demonstrate that the expression of plant homeodomain finger protein 2 (Phf2) activates the exit of postnatal mouse NSC from shallow quiescence. Loss of Phf2 prevents NSC activation and neurogenesis in postnatal 30 (P30) mice but does not decrease the label-retaining NSC pool, indicating that Phf2 is not required for the exit of NSC from quiescence. NSC-specific deletion of Phf2 modestly compromises embryonic mouse NSC proliferation without increasing apoptosis, indicating that Phf2 is crucial for embryonic development. Moreover, human cortical organoids reveal that Phf2 promotes NPC proliferation via a lysine demethylase-independent manner. Mechanistically, Phf2 directly binds to the cohesion complex via Rad21 and regulates the DNA replication in mouse NSC by associating with the cohesion complex releasing protein Wapl activity. Our study identifies the Phf2-cohesin complex mediated DNA replication for neural stem cell activation in a lysine demethylase-independent manner.

ORGANISM(S): Homo Sapiens (human)

SUBMITTER: Derrick Ong Sek Tong 

PROVIDER: PXD040515 | JPOST Repository | Fri Mar 01 00:00:00 GMT 2024

REPOSITORIES: jPOST

Dataset's files

Source:
Action DRS
20190611_Human_UniProt.fasta Fasta
20220128_TY_YouHeng_PHF2_TMT6_F.msf Msf
20220128_TY_YouHeng_PHF2_TMT6_F.pdResult Other
20220128_TY_YouHeng_PHF2_TMT6_F1.raw Raw
20220128_TY_YouHeng_PHF2_TMT6_F2.raw Raw
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