Dataset Information

Identification of N-terminal SUMOylation of mouse cofilin-1 by IP-MS

ABSTRACT: Small ubiquitin-like modifier (SUMO) typically conjugates to target proteins through isopeptide linkage to the ε-amino group of lysine residues. This posttranslational modification (PTM) plays pivotal roles in modulating protein function. As a key regulator of actin cytoskeleton dynamics, cofilins (CFLs) are well-known to undergo several different kinds of PTMs. Using mass spectrometry, our study identified the N-terminal α-amino group, rather than any of the ε-amino groups of the internal lysines, as the sole SUMO-conjugation site of cofilin-1 (CFL1).

INSTRUMENT(S): Q Exactive HF

ORGANISM(S): Mus Musculus (mouse)

SUBMITTER: Weiji Weng

LAB HEAD: Yong Li

PROVIDER: PXD038392 | Pride | 2023-10-24

REPOSITORIES: Pride

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Dataset's files

Source:

			Action	DRS
	MS20210819-YS-483-3-WT-CFL.mgf	Mgf
	MS20210819-YS-483__Identification_of_N-terminal_SUMOylation_.raw	Raw
	MS20211215-YS-553-5-1_20211216155656.mgf	Mgf
	MS20211215-YS-553__Identification_of_N-terminal_acetylation_.raw	Raw
	checksum.txt	Txt

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Publications

N-terminal α-amino SUMOylation of cofilin-1 is critical for its regulation of actin depolymerization.

Weng Weiji W Gu Xiaokun X Yang Yang Y Zhang Qiao Q Deng Qi Q Zhou Jie J Cheng Jinke J Zhu Michael X MX Feng Junfeng J Huang Ou O Li Yong Y

Nature communications 20230914 1

Small ubiquitin-like modifier (SUMO) typically conjugates to target proteins through isopeptide linkage to the ε-amino group of lysine residues. This posttranslational modification (PTM) plays pivotal roles in modulating protein function. Cofilins are key regulators of actin cytoskeleton dynamics and are well-known to undergo several different PTMs. Here, we show that cofilin-1 is conjugated by SUMO1 both in vitro and in vivo. Using mass spectrometry and biochemical and genetic approaches, we id ...[more]

PMID: 37709794

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