Proteomics

Dataset Information

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The Flemmingsome reveals an ESCRT-to-membrane coupling required for cytokinesis

ABSTRACT: Cytokinesis requires the constriction of ESCRT-III filaments on the midbody side, where abscission occurs. After ESCRT recruitment at the midbody, it is not known how the ESCRT-III machinery localizes to the abscission site. We obtained the proteome of intact, post-abscission midbodies (Flemmingsome) and revealed enriched proteins in this organelle. We propose that the ESCRT-III machinery must be physically coupled to a membrane protein at the cytokinetic abscission site for productive scission, revealing novel common requirements in cytokinesis, exosome formation and retroviral budding.

INSTRUMENT(S): Q Exactive Plus, Q Exactive HF

ORGANISM(S): Homo Sapiens (human)

TISSUE(S): Immortal Cell Line Cell, Cell Culture

SUBMITTER: Thibaut Douché  

LAB HEAD: Arnaud Echard

PROVIDER: PXD013219 | Pride | 2020-05-22

REPOSITORIES: Pride

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Dataset's files

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20151224_TD_Q1_colQ1-15_Neetu_BX1.raw Raw
20151224_TD_Q1_colQ1-15_Neetu_BX2.raw Raw
20151224_TD_Q1_colQ1-15_Neetu_BX3.raw Raw
20151224_TD_Q1_colQ1-15_Neetu_Total2.raw Raw
20151224_TD_Q1_colQ1-15_Neetu_Total3.raw Raw
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Publications

Cytokinesis requires the constriction of ESCRT-III filaments on the side of the midbody, where abscission occurs. After ESCRT recruitment at the midbody, it is not known how the ESCRT-III machinery localizes to the abscission site. To reveal actors involved in abscission, we obtained the proteome of intact, post-abscission midbodies (Flemmingsome) and identified 489 proteins enriched in this organelle. Among these proteins, we further characterized a plasma membrane-to-ESCRT module composed of t  ...[more]

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