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PDIA6-scaffolded multichaperone condensate

Candidate: concept label1 source documents5 linked claims
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Aliases

multichaperone condensate, PDIA6 condensates, PDIA6-scaffolded chaperone condensates

Extracted Explainers

What the tool is doing

This paper describes a PDIA6-centered multichaperone condensate in the ER lumen that recruits BiP, ERdj3, PDIA1, and Grp94. The condensate is presented as a spatial organizer of early ER folding machinery.

Source 1DOIPubMed

Resources required

The condensate forms around PDIA6 in the ER lumen and is reported to be Ca2+-dependent. Its described composition includes BiP, ERdj3, PDIA1, and Grp94.

Source 1DOIPubMed

What problem it solves

It addresses the previously unclear question of how ER chaperones are organized supramolecularly to act cooperatively during protein folding. The condensate is linked to enhanced client folding and reduced misfolding.

Source 1DOIPubMed

What it does not solve

The abstract does not show that the condensate solves all ER proteostasis problems or that it applies to every ER client protein. It only gives proinsulin as an example substrate.

Source 1DOIPubMed

Alternatives

The abstract contrasts this condensate-based organization with an unspecified diffuse ER chaperone network whose supramolecular organization had remained unclear.

Source 1DOIPubMed

Evidence Snippets

Here we report the discovery of a multichaperone condensate in the ER lumen, which is formed around the chaperone PDIA6 during protein folding homeostasis.
Evidence 1Source 1DOIPubMedprovenance

Supporting Sources

Linked Claims

Claim 1biological rolesupports2025Source 1DOIPubMed

PDIA6-scaffolded chaperone condensates provide a functional basis for spatial and temporal coordination of the dynamic ER chaperone network.

Quoted textsource-backed
The PDIA6-scaffolded chaperone condensates hence provide the functional basis for spatial and temporal coordination of the dynamic ER chaperone network.
Claim 2compositionsupports2025Source 1DOIPubMed

PDIA6 condensates recruit BiP, ERdj3, PDIA1, and Grp94 as components of the early folding machinery.

Quoted textsource-backed
The PDIA6 condensates recruit further chaperones-Hsp70 BiP, J-domain protein ERdj3, disulfide isomerase PDIA1 and Hsp90 Grp94-which constitute some of the essential components of the early folding machinery.
Claim 3discoverysupports2025Source 1DOIPubMed

The paper reports a multichaperone condensate in the ER lumen formed around PDIA6 during protein folding homeostasis.

Quoted textsource-backed
Here we report the discovery of a multichaperone condensate in the ER lumen, which is formed around the chaperone PDIA6 during protein folding homeostasis.
Claim 4functional effectsupports2025Source 1DOIPubMed

The chaperone condensates enhance folding of proteins such as proinsulin and prevent protein misfolding in the ER lumen.

Quoted textsource-backed
The chaperone condensates enhance folding of proteins, such as proinsulin, and prevent protein misfolding in the ER lumen.
Claim 5mechanismsupports2025Source 1DOIPubMed

PDIA6 condensates form in a Ca2+-dependent manner.

Quoted textsource-backed
The condensates form in a Ca2+-dependent manner