First-pass extracted concept

vault cap

Candidate: concept label1 source documents5 linked claims
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Extracted Explainers

What the tool is doing

The vault cap is the structural subject resolved in this paper. The abstract describes its symmetry, repeating module organization, and charge distribution.

Source 1DOIPubMed

Evidence Snippets

Here, we present a 2.25-angstrom cryo-electron microscopy structure of the vault cap, revealing an unexpected 13-fold symmetric arrangement that contrasts with the 39-fold symmetry of the vault body, with each repeating module of the cap formed by an asymmetric homotrimer of adjacent subunits.
Evidence 1Source 1DOIPubMedprovenance

Supporting Sources

Linked Claims

Claim 1engineering implicationsupports2026Source 1DOIPubMed

The charge properties of the vault cap have implications for binding partner recruitment and engineering of modified vault particles.

Claim 2structural characterizationsupports2026Source 1DOIPubMed

Each repeating module of the vault cap is formed by an asymmetric homotrimer of adjacent subunits.

Claim 3structural characterizationsupports2026Source 1DOIPubMed

The center of the vault cap contains two concentric beta barrels surrounded by an interwoven two-layer stack of alpha helices.

Claim 4structural characterizationsupports2026Source 1DOIPubMed

The vault cap has a 13-fold symmetric arrangement that contrasts with the 39-fold symmetry of the vault body.

Claim 5surface propertysupports2026Source 1DOIPubMed

The vault cap has a positively charged exterior and a negatively charged interior surface.