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GVhalo

Candidate: toolkit itemType: construct pattern1 source documents3 linked claims
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Aliases

GVhalo, naturally synthesized gas vesicles from Halobacterium sp. NRC-1

Extracted Explainers

What the tool is doing

GVhalo refers to naturally synthesized gas vesicles from Halobacterium sp. NRC-1 used here as the native comparator. The abstract presents them as nanoscale ultrasound contrast agents with strong acoustic properties.

Source 1DOIPubMed

Resources required

The source ties their native expression and assembly to a high-salt cytoplasmic environment. This is presented as a practical constraint on direct genetic manipulation.

Source 1DOIPubMed

What problem it solves

They provide a naturally strong acoustic gas vesicle source for biomedical ultrasound imaging and a benchmark for heterologous reconstruction. Their morphology is linked in the abstract to stronger signals and better tumor penetration.

Source 1DOIPubMed

What it does not solve

The abstract indicates that GVhalo is not easy to genetically manipulate directly. It therefore does not by itself solve the need for flexible structural tailoring in heterologous host cells.

Source 1DOIPubMed

Alternatives

The paper compares native GVhalo against heterologously synthesized GVvol in Haloferax volcanii. GVvol is positioned as the engineering-oriented alternative.

Source 1DOIPubMed

Evidence Snippets

The ultrasound imaging properties of GVvol heterologously synthesized in Haloferax volcanii were compared with naturally synthesized GVhalo in vitro and in vivo.
Evidence 1Source 1DOIPubMedprovenance

Supporting Sources

Linked Claims

Claim 1engineering rationalesupports2025Source 1DOIPubMed

Native Halobacterium sp. NRC-1 gas vesicles are difficult to genetically manipulate because their expression and assembly require a high-salt cytoplasmic environment.

Claim 2morphology similaritysupports2025Source 1DOIPubMed

GVvol had similar size and shape to naturally synthesized GVhalo from Halobacterium sp. NRC-1.

Claim 3performance measurementsupports2025Source 1DOIPubMed

GVvol produced ultrasound imaging signal intensities comparable to GVhalo in vitro and in vivo.