Heimdallarchaeion Hydrogen Synthase Protein Sequences from a Metagenome

Protein sequences of the hydrogen-synthase genes hcnAB_C identified in the Heimdallarchaeion archaeon Aegir_M39_B184. The dataset includes a fused hcnA/B gene and a separate hcnC subunit gene. Trong Thuc Nguyen published this data on figshare in April 2026.

Use Cases

• Comparative sequence analysis of the fused hcnA/B gene against homologs in Pseudomonas fluorescens.
• Phylogenetic placement of the Heimdallarchaeion lineage using hcnC subunit protein sequences.
• Structural modeling of the hydrogen-synthase complex from the provided FAA protein sequences.
• Investigating gene fusion and retention patterns in archaeal metagenome-assembled genomes (MAGs).

Strengths

• Data is openly licensed under CC-BY-4.0.
• Specifically focuses on a novel archaeal lineage (Heimdallarchaeion).

Limitations

• Dataset is extremely small at 1.3 KB, indicating limited sequence data.
• No row count or sample data is provided to assess scope.
• Derived from a single metagenome-assembled genome (MAG), limiting generalizability.

Provenance

Source

figshare, authored by Trong Thuc Nguyen.

Collection Method

Identified from the metagenome-assembled genome (MAG) Aegir_M39_B184.

Time Range

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Freshness

Last updated April 2026.

Geography

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