Evidence map›Paper›PMID 42566484›Full record

ArticlePloS one2026

SEGUID v2: Extending SEGUID checksums for circular, linear, single- and double-stranded biological sequences.

Humberto Pereira, Paulo César Silva, M Wayne Davis, Louis Abraham, György Babnigg, Henrik Bengtsson, Björn Johansson

Abstract read
In one paragraph

Article in PloS one, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors.

Humberto PereiraCenter of Molecular and Environmental Biology Engineering, University of Minho, Campus de Gualtar, Braga, Portugal.
Paulo César SilvaCenter of Molecular and Environmental Biology Engineering, University of Minho, Campus de Gualtar, Braga, Portugal.
M Wayne DavisHoward Hughes Medical Institute and School of Biological Sciences, University of Utah, Salt Lake City, Utah, United States of America.
Louis AbrahamPRISM, Université Paris 1, Panthéon-Sorbonne, Paris, France.
György BabniggBiosciences Division, Argonne National Laboratory, Lemont, Illinois, United States of America.
Henrik BengtssonDepartment of Epidemiology and Biostatistics, University of California, San Francisco, California, United States of America.ORCID 0000-0002-7579-5165
Björn JohanssonCenter of Molecular and Environmental Biology Engineering, University of Minho, Campus de Gualtar, Braga, Portugal.

Funding

Translational InformaticsP30CA082103 · NCI · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI Alan Ashworth · 1999 to 2026
$209.7M
Genome engineering in the nematode C. elegansR01GM146005 · NIGMS · UTAH STATE HIGHER EDUCATION SYSTEM--UNIVERSITY OF UTAH · PI ERIK M JORGENSEN · 2023 to 2026
$1.3M
NCI NIH HHS P30 CA082103NIGMS NIH HHS R01 GM146005
6 · The paper itself

Abstract

backgroundSynthetic biology involves combining different DNA fragments, each containing functional biological parts, to address specific problems. Fundamental gene-function research often requires cloning and propagating DNA fragments, such as those from the iGEM Parts Registry or Addgene, typically distributed as circular plasmids. Addgene's repository alone offers around 150,000 plasmids. To ensure data integrity, cryptographic checksums can be calculated for the sequences. Each sequence has a unique checksum, making checksums useful for validation and quick lookups of associated annotations. For example, the SEGUID checksum uniquely identifies protein sequences with a 27-character string.

objectivesThe original SEGUID, while effective for protein sequences and single-stranded DNA (ssDNA), is not suitable for circular DNA since there is no natural starting position nor for double-stranded DNA (dsDNA) since two separate sequences are present. Challenges include how to uniquely represent linear dsDNA, circular ssDNA, and circular dsDNA. To meet these needs, we propose SEGUID v2, which extends the original SEGUID to handle additional types of sequences.

conclusionsSEGUID v2 produces orientation and rotation invariant checksums for single-stranded, double-stranded, possibly staggered, linear, and circular DNA and RNA sequences. Customizable alphabets allow for other types of sequences. In contrast to the original SEGUID, which uses Base64, SEGUID v2 uses Base64url to encode the SHA-1 hash. This ensures SEGUID v2 checksums can be used as-is in filenames, regardless of platform, and in URLs, with minimal friction. AVAILABILITY: SEGUID v2 is readily available for major programming languages, distributed under the MIT license. JavaScript package seguid is available on npm, Python package seguid on PyPi, R package seguid on CRAN, and a Tcl script on GitHub. These tools, along with documentation, examples, and an online SEGUID Calculator, can be found at https://www.seguid.org.

Indexed as

DNADNA, CircularDNA, Single-StrandedSoftwareSynthetic BiologyPlasmidsDNADNA, CircularDNA, Single-Stranded

Identifiers

PMID42566484
PMCPMC13450835

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.