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Comparison · Infra & APIs
PEIMAN2 vs pr2database
A side-by-side editorial comparison of PEIMAN2 and pr2database — release velocity, themes, recent moves, and the top alternatives to consider.
PEIMAN2 vs pr2database: at a glance
What is PEIMAN2?
PEIMAN2 cut its annotation database loose from its release cycle without breaking CRAN.
PEIMAN2 does enrichment analysis over post-translational modifications, testing whether a protein list is enriched for particular PTMs against UniProt-derived annotations, with translation functions bridging to mass spectrometry workflows. Its answers are only as current as its bundled database, and until June that database could only be refreshed by releasing a new package version. Version 1.1.0 changes that.
What is pr2database?
The protist reference database keeps widening past the rRNA gene it was built on.
PR2 curates ribosomal reference sequences for eukaryotes, distributed as flat files and through a web interface, with each release crediting the specialists who curated individual clades. Since 2022 the structural changes have outweighed the curation: one combined SSU database replaced the separate ones, the taxonomy moved from eight levels to nine, and companion databases for ribosomal operons, mixoplankton and mitochondrial COI have been linked in.
PEIMAN2 vs pr2database: editorial side-by-side
PEIMAN2
0.0INFRA · APIS
PEIMAN2 cut its annotation database loose from its release cycle without breaking CRAN.
◆ Current state
PEIMAN2 does enrichment analysis over post-translational modifications, testing whether a protein list is enriched for particular PTMs against UniProt-derived annotations, with translation functions bridging to mass spectrometry workflows. Its answers are only as current as its bundled database, and until June that database could only be refreshed by releasing a new package version. Version 1.1.0 changes that.
◆ Where it's heading
The package has been moving from a fixed snapshot toward versioned, user-selectable data. Earlier releases updated the bundled database in place — 1.0.0 shipped the March 2025 version and said little else — which meant the annotation vintage was whatever the package version implied. Now update_peiman_database() downloads and caches external database files and UniProt PTM lists, enrichment workflows take a database_version argument, and the mass-spec translators take a ptmlist_version, so an analysis can pin a dated database rather than a package release. The CRAN-safe default is preserved deliberately: loading, examples and checks still use the bundled internal data and need no network.
◆ Prediction
Version pinning is now expressible but the release notes do not describe how a chosen version is recorded in output, so surfacing the active database version in results is the natural companion. The database and the UniProt PTM list are versioned separately, which leaves room for a combined manifest.
pr2database
0.0INFRA · APIS
The protist reference database keeps widening past the rRNA gene it was built on.
◆ Current state
PR2 curates ribosomal reference sequences for eukaryotes, distributed as flat files and through a web interface, with each release crediting the specialists who curated individual clades. Since 2022 the structural changes have outweighed the curation: one combined SSU database replaced the separate ones, the taxonomy moved from eight levels to nine, and companion databases for ribosomal operons, mixoplankton and mitochondrial COI have been linked in.
◆ Where it's heading
The database is becoming a hub rather than a single file. Each recent release integrates something maintained elsewhere, with the ROD, EukRibo, Mixoplankton and now eKOI databases reachable through the same interface, while the SSU flat files themselves change little between versions. Curation continues underneath, clade by clade, at a pace set by which specialist contributed that cycle.
◆ Prediction
Expect the next release to integrate or refresh another linked database while the SSU files see routine curation, following the pattern of the last three.
Alternatives to PEIMAN2 and pr2database
Other Infra & APIs products tracked by Sparkpulse, ranked by recent ship velocity. Each card links to a full editorial trajectory and lets you pivot into a head-to-head comparison with either PEIMAN2 or pr2database.
prioritizr
Conservation planning absorbs the literature's target-setting rules as code.
jSDM
Joint species distribution models in Gibbs-sampled C++, quiet since 2023.
rsofun
An ecosystem model starts tracking carbon isotopes and land-use change.
usmap
Ten years in, US mapping splits its data out and finally adds Puerto Rico.
trackeR
Fitness-tracking analysis in slow maintenance, still absorbing upstream breakage.
See all PEIMAN2 alternatives → · See all pr2database alternatives →
Recent activity from PEIMAN2 and pr2database
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 2mo agoPEIMAN2Database updates decouple from package releases ⚡
- 9mo agopr2databaseeKOI mitochondrial COI database reachable from the interface
- 1y agopr2databaseRibosomal Operon Database 1.2 integrated; ten clades curated
- 1y agoPEIMAN2Bundled database refreshed to the March 2025 UniProt vintage
- 1y agoPEIMAN2Documentation fix for the second example dataset
- 2y agopr2databaseTaxonomy restructured from eight levels to nine ⚡
- 2y agoPEIMAN2Background lists for SEA and PSEA; tidyverse dependency dropped
- 3y agopr2databaseNew web interface at app.pr2-database.org
- 4y agopr2databaseOne SSU database for nuclear, organelle and bacterial sequences ⚡
- 5y agopr2database2,966 sequences added and 3,817 removed across four clades
Frequently asked questions
What is the difference between PEIMAN2 and pr2database?
They serve adjacent needs but don't currently overlap on shipped themes. PEIMAN2 and pr2database are shipping at a similar cadence (velocity 0.0 vs 0.0, both within Sparkpulse's "active" band). See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.
Is PEIMAN2 better than pr2database?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. PEIMAN2 and pr2database are shipping at a similar cadence (velocity 0.0 vs 0.0, both within Sparkpulse's "active" band). For your specific use case, the alternatives sections above list other Infra & APIs products to evaluate alongside.
What are the best alternatives to PEIMAN2?
Top PEIMAN2 alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "PEIMAN2 alternatives" section above for the current picks, or visit /alternatives/peiman2 for the full list with editorial commentary on each.
What are the best alternatives to pr2database?
Top pr2database alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "pr2database alternatives" section above for the current picks, or visit /alternatives/pr2database for the full list with editorial commentary on each.