Marine Metagenomics Portal (MMP) publicly available

The marine databases; MarRef, MarDb, and MarCat was presented at the ELIXIR All-Hands meeting in Rome 21/3 2017, and are now publicly available. This project is an international deliverable in the ELIXIR-EXCELERATE project. The marine resources, which have been implemented in the Marine Metagenomics Portal (MMP), are a collection of richly annotated and manually curated contextual (metadata) and sequence databases representing three tiers of accuracy.

While MarRef is a database for completely sequenced marine prokaryotic genomes, which represent a marine prokaryote reference genome database, MarDb includes all sequenced marine prokaryotic genomes regardless of level of completeness. MarCat represent a gene (protein) catalogue of uncultivable (and cultivable) marine genes and proteins derived from metagenomics samples. The first versions of MarRef and MarDb contain 484 and 2557 entries, respectively. Each record is build up of 104 metadata fields including attributes for sampling, sequencing, assembly and annotation in addition to organism and taxonomic information.

The contextual and sequence Mar databases are available at

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