Petri-DB: Cyanobacteria reference (v2)
收藏Zenodo2026-05-31 更新2026-06-05 收录
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https://zenodo.org/doi/10.5281/zenodo.20471792
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资源简介：
Cyanobacteria phylum reference databases for BLAST and MMseqs2 homology search, derived from two complementary sources (NCBI RefSeq and GTDB r220).
v2 update (2026-05-31):
NCBI source expanded from 257 → 2,075 strain assemblies (1 best per strain taxid).
Now includes Synechocystis sp. PCC 6803, S. elongatus PCC 7942, and many more.
All BLAST DBs are taxonomy-aware (built with `-taxid_map`).
Enables `blastp/blastn -taxids <id>` to pre-filter by NCBI taxid at search time.
All MMseqs2 DBs are taxonomy-aware (built with `mmseqs createtaxdb`).
Enables `mmseqs search --taxon-list <id>` to pre-filter by NCBI taxid.
FASTA headers use `accession__seqid` separator (changed from `|` to avoid BLAST taxid_map parsing collision).
GTDB source content unchanged from v1, rebuilt only to add taxonomy embedding.
Build parameters: BLAST 2.16.0+, MMseqs2 18.8cc5c, snapshot 2026-05-31.
Required at search time for -taxids/--taxon-list: NCBI taxdb.
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Zenodo创建时间：
2026-05-31
