Search field
Use full species name is required (e.g. "Agrobacterium tumefaciens").

Replicon RefSeq accession
RefSeq accession of a chromosome or a plasmid (e.g. "NC_002377"). Click here for a full list of all T4SS-containing replicons in the database.

T4SS name
Entries including " Ptl, VirB, Lvh, Prg/Pcf, ComB, Cjp, Tcp, Tra_F, Cag, Tra_p, Ydd, Trb, Trw, Dot/Icm, Tfc, MagB, Tra_I, Tra_Tn" are accepted.

For example, "conjugation", "DNA uptake", "DNA release" or "effector translocation ".

Component name
For example, "VirB1".

Effector name
Some effectors have common names (e.g. "CagA"). If you can't find any results, try gene names or locus tags.

Protein ID
NCBI protein ID is accepted (e.g. "15645173").