Novel O. moubata TSGP4 salivary lipocalin was cloned and characterized.
OmTSGP4 belongs to the clade of cysteinyl leukotrienes scavenger in soft ticks.
Native OmTSGP4 is not immunogenic by natural tick-host contact.
Vaccination with recombinant OmTSGP4 induces strong responses but low protection.
OmTSGP4 is a salivary silent antigen.