SecA protein binds to the plasma membrane where it interacts with proOmpA to support translocation of proOmpA through the membrane. SecA protein achieves this translocation, in association with SecY protein, in an ATP dependent manner. This domain represents the N-terminal ATP-dependent helicase domain, which is related to the pfam00270.
Jiyao W et al.(2023). "The conserved domain database in 2023.",