3aqo

Structural highlights

Function

SECDF_THET8 Conducts protons, which can be regulated by a proton gradient or by binding of an unfolded protein. Proton conduction requires the large periplasmic domain of the SecD.[HAMAP-Rule:MF_01463_B] Part of the Sec protein translocase complex. Interacts with the SecYEG preprotein conducting channel. SecDF uses the proton motive force (PMF) to complete protein translocation after the ATP-dependent function of SecA.[HAMAP-Rule:MF_01463_B]