cell envelope Sec protein transport complex Sec secretion complex Note that this term represents the protein complex involved in transport of proteins across the cytoplasmic membrane. For proteins involved in bacterial type II secretion across the outer membrane, consider annotating to 'type II protein secretion complex ; GO:0015628'. For proteins involved in Sec-complex dependent translocation into the eukaryotic endoplasmic reticulum, consider annotating to 'endoplasmic reticulum Sec complex ; GO:0031205'. Sec complex plasma membrane Sec complex http://purl.obolibrary.org/obo/go.owl Sec translocation complex A transmembrane protein complex involved in the translocation of proteins across the cytoplasmic membrane. In Gram-negative bacteria, Sec-translocated proteins are subsequently secreted via the type II, IV, or V secretion systems. Sec complex components include SecA, D, E, F, G, Y and YajC. [database_cross_reference: GOC:mtg_sensu][database_cross_reference: PMID:15223057] protein-containing complex