6xmu

Structural highlights

Function

SPF1_YEAST Endoplasmic reticulum translocase required to remove mitochondrial transmembrane proteins mistargeted to the endoplasmic reticulum (PubMed:22918956, PubMed:32973005). Acts as a dislocase that mediates the ATP-dependent extraction of mislocalized mitochondrial transmembrane proteins from the endoplasmic reticulum membrane (PubMed:32973005). Specifically binds mitochondrial tail-anchored transmembrane proteins: has an atypically large substrate-binding pocket that recognizes and binds moderately hydrophobic transmembranes with short hydrophilic lumenal domains (PubMed:32973005).^{[1] [2]}

See Also

• ATPase 3D structures

References

1. ↑ Krumpe K, Frumkin I, Herzig Y, Rimon N, Özbalci C, Brügger B, Rapaport D, Schuldiner M. Ergosterol content specifies targeting of tail-anchored proteins to mitochondrial outer membranes. Mol Biol Cell. 2012 Oct;23(20):3927-35. PMID:22918956 doi:10.1091/mbc.E11-12-0994
2. ↑ McKenna MJ, Sim SI, Ordureau A, Wei L, Harper JW, Shao S, Park E. The endoplasmic reticulum P5A-ATPase is a transmembrane helix dislocase. Science. 2020 Sep 25;369(6511). pii: 369/6511/eabc5809. doi:, 10.1126/science.abc5809. PMID:32973005 doi:http://dx.doi.org/10.1126/science.abc5809