FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W4231102604> ?p ?o ?g. }

• W4231102604 abstract "Cells are surrounded by a plasma membrane that acts like a barrier around the cell—keeping the cell’s boundaries distinct from surrounding cells and helping to regulate the contents of the cell. This plasma membrane is made up mostly of two layers of fatty molecules, and is also studded with proteins. Some of these membrane proteins act as channels that allow nutrients and other chemicals to enter and leave the cell, while others allow the cell to communicate with other cells and the outside environment. Like all proteins, membrane proteins are chains of amino acids that are linked together by a molecular machine called a ribosome. The ribosomes that make membrane proteins are located on the outside of a membrane-enclosed compartment within the cell called the endoplasmic reticulum. To eventually become embedded within a membrane, a new protein must—at the same time as it is being built—enter a channel within the membrane of the endoplasmic reticulum. The newly synthesized protein chain enters this channel, called Sec61, via an entrance near the ribosome and then threads its way toward the inside of the endoplasmic reticulum. However, there is also a ‘side-gate’ in Sec61 that allows specific segments the new protein to escape the channel and become embedded within the membrane. From here, the membrane protein can be trafficked to other destinations within the cell, including the plasma membrane. However, how the newly forming protein chain passes through the side-gate of Sec61 is not well understood. Now MacKinnon, Paavilainen et al. have used a small molecule called cotransin—which is known to interfere with the passage of proteins through Sec61—to observe the interactions between the Sec61 channel and the new protein. Cotransin appears to trap the new protein chain within the Sec61 channel by essentially ‘locking’ the side-gate. MacKinnon, Paavilainen et al. observed that the trapped protein interacts with the inside of the channel at the end closest to the ribosome—which is the likely location of the side-gate. In contrast, cotransin likely binds at the other end of the channel, to a piece of Sec61 that serves to plug the exit into the endoplasmic reticulum; and this plug is directly connected to the side-gate. By preventing the plug from moving out of the way, cotransin can somehow stop the new protein from passing through the side-gate. However, MacKinnon, Paavilainen et al. did find that some membrane proteins with certain physical and chemical properties could get through the gate, despite the presence of cotransin. The next challenge is to resolve exactly how interactions between cotransin and the Sec61 plug can block the escape of new proteins into the membrane." @default.
• W4231102604 created "2022-05-11" @default.
• W4231102604 date "2013-10-25" @default.
• W4231102604 modified "2023-10-18" @default.
• W4231102604 title "Decision letter: An allosteric Sec61 inhibitor traps nascent transmembrane helices at the lateral gate" @default.
• W4231102604 doi "https://doi.org/10.7554/elife.01483.017" @default.
• W4231102604 hasPublicationYear "2013" @default.
• W4231102604 type Work @default.
• W4231102604 citedByCount "0" @default.
• W4231102604 crossrefType "peer-review" @default.
• W4231102604 hasBestOaLocation W42311026041 @default.
• W4231102604 hasConcept C118892022 @default.
• W4231102604 hasConcept C12554922 @default.
• W4231102604 hasConcept C166342909 @default.
• W4231102604 hasConcept C170493617 @default.
• W4231102604 hasConcept C181199279 @default.
• W4231102604 hasConcept C185592680 @default.
• W4231102604 hasConcept C18903297 @default.
• W4231102604 hasConcept C24530287 @default.
• W4231102604 hasConcept C2778530040 @default.
• W4231102604 hasConcept C2779965526 @default.
• W4231102604 hasConcept C41625074 @default.
• W4231102604 hasConcept C55493867 @default.
• W4231102604 hasConcept C86803240 @default.
• W4231102604 hasConceptScore W4231102604C118892022 @default.
• W4231102604 hasConceptScore W4231102604C12554922 @default.
• W4231102604 hasConceptScore W4231102604C166342909 @default.
• W4231102604 hasConceptScore W4231102604C170493617 @default.
• W4231102604 hasConceptScore W4231102604C181199279 @default.
• W4231102604 hasConceptScore W4231102604C185592680 @default.
• W4231102604 hasConceptScore W4231102604C18903297 @default.
• W4231102604 hasConceptScore W4231102604C24530287 @default.
• W4231102604 hasConceptScore W4231102604C2778530040 @default.
• W4231102604 hasConceptScore W4231102604C2779965526 @default.
• W4231102604 hasConceptScore W4231102604C41625074 @default.
• W4231102604 hasConceptScore W4231102604C55493867 @default.
• W4231102604 hasConceptScore W4231102604C86803240 @default.
• W4231102604 hasLocation W42311026041 @default.
• W4231102604 hasOpenAccess W4231102604 @default.
• W4231102604 hasPrimaryLocation W42311026041 @default.
• W4231102604 hasRelatedWork W12138853 @default.
• W4231102604 hasRelatedWork W13073265 @default.
• W4231102604 hasRelatedWork W18573787 @default.
• W4231102604 hasRelatedWork W31288496 @default.
• W4231102604 hasRelatedWork W32271403 @default.
• W4231102604 hasRelatedWork W32955458 @default.
• W4231102604 hasRelatedWork W3703941 @default.
• W4231102604 hasRelatedWork W4253970 @default.
• W4231102604 hasRelatedWork W6754921 @default.
• W4231102604 hasRelatedWork W42393836 @default.
• W4231102604 isParatext "false" @default.
• W4231102604 isRetracted "false" @default.
• W4231102604 workType "peer-review" @default.