scholarly journals Solution structure of barley lipid transfer protein complexed with palmitate. Two different binding modes of palmitate in the homologous maize and barley nonspecific lipid transfer proteins

1998 ◽  
Vol 7 (12) ◽  
pp. 2490-2498 ◽  
Author(s):  
Mathilde H. Lerche ◽  
Flemming M. Poulsen
2012 ◽  
Vol 22 (1) ◽  
pp. 56-64 ◽  
Author(s):  
Lorna J. Smith ◽  
Wilfred F. Van Gunsteren ◽  
Jane R. Allison

2005 ◽  
Vol 59 (2) ◽  
pp. 356-367 ◽  
Author(s):  
Pedro Da Silva ◽  
Céline Landon ◽  
Benoit Industri ◽  
Antoine Marais ◽  
Didier Marion ◽  
...  

eLife ◽  
2019 ◽  
Vol 8 ◽  
Author(s):  
Tomoki Naito ◽  
Bilge Ercan ◽  
Logesvaran Krshnan ◽  
Alexander Triebl ◽  
Dylan Hong Zheng Koh ◽  
...  

Cholesterol is a major structural component of the plasma membrane (PM). The majority of PM cholesterol forms complexes with other PM lipids, making it inaccessible for intracellular transport. Transition of PM cholesterol between accessible and inaccessible pools maintains cellular homeostasis, but how cells monitor the accessibility of PM cholesterol remains unclear. We show that endoplasmic reticulum (ER)-anchored lipid transfer proteins, the GRAMD1s, sense and transport accessible PM cholesterol to the ER. GRAMD1s bind to one another and populate ER-PM contacts by sensing a transient expansion of the accessible pool of PM cholesterol via their GRAM domains. They then facilitate the transport of this cholesterol via their StART-like domains. Cells that lack all three GRAMD1s exhibit striking expansion of the accessible pool of PM cholesterol as a result of less efficient PM to ER transport of accessible cholesterol. Thus, GRAMD1s facilitate the movement of accessible PM cholesterol to the ER in order to counteract an acute increase of PM cholesterol, thereby activating non-vesicular cholesterol transport.


2002 ◽  
Vol 277 (38) ◽  
pp. 35267-35273 ◽  
Author(s):  
Dharmaraj Samuel ◽  
Yaw-Jen Liu ◽  
Chao-Sheng Cheng ◽  
Ping-Chiang Lyu

2001 ◽  
Vol 259 (3) ◽  
pp. 692-708 ◽  
Author(s):  
Jarek Poznanski ◽  
Patrick Sodano ◽  
Se Won Suh ◽  
Jae Young Lee ◽  
Marius Ptak ◽  
...  

1996 ◽  
Vol 5 (4) ◽  
pp. 565-577 ◽  
Author(s):  
Jérôme Gomar ◽  
Marie-Christine Petit ◽  
Patrick Sodano ◽  
Denise Sy ◽  
Didier Marion ◽  
...  

2021 ◽  
Vol 118 (16) ◽  
pp. e2101562118
Author(s):  
Alireza Ghanbarpour ◽  
Diana P. Valverde ◽  
Thomas J. Melia ◽  
Karin M. Reinisch

The autophagy protein ATG2, proposed to transfer bulk lipid from the endoplasmic reticulum (ER) during autophagosome biogenesis, interacts with ER residents TMEM41B and VMP1 and with ATG9, in Golgi-derived vesicles that initiate autophagosome formation. In vitro assays reveal TMEM41B, VMP1, and ATG9 as scramblases. We propose a model wherein membrane expansion results from the partnership of a lipid transfer protein, moving lipids between the cytosolic leaflets of apposed organelles, and scramblases that reequilibrate the leaflets of donor and acceptor organelle membranes as lipids are depleted or augmented. TMEM41B and VMP1 are implicated broadly in lipid homeostasis and membrane dynamics processes in which their scrambling activities likely are key.


2007 ◽  
Vol 179 (1) ◽  
pp. 11-13 ◽  
Author(s):  
Tim P. Levine

Very few lipid transfer proteins (LTPs) have been caught in the act of transferring lipids in vivo from a donor membrane to an acceptor membrane. Now, two studies (Halter, D., S. Neumann, S.M. van Dijk, J. Wolthoorn, A.M. de Maziere, O.V. Vieira, P. Mattjus, J. Klumperman, G. van Meer, and H. Sprong. 2007. J. Cell Biol. 179:101–115; D'Angelo, G., E. Polishchuk, G.D. Tullio, M. Santoro, A.D. Campli, A. Godi, G. West, J. Bielawski, C.C. Chuang, A.C. van der Spoel, et al. 2007. Nature. 449:62–67) agree that four-phosphate adaptor protein 2 (FAPP2) transfers glucosylceramide (GlcCer), a lipid that takes an unexpectedly circuitous route.


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