Please use this identifier to cite or link to this item:
Title: The size and phospholipid composition of lipid droplets can influence their proteome
Authors: Fei, W.
Zhong, L.
Ta, M.T.
Shui, G. 
Wenk, M.R.
Yang, H.
Keywords: Lipid droplets
Issue Date: 25-Nov-2011
Citation: Fei, W., Zhong, L., Ta, M.T., Shui, G., Wenk, M.R., Yang, H. (2011-11-25). The size and phospholipid composition of lipid droplets can influence their proteome. Biochemical and Biophysical Research Communications 415 (3) : 455-462. ScholarBank@NUS Repository.
Abstract: The proteomic makeup of lipid droplets (LDs) is believed to regulate the function of LDs, which are now recognized as important cellular organelles that are associated with many human metabolic disorders. However, factors that help determine LD proteome remain to be identified and characterized. Here we analyzed the phospholipid and protein composition of LDs isolated from wild type (WT) yeast cells, and also from fld1Δ, cds1, and ino2Δ mutant cells which produce 'supersized' LDs. LDs of fld1Δ and WT cells exhibited similar phospholipid profiles, whereas LDs of cds1 and ino2Δ strains had a higher (cds1) or lower (ino2Δ) percentage of phosphatidylcholine than those of WT, respectively. Unexpectedly, the presence of most known LD resident proteins was greatly reduced in the LD fraction isolated from cds1 and ino2Δ, including neutral lipid hydrolases. Consistent with this result, mobilization of neutral lipids was seriously impaired in these two strains. Contrary to the reduction of LD resident proteins, the Hsp90 family molecular chaperones, Hsc82 and Hsp82, were greatly increased in the LD fractions of cds1 and ino2Δ strains without changes at the level of expression. These data demonstrate the impact of LD phopholipids and size on the makeup of LD proteome. © 2011 Elsevier Inc.
Source Title: Biochemical and Biophysical Research Communications
ISSN: 0006291X
DOI: 10.1016/j.bbrc.2011.10.091
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.


checked on Jan 11, 2019


checked on Jan 1, 2019

Page view(s)

checked on Jan 18, 2019

Google ScholarTM



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.