Besides MLDP, the lipid droplet proteome of Chlamydomonas
is mainly made of proteins involved in metabolism,
transport, vesicle trafficking, redox and other
functions. Among all proteins,[10 % were related to lipid
metabolism; this ratio is increased to 35 %when only the top
20 proteins showing the highest spectra count is considered.
Considering that Chlamydomonas genome contains
*15,000 genes (Merchant et al. 2007), if we estimate that
around 100 proteins are involved in TAG metabolism based
on what we know from the plant model Arabidopsis thaliana
(Li-Beisson et al. 2010), this means that at least 0.6 %
Chlamydomonas genes could be related to TAG synthesis or
turnover. This support the notion that proteome of lipid
droplet is highly enriched in proteins of lipid metabolism.