Table I.

Proteins identified with purified lipid bodies from oleate-cultured cells

Category	Proteins
Known lipid body proteins	Ayr1p, Eht1p, Erg1p, Erg6p, Erg7p, Erg27p, Faa1p, Faa4p, Fat1p, Hfd1p, Pdr16p, Pet10p, Tg11p Tg13p, Slc1p
Peroxisomal, mitochondrial,     or ER proteins
Peroxisome proteins	Matrix	Membrane
	Cta1p, Faa2p, Fox2p, Idp3p, Pcs60p, Pox1p, Sps19p, Tes1p	None
Mitochondrial proteins	Matrix	Inner/outer membrane or nucleoid
	Bat1p and Cit1p Ald4p, Hsp60p, Ilv5p, and Kgd1p are matrix proteins localized to nucleoids	Aac2, Ady2p, Ald4p, Atp1p, Atp2p, Atp4p, Atp6p, Atp7p, Cor1p, Dld1p, Fmp52, Gut2p, Hsp60p, Ilv5p, Kgd1p, Mcr1p, Mir1p, Nde1p, Nde2p, Ndi1p, Om45p, Pet9p, Phb1p, Por1p, Qcr2p, Qcr7p, Sdh1p, Tom40p
ER proteins	Resident	Trafficking
	Dpm1p, Erg2p, Gpi8p, Gtt1p, Kar2p, Pdi1p, Pmt1p, Sec63p	Arf1p, Erv14p, Sar1p, Sec21p, Ypt1p
Partially in peroxisomes, mitochondria, and/or ER	Acs1p (c, m), Cat2p (m, p), Hxt(6a/o7)pa (pm, m), Msc1p (e, m), Nce2p (c, m, e), Rtn1p (e, m), Rho1p (pm, m, p), Yhb1p (c, m)

Cytosolic proteins
Cytosolic proteins	Translation factors	Chaperones	Others
	Eft1/2p, Rpl4A, Rpl7A, Rpl5p, Rps7A, Rps5p, Tef1/2p, Tif1/2p	Hsc82p, Hsp104p, Ssa3p, Ssb1p	Act1p, Adh2p Fba1p, Gvp36p, Hom3p, Pgk1p
Proteins also in nucleus	Bmh2p, Crm1p, Pdc1p, Rib1p, Ynl101w, Ypr127w
Others	Hhf1/2p (n), Htb(1a/o2)p (n), Pma2p (pm)

Organelle assignments are based on data accumulated at www.yeastgenome.org. Underlined identifications correspond to the 20 best (lowest) logE scores (Fenyo and Beavis, 2003). All identifications in the table have a score below −3, corresponding to at least 99.9% certainty. c, cytosol; e, ER; m, mitochondria; p, peroxisome; pm, plasma membrane; n, nucleus.

^aFor protein1 and/or protein2, identified peptides occur in both proteins, and a unique assignment cannot be made. For protein1/protein2, the two proteins have identical sequences.