TABLE 1.

Posttranslational modifications of TRIM5-21R and TRIM5α_rh proteins

Cell type	Protein	No. of peptides identifieda	% Coverage	MASCOT score (total protein score)
SF-21	TRIM5-21R	77*	54	7365
	Ubiquitin	7†	79	138
293T	TRIM5αrh-HA	42*	47	2162
	Ubiquitin	2	23	63

^a*,Two nested TRIM5-21R phosphopeptides were identified: ⁸¹LREVKLSPEEGQK⁹³ and ⁸³EVKLSPEEGQK⁹³. †, One ubiquitylated ubiquitin peptide was identified: ⁴³LIFAGKQLEDGR⁵⁴.