TABLE 1.

SUMO proteins in C. reinhardtii and the extent of their similarity to their closest A. thaliana, S. cerevisiae, and human homologs, as well as scores for our SUMO-domain hidden Markov model

C. reinhardtii SUMO name	GenBank protein ID	% similar residuesa to the most similar protein in
				C. reinhardtii	A. thaliana	S. cerevisiae	H. sapiens	HMM score
CrSUMO89A	XP_001700385	SUMO90, 69	SUMO2b, 56	Smt3pc, 64	EAW52726d, 56	11.9
CrSUMO89B	EU553548	SUMO90, 78	SUMO2b, 56	Smt3pc, 55	AAH65723e, 61	24.3
CrSUMO90	XP_001700386	SUMO89A, 77	SUMO2b, 54	Smt3pc, 56	AAH65723e, 64	35.0
CrSUMO96	XP_001695783	SUMO97, 77	SUMO2b, 64	Smt3pc, 61	SUMO-1f, 68	107.8
CrSUMO97	XP_001695782	SUMO96, 80	SUMO2b, 70	Smt3pc, 61	SUMO-3g, 59	112.7
CrSUMO148	XP_001697951	SUMO96, 59	SUMO2b, 34	Smt3pc, 34	SUMO-3g, 54	48.5

^aThe number of identical plus other positively scoring amino acid residue positions divided by the total number of residues in the query protein. Residues downstream of the canonical GG/GN cleavage site motif were disregarded.

^bAt5g55160 small ubiquitin-like modifier 2, A. thaliana.

^cNP_010798 ubiquitin-like protein of the SUMO family, S. cerevisiae.

^dhCG1766780.

^eLOC391257 protein.

^fHuman small ubiquitin-related modifier 1 precursor (SUMO-1) (sentrin), NP_003343 SMT3 suppressor of mif two 3 homolog 1 of S. cerevisiae.

^gHuman small ubiquitin-related modifier 3 precursor (SUMO-3) (ubiquitin-like protein SMT3A), NP_008867 small ubiquitin-like modifier protein 3.