Identification of a novel pentatricopeptide repeat subfamily with a C-terminal domain of bacterial origin acquired via ancient horizontal gene transfer

Table 1 Complete list of identified PPR-TGM proteins

Organism	NCBI protein accession	Probability of PPR (%)¹	Number of PPR motifs¹	Probability of mitochondrial targeting (%)²
Cellular slime moulds
Dictyostelium discoideum	XP_646896	100	5	53
Dictyostelium purpureum	XP_003288663	100	5	69
Polysphondylium pallidum	EFA82229	100	3	71
Dictyostelium fasciculatum	EGG13534	97.13	3	15
Entamoebae
Entamoeba nuttalli	EKE39146	99.78	3	N/A
Entamoeba histolytica	XP_001913841	99.78	3	N/A
Entamoeba invadens	XP_004259532	100	5	N/A
Perkinsozoan protists
Perkinsus marinus	XP_002764510	100	4	0
Chlorophyte algae
Ostreococcus lucimarinus	XP_001417638³	100	6	9
Ostreococcus tauri	XP_003079103³	100	6	82
Ostreococcus tauri	XP_003079628	100	6	8
Bathycoccus prasinos	CCO19295³	99.76	3	2
Bathycoccus prasinos	CCO16496	100	6	2
Micromonas pusilla	XP_003056532³	100	5	75
Micromonas pusilla	XP_003059060	100	5	92
Micromonas sp.	XP_002500331	100	6	2
Cryptophyte algae
Guillardia theta	EKX33941	100	4	92
Guillardia theta	EKX51242	100	4	13
Guillardia theta	EKX45176	100	6	43
Haptophyte algae
Emiliania huxleyi	EOD30717	100	7	22
Diatoms
Thalassiosira oceanica	EJK76724	99.96	4	1
Phaeodactylum tricornutum	XP_002177626	100	3	23

¹:Probability scores for the presence of PPR motifs were determined using TPRpred.
²:Probability scores for analysis of mitochondrial targeting were determined using Mitoprot.
³:Sequences contain a CCCH-type zinc finger motif.

ISSN: 1756-0500