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. 2018 May 31;10(1-2):17–39.

Figure 3.

Figure 3

Relationships between the known protein components of box C/D and box H/ACA RNPs in eukaryotes, and homologous proteins encoded in archaeal genomes. Only fibrillarin and Nop56/ 58 have been experimentally determined to be associated with box C/D RNAs in archaea (153). Three pairs of eukaryotic snoRNP protein genes are represented by a single gene in archaea: Nop56 and Nop58 (140), p50 and p55 (140), and Snu13 and Nhp2 (R. M. Terns and M. P. Terns, see text). The archaeal Nop56/58 protein is also related to Prp31 (73). The archaeal Snu13/Nhp2 protein is also related to ribosomal protein RPL8 or L7a (R. M. Terns and M. P. Terns, see text). See text for additional details.